Whale
species
鯨の種類
Whales are grouped as baleen whales (14 species) or toothed whales (70 species). Baleen whales have baleen plates in theupper jaws and two blowholes on the top of their heads. Toothed whales bear teeth and a single blowhole. Dolphins andporpoises are whales below 4 meters in length.

Baleen whale examples

Blue whale

Bryde’s whale

Fin whale

Humpback whale

Sei whale

Minke whale

Antarctic minke whale

Bowhead whale

Gray whale

Toothed whale examples

BelugaSperm whale

Pilot whale
Killer whale

Bottlenose dolphin

Baird’s beaked whale

Origin of the term "kujira" (whale)
Although there is no definite etymology for the Japanese word for whale (“kujira”), according to one theory, since
whales have big mouths, “kujira” was derived from the term “kuchihiro” (wide mouth). It is also said that in ancient
Korean language, the particle “ku” meant big size, “shishi” indicated a beast or animal, and “ra” represented a postfix;
the term “kushirara” shortened to “kujira”. The kanji character representing “kujira” means big fish. Another term usedin Japan for whale is “isana” and is usually written with the two kanji characters indicating “brave fish”. In the
Manyoshu, the oldest existing collection of Japanese poetry, the term “isanatori” (whale hunter) was used as acustomary epithet in sea-related context. It is also said that the term “isana” has its origins in the ancient Korean
language, meaning “big fish”. Reference: Kujira to Nihon-jin (Seiji Ohsumi, Iwanami Shincho).

1

IWC Organization

What is the IWC?
The International Convention for the Regulation of Whaling (ICRW) was concluded
in 1946. Its purpose was the conservation and management of whale resourcesand ensuring the sustainable use of whales as valuable marine resources for future
generations. To realize this purpose, the International Whaling Commission (IWC)
was founded in 1948 with the 15 main whaling countries of the world as members.
Japan adhered to the IWC in 1951.

International Whaling
Commission (IWC)
Secretariat

Finance and Administration Committee
Scientific Committee

History of the whaling disputeSub-committees
Working Groups
Technical Committee
Conservation Committee
Sub-committees
Working Groups

Changes in IWC membership■ Anti-whaling countries■ No voting rights/absentee countries■ Pro-whaling countries19
5 12 22

27
36

4
7
3
4

4
30

4

2 3
13 8

8

10

32

40

35

40
37

37

28

6
26

26

34

22
27 30

21

21

1 1
19
18 20
1
1
34 32
34
13
1 1 3 3 2 429 26
2 4 4 6 2
26 29
25
8
22
1
4 7
19
17 19
15
15 13 1213
11 10 9 8
11
10
10
10
10
10
9
8
7 7

1948
1949
1952
1955
1958
1961
1964
1967
1970
1973
1976
1979
1982
1985
1988
1991
1994
1996
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012

Establishment (1948 to 1960)
When the IWC began its work, resource management science
was in an early stage. There was limited scientific data
available, and catch quotas were not established other thanthose for the Antarctic Ocean.
1960 to 1972
From 1960, resource management became strengthened withthe establishment of catch quotas per country and capture
prohibition of diminished species. As a result, major whaling
countries, such as the US, UK, Netherlands and Australia,
100
withdrew from their no longer profitable whaling industry.
Instead, cries for animal protection and nature conservation 90
began to be heard, and the anti-whaling movement increasedin activity. A ten-year temporary suspension or moratorium on 80
commercial whaling was adopted in 1972 at the United
Nations Conference on the Human Environment, but it was 70
rejected at the IWC as having insufficient scientific grounds.
60
1972 to 1982
1972 marked the beginning of serious antagonism between
50
anti-whaling and pro-whaling countries. The anti-whaling
countries contrived a strategy to obtain a majority of votes at 40
the IWC, and by 1982, managed to convince 25 countries tojoin the IWC as anti-whaling members. As a result, they came 30
to command a majority of more than 75%, and the IWC
20
moratorium on commercial whaling was adopted that year.
1982 to today10
In 1982 ,the IWC adopted a moratorium on commercial
whaling prohibiting the capture of great whales to take effect in0March 1988. At present, the number of pro-sustainable use
countries which includes Japan, and anti-whaling countries
rival each other so that the three-quarter majority of votes
necessary to abolish the moratorium has yet to be attained.

Present IWC membership is 88 countries*
While the mandate of the IWC as a organization devoted tothe management of whale resources based on scientificevidence is clearly stipulated in the ICRW, a number ofcountries continue to oppose the resumption of commercial
whaling even for species whose resource status has beenscientifically proven to be at high levels of abundance.
However, some of these countries are starting to change theirpositions, and new participation from countries which support
sustainable whaling has been increasing.
* As of December 2013

Pro-whaling/sustainable use (blue）36 countries
Anti-whaling (red）52 countries
Note: Aboriginal subsistence whaling countries: United States of America, Russian Federation, Denmark, St. Vincent & the Grenadines
Commercial whaling countries: Norway, Iceland
Research whaling country: Japan2

Importance of the ecosystem approach

Food pyramid conceptual diagram

Marine ecosystem balance
The marine ecosystem food chain can be described in its simplest
form as plankton eaten by fish and the fish eaten by whales. We canvisualize this as a food pyramid in which the fewer top level organisms
are supported by a larger number of food organisms. With themoratorium on commercial whaling protecting even abundant whale
species, if their abundance continues to increase, the top layer aloneof the food pyramid will expand, upsetting the balance of the marine
ecosystem, since the fish available as food for so many whales would,
by consequence, be reduced.
The sustainable utilization of a certain number of whales based on
scientific evidence is therefore important in terms of maintaining themarine ecosystem balance.

Competition between whales and fisheries
Elucidation of the possible competition between whales and fisheries
Whales are at the top of the food web
Whales are the largest marine mammals and are at the top of the food
web in their ecosystem. The balance of the marine ecosystem will beaffected if whales alone increase excessively in number.

Competition between whales and fisheries
The issue of competition between whales and fisheries (in thewestern north Pacific) implies the consumption by whales ofimportant seafood species, such as Japanese anchovy, Pacificsaury, walleye pollock, salmon and squid. As whales are increasing
in number, their feeding behavior could severely affect fisheries,
which poses a grave problem.

3

Schematic diagram of competition in the western north PacificWhy does Japan conduct whale research?
Starting background
Japan withdrew from commercial whaling in 1987 after the IWC moratorium adoption. The moratorium however was
adopted with the provisory clause that “by 1990 at the latest, the Commission will undertake a ‘comprehensive
assessment’ of the effects of this decision on whale stocks and consider modification of this provision and theestablishment of other catch limits”. From 1987/1988, Japan initiated the whale research program in the Antarctic and to
this day, continues collecting the scientific data necessary for in-depth analyses of the IWC comprehensive assessment,
aiming for its future application on the sustainable utilization of whale resources.

The purpose

Japan‘s whale research has two main components lethal and non-lethal. The non-lethal component includes sighting
surveys with the objective of collecting scientific data for abundance estimation, and the lethal component implies thecapture and taking of whales with the objective of collecting biological data. In order for the IWC to undertake its“comprehensive assessment of whale stocks”, in addition to the estimation of resource abundance based on sighting
surveys, the collection of scientific data that can be obtained only through whale capture, such as resource age
composition and breeding stocks, is also essential. The constant accumulation of this biological data will make it possible
to forecast resource fluctuations with high accuracy, thus leading to the sustainable utilization of whale resources.

The content
To achieve Japan’s whale research objectives, we are studying whale resources from different angles such as the following.
Non-lethal research examples:• Resource abundance (population estimate by visual observation)• Stock distribution (tissue sampling and genetic analysis)

Lethal research examples:• Stock structure (age composition by ear-plug analysis, etc.)• Stock distribution (genetic analysis of tissue samples)• Feeding ecology (stomach contents)

Examples of appraisals using resource data:• Effect of water habitat environmental variation on resources• Resource variation simulation using ecosystem models

Japan’s whale research is a legal right under international law
Under Article VIII of the International Convention for the Regulation of Whaling, IWC member countries have the right toconduct research programs involving the capture of whales for scientific purposes. Even if commercial whaling is bannedby the moratorium, IWC member countries are legally allowed to carry out research whaling. Article VIII also stipulates thatthe research by-products (whale meat) must be used as much as practicable.

Article VIII, International Convention for the Regulation of Whaling
1.

Notwithstanding anything contained in this Convention, any Contracting Government may grant to any of its nationals a special
permit authorizing that national to kill, take, and treat whales for purposes of scientific research subject to such restrictions as tonumber and subject to such other conditions as the Contracting Government thinks fit, and the killing, taking, and treating ofwhales in accordance with the provisions of this Article shall be exempt from the operation of this Convention. EachContracting Government shall report at once to the Commission all such authorizations which it has granted. Each Contracting
Government may at any time revoke any such special permit which it has granted.

2.

Any whales taken under these special permits shall so far as practicable be processed, and the proceeds shall be dealt with inaccordance with the directions issued by the Government by which the permit was granted.

To read the full text of the ICRW visit: http://iwc.int/convention

4

How is decided what research method is best?
Lethal and non-lethal research method choice
There are two kinds of methods employed in whale research. One implies the killing of whales (lethal method) while theother (non-lethal method) does not. Data collection effectiveness and suitability with respect to each research objective as
well as the possibilities to obtain sufficient data are carefully considered to decide which method is best to apply.
The table below shows a comparison between the lethal and non-lethal methods' data collection effectiveness.

Suitability of lethal and non-lethal research methods according to research item and objective
Allows collection ofplenty enough data?

Non-lethal method

Allowscollection ofdata?

Age determination(To understand age composition, age at maturity,
recruitment rate)

Earplug analysis✔

✔

Negative

No

No

Blubber thickness and other biological conditionindicators(To understand feeding ecology)

Blubber thickness analysis✔

✔

Negative

No

No

Stomach content analysis✔

✔

Fecal matter✔

No

Stomach content analysis✔

✔

Negative

No

No

Tissue analysis✔

✔

Biopsy (skin sample)✔

No

Internal organ/tissue analysis✔

✔

Biopsy (skin sample)✔

No

Negative

No

No

Visual counting✔

✔

Tag recovery✔

No

Satellite tagging✔

No

Research item (Research objective)

Stomach content qualitative analysis(To understand feeding ecology)

Stomach content quantitative analysis(To understand feeding ecology)

Genetic analysis(To understand stock structure and mixing degree)

Pollutant and internal organ observation(To understand effects of environmental pollution)

Number of individuals(To estimate resource abundance)

Migration, behavior, habitat preference(To understand behavioral ecology) ）5

Lethal methodJapan’s whale research in the Antarctic
JARPA (1987/88 - 2004/05)
Japan’s Whale Research Program under Special Permit in the Antarctic (JARPA)
The IWC moratorium on commercial whaling was introduced because of the uncertainty surrounding the scientific data then available.
Japan's Whale Research Program under Special Permit in the Antarctic was started in order to address this matter, and to accumulatescientific data on the abundant Antarctic minke whale resources.

JARPA II (2005/06-)
The Second Phase of Japan’s Whale Research Program under Special
Permit in the Antarctic (JARPA II)
To be able to conduct future resource estimates, first, it is necessary to understandthe population dynamics of baleen whales in a specific sea area. To do so,resource analysis of individual whale species is not only necessary, but we need at
the same time to take into account the whale inter-species relationship in theecosystem of said sea area.
The JARPAII program started in 2005 with the Antarctic minke whale, the fin whale
and the humpback whale as research target species. The results will be reviewed
every six years, and the first review meeting by the IWC Scientific Committee washeld on February 2014 in Tokyo.
Concerning the humpback whale, in 2007 the United States, which at the time was
the IWC Chair, made a request for the suspension of sampling of this species.
Japan, in the interest of bringing about a more forward atmosphere in negotiations
with an aim to put an end to the deadlock situation reigning at the IWC (the "Futureof the IWC" process), decided to put off for the time being the sampling of thisspecies.
。

Objectives

1) Monitoring of the Antarctic ecosystem
2) Modeling whale inter-species competition
3) Elucidation of temporal and spatial changes in stock structure4) Improving the management procedure for the Antarctic minke whale
stocksResearch area
Of the six IWC Antarctic management areas, the eastern part of Area
III, Area IV, Area V and a part of western part of Area VI (South of 60
S, 35 E - 145 E) are used for research. Cruises are conducted
alternately on each half so two years are required to survey the whole
reasearch area.

Planned number of samples
850 ±10% Antarctic minke whale
50 fin whales
50 humpback whales

Main research organization
The Institute of Cetacean Research

Safety at Sea Legal Action against Sea Shepherd and Paul Watson
On December 2011, the Institute of Cetacean Research and Kyodo Senpaku filed their original complaint to the U.S. District ofWashington Federal Court seeking preliminary injunctive relief to protect their research vessels and crews against violent and unlawful
attacks by Sea Shepherd and Paul Watson. On March 2012, the District court issued a ruling that rejected the preliminary injunction
requested by the Institute of Cetacean Research and Kyodo Senpaku. After appealing to the U.S. 9th Circuit Court of Appeals, inFebruary 2013, the 9th Circuit reversed the Washington District Court's original ruling on all counts and issued an Order enjoining Sea
Shepherd, Paul Watson and anyone acting in concert with them from physically attacking the Japanese research vessels and ordered an
appointment of another judge by the District Court for the case. At present, the case is pending in court..

6

Japan’s whale research in the Western North Pacific
JARPN (1994 - 1999)
Japan’s Whale Research Program under Special Permit in the Western North Pacific (JARPN)
In the IWC discussions to establish catch quotas of minke whales in the seas off Japan, the anti-whaling countries claimed that there werenumerous stocks (small breeding groups within the same whale species) of minke whales in the Western North Pacific, aiming tocomplicate the calculations in a way that would produce lower quotas. The JARPN research program was created to disprove this theory.

JARPN II ( 2000 - )The Second Phase of Japan’s Whale Research Program under Special Permit in the Western North Pacific (JARPN II)
The first phase of the program demonstrated that the theory of the Japanese scientists which stated that "in the western north Pacific, there
are only two minke whale stocks“ was correct. JARPN also revealed that minke whales consume huge amounts of fishery resources. Thus,
JARPN II was planned to further elucidate the feeding ecology of the various whale species aiming for the comprehensive management of
the marine ecosytem.

Objectives
1) Feeding ecology and role of whales in the ecosystem
2) Monitoring pollutants in whales and the marine ecosystem
3) Elucidation of whale stock structure

JARPN II research area

Research area
Of the thirteen Sub-areas established by the IWC Scientific Committee,
Sub-areas 7, 8 and 9 are used for research.

Planned number of samples
220 minke whales
100 sei whales
50 Bryde’s whales
10 sperm whales

Main research organizations
The Institute of Cetacean Research
National Research Institute of Far Seas Fisheries, Fisheries
Research Agency
Association for Community-Based Whaling

Whale body measurements

Sighting survey

7

A sperm whale pod

IWC/Japan joint Pacific Ocean whale and ecosystem research program
The IWC/Japan joint Pacific Ocean whale and ecosystem research program (IWC -POWER) is a cetacean sighting survey program being
carried out collaboratively by the IWC and Japan since 2010. IWC-POWER applies the know-how and expertise acquired during theInternational Whaling Commission-Southern Ocean Whale and Ecosystem Research (IWC-SOWER) program executed from 1996, endingin 2010. The IWC-POWER content reflects the major research agenda of the IWC Scientific Committee. During the first three cruises, alarge number of fin, sei and humpback whales were observed in the research area, where a large scale sighting survey had not been
conducted for more than half a century.
The IWC-SOWER program made a huge contribution to elucidating abundance trends of whale stocks, including the Antarctic minke whale.
It is recognized as the most successful international collaborative research effort conducted under the auspices of the IWC. Japan has
made and continues to make a substantive contribution to conducting and operating these international whale research programs byproviding research vessels and crew members from beginning to end.

Objectives
1) Estimation of sei whale abundance (and other species where possible, especially fin whales)2) Collection of information on stock structure, particularly biopsy samples, with priority given to sei, fin and sperm whales
3) Collection of photo-identification data and biopsy samples for rare species encountered, especially North Pacific right whales andblue whales

International researchers
Year

Cruise leader

Researchers

2010

1 (Japan)

3(USA, South Korea, Japan）

2011

1 (Japan)

1 (USA)2012

1 (Japan)

3（USA, South Korea, Japan）

2013

1 (Japan)3(Mexico, South Korea, Japan）

Blue whale

Sei whale biopsy sample collection

Fin whale cow and calf. The white rightside jaw is characteristic of the species.

Humpback whale breaching at the upper
Gulf of Alaska.

IWC-POWER research area

Killer whale biopsy sample collection

North Pacific right whale observed off Kodiak
Island8

Things revealed by Japan’s whale research in the Antarctic
Antarctic ecosystem changes made clear by research whaling
1.

Baleen whales reduced by early 20th century commercial whaling are recovering

The abundance of the Antarctic minke whale, the main target species of whale research, largely increased from the 1940s to the 1970s.
Results from 1992 to 2004 Japan's whale research made possible for the IWC to estimate Antarctic minke whale abundance as
515,000. Further, no big variation in abundance has been observed during the research period. In other words, the Antarctic minke
whale abundance is consistently high.

The figure above shows the Antarctic minke whale abundance trend in research Areas IV and V. The vertical lines indicate abundance estimate 95%
confidence interval.

Humpback and fin whale resources deteriorated due to commercial whaling but since 1990 they are showing an increasing recovery
trend. On the other hand, Japan's whale research results show that, owing to the humpback and fin whale recovery, the Antarctic
minke whale distribution is shifting southward.

9

Humpback Area IV

Humpback Area V

Fin whale
Area IIIE+IV

Fin whale
Area V+VIW

Humpback whale:
The left figure shows yearly researchabundance estimates for humpback whale.
Vertical lines indicate abundance estimation
95% confidence interval. Estimatedabundance trend is rising to the right in bothresearch Areas IV and V. From 1989 to 2009
the estimated abundance annual increase
rate was 13.6% in Area IV and 14.5% in AreaV.
Fin whale:
The left figure shows yearly researchabundance estimates for fin whale. Verticallines indicate abundance estimation 95%
confidence interval. Estimated abundancetrend is rising to the right in both research
Areas IIIE+IV and V+VIW. From 1995 to2009 the estimated abundance annual
increase rate was 8.9% in Area IIIE+IV and
12.0% in Area V+VIW.

Findings from Japan’s whale research in the Antarctic
2. Changes in Antarctic large whale species composition during the JARPA/JARPAII research period
The distribution range of humpback whales in research Area IV enlarged from 1989 to 2006, but the Antarctic minke whale
distribution did not change over the same period and area. The number of humpback whale sightings was highest in Area IV
while in Area V, humpback whales were second to Antarctic minke whales with regards to the number of sightings.

■ Fin whale■ Humpback whale■ Antarctic minke whale

Early period

Middle period

Late period

Occupied area indices of Antarctic minke and humpback whales in research Area IV in early (1989 to 1994), middle (1995 to 2000) andlate (2001 to 2006) periods. If the index was 1 (red), only Antarctic minke whales were present in a unit area while only humpback whales
were present if the index was -1 (blue). If the index was 0 (cream), probabilites of the presence of Antarctic and humpback whales in aunit area were identical.
(Murase,H., Matsuoka, K., Hakamada, T and Kitakado, T. Preliminary analysis of changes in spatial distribution of Antarctic minke and humpback whales in Area IV
during the period of JARPA and JARPAII from 1989 to 2006. SC/F14/J18)

10

Findings from Japan’s whale research in the Antarctic
3.

Antarctic minke whale changes

Stock abundance is almost constant
The Antarctic minke whale abundance showed no major change and has been almost constant throughout the whole JARPA II
research area (IIIE to VIW areas) during the research period.

Change in sexual maturity

The Antarctic minke whale age at sexual maturity
was about 12 years around 1945 but declined to 7
years by 1970 and has been constant or very slightly
increasing since then. It is thought that this age atsexual maturity decline may be due to an increased
growth speed. One of the causes of an increase in
the Antarctic minke whale growth speed may be therise in food (krill) availability resulting from thereduction of great baleen whale stocks bycommercial whaling. However, in recent years, theabundance of some of these great whale species has
increased too, so the food environment mostfavorable to the Antarctic minke whale may havealready elapsed and may be now gradually
deteriorating.

Whale nutrition index downturn
The thickness of the Antarctic minke whale blubber(a layer of fat under the skin where energy is stored)
has been decreasing. The mean stomach content
weight of whales in the offshore sea areas has been
decreasing too. Further, the individual daily foodintake has dropped as well, regardless of thewhale's
sex
(male
or
female)andmaturity/immaturity state. However, in sea areas
where humpback whales are not distributed, suchas the Ross Sea, the stomach content weight of(female) Antarctic minke whales has not decreased.

4.

Fin whale changes
The data suggests that since commercial whaling times, the fin whale age at sexual
maturity has been decreasing. Also, the body weight of fin whales taken during
research whaling has increased compared to relative body lengths from the 1950sreports. These changes may be an indication of improved nutrition condition. Further,in the research area east side (V and VIW areas), a remarkable increase in fin whale
population abundance was confirmed.

5.

Environmental fluctuation

A decrease in sea ice due to the effect of global warming has not been detected in
the research sea area. Pollutant and marine debris analysis show that the Antarctic
Ocean environment supports one of the cleanest ecosystems of the world.

Fin whale body length and body weight relationship.
Black dots and solid line show research whaling data
while white dots and dotted line represent data fromcommercial whaling.
(Mogoe, T., Bando, T., Maeda, H., Kato, H and Ohsumi, S..
Biological observations of fin whales sampled by JARPAII in
the Antarctic. SC/F14/J10)

11

Findings from Japan’s whale research in the Antarctic
Contribution to new management of whale resources
1. Antarctic minke whale stock structure

Antarctic minke whale stock structure hypothesis

From DNA sequence and other data analysis, we now knowthat (1) there are two separate Antarctic minke whale stocks(I-stock and P-stock) distributing east and west in the researcharea; (2) the sea area where both stocks distribution overlaps
broadens from the Area IV east side to the Area V west sideand the boundary location changes from year to year; and (3)the stock distribution boundary may change depending on sex(male or female).
Besides the Antarctic minke whale, other findings include:
humpback whale resources are increasing, segregation bywhale species and their growth stages, and their extremely
broad range of movement.

2.

Fin, humpback and southern right whale stock structure

Through genetic analysis, we have made advances in understanding the stock structure of three other baleen whale species,
besides the Antarctic minke whale. For example, the distribution range of the humpback D-stock (western Australia) and E-stock(eastern Australia, New Caledonia, Tonga) has been analyzed in detail so that now it has become clear there are sea areas
where only a single stock is distributing while in another area, the range of both stocks overlaps.

３． Suitability of IWC management areas
From the results of genetic and non-genetic analysis, it has become clear that (1) the distribution of individual Antarctic minke
whale stocks does not match with the current management areas set by the IWC, (2) for humpback and fin whales, separate
stocks within the current management Areas III, IV, V and VI do match with the IWC management areas; and (3) that within the
research area, the southern right whale movements are mainly concentrated within Area IV.

4.

Whale resource dynamics model and biological parameters

For sustainable utilization of resources, stock reduction due to capture and other factors and their natural increment must be balanced
in a way that the number of captures exerts only a minimal change on the resource without affecting abundance.
Factors that may affect resource abundance, include human capture, mortality within the natural life cycle (due to predators, disease,starvation, stranding) and the recruitment of new generations through reproduction. The study of all these factors is of utmost
importance for the management of whale resources.
Biological parameters such as the natural mortality index, recruitment rate, and pregnancy rate are pieces of information extremely
important and necessary to understand the population dynamics of whales.

Conclusions up to now
The Antarctic ecosystem is undergoing big changes
The findings introduced here are the result of Japan's long-term and comprehensive research effort. Japan's whale researchcombines both lethal and non-lethal components that allow us to obtain data from a wide range of research fields. The
combined and comprehensive analysis of this data makes it possible to better understand the Antarctic marine ecosystem. As
we know now that the Antarctic ecosystem is undergoing big changes, its monitoring through systematic and continuous
research becomes all the more necessary in order to achieve the conservation and management of marine living resources.

12

Findings from Japan’s whale research in the Western north Pacific
Number of whales distributing
A large number of minke whales is present during the months of May to June. In the following months (July to August), theymigrate northward moving to the Okhotsk Sea. The numbers in yellow in the respective sea areas below indicate the numberof whales distributing at a certain time and in a specific sea area. They do not indicate stock abundance.
Similar estimations have been calculated for Bryde's and fin whales. The data concerning the number of whales distributing isused to estimate the amount of fish resources consumed by whales in the JARPNII research area.
Minke whales in offshore waters

May to June: 7,338 whales distributing

July to August: 2,976 whales distributing

Assessment of feeding by whales

Prey (whale food) species
OthersWhales feed on a wide range of fishery resource
organisms ,including copepods, krill, anchovy,
Pacific saury, mackerel, walleye pollock andJapanese flying squid. From JARPAII data ,it wasestimated that from May to September ,minke
whales consume 150,000 tons, sei whales 900,000
tons, and Bryde's whales consume 530,000 tons offood organisms.
Even within the same whale species, depending on
the sea area and season, the type of food organism
they consume changes. Further, we know now thatprey type may change depending on the year. The
kind of food organism they feed on also varies
depending on whale species.

Minke whale stomach containing
Pacific pomfret and salmon

13

Minke whale stomach
containing squids

Japanese flying squid

100%

Walleye pollock

80%

Mackerel

60%

Saury

40%

Anchovy (>8cm length)20%0%Anchovy (<8 cm length)
Krill

Minke
whale

Sei
whale

Bryde'swhale

Copepods(Tamura, T., Konishi, K., Isoda, T., Okamoto, R and Bando, T. Prey consumption and feeding
habits of common minke, sei and Bryde’s whales in the western North Pacific . SC/J09/JR16)

Sei whale stomach contents(Pacific saury)

Bryde’s whale stomach
containing anchovies

Findings from Japan’s whale research in the Western north PacificFisheries
catch increase ratio (%)
漁獲量の増加割合（％）

Fisheries output change andwhaling
As an example of data application inecosystem modelling, let's assume that
4% of minke, sei and Bryde's whales'
stocks were taken during a 50 year
period. As the right figure shows, theresults indicate that fisheries catches for
species, such as anchovy, mackerel andskipjack tuna, would increase.

100
90
80
70
60
50
40
30
20
10
0

Stock structure elucidation

Okhotsk south side

Genetic analysis of samples taken in the research program
showed that minke whales in sub-areas 7, 8 and 9 belong to
the same genetic group which is entirely different from thestock distributed in the Japan Sea. The results indicate that
there are two different stocks of minke whales, one in the
Pacific side (O stock) and another in the Japan Sea (Jstock).
Further to the minke whale samples collected during the
research program, the analysis of genetic data collectedfrom minke whale coastal bycatch events across Japan, has
now clarified that both J and O stocks actually mix in the
Pacific coastal area, and it is helping us better understandtheir distribution situation along the Japanese coast.
* By-catch or incidental capture is when a marine mammal or otherorganism is unintentionally caught while fishing for a specific target
species. The DNA registry of whales captured incidentally in fixed nets
along the coast of Japan is obligatory. Tissue samples of such whales
are compulsorily sent to the Institute of Cetacean Research for their
DNA analysis and registration.

Indistinguishable
individuals

J-stock

Offshore
BycatchO-stock

Japan Sea
Offshore

Pacific north side

Bycatch
BycatchPacific south side
BycatchDistribution pattern of individual whales identified as belonging to either O-stock or to J-stock (circle
shades indicate ratio)
Note: The white-checked shadow indicates indistinguishable individuals, i.e. individuals that could
not be identified as belonging to either O-stock or to J-stock because their analysis did not include acomplete identification marker.

Conclusions up to now
Future contributions to ecosystem model-based management of marine living resources including
whales● Whales prey on a number of other fisheries species consuming amounts large enough to majorly impact those resources. Whaleabundance (number of individuals) and their amount of prey consumption are utilized as ecosystem model data. Calculations using
these ecosystem models have already produced preliminary results. Obtaining such information which is useful to understand theecosystem structure will make it possible for further improvement of the ecosystem models thus facilitating the availability of new
information necessary for ecosystem-based management of fishery resources that are also whale prey species.
● The research program continues to monitor contaminants through pollutant studies on western north Pacific whales, prey species
and environmental samples. These studies will contribute to future projections on pollutants in this sea area.
● The existence of two distinct minke whale genetic groups, the J-stock and the O-stock, is one piece of important information
obtained through this research program.

14

Number of whales captured in whale research
Japan's whale research includes the capture of a number of whales in order to collect valuable
scientific data. This number of whales is the minimum required for obtaining useful data and has
no negative effect on the abundance of the whale species being studied.
Japan's whale research annual sample number is 100 sei whales, 50 Bryde's whales, 220 minke
whales and 10 sperm whales in the western north Pacific and 850 Antarctic minke whales and 50
sperm whales in the Antarctic Ocean. These sample numbers have been calculated throughstatistical methods as the minimum required to obtain scientific data that may allow elucidation ofdifferent research objectives.
Further, the current abundance estimates for the whale research target species are as follows: Sei
whale 21,612; Bryde's whale 20,501; minke whale 25,000; sperm whale 102,112; Antarctic minke
whale 515,000; fin whale 11,755 (see table below).
In other words, Japan's whale research captures represent only 0.01% to 0.52% of the respective
resource. Aiming for the sustainable utilization of whale resources, Japan's whale research
capture levels are kept at the necessary minimum. As the data below clearly shows, the numberof whales sampled has no negative effect on each resource species.

Species

Distributingarea

Abundance

SamplenumberRatio

Sei whale

Western northPacific

21,612100

0.46%

Bryde’s whale

Western northPacific

20,50150

0.24%

Minke whale

Western northPacific

25,000220

0.88%

Sperm whale

Western northPacific

102,112100.01%

Antarctic minke
whale

Southern
Hemisphere

515,000

850

0.17%

Fin whale

Southern
Hemisphere

11,75550

0.43%

For more detail about sample size calculation see:
SC/57/O1 Plan for the Second Phase of the Japanese Whale Research Program underSpecial Permit in the Antarctic (JARPA II) http://www.icrwhale.org/ResearchPlan.html

15

The Revised Management Procedure (RMP) and the
Revised Management Scheme (RMS)
The moratorium on commercial whaling wasintroduced on the grounds that there wereuncertainties in scientific knowledge concerning whale
stocks and their management. In an effort to solve theproblem, the IWC Scientific Committee completed the
Revised Management Procedure (RMP) in 1992 after
long and arduous discussions. The RMP is designed
to calculate safe catch quotas taking uncertainty
related to various factors into account and preventing
any risk of depleting whale stocks. When the RMP
was applied to Antarctic minke whales with anestimated population of 760,000, the result was thatthe capture of at least 2,000 Antarctic minke whales
per year for the next hundred years would not have an
adverse effect on the stock.

Completion of the RMS for the resumption of whaling

However, the anti-whaling countries proposed theintroduction of an inspection and observer system andother catch verification measures as an additional
condition for RMP implementation so that the RMS
has not been completed yet.
After that, IWC discussions on the RMS continued forsome time, but with the anti-whaling countries holding
the majority and their refusal to review the moratoriumon commercial whaling, the ongoing work for RMS
completion was suspended as a matter of fact.
RMP: Revised Management Procedure
RMS: Revised Management Scheme

16

The ‘Future of IWC’ process
Antagonism between pro-sustainable use and anti-whaling
countries at the IWC arising from disparities on their basic
position about the utilization of whale stocks has led to thecurrent situation where the IWC has become dysfunctional
and unable to make any substantial decision on the
management and conservation of whale resources. To
resolve the situation, in 2008, the "Future of the IWC" process
was initiated aiming to achieve a comprehensive agreementon the main issues faced by the Commission.
However, as no agreement was reached both at the 61st
Annual Meeting held in Portugal in June 2009 and the 62nd
Annual Meeting held in Morocco in June 2010, a one-year"consideration period" was established to last until the 63th
Annual Meeting which was held in Jersey (Channel Islands)
in July 2011. Despite these initiatives, as there was noprogress made after the consideration period at the Jersey
Annual Meeting, it was decided to continue encouraging
dialogue amongst IWC member countries.
Under this no agreement situation, at the 64th Annual
Meeting held in July 2012 in Panama, a decision was
adopted that from now on, the IWC plenary would meetbiennially (Commission Meeting in alternate years andScientific Committee meeting annually). As for the "Future of
IWC“, no progress has been made on specific tasks for theprocess, but the Commission stated its desire to encouragecontinuing dialogue and cooperation.
Japan will continue making efforts for the resumption ofcommercial whaling which was temporarily suspended by the1982 IWC moratorium.

Commercial whaling today
Although the IWC objectives provide "to ensure proper and effective conservation anddevelopment of whale stocks" and "thus make possible the orderly development of the whaling
industry", since the 1980s, many non-whaling countries suddenly joined the IWC while advocating
the anti-whaling position under the leadership of anti-whaling groups, so that by 1982, the IWC
moratorium (temporary suspension) on commercial whaling was adopted.
Facing this situation, Norway lodged an objection against the moratorium, and seeing the subparagraph provision requiring the revision of the moratorium ten years after its initial adoption not
being observed, from 1993 formally restarted commercial whaling. In 1992, together with Iceland,
Greenland and the Faeroe Islands, Norway signed the agreement establishing the North Atlantic
Marine Mammal Commission (NAMMCO), an international body independent from the IWC for theconservation and management of resources.
Iceland withdrew from the Convention after the adoption of the Revised Management Procedure(RMP) was blocked by the anti-whaling forces in 1992 but rejoined in 2003 with reservations on themoratorium. From 2006, Iceland restarted its commercial whaling.

17

Whaling in Japan
Historical and archeological evidence show that the people along the coasts of Japan have been utilizing whales for more than nine
thousand years. In the beginning, only stranded dolphins and whales may have been utilized. Afterward, around five thousand years
ago, organized dolphin hunts were conducted near the Mawaki site in Ishikawa Prefecture on the Sea of Japan. Then, two thousand
years ago, organized hunts of large whales were being conducted sporadically in western Japan. Today, whaling in Japan is present
throughout the country in the various forms of many historical and cultural aspects inherited through generations. Whaling in Japan still
has significant socio-economical and cultural importance in communities today and has a character similar in many ways to theaboriginal whaling carried out by the United States, Russia, Greenland and Caribbean peoples.
Present day whaling in Japan is classified as small-type coastal whaling and dolphin fisheries. Traditionally, the small-type coastal
whaling mainly targeted the plentiful minke whale. However, the IWC implemented a temporary suspension of whaling even forabundant species since 1988. For that reason, the small-type coastal whaling communities cannot commercially utilize this abundantresource. They now engage, under the management of the Japanese government in the capture of Braid's beaked whales, shortfinned pilot whales and false killer whales, which do not fall under the jurisdiction of the IWC. It is the long-cherished wish of thesesmall-type whaling communities to resume commercial minke whaling.
Dolphin fisheries include spear fishing and drive fishing. There are dolphin fisheries in Hokkaido and in Iwate, Wakayama and Okinawa
prefectures. The small cetaceans do not fall under the jurisdiction of the IWC and are managed under the responsibility of the coastal
country government. In Japan, dolphin resources are managed similarly to other fisheries resources, and the Government of Japansets catch quotas from the standpoint of sustainable utilization implemented through a permit system by the pertinent regional
governments.
The dolphin fisheries catch quotas are set based on individual species’ abundance estimations by the National Research Institute of
Far Seas Fisheries, Fisheries Research Agency. In this way, Japan's dolphin fisheries are appropriately carried out according to law
and ordinances.

Government of Japan’s position on the dolphin fisheries
Whales and dolphins are important fisheries resources ,and they should be utilized sustainably based on
scientific evidence. Dolphin fisheries are one of Japan's traditional fishing activities, and they are conducted
appropriately in accordance with the law.
Japan Small-Type Whaling Association website: http://homepage2.nifty.com/jstwa/

18

Whaling in the world
Whaling of IWC-managed species in the world(A: Aboriginal subsistence whaling, C: Commercial whaling and R: Research whaling)
ICELAND
Minke whale (60)
Fin whale (148)C

NORWAYC
Minke whale (468)

USA Alaska Inuit

A

Bowhead whale (71)RUSSIA Chukchi A
Gray whale (118)
Bowhead whale (2)GREENLAND (DENMARK)
Minke whale (195)
Fin whale (5)Bowhead whale (3)Humpback whale (9)A

USA Makah Nation
Gray whale (0)

R

JAPAN

JARPN II, JARPA II

A
St. VINCENT AND THE GRENADINES

Humpback whale (3)COMMERCIAL WHALINGIn reaction to the IWC moratorium on commercial whaling
Norway and Iceland presented an objection (orreservation) by virtue of Article V of the International
Convention for the Regulation of Whaling. Thus, themoratorium decision does not apply to these countries
and they are able to conduct commercial whaling.
ABORIGINAL SUBSISTENCE WHALINGThe IWC recognizes whale quotas set as necessary forthe survival of indigenous peoples.

JAPAN’S SMALL-TYPE COASTAL WHALING
Community-rooted coastal whaling has characteristics
similar to the aboriginal subsistence whaling. Japan has
repeatedly asked the IWC to establish a catch quota for
its small-type coastal whaling, but up to now, this request
has been consistantly denied.

A

IWCの非加盟国の捕獲：
WHALING BY IWC NON-MEMBER COUNTRIES
カナダ(ﾎｯｷｮｸｸｼﾞﾗ)、インドネシア(ﾏｯｺｳｸｼﾞ
CANADA (bowhead whale) andﾗ)が、IWC管理対象鯨種の捕獲を行ってINDONESIA (sperm whale)
いる。

* Figures in parentheses indicate number of whales captured in 2010 (Source: IWC)

■Blue whale captures per country■Humpback whale captures per country
16,00030,00014,00025,00012,00020,00010,00015,000

8,000
6,000

10,000

2,000

0

0
1899
1903
1907
1911
1915
1919
1923
1927
1931
1935
1939
1943
1947
1951
1955
1959
1963
1967
1971

5,000

Japan

USA

USSR

CanadaUK

Norway

1860
1866
1872
1878
1884
1890
1896
1902
1908
1914
1920
1926
1932
1938
1944
1950
1956
1962
1968

4,000

Japan

USA

USSR

CanadaUK

Australia

New Zealand19

Whale meat distribution and domestic management
After biological, ecological and genetic measurements, a sampling of whales taken by Japan's whale
research programs (minke, Antarctic minke, sei, Bryde's, fin and sperm whale) enter the domestic
distribution market as research by-products. Individual genetic information from all whales captured by
Japan's whale research programs is collected and stored in a database (DNA registry).
Further, the genetic information of individual whales whose meat may enter the domestic market either
from domestic by-catch or imports from commercial whaling countries is similarly collected and stored in
the DNA registry database.
By analyzing and registering the DNA of whale meat in the domestic market and cross-checking with the
DNA registry database, we are able to prevent illegal whale meat from entering Japan's domestic
market.

DNA sample analysis

Base sequence of whale mitochondria DNA (mtDNA). Whales from the same stock show similar
mtDNA base sequences.

20

Stranding Record
The phenomenon when live cetaceans run aground or their carcasses wash up, or when they stray intorivers away from their natural habitat is collectively known as "stranding". Collection and analysis of dataon stranded individuals not only greatly contributes to Cetacean Ecology and Biology advancement but is
helpful to better understand ongoing changes in the marine environment as cetaceans are at the top of thefood chain. The phenomenon where cetaceans strand in mass (mass stranding) has been explained byvarious theories, such as terrestrial magnetism, topography, parasite infestation, etc. as possible causes,
and as it is not yet fully understood, data collection is indispensable.

Since 1986, the Institute of Cetacean Research has been collecting data on stranding events occurring
along the coast of Japan. This database called the ICR Stranding Record includes events involving fishinggear. The Stranding Record data is reported annually to the IWC Scientific Committee. In recent years, incooperation with the National Museum of Nature and Science, more than 300 marine mammal stranding
events (including seals and other pinnipeds, dugong and sea otter stranding data) have been collectedannually. Collection of this data cannot happen without the participation of persons who happen to be near
the sea and find a stranded marine mammal or who pass along information related to any such incident
along Japan's coastline. If you have such information, whether the stranded animal is alive or not, pleasecontact the Institute of Cetacean Research.
Stranding reporting form: http://www.icrwhale.org/zasho.html

A fin whale that stranded in the Bay of Tokyo

Scientists conduct biological survey on a gray whale stranded in 2007 in Tomakomai

21

Food culture
The Japanese have lived with whales since ancient times
The long history of whaling in Japan, from prehistoric times to the present, gave rise to the worship of whales and bore fruit in theculture witnessed today in whaling songs, dances and the various traditional handicrafts that have been handed down fromgeneration to generation. They are historical evidence that the Japanese people have lived in close association with whales. Now
is the time to acknowledge the importance of our whaling tradition and food culture. Japanese are and should be proud of thisheritage.

Primitive and Ancient whale hunts

Cetacean remains found at archeological sites
Large quantities of dolphin bones from about five thousand years ago (Early
to Middle Jomon period) were found at the Mawaki site in Ishikawa prefecture.
In Kyushu, many earthenware pieces made by using whale vertebral plates
as rotating tables (called "pottery with whale-vertebra-imprinted bottoms"
since the bottoms retain the depressions made from the deep dents of thejoints between the corpus vertebrae and the vertebral plates) have been
excavated from sites dating back about a thousand years (Middle to Late
Jomon period). A whale scene was depicted on the surface of a jar used for
burials, dating back some two thousand years (Late Middle Yayoi period) and
unearthed at the Haranotsuji site on Iki Island (Nagasaki prefecture). Whales
are mentioned in "Kojiki", the oldest existing historical record of Japan
compiled in 712. As can be seen, Japanese people have had a close
association with cetaceans from ancient times.
。

Whaling in Medieval and Premodern times
Progress and spread of whaling techniques"Hand harpoon whaling" was developed around the twelfth century. Fishermen rowed out to sea and speared
whales with harpoons. In 1606 (beginning of Edo Period), Kujira-gumi (a premodern whaling company), thefirst organization specializing in whaling in Japan was established in Taiji, Wakayama prefecture, marking the
beginning of organized whaling. Further, in 1675, "hand harpoon whaling with nets" was developed. This
whaling method spread to Tosa (Kochi prefecture), Nagasaki and other areas, and led to a sudden increasein the capture of whales.

。
Popularizationof whale meat as foodWith the introduction of Buddhism into Japan, the eating of animal meat was prohibited, which led to a cultureof eating fish. Regarded as a kind of fish, whales had been consumed from old times as a valuable source ofprotein. It was, however, not until the Edo period that whales became popularized as food, when quantities ofwhale meat were put on the market and became available to the common people. The book "Geiniku Chomigata", a collection of whale recipes for some seventy parts of whales and other special cookbooks were also
published. It was also during the Edo period that tombs and monuments for whales were erected in various
parts of Japan in gratitude and as memorials for the dead whales' spirits. Performing arts, such as whalesongs and dances, also flourished at the time.

Modern and Present day whaling
From the beginning of modern whaling to the present
Modern whaling in Japan began with the introduction of the Norwegian whaling method in 1899, which employed harpoon guns (a line was attached to theharpoon, which was shot from the gun) installed on steamships. The Japanese whaling industry had declined for a time, owing to the Western whaling shipsthat flocked to and overexploited Japanese waters. Coastal whaling, however, recovered with the introduction of the new method, and in 1934 Japanese
fleets set sail to the Antarctic Ocean. At that time, American and European countries were engaged in large-scale pelagic operations, which resulted in thesevere depletion of Antarctic whale resources. Management controls were introduced that gradually reduced quotas, and the Western nations withdrew fromthe industry since whaling was no longer profitable. Japan remained to the last, but was forced to cease when the IWC placed a moratorium on commercial
whaling. The only remaining whaling today is the research whaling based on the International Convention for the Regulation of Whaling, small-type coastal
whaling and the dolphin fisheries which have been conducted in various parts of Japan since old times.

22

Whale cultural perception
Whales have been utilized uninterruptedly by the Japanese people
since long ago, resulting in the worship of whales and many othercultural expressions such as whaling songs, dances and traditional
handicrafts handed down through generations, and it is very much alive
today. Whale tombs and memorial monuments for the souls of theseanimals can be found throughout the land of Japan. From north tosouth in the country, the meat of whales has been used as food in
multifarious ways. In the Hakodate region south of Hokkaido, whalesoup (a earthy broth made with salted whale meat, edible wild plants
and vegetables) is one of the traditional foods enjoyed during the New
Year festivities. In Niigata prefecture, whale soup is consumed typicallyin full summer to help stand the heat. In the Kansai region centered in
Osaka, whale skin or "koro" is an indispensable ingredient for the oden
hotch-potch stew and the traditional "hari-hari nabe" whale meat pot isanother famous dish from that region. Traditional recipes such as theseare still alive while many new forms of original whale cuisine are being
created today.

In Muslim culture whale liver is considered the first food in heaven
It is proven in the Hadeeth (the saying of the Prophet Mohammad) that the first food offered to welcome the people to
Paradise upon entering will be “the caudate lobe of whale liver”.
That is mentioned in the Hadeeth of Thawbaan (one of the Companions of the Prophet Mohammad), the freed slave of the
Messenger of Allah (blessings and peace of Allah be upon him), according to which one of the Jewish rabbis came to ask
the Prophet Mohammad (blessings and peace of Allah be upon him) about some matters to test him. In the Hadeeth it says:
The Jewish man said: What will be presented to them first when they enter Paradise?
The Prophet Mohammad said: “Caudate lobe of whale liver.
Saheeh Muslim, Page 252, Chapter 3/8, Hadeeth 315.

23

Whaling history outline

24

North Atlantic Marine Mammal Commission (NAMMCO)
NorwayIceland
Greenland

http://fsf.fra.affrc.go.jp

Japan Fisheries Agency
with: The Institute of Cetacean Research