AndreaBozzo/ceres-open-data-index huggingface dataset:
AFSC/ABL: Karluk sockeye salmon scale time series

To better understand how density-dependent growth of ocean-dwelling Pacific salmon varied with climate and population dynamics, we examined the marine growth of sockeye salmon in relation to an index of sockeye salmon abundances among climate regimes, population abundances, and body sizes under varied life history stages, from 1925 to 1998 using ordinary least squares and multivariate adaptive regression spline threshold models. The annual marine growth and body size during the juvenile, immature, and maturing life stages were estimated from increments on the scales of adult age 2.2 sockeye salmon that returned to spawn at Karluk River and Lake on Kodiak Island, Alaska. Intra-specific density-dependent growth was inferred from inverse relationships between growth and sockeye salmon abundance based on commercial harvest. Density-dependent growth occurred in all marine life stages, during the cool regime, at lower abundance levels, and at smaller body sizes at the start of the juvenile life stage. The finding that density-dependence occurred during the cool regime and at low population abundances suggests that a shift to a cool regime or extreme warm regime at higher population abundances could further reduce the marine growth of salmon and increase competition for resources.
Alaska salmon production fluctuates with climate and ocean conditions in the North Pacific Ocean. In this study, we evaluated the hypothesis that faster marine growth was related to higher survival as a consequence of more favorable ocean conditions for growth during the 1927-46 and 1977-2000 warm regimes, and slower growth was related to lower survival as a consequence of less favorable climatic and oceanic conditions for growth during the 1947-76 cool regime. We measured and compared the annual growth on scales collected from age 2.2 sockeye salmon that returned to Karluk Lake on Kodiak Island, Alaska from 1927 to 2000 to regime periods, climatic and oceanic indices, and survival. First and second marine-year scale growth fluctuated with the cool regime and recent warm regime. Survival estimated as the ratio of offspring to parental escapement was lower during the 1925-46 warm regime and 1947-76 cool regime. Survival was positively related to first and second marine year scale growth, eastern North Pacific atmospheric circulation, and reduced winter and spring coastal downwelling in the Gulf of Alaska. Winter and spring climatic and oceanic conditions influences on first and second year marine growth of Karluk Lake sockeye are a possible mechanisms linking Karluk Lake sockeye salmon survival to climate over the past half century.

Tags: ak, alaska, alaska fisheries science center, auke bay laboratories, doc/noaa/nmfs/afsc, growth, karluk lake, kodiak island, national marine fisheries service, noaa, oncorhynchus nerka, scale, sockeye salmon, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Obsolete - AFSC/RACE/EcoFOCI: 2011 Gulf of Alaska fall juvenile fish Cruise DY11-06/7DY11

The cruise began when the ship departed Dutch Harbor on October 1, 2011 at 1500 ADT. Sampling commenced at collection site 1E, which corresponds to Station 1. Station number reflects the order of site occupation (see Cruise Report Table 1, Figures 1 and 2). All but one of the Semidi grid sites were successfully occupied by 10 October. Site 2B was not occupied successfully because the midwater trawl was torn by bottom contact and we chose to forgo sampling there in favor of running to the next station while the deck crew removed the tangled trawl from the net reel. Unfortunately, removing the net took about 12 hrs because the net became tangled on the reel. Only 17 of the 32 Kodiak grid sites were successfully occupied (Table 1). This was largely due to an overly ambitious cruise plan. Overall, samples were successfully collected to address cruise objectives (no. sites, gear type): time series (n=26 sites, midwater Stauffer trawl), resource selection models (RSM, n=35 sites, 3-m plumb staff beam trawl), potential prey (n=9 sites, 60-cm bongo, epibenthic sled, Van Veen grab infauna), and juvenile fish production (relevant data were collected at all sites). At nine sites, including Station 39, the sea floor was too rough to sample on bottom so only a midwater sample was collected. This additional sampling was to supplement collections made for the GOA-Integrated Ecosystem Research Program (RHeintz, see above Samples Collected) and for a study of otolith element composition. Sampling concluded after three unsuccessful attempts to obtain a sediment composition sample at Site 27G (Station 56) at approximately 03:25 on 14 October 2011.

Tags: 20cm bongo, 60cm bongo, alaska fisheries science center, biological data, doc/noaa/nmfs/afsc, fish, fish eggs, fish juveniles, fish larvae, gulf of alaska, ichthyoplankton, juvenile flatfishes, juvenile walleye pollock, kodiak islands, national marine fisheries service, noaa, northeast pacific ocean, obsolete data set, oceanographic data, plankton, recruitment processes program, seabird ctd, seabird seacat ctd, semidi islands, shumagin islands, u.s. department of commerce, zooplankton
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2017 acoustic trawl survey Gulf of Alaska DY1701

Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation Engineering (RACE) Division conducted acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during late winter  and early spring 2017 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus) within several of their main spawning grounds.  These pre-spawning pollock surveys covered the Shumagin Islands, Sanak Trough, and Morzhovoi and Pavlof Bays (DY2017-01; 8-14 February).

Tags: acoustics, afsc/race/mace: pollock acoustic/trawl survey spawning annual shumagins, alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, pollock, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Delta Submersible Dive Video Archive in Alaska, 1988-2009

Seafloor habitat and fish data collected from videos obtained from Delta submarine dives conducted by Auke Bay Laboratories.

Tags: alaska fisheries science center, auke bay laboratories, coral, doc/noaa/nmfs/afsc, habitat, national marine fisheries service, noaa, rockfish, seafloor, sponges, submersible, u.s. department of commerce, video
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Genetic analysis of juvenile chum salmon from the Chukchi Sea and Bering Strait

The Arctic region has experienced warming in recent years, resulting in decreased summer sea ice cover and increased sea surface temperatures.  In 2007, the U.S. BASIS survey extended surface trawling into the Chukchi Sea; juvenile chum salmon were collected at most stations.  Genetic methods were applied to identify the origin of the juvenile chum salmon collected in the Chukchi Sea and Bering Strait.  Most of the juvenile chum salmon caught in the Bering Strait were from northern Russian populations and the majority collected in the Chukchi Sea were from northwestern Alaska populations.

Tags: alaska, alaska fisheries science center, auke bay laboratories, bering sea, chukchi sea, doc/noaa/nmfs/afsc, genetic stock identification, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Obsolete - AFSC/RACE/EcoFOCI: Chlorophyll: variability in spring chlorophyll concentrations and zooplankotn on the eastern Bering Sea shelf - cruise Healy 07-01

These data were collected under NSF Grant # ARC-0722448 ("BEST: Impacts of Sea-ice on the Hydrographic Structure, Nutrients, and Mesozooplankton over the Eastern Bering Sea Shelf") to Dr. G.L. Hunt, Jr., University of Washington.
  The eastern Bering Sea shelf supports productive marine ecosystems with extraordinarily valuable fisheries and subsistence resources, but sub-arctic seas are predicted to be one of the regions most sensitive to future warming of the world oceans.  Some of the most direct effects of changing climate will be on the extent, duration and timing of sea-ice over the Bering Sea shelf. Sea-ice controls the timing of the spring phytoplankton bloom, the fate of primary production, water column temperature and salinity, and provides a haul out and molting platform for marine mammals. Thus, the most urgent priority of the Bering Sea Ecosystem Study (BEST) is to examine the role of changing sea-ice conditions on the chemical, physical, and biological characteristics of the ecosystem. The first BEST cruise was scheduled on the USCG Healy in April-May 2007, however, physical observations, water column nutrient chemistry, and zooplankton distribution/abundance were not among the ecosystem components funded in the first call for proposals. Project ARC-0722448 funded by NSF after the first call for BEST proposals filled this gap in chlorophyll collections until the remainder of BEST projects could be assembled in 2008.

Tags: alaska, alaska fisheries science center, arctic, bristol bay, chlorophyll, doc/noaa/nmfs/afsc, eastern bering sea shelf, national marine fisheries service, noaa, non-federal funding, obsolete data set, phaeopigments, phytoplankton, recruitment processes program, spring, st. lawrence island, u.s. department of commerce, upper water column
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2018 acoustic trawl survey Gulf of Alaska DY1803

Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center"s (AFSC) Resource Assessment and Conservation Engineering (RACE) Division conducted an acoustic-trawl (AT) stock assessment survey of

Tags: acoustics, afsc/race/mace: pollock acoustic/trawl survey spawning annual shelikof, alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, pollock, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/FBEP/Ryer: Depth distribution, habitat associations, and differential growth of newly settled southern Tanner crab (Chionoecetes bairdi) in embayments around Kodiak Island, Alaska

This dataset is from field surveys that examined depth distribution, habitat association, and growth of newly settled Tanner crab at 4 sites around the eastern end of Kodiak Island, Alaska.

Tags: alaska, alaska fisheries science center, depth distribution, doc/noaa/nmfs/afsc, fisheries behavioral ecology program, growth, habitat association, kodiak island, national marine fisheries service, noaa, seafloor, tanner crab, u.s. department of commerce, worm tubes
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2013 acoustic trawl survey Gulf of Alaska DY1307

Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center (AFSC) Resource Assessment and Conservation Engineering (RACE) Division conducted an acoustic-trawl (AT) stock assessment survey of portions of the Gulf of Alaska (GOA) shelf to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus) during summer of 2013. The survey (cruise DY2013-07) was conducted between 8 June and 9 August on the Gulf of Alaska shelf from 50-1,000 m depth extending from the Islands of Four Mountains to Yakutat Bay. The area referred to as the shelf includes transects that are roughly perpendicular to the continental shelf depth contours and extend in a general north-south direction from inshore bottom depths of =50 m to upper continental slope bottom depths of > 1,000 m. Smaller surveys were conducted in several bays and around islands including: Sanak Trough, Morzhovoi Bay, Pavlof Bay, the Shumagin Islands area (including Renshaw Point, Unga Strait, and West Nagai Strait), Mitrofania Island, Nakchamik Island, Shelikof Strait, Alitak Bay,Barnabas Trough, Chiniak Trough, Marmot Bay, Prince William Sound, Kayak Island Trough, and Yakutat Trough. All activities were conducted aboard the NOAA ship Oscar Dyson, a 64-m stern trawler equipped for fisheries and oceanographic research. The survey followed established AT survey methods as specified in NOAA protocols for fisheries acoustics surveys and related sampling.

Tags: afsc/race/mace: pollock acoustic/trawl survey biennial gulf of alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: National Marine Fisheries Service - Alaska Sablefish Tag Database

This data set captures the tag release and recovery information for sablefish from the early 1970s until present.  It also contains tag release and recovery data for several other species (shortspine thornyheads, Greeland turbot, Pacific sleeper sharks, spiny dogfish, and lingcod) which have been tagged by NMFS in AK since the late 1990s.

Tags: ak, alaska, alaska fisheries science center, aleutian islands, auke bay laboratories, bering sea, doc/noaa/nmfs/afsc, gulf of alaska, national marine fisheries service, noaa, sablefish, tagged fish, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/SAP/Swiney: Effects of ocean acidification and increased temperatures on juvenile red king crab

Multiple stressor studies are needed to better understand the effects of oceanic changes on marine organisms.  To determine the effects of near-future ocean acidification and warming temperature on juvenile red king crab (Paralithodes camtschaticus) survival, growth, and morphology, we conducted a long-term (184 d) fully crossed experiment with two pHs and three temperatures: ambient pH (~7.99), pH 7.8, ambient temperature, ambient +2 degree C, and ambient +4 degree C, for a total of 6 treatments.

Tags: alaska fisheries science center, doc/noaa/nmfs/afsc, juvenile, morphology, national marine fisheries service, noaa, ocean acidification, ocean warming, shellfish assessment program, survival, u.s. department of commerce, young-of-the-year
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Obsolete - AFSC/RACE/EcoFOCI: Chlorophyll, ichthyoplankton and zooplankton data for 3MF04 and 8MF04

These data are part of a ocean observation study by Stabeno, Napp, and Whitledge sponsored, in part, by the North Pacific Research Board  (Project 410; http://doc.nprb.org).  The grant was titled "Long-term observations on the Bering Sea shelf (2004-2005): biophysical moorings at sites 2 and 4 as sentinels for ecosystem change."  Moorings were maintained on the southeastern Bering Sea shelf at M2
(56.9B0N, 164.1B0W), and at M4 (57.9B0N, 168.9B0W). Shipboard
measurements of temperature, salinity, nutrients, chlorophyll, fluorescence and
zooplankton were collected around the moorings on two cruises (3MF04 - April 2004 and 8MF04 - September 2004) to ground truth in situ sensors on the moorings. This long-term monitoring supported major findings: (1) The timing of the spring phytoplankton bloom is determined by the presence of ice, with an early bloom occurring if ice is present after mid-March and later bloom occurring if there
is no sea-ice after mid-March; (2) During the last decade, the southeastern Bering Sea
shelf has undergone a marked warming (~3B0C) that is closely associated with a marked
decrease of sea ice over the southeastern shelf; (3) Nutrients supply and summer salinity
over the shelf has not significantly changed during the last three decades; (4) There is an
indication that cold water zooplankton species (e.g Calanus marshallae ) are occurring
in reduced abundance in association with the warming. While the warming over the
southeastern shelf is primarily related to the reduction of ice extent, a combination of
other mechanisms are important: the presence over the eastern shelf of a relatively mild
air mass during winter since 2000; a shorter ice season caused by a later fall transition
and/or earlier spring transition; increased flow through Unimak Pass during winter
introducing warm Gulf of Alaska water onto the shelf; and a thermal feedback
mechanism whereby warmer, summer ocean temperatures delay the southward advection
of sea ice during winter.

Tags: alaska, alaska fisheries science center, arctic, bristol bay, chlorophyll, doc/noaa/nmfs/afsc, eastern bering sea shelf, national marine fisheries service, noaa, non-federal funding, obsolete data set, phaeopigments, phytoplankton, recruitment processes program, spring, st. lawrence island, summer, u.s. department of commerce, upper water column
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Young of the year sablefish (Anoplopoma fimbria) voucher otoliths 1995-2004.

We studied young of the year sablefish Anoplopoma fimbria to collect basic life history information on their abundance, growth, and diet and to determine whether forecasting year class abundance based on young of the year surveys was practical. Surface gillnet surveys were conducted annually from 1995 to 2004 along the seaward edge of the continental shelf of Alaska. Otoliths were extracted from a random subset of juvenile sablefish sampled by gillnet. This data set includes voucher otoliths from these studies.

Tags: alaska fisheries science center, aleutian islands, auke bay laboratories, bering sea, doc/noaa/nmfs/afsc, gulf of alaska, national marine fisheries service, noaa, otoliths, u.s. department of commerce, voucher otoliths, young of the year sablefish, yoy sablefish
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/ABL: Origins of sockeye and chum salmon seized from the F/V Ying Fa

Samples of chum (Oncorhynchus keta) and sockeye (O. nerka) salmon seized from the stateless fishing vessel Ying Fa were analyzed to determine their region of origin using genetic stock identification (GSI), otolith marks, parasite analysis, and scale data. Based on GSI, the chum salmon samples originated in Russia, 86%; Japan, 2%; western Alaska, 2%; Alaska Peninsula and Kodiak, 8%; and British Columbia, 2%. Origins of the sockeye salmon sample were not so clear because there was some disagreement between the parasite data and the GSI and scale data.  Results of parasite analysis suggested the sample was nearly all of Alaskan origin, with at least 15% coming from Bristol Bay. The GSI analysis indicated that 30% of the sockeye salmon originated in Russia and 70% in North America. The scale analysis showed that 97% of the sockeye salmon sample were ocean age 3, whereas the return to Bristol Bay in 1999 was approximately 70% ocean age 2 fish.

Tags: alaska, alaska fisheries science center, auke bay laboratories, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/GAP/Conrath: Rockfish habitat and productivity (Coral)

The importance of high relief structure containing biotic habitat to rockfish and other species remains largely unknown. This data set was created to examine the importance of this habitat for Pacific ocean perch, northern rockfish, and dusky rockfish. These data were derived from four research cruises that occurred between May 2012 and December 2014. During the cruises, video data was recorded of habitat associations, plankton samples were collected, temperature profiles were recorded, and several types of biological samples were taken from trawl captured rockfish. These data will be recorded in several tables in an access database and video files will also be available.

Tags: age and growth, alaska fisheries science center, central gulf of alaska, diet, doc/noaa/nmfs/afsc, dusky rockfish, energetics, groundfish assessment program, habitat, national marine fisheries service, noaa, northern rockfish, pacific ocean perch, plankton, reproduction, sebastes alutus, sebastes polyspinis, sebastes variabilis, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
AFSC/RACE/MACE: Results of 2017 acoustic trawl survey Gulf of Alaska DY1706

Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation Engineering (RACE) Division conducted an acoustic-trawl (AT) survey of the Gulf of Alaska (GOA) shelf to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus) in summer 2017. Previous surveys of the GOA have also been conducted by the MACE program during the summers of 2003, 2005, 2011, 2013, and 2015. The 2017 survey covered the shelf from the Islands of Four Mountains to Yakutat Trough including many bays and troughs. Surface water temperatures across the GOA shelf averaged 11.6Â° C, overall, approximately 0.6Â° C cooler than in 2015 (mean 12.2Â° C) and 1.0Â° C warmer than in 2013 (mean 10.6Â° C), which were the only other surveys with comparable coverage. Large aggregations of age-0 pollock were observed throughout the survey but especially in the Shumagin Islands and Shelikof Strait areas. The estimated amounts of age-1+ pollock for the entire surveyed area were 2.64 billion fish weighing 1,341,973 metric tons (t). The majority of the pollock biomass was observed on the continental shelf (84%), Shelikof Strait (5%), near Mitrofania Island (3%), and east of Kodiak Island in Chiniak (2%) and Barnabas Troughs (4%). The majority (86%) of the biomass in the survey area consisted of age-5 fish from the 2012 year class. Compared to previous summer GOA surveys, fish weight at length was similar, but length at age was slightly smaller. Backscatter was attributed to species other than pollock when trawl verification, differentiation based on backscatter frequency response, or other methods allowed. Abundance and biomass estimates were calculated for Pacific ocean perch (Sebastes alutus; 305.9 million fish weighing 172,388 t), and backscatter distribution and abundance relative to previous surveys was estimated for euphausiids (primarily consisting of Thysanoessa inermis, but also including T. spinifera, T. raschii, and Euphausia pacifica).

Tags: acoustics, afsc/race/mace: pollock acoustic/trawl survey biennial gulf of alaska, alaska, alaska fisheries science center, doc/noaa/nmfs/afsc, national marine fisheries service, noaa, pollock, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce