AndreaBozzo/ceres-open-data-index huggingface dataset:
Surveys of Octocoral communities, benthic cover and environmental factors on coral reefs of Milne Bay, Papua New Guinea

All surveys were carried out by the principal researcher using Rapid Ecological Assessment. The dataset comprises 41 sites.Each site was surveyed with up to 5 transects (usually 200-300m long, 1-3m wide for 10-15 minutes) at pre-defined depths (1-3m, 3-8m, 8-13m, 13-18m and reef flat).Species recorded: octocorals (soft corals, gorgonians, sea fans, sea whips, sea pens, leather corals, arborescent octocorals, blue coral, stoloniferans), black and wire coral. Note that taxa were recorded mostly at generic level.Site variables comprise: visibility (a modified Secchi technique - estimating maximum visible distance of a bright object in metres); depth; exposure (very exposed, protected, exposed, moderate); orientation (E, NNE, etc.); formation (Point, Face, Bay/Inlet, Channel); slope angle (assigned to 5° categories); flowspeed (estimated by timing the traveling speed of suspended particles along a ruler at cm/second); wave exposure (0=sheltered to 4=very exposed); sediment deposit (0=none, 1=thin layer, 2=considerable, 3=thick layer); rubble % cover; sand % cover.Visual estimates of overall abundance (percent cover) were estimated in 2.5% increments from 1-10%, 5% increments from 10-30% and 10% increments over 30%). Categories are: hard corals, soft corals, dead coral, turf algae, coralline algae, macroalgae (conspicuous macroalgae - Halimeda and Sargassum - were recorded separately), and total percent cover including sand and silt.Octocoral genera (in some cases species) were given a taxon abundance ranking (0=absent, 1=rare, 2=uncommon, 3=common, 4=abundant, 5=dominant).Zooxanthellate and azooxanthellate richness was calculated based on the numbers of octocoral taxa with (or without) zooxanthellae.Site locations: Alotau Clubhouse, Barbara Reef, Double Tower, Lauwadi, Manta Station, Michelles, Observation Points (off Pier, off Village, off Volcano Lake), Pinnacle, Sulloviens patch, Wahoo Reef.
 To survey the cover of the main benthic groups, richness and abundance of octocorals in the reefs of Papua New Guinea and related spatial and water quality gradients.Because roughly half Octocorals have photosynthetic symbionts they are ideal to assess how biodiversity is related to spatial and environmental factors, and photosynthetic symbionts and energy supply.To examine principal drivers of biodiversity, community composition, and ranges ofcoral reef benthos.
 Comparable data are held for the Great Barrier Reef, Hong Kong, Palau, Torres Strait, and Rowley Shoals (WA).A subset of the data has been provided to the Ocean Biogeographic Information System (OBIS, http://www.iobis.org/OBISWEB/DisplayMetaData.jsp?content=meta/1461.html).

Organization: Australian Ocean Data Network
Sponge productivity and abundance on the reef flat at Flinders Reef, Coral Sea

Sponge population surveys were conducted in mid-winter (July 1983) at 8 sites along a 1.3 km transect across the reef flat, north of the weather station on Flinders Cay. All sponges within duplicate 2 x 2 m quadrats were collected, identified and weighed (wet weight). Respirometry was used to measure rates of oxygen exchange on 20 to 55 g (wet weight) samples of sponge tissue. Rates were measured for 5 specimens of each of Carteriospongia "folpap", Carteriospongia "cups" and Phyllospongia "fingers" and 2 specimens of Thorectidae "firmred". Integrated daily productivity was estimated by using light profiles, measured at the time and interpreted using published equations. Summer productivity rates were estimated using the July production and respiration rates and summer light profiles, with no provision for changes in photoadaptation or temperature. Chlorophyll a content (µg/g wet weight) and mean thickness (mm) of the sponge tissue used for respirometry were also measured.
 This research was undertaken to determine the contribution of sponges to reef flat productivity by:1. estimating the size and extent of sponge populations on the reef flat2. measuring photosynthetic production and respiration of specimens of the most abundant sponge species present
 Specimens of sponges were provided to Professor PR Bergquist of the Australian Museum with the following registration numbers:Thorectidae "firmred": Z4970Carteriospongia "folpap": Z4977Phyllospongia "fingers": Z4978Carteriospongia "cups": Z4974

Organization: Australian Ocean Data Network
Genetic structure of fissiparous populations of Holothuria atra on the Great Barrier Reef

Population genetic structure was studied in two nearshore (Fantome and Great Palm Islands) and two midshelf (Rib and 18-026) reef populations of Holothuria atra on the Great Barrier Reef. Two stations approximately 500 m apart were sampled on each reef (only 150 m apart at Fantome Island due to the limited area in which the species occurs). At each station, 30-40 adult individuals (generally &gt; 50 g) were sampled within a radius of 30m from a marker buoy, in early November 1996. The sampling time in November was chosen to increase the likelihood of finding mature gonads in the sampled animals. Female gonads were dark red, male gonads were orange; several small gonads were examined microscopically to determine whether they were ovaries or testes. Several inidivduals had gonads which were either immature or not detectable, these were exluded from the male/female analyses but included in other analyses.Genetic variation at 5 polymorphic loci was examined using allozyme electrophoresis. The polymorphic enzymes examined were: GPI, HK, LP, PGD and PGM. Measures describing the genetic variables for females, males and unsexed individuals were: sample size per locus; number of alleles per locus; percentage of loci that were polymorphic; heterozygosity (observed=Ho, expected=He); genotypic diversity (observed=Go, expected=Ge, and the ratio of Go to Ge); sample size (Ni); number of genotypes ((observed=Ngo, expected=Nge).Calculation were made on: the number of sexually produced individuals (N); and the ratios of Ngo to Nge; Ni to Ngo; N to Ni.Average weight (g), for females, males and unsexed individuals were recorded; and sex ratios for all sexed individuals and estimated annual fission rates calculated.F-statistics were used to partition genetic variation into that occurring within populations (FIS) and that occurring between populations (FST) for males, females and total individuals for both original and clonal genotype frequencies.A dendrogram was created to show genetic relationships between the populations of the 8 sites using UPGMA cluster algorithm and Nei's unbiased genetic distance.
 To describe the genetic structures of Holothuria atra using allozyme electrophoresis to quantify the extent of asexual reproduction and to extimate the importance of sexual recruitment in this fissiparous holothurian.

Organization: Australian Ocean Data Network
IMOS - National Mooring Network - Queensland and Northern Australia One Tree East (GBROTE) Mooring

The QLD One Tree East Mooring (IMOS Platform Code: GBROTE) is one of three moorings near Heron Island, and one of five moorings offshore from Gladstone in Queensland, Australia at Latitude: -23.483, Longitude: 152.172 (approximate, adjustments with each deployment).
The mooring’s sensors are adjusted and potentially change with each deployment, below is an example from 2009:
- SBE19Plus CTD
- RDI Workhorse ADCP
- 3x SBE39 temperature recorders
- 2x WetLabs Water Quality Meters
The One Tree East mooring is sometimes referred to as "Heron Island East".

Tags: Buoys | Moored Buoys, CTD (Conductivity-Temperature-Depth Profilers), Countries | Australia, Current Meters/Profilers | Acoustic Doppler Current Profiler (ADCP), Fluorometers, IMOS Platform | GBROTE | One Tree East Mooring, Marine Features (Australia) | Great Barrier Reef, QLD, Oceans | Bathymetry | Water Depth, Oceans | Ocean Chemistry | Chlorophyll, Oceans | Ocean Chemistry | Oxygen, Oceans | Ocean Circulation | Ocean Currents, Oceans | Ocean Optics | Fluorescence, Oceans | Ocean Optics | Turbidity, Oceans | Ocean Temperature | Water Temperature, Oceans | Salinity/density | Conductivity, Regional Seas | Coral Sea, Shelf Mooring, Slope Mooring, States, Territories (Australia) | Queensland, moles_of_oxygen_per_unit_mass_in_sea_water, optical_backscattering_coefficient, sea_water_pressure, sea_water_salinity, sea_water_speed, sea_water_temperature
Organization: Australian Ocean Data Network
WAMSI 2 - Kimberley Node - Project 2.2.1 Bio-physical Oceanography of the Kimberley

WAMSI Kimberley Research ProjectsThe Western Australian Government has declared an intention to establish a number of MPAs in the Kimberley region to preserve and manage its unique biodiversity and conservation values. The WAMSI science plan for physical and biological oceanography in the Kimberley is focused on the southern designated MPA area (Camden Sound) to support physical and biogeochemical process model development. This metadata record describes observational data collected in support of the observational requirements for WAMSI KMRP Projects:2.2.1 - Physical oceanographic dynamics in the Kimberley2.2.2 -Pathways to Production : Biogeochemical Processes in the Kimberley Region2.2.6 - Terrestrial-Ocean Linkages: the role of rivers and estuaries in sustaining marine  productivity in the Kimberley.Primary data sources are:Moored ADCPs Moored Temperature salinity loggersUnderway ThermosalinographCTD casts
 The purpose of the data are to assist in quantifying key physical and biological oceanographic processes in nearshore waters of the coastal Kimberley under wet and dry season conditions to: 1. better define seasonal ranges in properties and rates in Collier Bay as a basis for identifying potential climate-related changes, 2. better define marine productivity and seasonal forcing processes3. acquire oceanographic and biogeochemical information necessary to develop system models.
 Detailed descriptions of science plans for each of the above listed projects is available from the project specific WAMSI II Science Project Plans.

Organization: Australian Ocean Data Network
Biodiversity in Trawl Fisheries

There are good descriptions of biodiversity and fishing impacts in tropical trawl fisheries in Australia. Further work is required to adapt this generic understanding of biodiversity and trawl impacts to the needs of long-term ESD management.
For this purpose, cost-effective monitoring systems are required for specific fisheries in WA. The systems take into account their spatial impact relative to habitat types and related species assemblages captured in the trawls.
This information will enable the Department of Fisheries and industry to effectively respond to information required by the Commonwealth Department of Environment and Heritage in order to continue to provide quality and highly valued seafood to both export and local markets. It will also provide a basis to answer queries from conservation and community groups.
The project will:
* provide baseline data on biodiversity on-and-off trawl habitats in Shark Bay and Exmouth Gulf to allow an assessment of the effects of trawling on bycatch;
* develop a better understanding of the faunal composition and habitat preference of bycatch species in both trawled and untrawled areas to determine the most appropriate level of risk to bycatch species. This may allow management strategies to be developed to ameliorate any detrimental impacts on those species that are found to be highly vulnerable to trawl impacts;
* set up reference sites for long-term monitoring of the environmental impact of trawling; and
* examine the seasonal variation in biodiversity and efficiency in capture of bycatch species in Shark Bay to provide a rigorous scientific basis for determining reference sites for other trawl fisheries.
* understand seasonal variability to allow the selection of appropriate timing of long-term monitoring; and
* conduct experiments to ensure that bycatch catch per unit effort is related to actual abundance.

Time : Funded until September 2005.

Organization: Australian Ocean Data Network
Abundance estimates of sea urchins and a suite of predators over multiple spatial scales.

Underwater visual census surveys were conducted at 15 sites in eastern Tasmania to quantify the abundance of the sea urchin Heliocidaris erythrogramma and several putative predators.

Tags: 25 247001, Abundance, Biosphere | Ecological Dynamics | Predation, Heliocidaris erythrogramma, Oceans | Marine Biology | Marine Invertebrates, Test diameter
Organization: Australian Ocean Data Network
The physical oceanography of Bowling Green Bay, north Queensland: Station BG06

An Aanderaa RCM4S rotor current meter was deployed on a frame at Station BG06. This was one of three current meters placed to investigate the complex coastal jet and one of two current meters placed to investigate the strong tidal currents in the southeast corner of the bay.Deployment Details:Instrument: RCM4S #6332Instrument depth: 4mSampling interval: 30 minutesDate deployed: 23/10/1984Date recovered: 18/02/1985
 This study was initiated to:1. gain an understanding of the circulation of water in Bowling Green Bay2. complement concurrent studies by AIMS scientists researching the ecology, nutrient regime and trophodynamics of the coastal boundary of the Great Barrier Reef lagoon.

Organization: Australian Ocean Data Network
Coastalwatch: Coastal Condition Monitoring System - Avalon

Since its launch in 1998, Coastalwatch has become Australia's most popular water sports website, and is consistently ranked in the top eight sporting websites. The site displays live vision from over 90 coastal locations around Australia and overseas. It also provides daily surf reports, swell forecasting, weather information and news; as well as video, photographic and editorial content. 
Coastalwatch has also developed a Coastal Conditions Monitoring System, which utilises the camera network to make a significant contribution to safer coastal use and more efficient and cost effective coastal management.  To this end, Coastalwatch has partnered with Surf Life Saving Australia and Surfing Australia; and supports Volunteer Rescue organisations, community groups, and charities such as SurfAid International and the Surfrider Foundation Australia.  
Coastalwatch is committed to bringing the coast to all Australians and overseas visitors, and becoming the premier reference site for all coastal user groups. With this in mind, Coastalwatch is dedicated to assisting with sound coastal zone research and management through the use of all its resources.

Tags: Oceans | Coastal Processes | Beaches, Oceans | Coastal Processes | Erosion, Oceans | Coastal Processes | Intertidal Zone, Oceans | Coastal Processes | Longshore Currents, Oceans | Coastal Processes | Shoreline Displacement, Oceans | Coastal Processes | Shorelines, Oceans | Coastal Processes | Tidal Height, Oceans | Ocean Waves | Wave Frequency, Oceans | Ocean Waves | Wave Height
Organization: Australian Ocean Data Network
Development of shy/bold behaviour in southern dumpling squid (Euprymna tasmanica)

Behavioural syndromes are important in the context of understanding the evolution of behaviour. This study examines the lifetime development of shy/bold behaviour of dumpling squid (Euprymna tasmanica). The first component examined correlations of shy/bold behaviour across two test contexts - a threat and a feeding test, measured 5 times during the lifetime of the squid. The second component examined developmental plasticity in shy/bold phenotypes with age and sexual maturity.

Tags: 23 609001, Biosphere | Zoology | Mollusks, Euprymna tasmanica, animal personality, behavioural syndromes, developmental plasticity, shy/bold
Organization: Australian Ocean Data Network
IMOS - Ocean Radar - Guilderton HF ocean radar station (Rottnest Shelf, Western Australia, Australia)

The Guilderton (GUI) HF ocean radar site (31.342 S, 115.489 E) is one of two HF ocean radars covering Rottnest Shelf and Perth Canyon off the coast north of Perth.  The other HF ocean radar station is at Fremantle.  The HF ocean radar coverage is from the coast to beyond the edge of the continental shelf. 
The GUI HF ocean radar is a WERA phased array system with a 16-element receive array.  This radar operates at a frequency of 8.512 MHz, with a bandwidth of 33 KHz, a maximum range of 200 Km and a range resolution of 4.5 Km.  Azimuthally the radar covers a sweep 60 deg either side of a bore sight direction of 230 deg true east of north (approximately south-west).
Within the HF radar coverage area surface current radials are measured.  Data are also collected from which wind directions and significant wave height can be calculated.

Tags: Atmosphere | Atmospheric Winds | Surface Winds, Coastal Cities / Towns (Australia) | Perth, WA, Doppler Frequency, Global / Oceans | Indian Ocean, Marine Features (Australia) | Perth Canyon, WA, Oceans | Coastal Processes | Coral Reefs, Oceans | Ocean Circulation | Eddies, Oceans | Ocean Circulation | Ocean Currents, Oceans | Ocean Circulation | Upwelling, Oceans | Ocean Circulation | Wind-driven Circulation, Oceans | Ocean Waves | Sea State, Oceans | Ocean Waves | Significant Wave Height, Oceans | Ocean Waves | Swells, Oceans | Ocean Waves | Wave Frequency, Oceans | Ocean Waves | Wave Length, Oceans | Ocean Waves | Wave Period, Oceans | Ocean Waves | Wave Spectra, Oceans | Ocean Waves | Wave Speed/direction, Oceans | Ocean Waves | Wind Waves, Oceans | Ocean Winds | Surface Winds, Physical Oceanography, Radiance Or Imagery | Radio Wave | Radio Wave, States, Territories (Australia) | Western Australia, WERA HF Radar | Phased Array
Organization: Australian Ocean Data Network
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Fortescue Bay, eastern Tasmania

The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater video system. Sampling took place at 13 regions along the east coast of Tasmania, each comprising 3 subsites, this dataset refers to the Fortescue Bay region, and its 3 subsites: Lanterns, Munroe Bight and Thumbs.

Tags: 25 211001, Algal coverage, Centrostephanus rodgersii, Substratum type, Temperate Reef, Urchin barren coverage
Organization: Australian Ocean Data Network
Experimental Manipulation of Canopy Density in a Temperate Seagrass [Amphibolis griffithii (Black) den Hartog] Meadow: Effects on Sediments

Thirty 3 m diameter plots were established in Warnbro Sound, Western Australia in early 1991, within an Amphibolis griffithii meadow, and the shoot densities manipulated to 0, 25, 50, 75 and 100% (control) by pruning.  These experimental manipulations were monitored and maintained on a monthly basis until March 1993.  The effects of these density changes on sediments were investigated.

Tags: 63 618005, Amphibolis griffithii, Oceans | Marine Biology | Marine Plants, Oceans | Marine Sediments | Sediment Grain Size, Oceans | Marine Sediments | Sediment Transport
Organization: Australian Ocean Data Network
Scott Reef, Mermaid Reef and Broome: Environmental Monitoring & Oceanographic Measurements

Field work has been undertaken Northwestern Australia since August 1993 as a result of the AIMS Western Australia initiative and a monitoring contract with an external organisation. Field work involves the deployment and recovery of a moorings and tide gauges at Scott and Mermaid Reef. Oceanograhic data collected at Scott Reef and Mermaid Reef 1993 - 1999. UV Data collected at Broome and weather from Met Bureau weather stations in the region

Tags: Coastal Cities / Towns (Australia) | Broome, WA, Marine Features (Australia) | Mermaid Reef, WA, Marine Features (Australia) | Scott Reef, WA, Monitoring, Oceans | Ocean Pressure | Water Pressure, Oceans | Ocean Temperature | Water Temperature, Oceans | Tides | Tidal Height
Organization: Australian Ocean Data Network
Metabolic enzyme activities in black bream (Acanthopagrus butcheri) from the Swan-Canning Estuary, Western Australia

The CCO and LDH activities in liver, white muscle and gill tissues in the black bream (Acanthopagrus butcheri) were measured to determine their aerobic and anaerobic metabolism. Black bream were collected from five sites within the Swan-Canning estuary under summer conditions in 2001 and 2002 and again under winter conditions in 2002. Enzyme activity levels in the tissues taken were compared to identify spatial, seasonal or
annual variations.

Tags: 37 353003, Acanthopagrus butcheri, Black bream, Human Dimensions | Environmental Impacts | Contaminants, Oceans | Coastal Processes | Estuaries, Oceans | Marine Biology | Fish, aquatic toxicology, bioindicators, biomarkers
Organization: Australian Ocean Data Network
Improving the value of GBR reef fish monitoring for the RIMReP

Field experiments were conducted in March 2019 to compare fish data gathered using traditional Long Term Monitoring Program (LTMP) survey methods with data from surveys using a larger species pool. The two methods were:

the RM method (RM being an acronym of reef monitoring), only species from the LTMP subset were recorded as in standard LTMP reef monitoring surveys

and

the SPP method (referring to the many extra spp. included), species from the LTMP subset plus all other fish species (except for damselfishes and small cryptic fishes) were recorded

Comparisons were conducted on three reefs in the Townsville sector of the GBR:
-two on the mid-shelf (John Brewer Reef and RibReef)
-one on the outer shelf (Myrmidon Reef)
At each reef, three sites were surveyed (total of nine sites). Depths of 4-7m were sampled during a 6-day sampling period. Standard LTMP underwater visual census protocols were employed, counts and length estimates of large mobile fish species along 50 &times; 5 m belt transects, except the transects in this study were placed randomly along the reef slope, each separated by 5&ndash;10 m, rather than along fixed sites.

Organization: Australian Ocean Data Network