This data set contains Steller sea lion diet data based on analysis of scats collected during summer (May-September) and winter (November-April) rookeries and haulouts in Alaska during 1990 to 2009. Prey items from 87 prey taxa were identified using hard parts including bones, otoliths, and cephalopod beaks. Frequency of occurrence was calculated for 375 site-year-season combinations, and used in the analysis published by Sinclair et al. (2013).
Cite the dataset as: Alaska Ecosystems Program. 2019. Alaska Steller sea lion food habits data 1990-2009. NOAA Fisheries Open Data Portal: https://noaa-fisheries-afsc.data.socrata.com/Species/Alaska-Steller-Sea-Lion-Food-Habits-Data-1990-2009/b79u-i7en; and also cite the original publication: Sinclair, E. H., D. S. Johnson, T. K. Zeppelin, and T. S. Gelatt. 2013. Decadal variation in the diet of Western Stock Steller sea lions (Eumetopias jubatus). U.S. Dep. Commer., NOAA Tech. Memo. NMFSAFSC-248, 67 p.

This database contains information on pup production estimates, adult male counts and harvests (commercial and subsistence) for the Pribilof Islands of St. Paul and St. George. Methodology for the data collection for adult males and animals harvested has been consistent over time. The estimation of pup production has gone through an evolution of methodology that is indicated in the database. Cite dataset as: Alaska Ecosystems Program. 2019. Northern fur seal pup production, adult male counts and harvest data for the Pribilof Islands, Alaska 1909 to Present. NOAA Fisheries Open Data Portal: https://noaa-fisheries-afsc.data.socrata.com/Ecosystem-Science/Northern-fur-seal-pup-production-adult-male-counts/c983-ijgd

Scientists at the Auke Bay Laboratory have conducted marine debris surveys on select beaches in Alaska periodically since 1972. Some of the beaches previously sampled have been identified as marine debris hot spots due to their increased debris accumulation. At each location, multiple 1 km beach segments were sampled by people walking the beach and enumerating all anthropogenic marine debris found. The beach area surveyed was from the waters edge up to the base of the storm berm or log piles. Individual beach segments have been walked multiple times in the since 1972 allowing for a direct comparison with prior years. Sampling occurred in late spring and summer to test the hypothesis of change in marine debris sources due to increased summer boat traffic and the diminished occurrence and severity of storms.

This dataset contains information regarding the capture and tagging of northern fur seals on the Pribilof Islands and Bogoslof Island, Alaska, from 1992 to 2017. Cite dataset as: Alaska Ecosystems Program. 2019. Alaska northern fur seal tag data, 1992-2017. NOAA Fisheries Open Data Portal. https://noaa-fisheries-afsc.data.socrata.com/Species/Alaska-Northern-Fur-Seal-Tag-Data-1992-2017/nvhy-vag6

This dataset contains crab data from a field survey of Chionoecetes spp. collected during the 2016 NOAA/NMFS/AFSC/RACE groundfish and invertebrate resources bottom trawl survey of the eastern Bering Sea continental slope (EBSS). Crabs were taken opportunistically, at any station regardless of location and depth, and at random. Blood samples were taken from collected crab using non-lethal methods and were preserved in 100% ethanol. Samples were tested in a laboratory with a DNA test to detect the presence of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS). The data includes sampling year, sampling station information, species, crab morphometrics, Hematodinium sp. parasite presence/absence based on PCR assay results.

This dataset contains crab data from a field survey of Chionoecetes bairdi and C. opilio collected at six designated index sites in the Bering Sea during the 2015 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl surveys of the eastern Bering Sea. Each of the six index sites were made up of approximately 10 survey stations and chosen based on historical incidences of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS). Blood samples were taken from collected crab using non-lethal methods and were preserved in 100% ethanol. Samples were tested in a laboratory with a DNA test to detect the presence of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS) to evaluate any changes in intensity of disease within the index sites that may provide information as to how the disease is moving or changing within EBS crab populations. The data includes sampling year, index site, species, crab morphometrics, Hematodinium sp. parasite presence/absence based on PCR assay results.

This dataset contains crab data from a field survey of Chionoecetes bairdi and C. opilio collected at six designated index sites in the Bering Sea during the 2014 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the eastern Bering Sea. Each of the six index sites were made up of approximately 10 survey stations and chosen based on historical incidences of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS). Crab collected at each survey station were preserved and tested in a laboratory with a DNA test for the presence of Hematodinium sp. parasite DNA to evaluate any changes in intensity of disease within the index sites that may provide information as to how the disease is moving or changing within EBS crab populations. The data includes index site, species, crab morphometrics, Hematodinium sp. parasite presence/absence based on PCR assay results.

This dataset contains information regarding the sighting and capture of Steller sea lions marked in Alaska from 1987 to 2014. Marks are seen and documented in a variety of ways; remote cameras, dedicated vessel- and land-based surveys, recaptures of Steller sea lions, aerial survey photographs, strandings, and opportunistic sightings sent in from the public.

This dataset contains crab data from a field survey of Chionoecetes bairdi and C. opilio collected at six designated index sites in the Bering Sea during the 2016 NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl surveys of the eastern Bering Sea. Each of the six index sites were made up of approximately 10 survey stations and chosen based on historical incidences of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS). Blood samples were taken from collected crab using non-lethal methods and were preserved in 100% ethanol. Samples were tested in a laboratory with a DNA test to detect the presence of the parasite Hematodinium sp., the causative agent of Bitter Crab Syndrome (BCS), to evaluate any changes in intensity of disease within the index sites that may provide information as to how the disease is moving or changing within EBS crab populations. The data includes sampling year, index site, species, crab morphometrics, Hematodinium sp. parasite presence/absence based on PCR assay results.

Juvenile red and blue king crabs (Paralithodes camtschaticus and P. platypus) were exposed to three pH levels: ambient (pH 8.1), pH 7.8, and pH 7.5 for three weeks. Oxygen consumption and feeding ration were determined immediately after exposure to treatment water and after three weeks exposure. Growth can be calculated from the wet mass observations.