The data from this study, describes embryo development in Golden king crab, Lithodes aequispinus. Six female multiparous golden king crab were captured from the Aleutian Islands, Alaska, and mated in the laboratory. Their embryos were photographed and staged on average once every 9 days throughout embryogenesis.

Genetic data were collected and prepared with the use of protein electrophoresis from 52 spawning locations in southeastern Alaska and northern British Columbia. Genetic relationships were examined from principal components analysis and unrooted trees constructed from genetic distances between collections. These descriptive analyses suggest a geographic basis to genetic divergence among populations. This geographic basis was confirmed using log-likelihood-ratio analysis and analyses of variance. Three groups of populations were observed: one from systems that drain into the inside waters of northern and central southeast Alaska; another from the far southeastern islands (including Prince of Wales Island); and the third in systems of the southern inside waters. Although the geographic structure was a statistically significant component of the overall genetic structure, gene diversity analysis indicates that only about 4.7% of the total genetic variability was attributable to genetic differences among those regions, whereas about 8.4% of the total was due to differences among populations within each region. The other 87.0% of the variation occurred, on average, within each collection.

This dataset is part of a laboratory experiment, which evaluated how varying ratios of prey species (year-0 blue and red king crabs) and habitat type (shell and cobble) affect prey preference of year-1 red king crabs. The data includes experimental duration, tank number, predator species, prey species, substrate type, initial and final prey densities, number of prey eaten, crypsis indices, and survival.

The dataset is comprised of individual fish records from collections made during port sampling at Kodiak Alaska for the purpose of updating maturity estimates for selected GOA flatfish. The collections were made by an Alaska Fisheries Databank funded sampler. Sample preparation, ageing and histological determination of maturity state were completed by AFSC staff.

2009 walleye pollock larvae laboratory rearing experiment conducted in support of NPRB project 926. Data set contains various measurements of nuclear RNA used to determine the measurement that would be included in a model used to assess larval condition.

d15N and d13C isotopic ratios from multiple groundfish and groundfish prey samples collected on groundfish surveys and by fishery observers onboard commercial fishing vessels in the eastern Bering Sea, and Gulf of Alaska from 2006 through 2008 via NPRB project, NPRB.2006.22.Isotopes, and continued by AFSC.

Aerial surveys were conducted during 1983–2006 in the Ketchikan, Sitka, Kodiak, and Bristol Bay areas of Alaska to estimate trends in abundance of harbor seals.

This dataset is from a laboratory study that investigated the effect of temperature and tissue type on fatty acid signatures of Pacific cod and walleye pollock.

The project objectives were to assess potential salmon predation impact on juvenile salmon and herring by: (1) comparing diets of adult pink salmon during their homing migrations using samples taken from surface trawls in SEAK straits and purse seines in SEAK and PWS; (2) contrasting predation incidence of these abundant pink salmon with the less abundant, more piscivorous adult coho and immature (age-1+) Chinook salmon in SEAK straits; and (3) examining potential climate mechanisms that could influence predator-prey match-mismatch by altering life history patterns of growth, migration timing, or stock-specific characteristics.

Groundfish catch and effort data (excluding flatfishes and rockfishes) collected by observers in the United States commercial groundfish fisheries of Alaska (Bering Sea, Aleutian Islands and Gulf of Alaska, 1993-2017.
Subset of the Alaska observer groundfish data, aggregating by 400km square cells and eliminating cells with less than three vessels to create a public version of the Alaska groundfish observer data.
Purpose: Allows visitors use of the aggregated observer data to create maps. These maps are designed to provide a better understanding of where groundfish are caught in the Aleutian Islands, Bering Sea and Gulf of Alaska.
Supplemental_Information: http://www.afsc.noaa.gov/FMA/fma_database.htm
Number 3 of a set of 5 files:
1. AFSC/FMA: North Pacific Groundfish and Halibut Observer Program Fishery Statistics - Rockfish Catch
2. AFSC/FMA: North Pacific Groundfish and Halibut Observer Program Fishery Statistics - Flatfish Catch
3. AFSC/FMA: North Pacific Groundfish and Halibut Observer Program Fishery Statistics - Most fishes (excluding flatfishes and rockfishes) Catch
4. AFSC/FMA: North Pacific Groundfish and Halibut Observer Program Fishery Statistics - Invertebrates Catch
5. AFSC/FMA: North Pacific Groundfish and Halibut Observer Program Fishery Statistics - Effort Statistics