Female reproductive output of snow crab in eastern Bering Sea, Armstrong, pr#508

This file contains detailed crab data collected from the annual NOAA/NMFS/AFSC/RACE crab-groundfish bottom trawl survey of the eastern Bering Sea continental shelf.
The standard survey area, surveyed each year since 1979, encompasses a major portion of the eastern Bering Sea shelf between the 20 meter and 200 meter isobaths and
from the Alaska Peninsula to the north of St. Matthew Island. The study area is divided into a grid with cell sizes of 20 x 20 nautical miles (37 x 37 kilometers).
Sampling takes place within each 20 x 20 nautical mile grid cell. In areas surrounding St. Matthew and the Pribilof Islands, grid corners were also sampled to
better assess king crab concentrations. Each tow is one-half hour in duration, averaging 1.54 nautical miles (2.86 kilometers) - exact tow duration and distance fished
for each haul is given in the haul data file. 100% of the catch is sorted for red and blue king crab, Tanner and snow crab, and hair crab. Crabs are sorted by species
and sex, and a sample is measured to the nearest millimeter to provide a size-frequency distribution (see note under use constraints for analyzing catches where crab
were subsampled for measurement). Carapace width is measured for Tanner and snow crabs, and carapace length is measured for king and hair crabs. These datasets were archived as part of the North Pacific Research Board legacy project recovery effort undertaken by Axiom Data Science and NPRB in 2025. The goal of the recovery effort was to assess the NPRB-funded data projects from 2002 to 2014 and archive final data packages that were ready for publication to increase long-term accessibility and discoverability. Data packages were archived as is given limited funding and resources.