The data (Appendix 1) describe multiple micro samples from 40 specimens. The data set first provides specimen identification information: Specimen ID, estimated age, and AFSC RACE cruise number. Second, the data describes the milling and physical properties of each milled sampled, up to 42 samples per specimens: volume and mass. Finally, the data contain information and results from mass spectrometry analysis measuring d13C and d18O.

The data set contains bomb radiocarbon dating of otolith and other material used in age validation studies. Some are published and others are a work in progress. See reports or publications for scientific results and contact the Life History Program for status of others. Data reported is from radiocarbon analyses by NOSAMS (National Ocean Sciences Accelerator Mass Spectrometry facility at Woods Hole Oceanographic Institution).

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.

Weekly biophysical and fish model output of FEAST. Part of The Bering Sea Project, FEAST is a high resolution (~10km2) spatial model that uses a Regional Ocean Modeling System for the Bering Sea (ROMS Bering-10K), with two way feedback to a Nutrient-Phytoplankton-Zooplankton Model and two way feedback to a multispecies bioenergetics fish model.

A total of 105 stations were occupied. There were two sample grids (southeast Alaska and Yakutat Bay) and two transects in the vicinity of Kayak Island. At each station we sampled using paired 20 and 60 cm Bongo frames (150 and 500 micron mesh nets, respectively) and a Sameoto neuston sampler (500 micron mesh net) to estimate the abundance of zoo- and ichthyoplankton. A SeaBird SeaCat (SBE 19 plus) was used with the bongo frames to determine the depth of the samplers in real time and to measure temperature and conductivity. At a few selected stations depth-stratified plankton were obtained with a 1 meter squared MOCNESS (500 micron mesh nets) and at other selected stations microzooplankton were sampled with vertical tows of a CalVET net (53 micron mesh).

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.

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The Resource Assessment and Conservation Engineering Division (RACE) of the Alaska Fisheries Science Center (AFSC) conducts bottom trawl surveys to monitor the condition of the demersal fish and crab stocks of Alaska. These data include catch per unit effort for each commercially important crab species at a standard set of stations in the eastern Bering Sea. This is a subset of the main database. Excluded are certain non standard tows and other types of data collected other than species id, species size category, species catch per unit effort (number per square nautical mile), water temperature and depth.

The scientific objective of the Gulf of Alaska Survey (GOA Survey) is to assess Young of the Year (YOY) groundfish, salmon, plankton, and oceanographic conditions across the coastal, shelf, slope, and offshore waters of the GOA and to provide information on species distribution, ecosystem structure, and marine productivity in response to changes in season, region, and climate. Specific objectives are to 1) observe epi-pelagic fish communities by sampling with a rope trawl towed at the surface; 2) collect electronic oceanographic data including CTD (Conductivity-temperature-depth) vertical profiles of temperature, salinity, light transmission, chlorophyll a fluorescence, and photosynthetic available radiation (PAR); and 3) collect biological oceanographic samples (zooplankton and water) by oblique bongo tows and water sampling.

Annual growth increment patterns observed in the hard parts of many marine organisms are often related to factors in the physical environment, and investigators are increasingly using dendrochronology (tree-ring science) methods to explore these relationships. Dendrochronology techniques were applied to the otolith growth increments of yellowfin sole Limanda aspera to determine the extent to which somatic growth and otolith growth are coupled. Otoliths were visually crossdated to ensure that the correct calendar year was assigned to each growth increment. Growth-increment widths were measured in each otolith, crossdating was statistically checked, and a master chronology was generated by averaging measurement time series after age-related growth declines had been removed. The final chronology spanned 43 yr and was significantly related to Bering Sea bottom temperature and sea surface temperature. The relationship between otolith growth and somatic growth was explored using regression analysis. Population-wide otolith anomalies were found to be significantly related to population-wide anomalies in body size, as indexed by fish weight-length ratios.