Measurements of conductivity, temperature, and depth (CTD), in addition to dissolved oxygen, nitrogen, and fluorescence, were collected in the Wainwright Inlet, the mouth of the Kuk River, and in the nearshore region off Wainwright, Alaska, in August 2009 with a Seabird SBE 19. Post-survey calculations of salinity were made from the conductivity measurements.

Measurements of conductivity and temperature were collected with a high-accuracy conductivity and temperature recorder (Seabird SBE37 microcat) in approximately 10 m water depth at a single location fronting the village of Wainwright, Alaska, from 24 August to 1 October 2009. The instrument was mounted on the frame approximately 0.50 m off the bottom of the seafloor. Salinity was calculated from conductivity measurements.

Fisheries-Oceanography Coordinated Investigations (FOCI) is an effort by NOAA and associated academic scientists. At present, FOCI consists of a Shelikof Strait (western Gulf of Alaska) walleye pollock project, and a NOAA Coastal Ocean Program project: Southeast Bering Sea Carrying Capacity. FOCI also supports associated projects, such as the Arctic Research Initiative, U.S. GLOBEC and North Pacific Marine Research Program, that address scientific issues related to FOCI. FOCI's goal is to understand the effects of abiotic and biotic variability on ecosystems of the North Pacific Ocean and Bering Sea in order to discern the physical and biological processes that determine recruitment variability of commercially valuable finfish and shellfish stocks in Alaskan waters. The objectives of this cruise are to conduct an ichthyoplankton survey and process-oriented studies in the region between Kennedy Entrance and Shelikof Strait to Unimak Pass to estimate the abundance of young walleye pollock larvae, their transport, and factors influencing their survival. We also intend to occupy stations on Line 8 to continue our 15 yr. time series of environmental and biological conditions in Shelikof Strait.

Time-series measurements of waves, currents, water levels, sea surface temperatures, ocean salinity, and water, air, and ground temperatures were collected in July through September 2011 in and around Arey Lagoon, near Barter Island, Alaska. Directional wave spectra, currents, water levels, salinity, and bottom and surface water temperatures were measured with a bottom-mounted 1MHz Nortek AWAC, HOBO temperature loggers, and a Solinst Levelogger in ~5m water depth offshore of Arey Island. Within Arey Lagoon, a bottom-mounted frame equipped with a Nortek 1MHz Aquadopp, Solinst Levelogger, and HOBO temperature loggers measured currents, water levels, and water temperatures. Ground temperatures (maximum depth 3 meters below the surface), were measured with HOBO temperature loggers and EMS iButtons at incremental depths across a tundra bluff, within a wet sedge region, and on the Arey Island island surrounding Arey Lagoon. This metadata file describes the conductivity, temperature, and depth (CTD) measurements that were collected, and the salinity that was calculated from the conductivity. Data summaries and further details can be found in Erikson and others, 2020.

Time-series measurements of waves, currents, water levels, sea surface temperatures, ocean salinity, and water, air, and ground temperatures were collected in July through September 2011 in and around Arey Lagoon, near Barter Island, Alaska. Directional wave spectra, currents, water levels, salinity, and bottom and surface water temperatures were measured with a bottom-mounted 1MHz Nortek AWAC, HOBO temperature loggers, and a Solinst Levelogger in ~5m water depth offshore of Arey Island. Within Arey Lagoon, a bottom-mounted frame equipped with a Nortek 1MHz Aquadopp, Solinst Levelogger, and HOBO temperature loggers measured currents, water levels, and water temperatures. Ground temperatures (maximum depth 3 meters below the surface), were measured with HOBO temperature loggers and EMS iButtons at incremental depths across a tundra bluff, within a wet sedge region, and on the Arey Island island surrounding Arey Lagoon. This metadata file describes the conductivity, temperature, and depth (CTD) measurements that were collected, and the salinity that was calculated from the conductivity. Data summaries and further details can be found in Erikson and others, 2020.

Fisheries-Oceanography Coordinated Investigations (FOCI) is an effort by NOAA and associated academic scientists. At present, FOCI consists of a Shelikof Strait (western Gulf of Alaska) walleye pollock project, and a NOAA Coastal Ocean Program project: Southeast Bering Sea Carrying Capacity. FOCI also supports associated projects, such as the Arctic Research Initiative, U.S. GLOBEC and North Pacific Marine Research Program, that address scientific issues related to FOCI. FOCI's goal is to understand the effects of abiotic and biotic variability on ecosystems of the North Pacific Ocean and Bering Sea in order to discern the physical and biological processes that determine recruitment variability of commercially valuable finfish and shellfish stocks in Alaskan waters. The objectives of this cruise are to conduct an ichthyoplankton survey and process-oriented studies in the region between Kennedy Entrance and Shelikof Strait to Unimak Pass to estimate the abundance of young walleye pollock larvae, their transport, and factors influencing their survival. We also intend to occupy stations on Line 8 to continue our 15 yr. time series of environmental and biological conditions in Shelikof Strait.

Fisheries-Oceanography Coordinated Investigations (FOCI) is an effort by National Oceanic and Atmospheric Administration (NOAA) and associated academic scientists. FOCI's goal is to understand the effects of abiotic and biotic variability on ecosystems of the North Pacific Ocean and Bering Sea in order to discern the physical and biological processes that determine recruitment variability of commercially valuable finfish and shellfish stocks in Alaskan waters. We will focus our efforts on the physical, chemical and biological processes occurring in particular areas of this region. These include: several troughs of differing size, banks, the area near Kennedy - Stevenson Entrances, as well as one of the large offshore eddies, that typically impact this area between April and July and contribute to on and offshore fluxes.

The late-summer FOCI cruise was designed to address biological and methodological questions regarding age-0 walleye pollock in the western Gulf of Alaska. The primary cruise objective was to collect data on age-0 pollock and their environment in the area between Shelikof Strait and the Shumagin Islands, from nearshore to the outer shelf. Many juvenile pollock, spawned in Shelikof Strait, are carried to the study area of interest by the prevailing current. Complex topography in this area creates a habitat mosaic that probably affects pollock nursery suitability and may lead to accumulations of fish in favorable areas. This is relevant to FOCI's goal because accumulation of age-0 pollock in favorable areas may be an important factor in subsequent recruitment to the GOA stock. The Chirikof Island area was of particular interest because the abundance of yearling pollock in that area during the late winter is a proven indicator of year-class strength.

CTD water column profile and bottom data collected during the 2021-2023 Gulf of Alaska summer bottom trawl surveys conducted by the NOAA Fisheries/Alaska Fisheries Science Center/Resource Assessment and Conservation Engineering Division/Groundfish Assessment Program. Data include temperature, salinity, density, depth, pressure, sound speed, and buoyancy frequency. The data types are digital numeric in a netCDF file.

The objectives of this cruise were to conduct an ichthyoplankton survey and process studies in the region between the Shumagin Islands and Shelikof Strait and then from SE Kodiak to the Kenai Peninsula so that we could estimate the abundance, transport, and factors influencing the survival of young walleye pollock larvae. We also occupied six of the stations on Line 8 to continue our 27-year time series of environmental and biological conditions in Shelikof Strait. In addition to this sampling, 43 stations selected from the grid for the GOA-IERP research project were occupied on the shelf break as well as on the NE side of Kodiak Island to acquire larval fish of five target species (sablefish, walleye pollock, Pacific cod, arrowtooth flounder, and Pacific Ocean perch). A SBE 19Plus was deployed synoptically with gear used to sample icythoplankton and zooplankton at selected stations. Temperature and Conductivity were measured and Salinity and Sigma-T were derived from these measurements. While the SeaCAT measures values on the down and upcasts, only the upcasts are used.