Physical profile data from CTD casts from the RV Medeia in the coastal waters of Southeast Alaska in support of the SE Alaska Red King Crab Survey from 09 June 2010 to 21 July 2010 (NCEI Accession 0066061)
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The Alaska Department of Fish and Game conducts annual shellfish surveys that include Red King Crab, Tanner Crab, and Shrimp which is used to manage the personal commercial fisheries. Lack of oceanographic data in Northern Southeast Alaska spurred interest in helping create an oceanographic database by collecting CTD in our current survey locations. The CTD data include conductivity(S/m), depth(m), pressure (db), oxygen saturation (ml/l), salinity (PSU), and Temperature (Celsius).
Fish/shellfish survey data from SMALL BOATS in the Gulf of Alaska from 1993-08-12 to 1994-08-19 (NCEI Accession 9700023)
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This dataset includes fish/shellfish survey data collected from small boats in the Gulf of Alaska from August 12, 1993, to August 19, 1994. These data were collected by Brenda Norcross of University of Alaska Institute of Marine Science. Data has been processed to the NODC standard Fish/Shellfish Surveys (F123) format. The F123 format is used for data from field sampling of marine fish and shellfish. The data derive from analysis of midwater or bottom tow catches and provide information on population density and distribution. Cruise information, position, date, time, gear type, fishing distance and duration, and number of hauls are reported for each survey. Environmental data may include meteorological conditions, surface and bottom temperature and salinity, and current direction and speed. Bottom trawl or other gear dimensions and characteristics are also reported. Catch statistics (e.g., weight, volume, number of fish per unit volume) may be reported for both total haul and for individual species. Biological characteristics of selected specimens, predator/ prey information (from stomach contents analysis), and growth data may also be included. A text record is available for comment.
Physical profile data collected aboard the F/V Columbia in the Gulf of Alaska during the Lower Cook Inlet (Alaska) seasonal hydrographic surveys, 2005-01-08 to 2005-01-10 (NCEI Accession 0040248)
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This is the CTD data from one of sixteen cruises in lower Cook Inlet. Four CTDs were used, but most also included fluorescence, transmissometer, and oxygen measurements. There were 3 to 7 transect lines occupied. Profiles were from the surface to the extent of a 200 m line. A few profiles were conducted on a slightly longer line. The dataset was formatted for use with Ocean Data View software.
Fish species, Fish biomass, Fishery survey, invertebrate species, and other variables collected from midwater net tows, and bottom trawl observations using net, trawl, and other instruments from the Arctic Ocean, and Beaufort Sea from August 6, 2008 to August 21, 2008 (NCEI Accession 0112823)
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The Alaska Fisheries Science Center's Status of Stocks and Multispecies Assessment (SSMA) Programs Fishery Interaction Team (FIT) conducted a fish survey in the marine offshore waters of the Beaufort Sea during the month of August, 2008. The Mineral Management Service (MMS) provided funding for the survey. The results of the survey provided estimates of abundance, species composition and biological information of marine fish and invertebrates, oceanographic properties and information on the macro- and micro- zooplankton communities.
Nearshore fish survey in northern Bristol Bay, Alaska conducted from 2009-07 to 2009-08 by Alaska Fisheries Science Center, Resource Ecology and Fisheries Management division (NCEI Accession 0144625)
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The project consisted of a nearshore fish, invertebrate, and habitat survey in northern Bristol Bay, Alaska. A 32-ft. gillnet vessel, the F/V Willow was chartered for the survey, and we also used a 20-ft. aluminum skiff with 90-hp. motor for shallow water work. The survey was staged out of Dillingham, Alaska and took place from July 26-August 8, 2009. The main gear types used during the survey were a beach seine and a bottom beam trawl. A surface pair trawl (towed by the vessel and the skiff) was deployed in one location. Using these gear types, we sampled from the shoreline to 17 m depth, as well as surface waters ~1 km from the shoreline. Catches were sorted to species, enumerated, and when possible weighed using spring scales. Length measurements were taken for most species. Voucher specimens were preserved in 10% formalin for confirmation of species identification. A small number of samples were frozen for age and energetics analysis. Photographs were taken of most species. Small, datalogging conductivity-temperature-depth recorders (CTDs) were deployed on the trawl gear, and also placed on temporary moorings in several locations to study fluctuations in temperature and salinity over tidal cycles. We also recorded habitat variables at beach seine sites according to the methodology used in the Nearshore Fish Atlas of Alaska. During July 26-August 1, 2009 sampling was conducted in Nushagak Bay. High wind and waves hampered the sampling throughout this entire week and largely determined possible sampling locations. Two days were completely lost due to weather. On August 3 we traveled from Dillingham to the west side of the Nushagak and from August 4-8 sampling was conducted along the Nushagak Peninsula and in Kulukak, Nunavachak, Ungalikthluk, and Togiak Bays. During most of this time we experienced high winds but they did not hamper the sampling to the same degree as in the Nushagak. On August 8 we traveled back to Dillingham.