Dataset 213
Northeast Fisheries Science Center Bottom Trawl Survey Data (OBIS-USA)
Realm: Marine
Climate: Temperate
Biome: Temperate shelf and seas ecoregions Central latitude: 36.625131
Central longitude: -72.635974
Duration: 48 years, from 1948 to 2008
Climate: Temperate
Biome: Temperate shelf and seas ecoregions Central latitude: 36.625131
Central longitude: -72.635974
Duration: 48 years, from 1948 to 2008
439450 records
1021 distinct species
Across the time series Merluccius bilinearis is the most frequently occurring speciesMethods
This is the Northeast Fisheries Science Center Bottom Trawl Survey database for Northwest Atlantic marine organisms. Survey cruises use a bottom trawl to sample randomly selected stations in an attempt to delineate the species composition. geographic distribution. and abundance of various resources. Fish and selected invertebrate species are identified. Weight. length. total catch numbers. age structures. maturity stages. sex determinations and food content are recorded or collected during the survey cruises. Associated oceanographic and meteorological data. salinity. conductivity. and temperature data are available for all stations. Ichthyoplankton and zooplankton data is available for a subset of the stations. Geographic coverage is from Cape Hatteras to the Gulf of Maine and from the coast to the slope water. View entire textPurpose: The surveys are designed to provide information on the abundance. biology. and distribution of the living marine resources of the Northwest Atlantic and the environmental conditions affecting them for management purposes and to provide for broadscale ecosystems research. Unit of abundance = IndCountInt, Unit of biomass = AggregatedWeightCitation(s)
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