NEFSC_FISH_SPECIES_THROUGH_TIME eng UTF8 dataset service Erddap Department of Marine and Coastal Sciences, Rutgers University 848-932-6555 71 Dudley Road New Brunswick NJ 08901 USA erddap@marine.rutgers.edu pointOfContact 2026-07-02 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 unknown 5 10.0 row 557 0.019785377697841725 column 577 0.01978536458333334 area Northeast Fisheries Science Center "Fish Species Through Time" Trawl Dataset[TG2]. 2026-07-02 creation nybsand.marine.rutgers.edu NEFSC_FISH_SPECIES_THROUGH_TIME Rutgers University https://portal.midatlanticocean.org/data-catalog/ information web browser Background Information Background information from the source information originator The Fish Species Through Time data represent an analysis of Northeast Fisheries Science Center (NEFSC) bottom trawl survey data collected between 1972 and 2016 (Spring includes an additional year up to 2017). This analysis was performed by The Nature Conservancy with funding from Virginia�s Coastal Zone Management Program. Layers show where selected individual fish species have consistently been found in high biomass over time (by decade). The species included are those that are important recreationally and/or commercially in the Mid-Atlantic region and are also relatively well represented in the trawl survey data. Employing analysis methods developed by NEFSC and Rutgers University, an interpolated biomass surface was derived for each species, each year and each season (refer to the documentation of the fish biomass data layers on the Mid-Atlantic Ocean Data Portal for an overview on the methods used). Each interpolated surface was then analyzed to determine areas of higher relative biomass. Two thresholds were used � �high� and �highest�. These thresholds represent biomass values in the top 25% and top 10%, respectively, of all biomass values available for an individual species and season. The same threshold values are used for all decades, so the resulting layers are comparable. These areas of high biomass by year were then combined by decade (e.g., 1990 � 1999) and areas with high year-to-year variability (areas with 5 years or less within the high or very high categories, or persistence below 50%) were removed. Areas where a species was present, regardless of biomass, were also developed. Finally, data layers were developed showing "overlap areas" for each species. This is a single layer for each species that shows areas of high biomass that occurred in all five decades and spatially overlapped with one another. Rutgers University https://portal.midatlanticocean.org/data-catalog/ information web browser Background Information Background information from the source information pointOfContact alewife americanshad atlanticmackerel biomass blackseabass bluebackherring bluefish butterfish center data dataset decade fall fish fisheries longfinsquid monkfish nefsc nmfs noaa norhteast northeast northernshortfinsquid redhake sandlance science scup species spinydogfish spring threshold through trawl theme Rutgers University project longitude latitude theme CF Standard Name Table v55 The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. Rutgers University largerWorkCitation project Unidata Common Data Model Grid largerWorkCitation project eng geoscientificInformation 1 -76.39011 -64.99374 33.98944 44.99011 Northeast Fisheries Science Center "Fish Species Through Time" Trawl Dataset[TG2]. 2026-07-02 creation Rutgers University https://portal.midatlanticocean.org/data-catalog/ information web browser Background Information Background information from the source information originator The Fish Species Through Time data represent an analysis of Northeast Fisheries Science Center (NEFSC) bottom trawl survey data collected between 1972 and 2016 (Spring includes an additional year up to 2017). This analysis was performed by The Nature Conservancy with funding from Virginia�s Coastal Zone Management Program. Layers show where selected individual fish species have consistently been found in high biomass over time (by decade). The species included are those that are important recreationally and/or commercially in the Mid-Atlantic region and are also relatively well represented in the trawl survey data. Employing analysis methods developed by NEFSC and Rutgers University, an interpolated biomass surface was derived for each species, each year and each season (refer to the documentation of the fish biomass data layers on the Mid-Atlantic Ocean Data Portal for an overview on the methods used). Each interpolated surface was then analyzed to determine areas of higher relative biomass. Two thresholds were used � �high� and �highest�. These thresholds represent biomass values in the top 25% and top 10%, respectively, of all biomass values available for an individual species and season. The same threshold values are used for all decades, so the resulting layers are comparable. These areas of high biomass by year were then combined by decade (e.g., 1990 � 1999) and areas with high year-to-year variability (areas with 5 years or less within the high or very high categories, or persistence below 50%) were removed. Areas where a species was present, regardless of biomass, were also developed. Finally, data layers were developed showing "overlap areas" for each species. This is a single layer for each species that shows areas of high biomass that occurred in all five decades and spatially overlapped with one another. ERDDAP griddap 1 -76.39011 -64.99374 33.98944 44.99011 tight ERDDAPgriddapDatasetQueryAndAccess https://nybsand.marine.rutgers.edu/erddap/griddap/NEFSC_FISH_SPECIES_THROUGH_TIME ERDDAP:griddap ERDDAP-griddap ERDDAP's griddap service (a flavor of OPeNDAP) for gridded data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. download Northeast Fisheries Science Center "Fish Species Through Time" Trawl Dataset[TG2]. 2026-07-02 creation Rutgers University https://portal.midatlanticocean.org/data-catalog/ information web browser Background Information Background information from the source information originator The Fish Species Through Time data represent an analysis of Northeast Fisheries Science Center (NEFSC) bottom trawl survey data collected between 1972 and 2016 (Spring includes an additional year up to 2017). This analysis was performed by The Nature Conservancy with funding from Virginia�s Coastal Zone Management Program. Layers show where selected individual fish species have consistently been found in high biomass over time (by decade). The species included are those that are important recreationally and/or commercially in the Mid-Atlantic region and are also relatively well represented in the trawl survey data. Employing analysis methods developed by NEFSC and Rutgers University, an interpolated biomass surface was derived for each species, each year and each season (refer to the documentation of the fish biomass data layers on the Mid-Atlantic Ocean Data Portal for an overview on the methods used). Each interpolated surface was then analyzed to determine areas of higher relative biomass. Two thresholds were used � �high� and �highest�. These thresholds represent biomass values in the top 25% and top 10%, respectively, of all biomass values available for an individual species and season. The same threshold values are used for all decades, so the resulting layers are comparable. These areas of high biomass by year were then combined by decade (e.g., 1990 � 1999) and areas with high year-to-year variability (areas with 5 years or less within the high or very high categories, or persistence below 50%) were removed. Areas where a species was present, regardless of biomass, were also developed. Finally, data layers were developed showing "overlap areas" for each species. This is a single layer for each species that shows areas of high biomass that occurred in all five decades and spatially overlapped with one another. OPeNDAP 1 -76.39011 -64.99374 33.98944 44.99011 tight OPeNDAPDatasetQueryAndAccess https://nybsand.marine.rutgers.edu/erddap/griddap/NEFSC_FISH_SPECIES_THROUGH_TIME OPeNDAP:OPeNDAP OPeNDAP An OPeNDAP service for gridded data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes. download physicalMeasurement Alewife_Fall_biomass float Alewife Fall biomass threshold Alewife_Spring_biomass float Alewife Spring biomass threshold AmericanShad_Fall_biomass float AmericanShad Fall biomass threshold AmericanShad_Spring_biomass float AmericanShad Spring biomass threshold AtlanticMackerel_Fall_biomass float AtlanticMackerel Fall biomass threshold AtlanticMackerel_Spring_biomass float AtlanticMackerel Spring biomass threshold BlackSeaBass_Fall_biomass float BlackSeaBass Fall biomass threshold BlackSeaBass_Spring_biomass float BlackSeaBass Spring biomass threshold BluebackHerring_Fall_biomass float BluebackHerring Fall biomass threshold BluebackHerring_Spring_biomass float BluebackHerring Spring biomass threshold Bluefish_Fall_biomass float Bluefish Fall biomass threshold Bluefish_Spring_biomass float Bluefish Spring biomass threshold Butterfish_Fall_biomass float Butterfish Fall biomass threshold Butterfish_Spring_biomass float Butterfish Spring biomass threshold LongfinSquid_Fall_biomass float LongfinSquid Fall biomass threshold LongfinSquid_Spring_biomass float LongfinSquid Spring biomass threshold Monkfish_Fall_biomass float Monkfish Fall biomass threshold Monkfish_Spring_biomass float Monkfish Spring biomass threshold NorthernShortfinSquid_Fall_biomass float NorthernShortfinSquid Fall biomass threshold NorthernShortfinSquid_Spring_biomass float NorthernShortfinSquid Spring biomass threshold RedHake_Fall_biomass float RedHake Fall biomass threshold RedHake_Spring_biomass float RedHake Spring biomass threshold SandLance_Fall_biomass float SandLance Fall biomass threshold SandLance_Spring_biomass float SandLance Spring biomass threshold Scup_Fall_biomass float Scup Fall biomass threshold Scup_Spring_biomass float Scup Spring biomass threshold SpinyDogfish_Fall_biomass float SpinyDogfish Fall biomass threshold SpinyDogfish_Spring_biomass float SpinyDogfish Spring biomass threshold Erddap Department of Marine and Coastal Sciences, Rutgers University 848-932-6555 71 Dudley Road New Brunswick NJ 08901 USA erddap@marine.rutgers.edu distributor OPeNDAP DAP/2.0 https://nybsand.marine.rutgers.edu/erddap/griddap/NEFSC_FISH_SPECIES_THROUGH_TIME.html order Data Subset Form ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. download https://nybsand.marine.rutgers.edu/erddap/griddap/NEFSC_FISH_SPECIES_THROUGH_TIME.graph order Make-A-Graph Form ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. mapDigital dataset Created by Eli Hunter (hunter@marine.rutgers.edu),19-Jun-2020 13:09:19 This record was created from dataset metadata by ERDDAP Version 2.30.0