Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States
Abundance and size composition estimates of Middle Atlantic ocean quahog. Arctica is~dica ~ populations were derived from seven federal (BCF NMFS) research survey cruises conducted from Cape Cod to Cape Hatteras during 1965-1977. Sampling was performed with a hydraulic shellfish dredge utilizing a t...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.423.4653 2023-05-15T17:52:17+02:00 Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States Steven A. Murawski Fredric M. Serchuk National Marine Fisheries Service Oods Hole Labora Tory The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.4653 http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.4653 http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf text ftciteseerx 2016-01-08T04:10:36Z Abundance and size composition estimates of Middle Atlantic ocean quahog. Arctica is~dica ~ populations were derived from seven federal (BCF NMFS) research survey cruises conducted from Cape Cod to Cape Hatteras during 1965-1977. Sampling was performed with a hydraulic shellfish dredge utilizing a transect grid-type survey design, post-stratified to area/depth strata. Standardized tows of four minutes duration using a 121.92 cm (48 in) wide dredge sampled approximately 83 m2 of bottom per station. Minimum population size in numbers and biomass (meat weight) was calculated using mean quahog densities (1965-1977) expanded by strata a~eas. Within the surveyed regions, a standing crop of approximately 56.6 x 10 ocean quahogs was estimated. having a biomass of 1.5 x 106 metric tons (mt). The largest proportion of the resource (46%) was located off Long Island, with 44% off New Jersey and 10 % off the Delmarva Peninsula. Estimates of equilibrium yields for the Middle Atlantic quahog resource (Long Island th,'ough Delmarv~) ranged from 3,022 to 45,332 mt. assuming rates of instantaneous natural mortality Text Ocean quahog Unknown Long Island |
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ftciteseerx |
language |
English |
description |
Abundance and size composition estimates of Middle Atlantic ocean quahog. Arctica is~dica ~ populations were derived from seven federal (BCF NMFS) research survey cruises conducted from Cape Cod to Cape Hatteras during 1965-1977. Sampling was performed with a hydraulic shellfish dredge utilizing a transect grid-type survey design, post-stratified to area/depth strata. Standardized tows of four minutes duration using a 121.92 cm (48 in) wide dredge sampled approximately 83 m2 of bottom per station. Minimum population size in numbers and biomass (meat weight) was calculated using mean quahog densities (1965-1977) expanded by strata a~eas. Within the surveyed regions, a standing crop of approximately 56.6 x 10 ocean quahogs was estimated. having a biomass of 1.5 x 106 metric tons (mt). The largest proportion of the resource (46%) was located off Long Island, with 44% off New Jersey and 10 % off the Delmarva Peninsula. Estimates of equilibrium yields for the Middle Atlantic quahog resource (Long Island th,'ough Delmarv~) ranged from 3,022 to 45,332 mt. assuming rates of instantaneous natural mortality |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Steven A. Murawski Fredric M. Serchuk National Marine Fisheries Service Oods Hole Labora Tory |
spellingShingle |
Steven A. Murawski Fredric M. Serchuk National Marine Fisheries Service Oods Hole Labora Tory Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
author_facet |
Steven A. Murawski Fredric M. Serchuk National Marine Fisheries Service Oods Hole Labora Tory |
author_sort |
Steven A. Murawski |
title |
Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
title_short |
Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
title_full |
Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
title_fullStr |
Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
title_full_unstemmed |
Dynamics of Ocean Quahog, Arctica isZandica Populations off the Middle Atlantic Coast of the United States |
title_sort |
dynamics of ocean quahog, arctica iszandica populations off the middle atlantic coast of the united states |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.4653 http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf |
geographic |
Long Island |
geographic_facet |
Long Island |
genre |
Ocean quahog |
genre_facet |
Ocean quahog |
op_source |
http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.4653 http://www.nefsc.noaa.gov/publications/series/whlrd/whlrd7916.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766159684220223488 |