At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico

From 1994-2005 the Commercial Shark Fishery Observer Program (CSFOP) placed fishery observers aboard US bottom longline vessels engaged in directed fishing for sharks in the region from New Jersey to Louisiana, USA. Observers routinely recorded species specific at-vessel mortality as related to endu...

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Bibliographic Details
Published in:Gulf and Caribbean Research
Main Authors: Morgan, Alexia, Burgess, George H.
Format: Text
Language:unknown
Published: The Aquila Digital Community 2007
Subjects:
at-vessel fishing
mortality
sharks
Atlantic Ocean
Gulf of Mexico
Northwest Atlantic
Online Access:https://aquila.usm.edu/gcr/vol19/iss2/15
https://doi.org/10.18785/gcr.1902.15
https://aquila.usm.edu/context/gcr/article/1424/viewcontent/Pages_from_vol19.2_16.pdf
id ftsouthmissispun:oai:aquila.usm.edu:gcr-1424
record_format openpolar
spelling ftsouthmissispun:oai:aquila.usm.edu:gcr-1424 2023-07-30T04:05:54+02:00 At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico Morgan, Alexia Burgess, George H. 2007-01-01T08:00:00Z application/pdf https://aquila.usm.edu/gcr/vol19/iss2/15 https://doi.org/10.18785/gcr.1902.15 https://aquila.usm.edu/context/gcr/article/1424/viewcontent/Pages_from_vol19.2_16.pdf unknown The Aquila Digital Community https://aquila.usm.edu/gcr/vol19/iss2/15 doi:10.18785/gcr.1902.15 https://aquila.usm.edu/context/gcr/article/1424/viewcontent/Pages_from_vol19.2_16.pdf Gulf and Caribbean Research at-vessel fishing mortality sharks Atlantic Ocean Gulf of Mexico text 2007 ftsouthmissispun https://doi.org/10.18785/gcr.1902.15 2023-07-15T18:47:59Z From 1994-2005 the Commercial Shark Fishery Observer Program (CSFOP) placed fishery observers aboard US bottom longline vessels engaged in directed fishing for sharks in the region from New Jersey to Louisiana, USA. Observers routinely recorded species specific at-vessel mortality as related to enduring the stress oflongline capture. Data for 5 species of sharks (sandbar Carcharhinus plumbeus, blacktip Carcharhinus limbatus, dusky Carcharhinus obscurus, tiger Galeocerdo cuvier, scalloped hammerhead Sphyrna lewini, and great hammerhead Sphyrna mokilrran) were analyzed in this study. Multiple stepwise linear regressions indicate that age group, soak time and bottom water temperature can be used as predictors of at-vessel mortality and that size restrictions, size selective gear, restricting the soak time and time/area closures may be beneficial to fisheries targeting large coastal sharks. Text Northwest Atlantic The University of Southern Mississippi: The Aquila Digital Community Gulf and Caribbean Research 19
institution Open Polar
collection The University of Southern Mississippi: The Aquila Digital Community
op_collection_id ftsouthmissispun
language unknown
topic at-vessel fishing
mortality
sharks
Atlantic Ocean
Gulf of Mexico
spellingShingle at-vessel fishing
mortality
sharks
Atlantic Ocean
Gulf of Mexico
Morgan, Alexia
Burgess, George H.
At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
topic_facet at-vessel fishing
mortality
sharks
Atlantic Ocean
Gulf of Mexico
description From 1994-2005 the Commercial Shark Fishery Observer Program (CSFOP) placed fishery observers aboard US bottom longline vessels engaged in directed fishing for sharks in the region from New Jersey to Louisiana, USA. Observers routinely recorded species specific at-vessel mortality as related to enduring the stress oflongline capture. Data for 5 species of sharks (sandbar Carcharhinus plumbeus, blacktip Carcharhinus limbatus, dusky Carcharhinus obscurus, tiger Galeocerdo cuvier, scalloped hammerhead Sphyrna lewini, and great hammerhead Sphyrna mokilrran) were analyzed in this study. Multiple stepwise linear regressions indicate that age group, soak time and bottom water temperature can be used as predictors of at-vessel mortality and that size restrictions, size selective gear, restricting the soak time and time/area closures may be beneficial to fisheries targeting large coastal sharks.
format Text
author Morgan, Alexia
Burgess, George H.
author_facet Morgan, Alexia
Burgess, George H.
author_sort Morgan, Alexia
title At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
title_short At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
title_full At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
title_fullStr At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
title_full_unstemmed At-Vessel Fishing Mortality for Six Species of Sharks Caught in the Northwest Atlantic and Gulf of Mexico
title_sort at-vessel fishing mortality for six species of sharks caught in the northwest atlantic and gulf of mexico
publisher The Aquila Digital Community
publishDate 2007
url https://aquila.usm.edu/gcr/vol19/iss2/15
https://doi.org/10.18785/gcr.1902.15
https://aquila.usm.edu/context/gcr/article/1424/viewcontent/Pages_from_vol19.2_16.pdf
genre Northwest Atlantic
genre_facet Northwest Atlantic
op_source Gulf and Caribbean Research
op_relation https://aquila.usm.edu/gcr/vol19/iss2/15
doi:10.18785/gcr.1902.15
https://aquila.usm.edu/context/gcr/article/1424/viewcontent/Pages_from_vol19.2_16.pdf
op_doi https://doi.org/10.18785/gcr.1902.15
container_title Gulf and Caribbean Research
container_volume 19
_version_ 1772818198792503296

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