Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium
Because of a lack of fishery- dependent data, assessment of the recovery of fish stocks that undergo the most aggressive form of management, namely harvest moratoriums, remains a challenge. Large schools of red drum (Sclaenops ocellatus) were common along the northern Gulf of Mexico until the late 1...
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ftunsouthalabama:oai:jagworks.southalabama.edu:usa_faculty_staff_pubs-1082 2023-05-15T18:05:54+02:00 Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium Powers, Sean P. Hightower, Crystal Drymon, J. Marcus Johnson, Matthew W. 2012-01-01T08:00:00Z application/pdf https://jagworks.southalabama.edu/usa_faculty_staff_pubs/70 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1082&context=usa_faculty_staff_pubs unknown JagWorks@USA https://jagworks.southalabama.edu/usa_faculty_staff_pubs/70 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1082&context=usa_faculty_staff_pubs University Faculty and Staff Publications Animal Sciences Aquaculture and Fisheries Bioinformatics Data Science Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology text 2012 ftunsouthalabama 2022-11-03T18:44:40Z Because of a lack of fishery- dependent data, assessment of the recovery of fish stocks that undergo the most aggressive form of management, namely harvest moratoriums, remains a challenge. Large schools of red drum (Sclaenops ocellatus) were common along the northern Gulf of Mexico until the late 1980s when increased fishing effort quickly depleted the stock. After 24 years of harvest moratorium on red drum in federal waters, the stock is in need of reassessment; however, fishery dependent data are not available in federal waters and fishery-independent data are limited. We document the distribution, age composition, growth, and condition of red drum in coastal waters of the north central Gulf of Mexico, using data collected from a nearshore, randomized, bottom longline survey. Age composition of the fishery-independent catch indicates low mortality offish age 6 and above and confirms the effectiveness of the federal fishing moratorium. Bottom longline surveys may be a cost-effective method for developing fishery-independent indices for red drum provided additional effort can be added to nearshore waters (<20 m depth). As with most stocks under harvest bans, effective monitoring of the recovery of red drum will require the development of fishery-independent indices. With limited economic incentive to evaluate non-exploited stocks, the most cost-effective approach to developing such monitoring is expansion of existing fishery independent surveys. We examine this possibility for red drum in the Gulf of Mexico and recommend the bottom longline survey conducted by the National Marine Fisheries Service expand effort in nearshore areas to allow for the development of long-term abundance indices for red drum. Text Red drum Sciaenops ocellatus JagWorks@USA (University of South Alabama Institutional Repository) |
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Open Polar |
collection |
JagWorks@USA (University of South Alabama Institutional Repository) |
op_collection_id |
ftunsouthalabama |
language |
unknown |
topic |
Animal Sciences Aquaculture and Fisheries Bioinformatics Data Science Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology |
spellingShingle |
Animal Sciences Aquaculture and Fisheries Bioinformatics Data Science Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology Powers, Sean P. Hightower, Crystal Drymon, J. Marcus Johnson, Matthew W. Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
topic_facet |
Animal Sciences Aquaculture and Fisheries Bioinformatics Data Science Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources and Conservation Natural Resources Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology |
description |
Because of a lack of fishery- dependent data, assessment of the recovery of fish stocks that undergo the most aggressive form of management, namely harvest moratoriums, remains a challenge. Large schools of red drum (Sclaenops ocellatus) were common along the northern Gulf of Mexico until the late 1980s when increased fishing effort quickly depleted the stock. After 24 years of harvest moratorium on red drum in federal waters, the stock is in need of reassessment; however, fishery dependent data are not available in federal waters and fishery-independent data are limited. We document the distribution, age composition, growth, and condition of red drum in coastal waters of the north central Gulf of Mexico, using data collected from a nearshore, randomized, bottom longline survey. Age composition of the fishery-independent catch indicates low mortality offish age 6 and above and confirms the effectiveness of the federal fishing moratorium. Bottom longline surveys may be a cost-effective method for developing fishery-independent indices for red drum provided additional effort can be added to nearshore waters (<20 m depth). As with most stocks under harvest bans, effective monitoring of the recovery of red drum will require the development of fishery-independent indices. With limited economic incentive to evaluate non-exploited stocks, the most cost-effective approach to developing such monitoring is expansion of existing fishery independent surveys. We examine this possibility for red drum in the Gulf of Mexico and recommend the bottom longline survey conducted by the National Marine Fisheries Service expand effort in nearshore areas to allow for the development of long-term abundance indices for red drum. |
format |
Text |
author |
Powers, Sean P. Hightower, Crystal Drymon, J. Marcus Johnson, Matthew W. |
author_facet |
Powers, Sean P. Hightower, Crystal Drymon, J. Marcus Johnson, Matthew W. |
author_sort |
Powers, Sean P. |
title |
Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
title_short |
Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
title_full |
Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
title_fullStr |
Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
title_full_unstemmed |
Age Composition and Distribution of Red Drum (Sciaenops ocellatus) in Offshore Waters of the North Central Gulf of Mexico: An Evaluation of a Stock Under a Federal Harvest Moratorium |
title_sort |
age composition and distribution of red drum (sciaenops ocellatus) in offshore waters of the north central gulf of mexico: an evaluation of a stock under a federal harvest moratorium |
publisher |
JagWorks@USA |
publishDate |
2012 |
url |
https://jagworks.southalabama.edu/usa_faculty_staff_pubs/70 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1082&context=usa_faculty_staff_pubs |
genre |
Red drum Sciaenops ocellatus |
genre_facet |
Red drum Sciaenops ocellatus |
op_source |
University Faculty and Staff Publications |
op_relation |
https://jagworks.southalabama.edu/usa_faculty_staff_pubs/70 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1082&context=usa_faculty_staff_pubs |
_version_ |
1766177438213079040 |