Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal
Although catch-and-release fishing tournaments undoubtedly reduce mortality of target species, postrelease mortality and fish stockpiling at release sites remain common concerns related to these tournaments. The impacts of liverelease tournaments on freshwater species have been widely studied. Howev...
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ftunsouthalabama:oai:jagworks.southalabama.edu:usa_faculty_staff_pubs-1079 2023-05-15T18:06:00+02:00 Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal Nelson, T. Reid Hightower, Crystal Powers, Sean P. 2021-01-01T08:00:00Z application/pdf https://jagworks.southalabama.edu/usa_faculty_staff_pubs/73 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1079&context=usa_faculty_staff_pubs unknown JagWorks@USA https://jagworks.southalabama.edu/usa_faculty_staff_pubs/73 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1079&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 Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology text 2021 ftunsouthalabama 2022-11-03T18:44:40Z Although catch-and-release fishing tournaments undoubtedly reduce mortality of target species, postrelease mortality and fish stockpiling at release sites remain common concerns related to these tournaments. The impacts of liverelease tournaments on freshwater species have been widely studied. However, research on estuarine sport fishes is lacking even though catch-and-release tournaments targeting these species are prevalent and popular recreational fisheries exist. Therefore, we estimated the post-weigh-in mortality and dispersal of Red Drum Sciaenops ocellatus and Spotted Seatrout Cynoscion nebulosus released from the 2016–2018 Alabama Deep Sea Fishing Rodeo live-weigh-in categories using acoustic telemetry. To concurrently estimate overall post-weigh-in mortality and dispersal, we used a Bayesian multistate model. Overall Red Drum post-weigh-in mortality (median = 6.12%; posterior credible interval [CrI] = 5.67–9.24%) was lower than overall Spotted Seatrout mortality (median = 30.63%; CrI = 26.74–40.00%). These estimates were within reported catch-and-release mortality ranges; however, they were higher than recent estimates for Spotted Seatrout. Within 1 week postrelease, Spotted Seatrout dispersal estimates (median = 87.03%; CrI = 72.96–95.72%) were higher than Red Drum (median = 55.62%; CrI = 42.75–68.10%) or Micropterus spp. in coastal and inland ecosystems. Long-term stockpiling at the release site was also not present; at the end of our 8-week observation period, median dispersal estimates were 94.41% (CrI = 87.15–98.19%) and 98.54% (CrI = 93.68–99.82%) for Red Drum and Spotted Seatrout, respectively. Red Drum fisheries may benefit most from live-release tournaments given that maximum mortality was <10%, but Spotted Seatrout fisheries may also benefit, especially if considerations are made to further reduce tournament mortality. Although we do not know the ratio of tournament mortality to recreational harvest for these species, live-release tournaments may be able to relieve some harvest pressure on ... Text Red drum Sciaenops ocellatus JagWorks@USA (University of South Alabama Institutional Repository) Alabama |
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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 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 Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology Nelson, T. Reid Hightower, Crystal Powers, Sean P. Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
topic_facet |
Animal Sciences Aquaculture and Fisheries Bioinformatics Data Science Ecology and Evolutionary Biology Environmental Sciences Life Sciences Marine Biology Natural Resources Management and Policy Physical Sciences and Mathematics Population Biology Research Methods in Life Sciences Terrestrial and Aquatic Ecology |
description |
Although catch-and-release fishing tournaments undoubtedly reduce mortality of target species, postrelease mortality and fish stockpiling at release sites remain common concerns related to these tournaments. The impacts of liverelease tournaments on freshwater species have been widely studied. However, research on estuarine sport fishes is lacking even though catch-and-release tournaments targeting these species are prevalent and popular recreational fisheries exist. Therefore, we estimated the post-weigh-in mortality and dispersal of Red Drum Sciaenops ocellatus and Spotted Seatrout Cynoscion nebulosus released from the 2016–2018 Alabama Deep Sea Fishing Rodeo live-weigh-in categories using acoustic telemetry. To concurrently estimate overall post-weigh-in mortality and dispersal, we used a Bayesian multistate model. Overall Red Drum post-weigh-in mortality (median = 6.12%; posterior credible interval [CrI] = 5.67–9.24%) was lower than overall Spotted Seatrout mortality (median = 30.63%; CrI = 26.74–40.00%). These estimates were within reported catch-and-release mortality ranges; however, they were higher than recent estimates for Spotted Seatrout. Within 1 week postrelease, Spotted Seatrout dispersal estimates (median = 87.03%; CrI = 72.96–95.72%) were higher than Red Drum (median = 55.62%; CrI = 42.75–68.10%) or Micropterus spp. in coastal and inland ecosystems. Long-term stockpiling at the release site was also not present; at the end of our 8-week observation period, median dispersal estimates were 94.41% (CrI = 87.15–98.19%) and 98.54% (CrI = 93.68–99.82%) for Red Drum and Spotted Seatrout, respectively. Red Drum fisheries may benefit most from live-release tournaments given that maximum mortality was <10%, but Spotted Seatrout fisheries may also benefit, especially if considerations are made to further reduce tournament mortality. Although we do not know the ratio of tournament mortality to recreational harvest for these species, live-release tournaments may be able to relieve some harvest pressure on ... |
format |
Text |
author |
Nelson, T. Reid Hightower, Crystal Powers, Sean P. |
author_facet |
Nelson, T. Reid Hightower, Crystal Powers, Sean P. |
author_sort |
Nelson, T. Reid |
title |
Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
title_short |
Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
title_full |
Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
title_fullStr |
Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
title_full_unstemmed |
Red Drum and Spotted Seatrout Live-Release Tournament Mortality and Dispersal |
title_sort |
red drum and spotted seatrout live-release tournament mortality and dispersal |
publisher |
JagWorks@USA |
publishDate |
2021 |
url |
https://jagworks.southalabama.edu/usa_faculty_staff_pubs/73 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1079&context=usa_faculty_staff_pubs |
geographic |
Alabama |
geographic_facet |
Alabama |
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/73 https://jagworks.southalabama.edu/cgi/viewcontent.cgi?article=1079&context=usa_faculty_staff_pubs |
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