Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries.
The practice of catch and release fishing is common among anglers but has been shown to cause unintended mortalities in some species. Current post-release mortality estimates used in coastal shark stock assessments are typically derived from boat-based shark fisheries, which differ from shore-based...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0281441 |
| _version_ | 1828012539578941440 |
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| author | Addie L Binstock Travis M Richards R J David Wells J Marcus Drymon Kesley Gibson-Banks Matthew K Streich Gregory W Stunz Connor F White Nicholas M Whitney John A Mohan |
| author_facet | Addie L Binstock Travis M Richards R J David Wells J Marcus Drymon Kesley Gibson-Banks Matthew K Streich Gregory W Stunz Connor F White Nicholas M Whitney John A Mohan |
| author_sort | Addie L Binstock |
| collection | DOAJ |
| description | The practice of catch and release fishing is common among anglers but has been shown to cause unintended mortalities in some species. Current post-release mortality estimates used in coastal shark stock assessments are typically derived from boat-based shark fisheries, which differ from shore-based operations that expose sharks to potentially more stressful environmental and handling conditions. Recreational post-release mortality rates in shore-based fisheries must be quantified to improve stock assessment models and to create guidelines that protect species from overexploitation. Here, we partnered with experienced anglers acting as citizen scientists to deploy pop-up satellite archival transmitting tags (PSAT, n = 22) and acceleration data loggers (ADLs, n = 22). on four commonly caught sharks including the blacktip shark (Carcharhinus limbatus, n = 11), bull shark (Carcharhinus leucas, n = 14), tiger shark (Galeocerdo cuvier, n = 6), and great hammerheads (Sphyrna mokarran, n = 2). Mortality occurred within minutes to hours post-release. If evidence of mortality occurred after normal diving behavior had been re-established for 10 days, then the mortality was considered natural and not related to the catch-and-release process. Post-release mortality estimates ranged from 0% for bull and tiger sharks to 45.5% for blacktip sharks. Of the two great hammerheads, one died within 30 minutes post-release while the other exhibited mortality characteristics 14 days after release. Moribund blacktip sharks experienced on average 3.4-4.9°C warmer water compared with survivors. Recovery periods were estimated for survivors of each species and were highly variable, differing based on duration of tag deployment. High variability in responses to capture and release between species demonstrates the need for species-specific assessments of post-release mortality in shore-based recreational fisheries. |
| first_indexed | 2024-04-10T09:34:20Z |
| format | Article |
| id | doaj.art-824db4f270754c64a32c9224f4cc27fd |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-10T09:34:20Z |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-824db4f270754c64a32c9224f4cc27fd2023-02-18T05:31:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01182e028144110.1371/journal.pone.0281441Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries.Addie L BinstockTravis M RichardsR J David WellsJ Marcus DrymonKesley Gibson-BanksMatthew K StreichGregory W StunzConnor F WhiteNicholas M WhitneyJohn A MohanThe practice of catch and release fishing is common among anglers but has been shown to cause unintended mortalities in some species. Current post-release mortality estimates used in coastal shark stock assessments are typically derived from boat-based shark fisheries, which differ from shore-based operations that expose sharks to potentially more stressful environmental and handling conditions. Recreational post-release mortality rates in shore-based fisheries must be quantified to improve stock assessment models and to create guidelines that protect species from overexploitation. Here, we partnered with experienced anglers acting as citizen scientists to deploy pop-up satellite archival transmitting tags (PSAT, n = 22) and acceleration data loggers (ADLs, n = 22). on four commonly caught sharks including the blacktip shark (Carcharhinus limbatus, n = 11), bull shark (Carcharhinus leucas, n = 14), tiger shark (Galeocerdo cuvier, n = 6), and great hammerheads (Sphyrna mokarran, n = 2). Mortality occurred within minutes to hours post-release. If evidence of mortality occurred after normal diving behavior had been re-established for 10 days, then the mortality was considered natural and not related to the catch-and-release process. Post-release mortality estimates ranged from 0% for bull and tiger sharks to 45.5% for blacktip sharks. Of the two great hammerheads, one died within 30 minutes post-release while the other exhibited mortality characteristics 14 days after release. Moribund blacktip sharks experienced on average 3.4-4.9°C warmer water compared with survivors. Recovery periods were estimated for survivors of each species and were highly variable, differing based on duration of tag deployment. High variability in responses to capture and release between species demonstrates the need for species-specific assessments of post-release mortality in shore-based recreational fisheries.https://doi.org/10.1371/journal.pone.0281441 |
| spellingShingle | Addie L Binstock Travis M Richards R J David Wells J Marcus Drymon Kesley Gibson-Banks Matthew K Streich Gregory W Stunz Connor F White Nicholas M Whitney John A Mohan Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. PLoS ONE |
| title | Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. |
| title_full | Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. |
| title_fullStr | Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. |
| title_full_unstemmed | Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. |
| title_short | Variable post-release mortality in common shark species captured in Texas shore-based recreational fisheries. |
| title_sort | variable post release mortality in common shark species captured in texas shore based recreational fisheries |
| url | https://doi.org/10.1371/journal.pone.0281441 |
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