New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico
Highly mobile apex predators such as the shortfin mako shark (mako shark; Isurus oxyrinchus) serve an important role in the marine ecosystem, and despite their declining populations and vulnerability to overexploitation, this species is frequently harvested in high abundance in both commercial and r...
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fttexasamucorpus:oai:tamucc-ir.tdl.org:1969.6/89432 2023-10-25T01:41:22+02:00 New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico Gibson, Kesley J. Streich, Matthew K. Topping, Tara S. Stunz, Gregory W. 2021-01-26 application/pdf https://hdl.handle.net/1969.6/89432 https://doi.org/10.3389/fmars.2021.623104 unknown Frontiers in Marine Science Gibson, K.J., Streich, M.K., Topping, T.S. and Stunz, G.W. 2021. New Insights into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico. Front. Mar. Sci. 8:623104. doi:10.3389/fmars.2021.623104 https://hdl.handle.net/1969.6/89432 https://doi.org/10.3389/fmars.2021.623104 Article 2021 fttexasamucorpus https://doi.org/10.3389/fmars.2021.623104 2023-09-25T10:26:48Z Highly mobile apex predators such as the shortfin mako shark (mako shark; Isurus oxyrinchus) serve an important role in the marine ecosystem, and despite their declining populations and vulnerability to overexploitation, this species is frequently harvested in high abundance in both commercial and recreational fisheries. In 2017, the North Atlantic stock was deemed overfished and to be undergoing overfishing and was recently listed in CITES Appendix II. Effective management of this species can benefit from detailed information on their movements and habitat use, which is lacking, especially in the Gulf of Mexico, a potential mating and parturition ground. In this study, we used satellite telemetry to track the movements of mako sharks in the western Gulf of Mexico between 2016 and 2020. In contrast to previous studies that have primarily tagged juvenile mako sharks (>80% juveniles), ∼80% of sharks tagged in this study (7 of 9) were presumed to be mature based on published size-at-maturity data. Sharks were tracked for durations ranging from 10 to 887 days (mean = 359 days; median = 239 days) with three mature individuals tracked for >2 years. Mako sharks tagged in this study used more of the northwestern Gulf of Mexico than reported in previous movement studies on juveniles, suggesting potential evidence of size segregation. While one mature female remained in the Gulf of Mexico over a >2-year period, predominantly on the continental shelf, two mature males demonstrated seasonal migrations ∼2,500 km from the tagging location off the Texas coast to the Caribbean Sea and northeastern United States Atlantic coast, respectively. During these migrations, mako sharks traversed at least 12 jurisdictional boundaries, which also exposed individuals to varying levels of fishing pressure and harvest regulations. Movement ecology of this species, especially for mature individuals in the western North Atlantic, has been largely unknown until recently. These data included here supplement existing information on mako ... Article in Journal/Newspaper North Atlantic Texas A&M University - Corpus Christi: DSpace Repository Frontiers in Marine Science 8 |
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Open Polar |
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Texas A&M University - Corpus Christi: DSpace Repository |
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fttexasamucorpus |
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unknown |
description |
Highly mobile apex predators such as the shortfin mako shark (mako shark; Isurus oxyrinchus) serve an important role in the marine ecosystem, and despite their declining populations and vulnerability to overexploitation, this species is frequently harvested in high abundance in both commercial and recreational fisheries. In 2017, the North Atlantic stock was deemed overfished and to be undergoing overfishing and was recently listed in CITES Appendix II. Effective management of this species can benefit from detailed information on their movements and habitat use, which is lacking, especially in the Gulf of Mexico, a potential mating and parturition ground. In this study, we used satellite telemetry to track the movements of mako sharks in the western Gulf of Mexico between 2016 and 2020. In contrast to previous studies that have primarily tagged juvenile mako sharks (>80% juveniles), ∼80% of sharks tagged in this study (7 of 9) were presumed to be mature based on published size-at-maturity data. Sharks were tracked for durations ranging from 10 to 887 days (mean = 359 days; median = 239 days) with three mature individuals tracked for >2 years. Mako sharks tagged in this study used more of the northwestern Gulf of Mexico than reported in previous movement studies on juveniles, suggesting potential evidence of size segregation. While one mature female remained in the Gulf of Mexico over a >2-year period, predominantly on the continental shelf, two mature males demonstrated seasonal migrations ∼2,500 km from the tagging location off the Texas coast to the Caribbean Sea and northeastern United States Atlantic coast, respectively. During these migrations, mako sharks traversed at least 12 jurisdictional boundaries, which also exposed individuals to varying levels of fishing pressure and harvest regulations. Movement ecology of this species, especially for mature individuals in the western North Atlantic, has been largely unknown until recently. These data included here supplement existing information on mako ... |
format |
Article in Journal/Newspaper |
author |
Gibson, Kesley J. Streich, Matthew K. Topping, Tara S. Stunz, Gregory W. |
spellingShingle |
Gibson, Kesley J. Streich, Matthew K. Topping, Tara S. Stunz, Gregory W. New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
author_facet |
Gibson, Kesley J. Streich, Matthew K. Topping, Tara S. Stunz, Gregory W. |
author_sort |
Gibson, Kesley J. |
title |
New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
title_short |
New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
title_full |
New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
title_fullStr |
New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
title_full_unstemmed |
New Insights Into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico |
title_sort |
new insights into the seasonal movement patterns of shortfin mako sharks in the gulf of mexico |
publisher |
Frontiers in Marine Science |
publishDate |
2021 |
url |
https://hdl.handle.net/1969.6/89432 https://doi.org/10.3389/fmars.2021.623104 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Gibson, K.J., Streich, M.K., Topping, T.S. and Stunz, G.W. 2021. New Insights into the Seasonal Movement Patterns of Shortfin Mako Sharks in the Gulf of Mexico. Front. Mar. Sci. 8:623104. doi:10.3389/fmars.2021.623104 https://hdl.handle.net/1969.6/89432 https://doi.org/10.3389/fmars.2021.623104 |
op_doi |
https://doi.org/10.3389/fmars.2021.623104 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
_version_ |
1780737453268664320 |