Survival of Pelagic Juvenile Loggerhead Turtles in the Open Ocean
We deployed pop-up archival transmitting tags on 15 loggerhead sea turtles (Caretta caretta) that had been lightly hooked in the United States pelagic longline fishery and on 10 loggerheads that we dip-netted off the surface to serve as controls in the North Atlantic Ocean. We received data from tag...
| Published in: | Journal of Wildlife Management |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
Zenodo
2007
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| Subjects: | |
| Online Access: | https://doi.org/10.2193/2006-448 |
| Summary: | We deployed pop-up archival transmitting tags on 15 loggerhead sea turtles (Caretta caretta) that had been lightly hooked in the United States pelagic longline fishery and on 10 loggerheads that we dip-netted off the surface to serve as controls in the North Atlantic Ocean. We received data from tags of 10 lightly hooked turtles and 7 control turtles. We used data transmitted by the tags in a known-fate model to estimate annual survival rates and determine if there were differences in survival between the 2 groups. The best model indicates there is no difference in survival between the lightly hooked and control turtles, and the estimated annual survival rate was 0.814 (95% CI = 0.557–0.939). Our results suggest that when all fishing gear is removed lightly hooked turtles may not suffer any additional mortality relative to control turtles. |
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