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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Spatio-temporal variability among loggerhead turtle, Caretta caretta, strandings off southern Brazil
ICES journal of marine science, Vol.81(10), pp.2016-2027
25/10/2024
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Abstract
Since 2015, Brazilian legislation governing resource extraction in the Santos Basin has required daily monitoring of beaches (similar to 1490 km) in Rio de Janeiro (RJ), S & atilde;o Paulo (SP), Paran & aacute; (PR), and Santa Catarina (SC) for fauna strandings. All stranded specimens are necropsied or rehabilitated. Here, we investigate spatio-temporal variability among 5169 loggerhead turtles, Caretta caretta, stranded between 2015 and 2022, and discuss regional management implications. Weekly stranding rates among states ranged between 0.03 (RJ) and 0.54 (PR) C. caretta 100 km-1 and peaked during winter and spring-coinciding with concentrated regional penaeid-trawl effort. Almost all (99%) stranded C. caretta were dead and had advanced decomposition. Overall, there were biases towards female C. caretta (2:1), that increased during summer, and juveniles (2.2:1) across all states, especially in Paran & aacute;-encompassing an ecologically important and World Heritage-listed estuarine complex. Identified anthropogenic impacts among stranded C. caretta were low overall (14%) but biased towards fishing (8%) and greatest during winter and spring. Few (similar to 4%) C. caretta had ingested plastic or were entangled in marine debris. The data support prioritising the jurisdictional management of impacts across SP, PR, and SC during winter and spring, and in the presence of intensified regional trawling effort.
Details
- Title
- Spatio-temporal variability among loggerhead turtle, Caretta caretta, strandings off southern Brazil
- Creators
- Gabriel Fraga da Fonseca - Universidade Federal do ParanáMatt K. Broadhurst - Universidade Federal do ParanáTawane Yara Nunes - Universidade Federal do ParanáMaikon Di Domenico - Universidade Federal do ParanáMauricio Cantor - Universidade Federal do ParanáCamila Domit - Universidade Federal do Paraná
- Publication Details
- ICES journal of marine science, Vol.81(10), pp.2016-2027
- Publisher
- Oxford University Press
- Number of pages
- 12
- Grant note
- Marine Mammal Research Program Fund at Oregon State University 001 / Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES); Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) 316593/2023%-0 / Brazilian National Council for Scientific and Technological Development (CNPq-Brasil); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ); Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF)
- Identifiers
- 991013246960502368
- Copyright
- © The Author(s) 2024. Published by Oxford University Press on behalf of International Council for the Exploration of the Sea. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( https:// creativecommons.org/ licenses/ by/ 4.0/ ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article