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RESEARCH ARTICLE

Impact of the socioeconomic activities on sea turtle conservation in the Potiguar Basin, north-eastern Brazil (2010–2019)

Aline da Costa Bomfim https://orcid.org/0000-0003-4678-7534 A B C D * , Daniel Solon Dias de Farias https://orcid.org/0000-0002-5923-8625 A B C D , Flávio José de Lima Silva https://orcid.org/0000-0002-6521-9367 C D E , Silmara Rossi https://orcid.org/0000-0003-0281-7236 B F , Simone Almeida Gavilan https://orcid.org/0000-0003-1163-9822 B C D F , Vinícius Gabriel da Silva Santana https://orcid.org/0000-0002-9474-1189 A C and Cibele Soares Pontes https://orcid.org/0000-0003-1993-0032 A G
+ Author Affiliations
- Author Affiliations

A Programa de Doutorado em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59072-970, Natal, Rio Grande do Norte, Brazil.

B Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Morfologia, Laboratório de Morfofisiologia de Vertebrados. Campus Universitário, Avenida Senador Salgado Filho, 3000, Lagoa Nova, CEP 59078-900, Natal, Rio Grande do Norte, Brazil.

C Projeto Cetáceos da Costa Branca, Universidade do Estado do Rio Grande do Norte, Laboratório de Monitoramento de Biota Marinha, Campus Central, CEP 59600-000, Mossoró, Rio Grande do Norte, Brazil.

D Centro de Estudos e Monitoramento Ambiental, CEP 59655-000, Areia Branca, Rio Grande do Norte, Brazil.

E Universidade do Estado do Rio Grande do Norte, Departamento de Turismo, Campus Natal, Avenue Dr João Medeiros Filho, 3419, Potengi (Zona Norte), CEP 59104-200, Natal, Rio Grande do Norte, Brazil.

F Programa de Pós-graduação em Biologia Estrutural e Funcional, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59072-970, Natal, Rio Grande do Norte, Brazil.

G Universidade Federal do Rio Grande do Norte, Escola Agrícola de Jundiaí, Unidade Acadêmica Especializada em Ciências Agrárias, Campus Macaíba, RN 160, quilômetro 03, Distrito de Jundiaí, Zona Rural, CEP 59280-000, Macaíba, Rio Grande do Norte, Brazil.

* Correspondence to: alinebonfim_7@hotmail.com

Handling Editor: Max Finlayson

Marine and Freshwater Research 73(5) 637-650 https://doi.org/10.1071/MF21246
Submitted: 26 August 2021  Accepted: 8 January 2022   Published: 16 February 2022

© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing.

Abstract

Brazil has a coast that is threatened by economic activities and accelerated urbanisation process, causing ecosystem unbalance and decreasing socioenvironmental quality. We analysed data collected from 2010 to 2019 during the Beach Monitoring Project in north-eastern Brazil to quantify sea turtle strandings with signs of anthropogenic interaction, verify the impact of economic activities on the strandings, and analyse a possible relation between socioeconomic conditions and the strandings. Anthropogenic interaction was classified into 12 categories (eight related to fishing activities). We analysed 6007 strandings, including four sea turtle species and anthropogenic interaction was observed in 12.88% (n = 774) of the strandings. Chelonia mydas represented 94.05% of the total records with anthropogenic interaction and fishing-related strandings accounted for 81.65%. Juvenile individuals were more affected than adults; likewise, females were more affected than males. Icapuí and Areia Branca are very populous municipalities, and showed large number of strandings with signs of anthropogenic interaction. Our analyses revealed that fishing-related strandings were reported throughout the year; however, a larger number of records occurred in the dry season and during the lobster-fishing season. Our study brings knowledge on sea turtle strandings in north-eastern Brazil, providing results that support public policies to mitigate anthropogenic impacts on sea turtles.

Keywords: anthropogenic interaction, Caretta caretta, Chelonia mydas, endangered species, Eretmochelys imbricataLepidochelys olivacea, marine conservation, sea turtle strandings, sustainable development.


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