Parasitism by isopods in sandy beach fish assemblages: role of urbanization and environmental characteristics

Autor(es)

Esmaeili, Yasmina Shah ^{[1, 2]} ; Checon, Helio H. ^{[2, 3]} ; Corte, Guilherme N. ^{[2, 3, 4]} ; Turra, Alexander ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, Programa Posgrad Ecol, BR-13083862 Campinas, SP - Brazil

^[2] Univ Sao Paulo, Inst Oceanog, BR-05508120 Sao Paulo, SP - Brazil

^[3] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, BR-13083862 Campinas, SP - Brazil

^[4] Univ Vale Itajai, Escola Mar Ciencia & Tecnol, Rua Uruguai 458, BR-88302901 Itajai, SC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Hydrobiologia; v. 848, n. 20 AUG 2021.
• Citações Web of Science: 0

Resumo

Parasitism by isopods is a common phenomenon in marine fishes and may induce negative effects, especially in juvenile stages. The surf-zones of sandy beaches are an important nursery habitat for many fish species, including commercially important ones, and are structured by beach characteristics and human activities, which are suggested to influence the fishes' susceptibility to parasitism. Here, we analyze the early infestation and prevalence of parasitism in surf zones fishes of 27 beaches in southeastern Brazil with different characteristics. Parasites were recorded in only seven of the beaches. A high infestation was found in a single site, the highly urbanized Itagua beach, where the prevalence of parasitism on juveniles and early adults of the Atlantic anchoveta Cetengraulis edentulus was high (68.11%). Four species of parasitic isopods were found, all belonging to the Cymothoidae family, but Livoneca desterroensis was the most abundant (78.7%). No effects of parasitism were detected on the size, weight and physiological condition of fishes, but presence of parasites and prevalence of infestation were positively affected by urbanization. Overall, our results indicate that the surf-zones have low parasite infestation, yet, they suggest that anthropic effects such as urbanization may enhance the prevalence of isopod parasitism. (AU)

• Processo FAPESP: 18/22036-0 - Avaliação do potencial de diferentes índices bentônicos para determiner a integridade ecólogica de praias arenosas: subsídios para práticas de manejo e monitoramento
• Beneficiário: Hélio Hermínio Checon
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 18/19776-2 - Promovendo o planejamento espacial e conservação de praias por meio de uma abordagem ecossistêmica
• Beneficiário: Alexander Turra
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 15/03804-9 - Governança ambiental da macrometrópole paulista face à variabilidade climática
• Beneficiário: Pedro Roberto Jacobi
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 17/17071-9 - Preservando praias arenosas: biodiversidade, bens e serviços e impactos em um ecossistema negligenciado
• Beneficiário: Guilherme Nascimento Corte
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado