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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Esmaeili, Yasmina Shah [1, 2] ; Checon, Helio H. [2, 3] ; Corte, Guilherme N. [2, 3, 4] ; Turra, Alexander [2]
Total Authors: 4
Affiliation:
[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
Total Affiliations: 4
Document type: Journal article
Source: Hydrobiologia; v. 848, n. 20 AUG 2021.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 18/22036-0 - Evaluating the potential of different benthic indicators to assess sandy beach ecological integrity: subsides for management and monitoring practices
Grantee:Hélio Hermínio Checon
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/19776-2 - Fostering the ecosystem-based approach in beach spatial planning and conservation
Grantee:Alexander Turra
Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants
FAPESP's process: 15/03804-9 - Environmental governance of macrometropolis paulista in face of climate variability
Grantee:Pedro Roberto Jacobi
Support Opportunities: Research Program on Global Climate Change - Thematic Grants
FAPESP's process: 17/17071-9 - Preserving sandy beaches: biodiversity, goods and services, and impacts on a neglected ecosystem
Grantee:Guilherme Nascimento Corte
Support Opportunities: Scholarships in Brazil - Post-Doctoral