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New insights about the habitat use and movement pattern of Centropomus parallelus (Centropomidae) adults in the coast of Paraná, SW Brasil

2016; Frontiers Media; Volume: 3; Linguagem: Inglês

10.3389/conf.fmars.2016.05.00059

2296-7745

Previate Isabela, Daros Felippe, Spach Henry, Correia Alberto,

Marine and fisheries research

Event Abstract Back to Event New insights about the habitat use and movement pattern of Centropomus parallelus (Centropomidae) adults in the coast of Paraná, SW Brasil Isabela Previate1*, Felippe Daros1, 2, Henry L. Spach1 and Alberto T. Correia1, 2, 3 1 Universidade Federal do Paraná, Brazil 2 Centro Interdisciplinar de Investigação Marinha e Ambiental, Portugal 3 Faculdade de Ciências da Saúde da Universidade Fernando Pessoa, Portugal The fat snook (Centropomus parallelus) is considered an important recreational and commercial amphidromous fish species. A recent study demonstrated that the early juveniles of this species can live in differently salinity environments throughout their lifecycle showing a high environmental plasticity and adaptation. Since understanding of migratory patterns and habitat use by individuals are essential in the context of taking appropriate measures for the conservation and rational management of a species, it must be determined if the adults of this species, commercially exploited, have the same observed environmental plasticity. With this purpose ninety C. parallelus adults were collected between October 2015 and March 2016 using a fishing rod in Paranaguá Estuarine Complex, State of Paraná, South of Brazil. Three sampling sites were selected according to a known salinity gradient: Cachoeira River (oligohaline environment), Faisqueira River (mesohaline environment) and Ponta do Poço (polyhaline environment). The movement patterns were inferred from Sr:Ca and Ba:Ca concentrations recorded along the otoliths radius using a electron micro probe analyzer. The age of the individuals was estimated from the reading of the annual growth rings of otoliths. The data suggest eight different migration patterns that show a high plasticity and environmental adaptation to different salinity gradients. Furthermore, the data also show that almost migratory patterns include estuaries as an occupation area, suggesting the importance of these areas for the species, presumably due to the availability of food and lower predation pressure. Therefore the conservation of this species requires the preservation of freshwater and marine environments, but mainly estuaries, which allows the connectivity between habitats. Acknowledgements This study was partially funded by the Brazilian Council of Research (CNPq, Proposal 401190/2014-5). Also a special thanks to CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior), an organ of the Brazilian Government for the training of human resources, for the scholarships granted to the MSc student. A special acknowledge to Miran Bábic for the valuable help in the preparation of the otolith samples for the microchemistry. Keywords: Otolith microchemistry, Fat snook, Fish migration, Fish aged, Conservation of Natural Resources Conference: XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016. Presentation Type: Oral Presentation Topic: 1. ECOLOGY, BIODIVERSITY AND VULNERABLE ECOSYSTEMS Citation: Previate I, Daros F, Spach HL and Correia AT (2016). New insights about the habitat use and movement pattern of Centropomus parallelus (Centropomidae) adults in the coast of Paraná, SW Brasil. Front. Mar. Sci. Conference Abstract: XIX Iberian Symposium on Marine Biology Studies. doi: 10.3389/conf.FMARS.2016.05.00059 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 30 Apr 2016; Published Online: 02 Sep 2016. * Correspondence: Miss. Isabela Previate, Universidade Federal do Paraná, Curitiba, Brazil, isapreviate@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Isabela Previate Felippe Daros Henry L Spach Alberto T Correia Google Isabela Previate Felippe Daros Henry L Spach Alberto T Correia Google Scholar Isabela Previate Felippe Daros Henry L Spach Alberto T Correia PubMed Isabela Previate Felippe Daros Henry L Spach Alberto T Correia Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.