Contribution of the nursery areas to the main fishery ground of the Brazilian sardine (Sardinella brasiliensis) in Southeastern Brazilian Bight through otolith fingerprinting

Abstract

Event Abstract Back to Event Contribution of the nursery areas to the main fishery ground of the Brazilian sardine (Sardinella brasiliensis) in Southeastern Brazilian Bight through otolith fingerprinting Inês Ferreira1, 2, Paulo Schwingel3, André M. Vaz Dos Santos4, Paul Hamer5 and Alberto T. Correia1, 2, 4* 1 Universidade Fernando Pessoa (UFP), Portugal 2 Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Portugal 3 Universidade do Vale de Itajaí (UNIVALI), Brazil 4 Universidade Federal do Paraná (UFPR), Brazil 5 Primary Industries, Australia In the wider context of marine conservation and fisheries management, the current research aims to provide the knowledge baseline that will fill the gap on the status of an ecologically and fish along the Brazilian southern coast, the Brazilian sardine (Sardinella brasiliensis). This species can be found along the continental shelf of the Southeastern Brazilian Bight, the area between Cape São Tomé (22°S) and a little further south of Cape Santa Marta Grande (28°30’S). It is one of the major commercial pelagic species in the country, supporting important fisheries in the South and Southeast of the Brazilian coast involving industrial fleets based in the States of Rio de Janeiro, São Paulo, Santa Catarina and Rio Grande do Sul. However, despite the importance of this species, information about sardine movements and connectivity between their main juvenile recruitment areas and the adult fishing grounds is currently scarce. The small size of the fish larvae and the oceanographic conditions under which dispersal takes place make direct monitoring almost impossible. Assessing the population structure of this species by specifically linking the contribution of the nursery areas to the adjacent coastal areas, which work as fishery grounds, is important for the effective management and conservation of the species. To this end, otolith elemental fingerprints (core analysis) of young of the year (ages 0+) and adults (age 3+) collected along its three main spawning areas in the Brazilian coast (descending order of importance: 26°-28°S, 24°-25°S and 22°-23°S, respectively) ) were used to demonstrate regional population structure by comparing the elemental signatures of recruits with the ones from adult fish of the same cohort to estimate connectivity between juvenile recruitment areas and regional adult populations. The obtained data represent an important knowledge to achieve a sustainable and rational fisheries management for the Brazilian sardine. Acknowledgements Research grant CNPq 305403/2015-0 Keywords: pelagic fish, Fisheries, Sagitta, Microchemistry, Rational management Conference: XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016. Presentation Type: Poster Presentation Topic: 4. FISHERIES, AQUACULTURE AND BIOTECHNOLOGY Citation: Ferreira I, Schwingel P, Vaz Dos Santos AM, Hamer P and Correia AT (2016). Contribution of the nursery areas to the main fishery ground of the Brazilian sardine (Sardinella brasiliensis) in Southeastern Brazilian Bight through otolith fingerprinting. Front. Mar. Sci. Conference Abstract: XIX Iberian Symposium on Marine Biology Studies. doi: 10.3389/conf.FMARS.2016.05.00200 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: 12 May 2016; Published Online: 03 Sep 2016. * Correspondence: Prof. Alberto T Correia, Universidade Fernando Pessoa (UFP), Porto, Portugal, atcorreia.ciimar@gmail.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 Inês Ferreira Paulo Schwingel André M Vaz Dos Santos Paul Hamer Alberto T Correia Google Inês Ferreira Paulo Schwingel André M Vaz Dos Santos Paul Hamer Alberto T Correia Google Scholar Inês Ferreira Paulo Schwingel André M Vaz Dos Santos Paul Hamer Alberto T Correia PubMed Inês Ferreira Paulo Schwingel André M Vaz Dos Santos Paul Hamer 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.