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Rocky reef fish assemblage structure in coastal islands of Southern Brazil

2015; Frontiers Media; Volume: 2; Linguagem: Inglês

10.3389/conf.fmars.2015.03.00041

2296-7745

Daros Felippe, Bueno Leonardo, Soeth Marcelo, Áthila Andrade Bertoncini, Hostim-Silva Mauricio, Correia Alberto, Spach Henry,

Coastal and Marine Management

Event Abstract Back to Event Rocky reef fish assemblage structure in coastal islands of Southern Brazil Felippe A. Daros1*, Leonardo S. Bueno2, Marcelo Soeth3, Athila A. Bertoncini4, Mauricio Hostim-Silva5, Alberto T. Correia6, 7 and Henry L. Spach1 1 Universidade Federal do Paraná, Centro de Estudos do Mar, Brazil 2 Instituto de Conservação Marinha do Brasil (COMAR), Brazil 3 Universidade Federal do Paraná, Centro de Estudos do Mar, Brazil 4 Universidade Federal do Estado do Rio de Janeiro, Brazil 5 Universidade Federal do Espirito Santo, Brazil 6 Centro Interdisciplinar de Investigação Marinha e Ambiental, Portugal 7 Universidade Fernando Pessoa, Portugal Rocky reef fish assemblage structure in seven coastal islands of Southern Brazil was characterized by underwater visual census (20 m x 2 m transect method 40 m2), average depth of six meters, to obtain density (fish/40 m2) and biomass (grams/40 m2). Fish species were categorized according to their trophic category and geographical distribution. In total, 526 strip transects were performed, covering an area of 21,040 m2, totaling 19,377 individuals (means of 36.83 fish/40 m2 and 1,790.23 g/40 m2), distributed among 73 species from 34 families. Among these, 60% of the species occur in the western Atlantic, 20% are transatlantic and 9.60% occur only in the Brazilian Province. The species Stegastes fuscus was the most frequent and with highest density. Acanthurus chirurgus showed the highest biomass, followed by S. fuscus. Itacolomis Island presented the highest density, 48.18 fish/40 m2, followed by Veado Island with 43 fish/40 m2. Regarding biomass, Itacolomis Island and Pedra da Baleia were the most representative with mean values of 3,253 and 3,028 g/40 m2, respectively. Mobile invertebrate predator was the trophic category with the highest density, represented by 26% of species registered, also having the highest density (12.57 fish/40 m2). Mobile invertebrate showed the highest biomass (780.48 g/40 m2). Our results indicated that despite the similarity in taxonomic composition between islands, there are differences in density and biomass, highlighting singular assemblage structures, whether by environmental and/or anthropogenic factors, and dominated by few species, both in density and biomass. Image 1 Acknowledgements Daros F.A. is benefited from a Pós-doctoral Fellowship (CNPq / PDJ - 167318/2014-9) and Correia A.T. benefited from a Special Visiting Research Fellowship (CNPq / PVE - 314444/2014-9). Keywords: density, biomass, Underwater visual census, Trophic category, Taxonomic distinctness Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Poster Presentation Topic: Ecology, Conservation and Invasive Species Citation: Daros FA, Bueno LS, Soeth M, Bertoncini AA, Hostim-Silva M, Correia AT and Spach HL (2015). Rocky reef fish assemblage structure in coastal islands of Southern Brazil. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00041 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: 09 Nov 2015; Published Online: 09 Nov 2015. * Correspondence: Dr. Felippe A Daros, Universidade Federal do Paraná, Centro de Estudos do Mar, Pontal do Paraná, PR, Brazil, felippe.daros@unesp.br 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 Felippe A Daros Leonardo S Bueno Marcelo Soeth Athila A Bertoncini Mauricio Hostim-Silva Alberto T Correia Henry L Spach Google Felippe A Daros Leonardo S Bueno Marcelo Soeth Athila A Bertoncini Mauricio Hostim-Silva Alberto T Correia Henry L Spach Google Scholar Felippe A Daros Leonardo S Bueno Marcelo Soeth Athila A Bertoncini Mauricio Hostim-Silva Alberto T Correia Henry L Spach PubMed Felippe A Daros Leonardo S Bueno Marcelo Soeth Athila A Bertoncini Mauricio Hostim-Silva Alberto T Correia Henry L Spach 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.