Spatial and temporal variation in fish community of the Ria de Aveiro estuarine lagoon (Portugal).

Abstract

Event Abstract Back to Event Spatial and temporal variation in fish community of the Ria de Aveiro estuarine lagoon (Portugal). Eva García-Seoane1*, Ana Abreu1, Cátia L. Silva1 and José E. Rebelo1 1 University of Aveiro, Department of Biology, Portugal Fish assemblages of Ria de Aveiro coastal lagoon (Northwest Portugal) were studied from February 2012 and January 2013. Sampling were monthly conducted with a traditional beach-seine net (“chincha”) at 9 sites. Multivariate approach were used in order to analyse the spatial and temporal variation in fish community. A total of 58,201 fishes, weighting 249,540 g, were identified, representing 37 taxa and 21 families. Four taxa (Atherina spp., Dicentrarchus labrax, Liza spp., and Sardina pilchardus) were responsible for 94.7% and 85.4% of the total abundance, in number and weight. There were significant differences in fish community, in terms of fish number and weight, between sites and between months (ANOSIM, p<0.01). A total of 12 species appeared as characteristics of one of more sampling sites either in terms of number and weight. In both cases, D. labrax, Liza spp. and Atherina spp. were typical throughout the study area. Other species, such as Spondyliosoma cantharus appeared as typical only in the part of the lagoon more influenced by marine waters, whereas Anguilla anguilla was typical of the inner area. A total of 11 (in number) or 13 (in weight) species appeared as typical of at least one month of the year. Liza spp. and Atherina spp. were typical all the year round for number and weight data. In both cases, D. labrax, Diplodus spp. and S. pilchardus, appeared as a typical from spring to autumn. The number of typical species varied with the season, being maximum in May and minimum in winter. Finally, results of this work were discussed in comparison to previous studies. Acknowledgements We thank the fishermen’s association APARA, all the local fishermen, and the colleagues who assisted in the field sampling. The authors are grateful V. Quintino for providing access to the PRIMER software. This work was supported by “Grupo de Ação Costeira da Região de Aveiro” (GAC-RA) through the projects “Enguias na Ria de Aveiro, um ex-líbris a preservar: biologia, sanidade e pesca” and “Promoção dos Recursos Endógenos da Ria: Conhecer, Usufruir e Preservar”. Keywords: Coastal lagoon, fish assemblage, Portugal, Ria de Aveiro, spatial variations, Seasonal variations. Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Oral Presentation Topic: Ecology, Conservation and Invasive Species Citation: García-Seoane E, Abreu A, Silva CL and Rebelo JE (2015). Spatial and temporal variation in fish community of the Ria de Aveiro estuarine lagoon (Portugal).. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00095 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: 20 Nov 2015; Published Online: 21 Nov 2015. * Correspondence: Dr. Eva García-Seoane, University of Aveiro, Department of Biology, Aveiro, 3810-193, Portugal, eva.garcia.seoane@hi.no 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 Eva García-Seoane Ana Abreu Cátia L Silva José E Rebelo Google Eva García-Seoane Ana Abreu Cátia L Silva José E Rebelo Google Scholar Eva García-Seoane Ana Abreu Cátia L Silva José E Rebelo PubMed Eva García-Seoane Ana Abreu Cátia L Silva José E Rebelo 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.