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Stock structure of the common mora in the mid-North Atlantic (Azores archipelago)

2019; Frontiers Media; Volume: 6; Linguagem: Inglês

10.3389/conf.fmars.2019.08.00179

2296-7745

Régis Santos, Ana Novoa‐Pabon, Wendell Medeiros–Leal, Hélder Silva, Mário Pinho,

Fish Ecology and Management Studies

Event Abstract Back to Event Stock structure of the common mora in the mid-North Atlantic (Azores archipelago) Régis V. Santos1, 2, 3*, Ana M. Novoa-Pabon3, 4, Wendell M. Silva1, 2, 3, Hélder M. Silva1, 2, 3, 4 and Mário R. Pinho1, 2, 3, 4 1 Instituto de Investigação Marinha (IMAR), Portugal 2 Center for Marine and Environmental Sciences (MARE), Portugal 3 OKEANOS Center, University of the Azores, Portugal 4 University of the Azores, Portugal With the spatial expansion of bottom longline fishing effort in the offshore areas of the Azorean Exclusive Economic Zone (EEZ) during the last decades, the common mora (Mora moro) became a commercially exploited resource in the Azores (mid-North Atlantic). It is the most important demersal species caught in deep waters between 700 and 1,200 m. It presents a relatively sedentary behaviour, supporting the possibility of the existence of local populations constituting different management stocks in the Azores. However, it was not possible until now to define if the Azorean component of the population can be considered as a discrete fishery management unit (FMU). The stock structure of this species remains poorly understood in the Azores region. Consequently, there is no analytical assessment for this resource. In this study, we summarized the detailed information on the catch, fork length, weight, sex, and maturity from targeted surveys in the Azores waters, complemented by fishery data, over the past c. 25 years. This study results from a recommendation of the International Council for the Exploration of the Sea (ICES) working group on the biology and assessment of deep-sea fisheries resources (WGDEEP), with the objective of examining the population structure of M. moro in the Azores archipelago based on all available data to test the hypothesis that the stock of this species in the ICES Subarea 10a2 represents a FMU. Results are presented and possible assumptions and strategies for the assessment are discussed. Acknowledgements This study was funded by the Regional Government of the Azores under the DEMERSAIS project. RS was funded by the IMAR Instituto do Mar, through a Post-doc fellowship (ref. IMAR/DEMERSAIS/002-2018). WS was funded by the IMAR Instituto do Mar, through a scholarship (ref. IMAR/UNI/MAR/04292/2019 MARE/001-2019). AN-P was funded by an FCT Ph.D. fellowship (ref. SFRH/BD/124720/2016). The authors thank all who participated in field surveys and sampling processing onboard the R/V "Arquipélago". Keywords: Mora moro, Commercial fish, population structure, assessment, Management, deep-sea Conference: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) , Braga, Portugal, 9 Sep - 12 Sep, 2019. Presentation Type: Oral Presentation Topic: Fisheries, Aquaculture and Biotechnology Citation: Santos RV, Novoa-Pabon AM, Silva WM, Silva HM and Pinho MR (2019). Stock structure of the common mora in the mid-North Atlantic (Azores archipelago). Front. Mar. Sci. Conference Abstract: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) . doi: 10.3389/conf.fmars.2019.08.00179 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: 19 May 2019; Published Online: 27 Sep 2019. * Correspondence: Dr. Régis V Santos, Instituto de Investigação Marinha (IMAR), Horta, Portugal, regisvinicius@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 Régis V Santos Ana M Novoa-Pabon Wendell M Silva Hélder M Silva Mário R Pinho Google Régis V Santos Ana M Novoa-Pabon Wendell M Silva Hélder M Silva Mário R Pinho Google Scholar Régis V Santos Ana M Novoa-Pabon Wendell M Silva Hélder M Silva Mário R Pinho PubMed Régis V Santos Ana M Novoa-Pabon Wendell M Silva Hélder M Silva Mário R Pinho 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.