Morphological aspects of anchovy in the Atlantic Moroccan coast.

Abstract

Event Abstract Back to Event Morphological aspects of anchovy in the Atlantic Moroccan coast. Jihane J. El Idrissi El Awad1* and Hassan H. El Ouizgani1* 1 Université Ibn Zohr, fisheries biology, Morocco The purpose of this study is to determine if there is a morphological difference of the European anchovy, Engraulis encrasicoluscaught in the Moroccan Atlantic Coast and to verify if the individuals can be considered as a separate race, subpopulations or it’s the same population just it’s been influenced by the environment in which it’s located. The individuals were taken from the major ports in the Moroccan Atlantic ocean, with at least 250 km distance and an important climate and oceanographic change; these ports are Larach, Casablanca, Agadir and Laayoune. And also to check if there is already a local disparity, two nearby ports were chosen Larach and Assilah. A morphological and meristic analysis was carried out on 344 individuals, Twenty two morphometric characters are measured, and four meristic characters are counted for each individual. The data were processed by different statistical methods, the correlation test, PCA, ANCOVA and MANCOVA. The results of these tests allowed us to notice that there is a population opposition between Laayoune at the southern and Larach at the north, and despite that there is a proximity between Assilah and Larachit shows a disparity, not very important but a variability which makes that Assilah is closer to Agadir than Larach. According to the results we can remark that there is a gradient of variability from north to south through Casablanca, however we have an exception of Larach and Assilah. To confirm this difference a Kruskal-Wallis test has been applied to the meristic characters. The results of these tests and those of other researchers allowed us to link the morphometric variation of the species due to environmental changes. Keywords: Anchovy, Population, Moroccan Atlantic, Characters, morphometric, meristic, variation, Environmental changes. Conference: IMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018. Presentation Type: Poster Presentation Topic: Fisheries and Management Citation: El Idrissi El Awad JJ and El Ouizgani HH (2019). Morphological aspects of anchovy in the Atlantic Moroccan coast.. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00085 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 Apr 2018; Published Online: 07 Jan 2019. * Correspondence: Dr. Jihane J El Idrissi El Awad, Université Ibn Zohr, fisheries biology, Agadir, agadir idaoutanane, 80000, Morocco, jihaneelidrissi@gmail.com Prof. Hassan H El Ouizgani, Université Ibn Zohr, fisheries biology, Agadir, agadir idaoutanane, 80000, Morocco, h.elouizgani@uiz.ac.ma 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 Jihane J El Idrissi El Awad Hassan H El Ouizgani Google Jihane J El Idrissi El Awad Hassan H El Ouizgani Google Scholar Jihane J El Idrissi El Awad Hassan H El Ouizgani PubMed Jihane J El Idrissi El Awad Hassan H El Ouizgani 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.