Analysis of Otolith Shape as a Tool for Discriminating Stocks of Cassava Croaker (Pseudotolithus senegalensis) in Beninese Waters  

作　　者：Madel Floriane Adjibayo Houeto Marius Sounouvou Malek Tazarki Nicolas Andrialovanirina Meriam Ben Ghorbel Marwa Mejri Pierre Dossou-Yovo Abdellah Chalh Jean-Pierre Quignard Kélig Mahé Monia Trabelsi Madel Floriane Adjibayo Houeto;Marius Sounouvou;Malek Tazarki;Nicolas Andrialovanirina;Meriam Ben Ghorbel;Marwa Mejri;Pierre Dossou-Yovo;Abdellah Chalh;Jean-Pierre Quignard;Kélig Mahé;Monia Trabelsi(Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia;Institute of Mathematics and Physical Sciences, University of Abomey-Calavi (UAC), Abomey-Calavi, Benin;Fisheries Resources Laboratory, Unit HMMN, French Institute for Ocean Science (IFREMER), Boulogne-sur-Mer, France;Laboratory for Research into the Processing and Conservation of Fishery Products (LAREPROH), University of Abomey Calavi (UAC), Abomey-Calavi, Bnin;Unit of Population Genetics and Biological Resources, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia;Ichtyology Laboratory, Montpellier University , Montpellier, France)

机构地区：[1]Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia [2]Institute of Mathematics and Physical Sciences, University of Abomey-Calavi (UAC), Abomey-Calavi, Benin [3]Fisheries Resources Laboratory, Unit HMMN, French Institute for Ocean Science (IFREMER), Boulogne-sur-Mer, France [4]Laboratory for Research into the Processing and Conservation of Fishery Products (LAREPROH), University of Abomey Calavi (UAC), Abomey-Calavi, Bnin [5]Unit of Population Genetics and Biological Resources, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia [6]Ichtyology Laboratory, Montpellier University , Montpellier, France

出　　处：《Open Journal of Marine Science》2024年第4期96-114,共19页海洋科学期刊（英文）

摘　　要：This study examined the right and left otoliths of 174 individuals of Pseudotolithus senegalensis from the Porto-Novo lagoon, Lake Nokoué and the Atlantic coast. The results show a significant variation in the population according to geographic location. Mixed-effects linear analysis showed no significant variation by site, side or sex (p > 0.05). Analysis of otolith shape using ANOVA showed significant differences for length, width and area (p 0.05). Canonical discriminant analysis revealed significant differences between sites (p < 0.05). Finally, shape analyses showed significant differences between sites (p = 0.0001) and between right and left sides (p = 0.007), but no difference by sex (p = 0.395). The study of otolith morphology is therefore proving to be a valuable tool for differentiating stocks and understanding ecological variations.This study examined the right and left otoliths of 174 individuals of Pseudotolithus senegalensis from the Porto-Novo lagoon, Lake Nokoué and the Atlantic coast. The results show a significant variation in the population according to geographic location. Mixed-effects linear analysis showed no significant variation by site, side or sex (p > 0.05). Analysis of otolith shape using ANOVA showed significant differences for length, width and area (p 0.05). Canonical discriminant analysis revealed significant differences between sites (p < 0.05). Finally, shape analyses showed significant differences between sites (p = 0.0001) and between right and left sides (p = 0.007), but no difference by sex (p = 0.395). The study of otolith morphology is therefore proving to be a valuable tool for differentiating stocks and understanding ecological variations.

关 键 词：Otoliths Pseudotolithus senegalensis Factorial Analysis Porto-Novo Lagoon Atlantic Coast and Lake Nokoué 

分 类 号：S91[农业科学—水产科学]