Bilateral asymmetry in certain morphological characters of Sarotherodon melanotheron Ruppell 1852 and Coptodon guineensis (Gunther 1862) collected from Lake Aheme and Porto-Novo Lagoon Benin, West Africa

被引：5

作者：

Jawad, Laith

Gnohossou, Pierre ^{[1
]}

Tossou, Ayoko Geraldine ^{[1
]}

机构：

[1] 09 BP 164, Cotonou, Benin

来源：

MARINE POLLUTION BULLETIN | 2016年 / 103卷 / 1-2期

关键词：

Cichlidae; Morphology; Environment; Meristic characters; Porto Novo Lagoon; Lake Aheme; FLUCTUATING ASYMMETRY; TRACE-METAL; TEMPERATURE; TOXICITY; FISHES; AREA; SEA;

D O I：

10.1016/j.marpolbul.2015.12.049

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Asymmetry analysis was carried out for three bilateral characters of two cichlid fish species, Sarotherodon melanotheron and Coptodon guineensis collected from two localities, Lake Aheme and Porto-Novo lagoon, Republic of Benin, West Africa. For both S. melanotheron and C. guineensis snout length (SL), eye diameter (ED) and number of scales on lateral line (LLS), bilateral asymmetry was higher in the fish specimens collected from Porto-Novo lagoon compared with that of specimens from Lake Aheme Bilateral asymmetry in S. melanotheron and C guineensis increased with the fish size at all localities. The possible causes of bilateral asymmetry in the two cichlid species are discussed in relation to different pollutants in both water bodies. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：39 / 44

页数：6