Actinoptcrygii; Condition factor; Length-length; Length-weight; Mono basin; Relationship; West Africa
Abstract :
[en] Based on their catches, this study describes the length-weight relationships (LWRs), length-length relationships (LLRs), and condition factors (K) of the 30 most common actinopterygian fish found in the Mono basin. A total of 6,591 specimens were caught, using multiple gears and fishing methods, between February 201! and May 2014. The allometric b coefficient of the LWRs (BW = a x TLb) ranged between 2.650 for Polypterus senegalus and 3.468 for Awaous lateristrigci with an average of 2.993 ± 0.177. Thirteen species had an isometric growth, seven species a negative allometric growth, and for the remaining ten species, growth was positive allometric. Regarding the LLRs, the coefficient of determination r2 was significant and ranged from 0.905 in Petrocephalus bovei to 0.999 in Parachanna obscura with an average of 0.973 ± 0.027. The condition factor (K = BW/TLb x 100) ranged from 0.406 ± 0.044 in A. lateristriga to 2.374 ± 0.805 in Lates niloticus, with an overall average of 1.145 ± 0.161.
Lalèyè, Philippe Adédjobi; Laboratory of Functional and Evolutionary Morphology, Chemistry Institute B6, University of Liege, Sart Tilman, Liege, B-4000, Belgium
Vreven, Emmanuel J.W.M.N.; Vertebrate Section, Royal Museum for Central Africa, Ichthyology, Leuvensesteenweg 13, Tervuren, 3080, Belgium, KU Leuven, Laboratory of Biodiversity and Evolutionary Genomics, Charles Deberiotstraat 32, Leuven, 3000, Belgium
Vandewalle, Pierre ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Département de Biologie, Ecologie et Evolution
Language :
English
Title :
Length-weight and length-length relationships and condition factors of 30 actinopterygian fish from the Mono basin (Benin and Togo, West Africa)
Publication date :
2016
Journal title :
Cybium
ISSN :
0399-0974
eISSN :
2101-0315
Publisher :
Société Française d'lchtyologie, France
Volume :
40
Issue :
4
Pages :
267-274
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
KU Leuven - Katholieke Universiteit Leuven IFS - International Foundation for Science AUF - Agence Universitaire de la Francophonie
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