Abundance, length – weight relationships and Fulton’s condition factor of the freshwater cichlid Sarotherodon galilaeus (Pisces: Teleostei: Perciformes) from a sand-dragged man-made lake of Southern Benin, West Africa

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Research Paper 01/05/2016
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Abundance, length – weight relationships and Fulton’s condition factor of the freshwater cichlid Sarotherodon galilaeus (Pisces: Teleostei: Perciformes) from a sand-dragged man-made lake of Southern Benin, West Africa

Houehanou M.A.G. Gbaguidi, Alphonse Adite
J. Bio. Env. Sci.8( 5), 75-87, May 2016.
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Abstract

Condition factors and growth trends indices such as allometry coefficients are decisive fisheries management tools that evaluate the well-being of fishes, their establishment and the quality of their habitat. We investigated the condition factors and length-weight relationships of a freshwater tilapine cichlid, Sarotherodon galilaeus, that has naturally colonized the artificial lake of Ahozon (South-Benin). S. galilaeus individuals has been sampled every month in the “aquatic vegetation” and in the “open water” habitats with seines, cast nets, gill nets and hooks. This species dominated Lake Ahozon and made about 85.21% of the fish community. Fish sizes showed significant spatial (F1,5548=57106.9, p=0.0001) and seasonal (F2,5547=82,06, p=0.0001) variations and smaller sizes (18.65±5.76mm-SL) were recorded in the “aquatic vegetation” considered as the spawning ground for S. galilaeus. In Lake Ahozon, length-weight regression equations gave slopes b ranging between 2.636 and 3.081 indicating that S. galilaeus exhibited both allometric and isometric growth. Also, the species exhibited spatial (F1,5548=94.510, p=0.0001), seasonal (F2,5547=7.163, p=0.001), ontogenetic (F2,5547=63.591, p=0.0001) and sexual (F1,3781=8.275, p=0.001) variations of condition factors (K) that mostly depend on the availability of food resources. The prominence of the species and its condition factors indicated that S. galilaeus is well- establishment in Lake Ahozon. The improvement of growth performance and well-being for a sustainable fisheries/aquaculture in Lake Ahozon require the protection of the foraging and spawning grounds, the prevention against organic and chemical pollution, the introduction of predators to prevent overpopulation of S. galilaeus, the fertilization of the lake and a planned harvest of the fish stock.

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Abowei JFN. 2009. The abundance, condition factor and lenght – weight relationship of Cynoglossus senegalensis (Kaup, 1858) from Nkoro River Niger Delta, Nigeria. Advanced Journal of Food Sciences and Technology 1, 56-61.

Abowei JFN. 2010a. The condition factor, length – weight relationship and abundance of Ilisha Africana (Block, 1795) from Nkoro River Niger Delta, Nigeria. Advanced Journal of Food Sciences and Technology 2, 6-11.

Abowei JFN. 2010b. The condition factor, length – weight relationship and abundance of Elops seneganensis (Regan, 1909) from Nkoro River, Niger Delta, Nigeria. Advanced Journal of Food Sciences and Technology 2, 16-21.

Adite A. 2007. Ecologie de Heterotis niloticus (Osteoglossiforme : Osteoglossidae) du Système fluvio-lacustre rivière Sô – lac Hlan (Sud-Bénin) : conservation et Intérêt pour l’aquaculture. Ph.D Dissertation, Faculté des Scienes et Techniques, Université d’Abomey-Calavi, Abomey-Calavi,

Adite A, Van Thielen R. 1995. Ecology and fish catches in natural lakes of Benin, West Africa. Environmental Biology of Fishes 43, 381-391.

Adite A, Winemiller KO. 1997. Trophic ecology and ecomorphology of Fish assemblages in coastal lakes of Benin, West Africa. Ecoscience 4, 6-23.

Adite A, Winemiller KO, Fiogbe DE. 2005. Ontogenetic, seasonal, and spatial variation in the diet of Heterotis niloticus (Osteoglossiformes; Osteoglossidae) in the Sô River –Lac Hlan system, Benin, West Africa. Environmental Biology of Fishes 3, 367- 378.

Adite A, Winemiller KO, Fiogbe ED. 2006. Population structure and reproduction of the African bonytongue Heterotis niloticus in  the  Sô River-floodplain  system  (West  Africa)  Implications for management. Ecology of Freshwater Fishes, 15, 30-39. http://dx.doi.org/10.1111/j.1600-0633.2005.00119.x

Akoegninou A, Oyede LM, Toffi M. 1993. La mangrove du Benin: Environnement physique, végétation, et essais de gestion. Document technique No 2, FAST-UNB, Abomey-Calavi.

Capo-chichi YJ. 2006. Monographie de la commune de Grand- popo. Cabinet «Afrique Conseil».

Deekae SN, Abowei JFN. 2010. Macrobrachium Macrobrachion (Herklots, 1851) Length Weight Relationship and Fulton’s Condition Factor in Luubara creek, Ogoni Land, Niger Delta, Nigeria. International Journal of Animal and Veterinary Advances 2, 155-162.

Fryer G, Iles TD. 1972. The cichlid fishes of the Great Lakes of Africa. Their biology and evolution. Edinbuerg, Olivier & Boyd.

Gbaguidi GAMH, Adite A, Sossoukpe E. 2016. Reproductive ecology and establishment of the naturally-colonized tilapine cichlid, Sarotherodon galilaeus (Pisces: Actinopterigii: Perciformes) from a man-made lake, Southern Benin, West Africa: implications for aquacultural valorization. International Journal of Fisheries and Aquatic Studies (in press).

Gbaguidi GAMH, Adite A, Sossoukpe E. 2016. Ecology and Fish Biodiversity of Man-made Lakes of Southern Benin (West Africa): Implications for Species Conservation and Fisheries Management. Journal of Environmental Protection (in press).

Laleye P, Niyonkuru C, Moreau J, Teugels GG. 2003. Spatial and seasonal distribution of the ichthyofauna of Lake Nokoué, Benin, West Africa. African Journal of Aquatic Sciences 28, 151-161.

Laleye P, Chikou A, Philippart JC, Teugels GG,Van De Walle P. 2004. Etude de la diversité ichtyologique du bassin du fleuve Ouémé au Bénin (Afrique de l’Ouest). Cybium 28, 329-339.

Le Cren ED. 1951. The length-weight relationship and seasonal cycle in gonad weight and condition in the perch Perca fluviatilis. Journal of Animal Ecology 20, 201-219.

Leveque C, Paugy D, Teugels GG. 1992. Faune des poissons d’eaux douces et saumâtres de l’Afrique de l’Ouest. Tome 2. Editions OSTORM/MRAC, Paris.

Leveque C. 1997. Biodiversity dynamics and conservation: The freshwater fish of tropical Africa. Cambridge University Press.

Lopez-Fernandez H, Winemiller KO, Adite A, Arrington DA, Layman CA. 2003. Freshwater fish diversity in Benin, West Africa, and challenge for its conservation. In: UAC Ed. Poissons et Pêches Africains. Cotonou, Benin, UAC, 85-86 p.

Lowe-McConnell RH. 1975. Fish communities in tropical freshwaters. Longman Inc., New York.

Lowe-McConnell RH. 1987. Ecological studies in tropical fish communities. Cambridge University Press, Cambridge.

Morgan GA, Grieggo OV, Gloeckner GW. 2001. SPSS for Windows: An introduction to use and interpretation in research. Lawrence Erlbaum Associates, Publishers, Mahwah, New Jersey.

Murphy BR, Willis DW. 1996. Fisheries Techniques. Second edition. American Fisheries Society, Bethesa, Maryland.

Okpeicha SO. 2011. Biodiversité et exploitation des poissons du barrage de la SUCOBE dans la commune de Savè au Bénin. Mémoire de Master, Faculté des Sciences Techniques, UAC, Cotonou, Benin.

Schreck CB, Moyle PB. 1990. Methods for Fish Biology. American Fisheries Society, Bethesa, Maryland.

Snoeks J. 2000. How well known is the ichyodiversity of the large East African lakes? Advanced Ecology Resources 31, 17-38.

Tesch FW. 1971. Age and Growth. In: Ricker, WE Ed. Methods for Assessment of Fish Production in Fresh Waters. Oxford, UK : Blackwell Scientific Publications, p. 98-130.

Steingrimsson SO, Gislason GM. 2002. Body size, diet and growth of landlockedbrown trout, Salmon trutta, in the subarctic River Laxa, North-East Iceland. Environmental Biology of Fishes 63, 417-426.

Van Thielen R, Hounkpe C, Agon G, Dagba L. 1987. Guide de détermination despoissons et crustacés des lagunes et lacs du Bas Bénin. Direction des Pêches- GTZ, Cotonou.

Winemiller KO. 1992a. Fish assemblages across a complex, tropical freshwater/marine ecotone. Environmental Biology of Fishes 34, 29-50.