The Growth Parameters and Mortalities of Five Species of Synodonits in the Lower River Benue at Makurdi

Akombo, Pauline Mbakaan (Department of Biological Sciences, Benue State University, Makurdi, Nigeria)
Atile, John Iornyiman (Department of Biological Sciences, Benue State University, Makurdi, Nigeria)
Shima, Judith Nguvan (Department of Biological Sciences, Benue State University, Makurdi, Nigeria)

Abstract


The growth parameters and mortalities of five species of Synodontis in the lower river Benue at Makurdi, Benue State were studied from January,2016 to December, 2018. The asymptotic length (L∞) calculated for the five species ranged from 18.80cm in S.clarias females to 37.04cm in S.membranaceus females. The t0 values were all negative in the combined sexes of S.clarias, S.omias, S.gambiensis and S.membranaceus. In both combined sexes of S.membranaceus and S.schall, the t0 values were positive. The growth rate (K) was low in S.clarias and S.omias (0.301- 0.497, 0.171 - 0.310) respectively and higher in S.membranaceus (0.310 - 0.640), S.schall females (0.430 - 0.580); S.schall males (0.573),S.gambiensis (0.500 - 0.571). Growth performance index (Ø’) was 2.212 in S.gambiensis and 2.946 in S.schall combined. Natural Mortality (M) ranged from 0.5422 in S.omias females to 1.3340 in S.membranaceus males. Fishing Mortality (F) was 0.8214 in S.omias combined and 3.0934 in S.membranaceus females. Total mortality (Z) ranged from 1.52 in S.omias combined to 4.078 in S.membranaceus combined. Mean Exploitation (E) ratios was 0.61 in S.clarias, 0.64 in S.omias, 0.53 in S.gambiences, 0.70 in S.membranaceus, and 0.66 in S.schall. The rate at which these species survived in the River was low (from 0.147, in S.omias combined, to 1.482 in S.membranaceus combined).


Keywords


Growth parameters;Mortalities;Synodontis;River Benue

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References


[1] Nikolsky, G. V. (1963). The Ecology of Fishes. Academic press, New York, 35-41.

[2] Lagler, K. F., Bardach, J. E., Litter, R. R. and Passimo, D. R. M. (1977). Ichthyology. John Wiley and Sons Inc., 506.

[3] Bagenal, T.B. (1978). Aspects of fish fecundity, pp 75-95. In:S.D.Gerking (ed) Ecology of Freshwater Fish Production, Blackwell Scientific.Oxford England.

[4] Adeyemi, S. O. (2011). Study of some physico-chemical parameters and their effect on Potential Fish Yield in Gbadikere Lake. Bassa, Kogi State, Nigeria.Pakistan Journal of Nutrition, 10 (5):475-479.

[5] Deekae, S.N. & Abowei, J.F.N (2010)a. The mortality, exploitation rate and longevity of Macrobrachium macrobrachion (Herklots, 1851) in Luubara Creek,Ogoni land, Niger Delta, Nigeria.Journal of Biological Sciences, 2 (5):323-327.

[6] Ricker, W. E. (1975). Computation and Interpretation of biological statistics of fish populations.Bull. Fish.Rep. Bill Can. Bull, 191: 1 - 382.

[7] Pauly, D. (1983). Some Simple Methods for the Assessment of Tropical Fish Stock. Food and gricultural Organisation of the United Nations. FAO Technical Paper 234: 2-41.

[8] Ekelemu K. Jerimoth and Samuel A.A. Zelibe , 2007.Age Determination in Citharinus citharus (Pisces:Citharinidae) and Synodontis nigrita (Pisces: Mochokidae ) in Lake Ona, Southern Nigeria.Journal of Fisheries International, 2: 4-11.

[9] Abowei, J. F. N. (2009). Aspects of Hemisynodontis membanaceus (Geoffrey- St, Hilare,1809) Population Dynamics from the Fresh Water Reaches of Lower Nun River, Niger Delta, Nigeria. Advance Journal of Food and Technology, 1 (1): 27-34.

[10] Guerreiro A., Amadio S., Fabré N., Batista V. (2018).Estimation of growth parameters of five fish species (Actinopterygii) caught in the central Amazon. Acta Ichthyol. Piscat. 48 (3): 303-313.

[11] Reid, M. G. and Sydenhan, H. L. (1979). A check-list of Lower Benue River fishes. Icthyo -geographical review of the Benue River, West-Africa. Journal of Natural History, 13: 14-67.

[12] Reed, W., Burchark, J., Hopson, A. J., Jennes, J and Yaro, I. (1967). Fish and Fisheries of Northern Nigeria. Gaskiya Corporation, Zaria, Northern-Nigeria,85-101.

[13] Von. B. (1957). The Endocrinology of Growth, Development, and Metabolism in Vertebrates.

[14] Pauly, D. (1980). On the interrelations between natural mortality, growth parameters and mean environmental temperature in 175 fish stock. J. Cons. Perm.Int. Explor. Mer., 39 (2): 175 - 192.

[15] Pauly, D. and Munro, J. L. (1984). Once more on growth comparison in fishes and vertebrates.Fishbyte, 2 (1): 21-25.

[16] Araoye, P. A. (1997). Bio-Ecology of a Mochokid Synodontis Schall (Bloch and Schneider, 1801) in Asa Lake, Ilorin, Nigeria. Ph. D. Thesis, University of Ibadan, 201.

[17] Abowei, J. F. N. and Hart, A. I. (2009). Some Morphometric Parameters of Ten Finfish species from the Lower Nun River, Delta, Nigeria. Research Journal of Biological sciences, 4 (3):282-288.

[18] Midhat, A. E. K., Mohammed, M. N., A. and Seham,A. I. (2012). Environmental studies on Synodontis schall (Bloch and Schneider, 1801), (Pisces: Mochokidae) in The River Nile at Gizza Sector, Egypt:Biological aspects of Population Dynamics. Journal of Fisheries and Aquatic , 7:104 - 133.

[19] Sparre, P., Ursin, E., Venema, S. C. (1992). Introduction to Fish Stock Assessment Part 1, manual FAO.Fisheries Technical Paper No. 306/1 Revision 1.Rome FAO, 396.

[20] King, R. P. (1991). The biology of Tilapia mariae (Boulenger, 1899), (Pisces: Cichlidae) in a Nigerian Rainforest Stream. Ph.D Thesis. University of Portharcourt, Nigeria, 386.

[21] Abowei, J. F. N., Hart, A. I. (2007). Size, composition, age, growth, mortality and exploitation rate of Chrysichthys nigrodigitatus from Num River, Niger Delta, Nigeria. Afr. J. Applied Zool.Environ. Biol.,(9): 44 - 50.

[22] Gomez-Marquez, J. L., Perila-Mendoza, B. Salgado-Ugarte, I.H., and Arredondo-Figueroa, J. L.(2008). Age and growth of tilapia, Oreochromis niloticus (Perciformes: Cichlidae) from a Tropical shallow lake in Mexico. Revista de Biologia Tropical, 56 (2).www.Scielo.Sa.Cr/Scielo.php.

[23] Okechukwu, I. O. (2011). Age, Growth and Mortality of Clarias gariepinus (Siluriformes:Clariidae) in the Mid-Cross River Flood plain ecosystem, Nigeria. Revista Biologia Tropical, 59 (4): 121-127.

[24] Sambo, F. and Haruna M. (2012). Some Aspects of the growth parameters of the fishes of Ibrahim Adamu Lake, Kazaure, Jigawa state, Nigeria. Bayero Journal of Pure and Applied Science, 5 (1): 175 -181.

[25] Lebo, P. E., King, R. P., Etim, L., Akpan, B. E. and Jonathan, G. E. (2010). Breeding Seasonality and population dynamics of the catfish Schilbe mystus (Schilbeidae) in the Cross River, Nigeria.African Journal on Line, www.:ajol.info/index.

[26] Adedolapo, A. (2007). Age and growth of the African butter catfish, Schilbe mystus (Linnaeus,1758) in Asajire and Oyan Lakes, South-Western Nigeria.Journal of Fisheries and Aquatic Sciences, 2: 110-119.

[27] Ogle, D. H. (2018). Growth (Von Bertalanffy) Ogle’s Notes. Derekogle.com/NCNRS349/Theme by beautiful-jekyll.

[28] Ogueri, C., Adaka, G. S., Nlewadim, A. A. and Ben-Chendo, G. N. (2009). Comparative analysis of growth parameters and ages of fish species in River Katsin-Ala, Nigeria. Nigerian Journal of Fisheries, 6 (1&2): 35-43.

[29] Uneke, B. I., Nwani, C. D., Okogwu, O. and Okoh, F.(2010). Growth, Mortality, Recruitment and Yield of Pellonula leonensis Boulenger, 1917 (Osteitchtyes: Clupeidae) in a Tropical Flood River System. Journal of Fisheries International, (1): 19 - 26.

[30] Otobo, A. J. T. (1993). The Ecology and fishery of the Pygmy Herring Sierrthensa leonensis (Thysvan Den Audenaerde, 1969) in the Nun River and Taylor Creek of the Niger Delta. Ph.D. Thesis University of Port Harcourt, 298.



DOI: https://doi.org/10.30564/jzr.v3i3.3408

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