Studies on some reproductive aspects of Pseudotolithus elongatus in the Cross River estuary, Nigeria

Scientia Marina

Volumn 68, Issue 2, 2004, Pages 265-271

  Ekanem, Sunday Ben ^a   Achima, Marilyn Joan ^a   Ekere, Mfon Michael ^a  

^a UNIVERSITY OF CALABAR   (Nigeria)

Author keywords

Cross River estuary; Pseudotolithus elongatus; Spawning

Indexed keywords

FISHERY MANAGEMENT; PERCIFORM; REPRODUCTIVE CYCLE; SPAWNING; STOCK ASSESSMENT;

AFRICA; CROSS ESTUARY; NIGERIA; SUB-SAHARAN AFRICA; WEST AFRICA;

PERCIFORMES; PSEUDOTOLITHUS ELONGATUS;

EID: 3242883366     PISSN: 02148358     EISSN: None     Source Type: Journal    
DOI: 10.3989/scimar.2004.68n2265     Document Type: Article

References (23)

1. Achima, M.N. - 1992. Fecundity and spawning in Pseudotolithus elongatus of the Cross River estuary. BSc thesis, Department of Biological Sciences, University of Calabar, Nigeria.
2. Bagenal, T.B. - 1978. Aspects of fish fecundity. In: S.D. Gerking (ed.), Ecology of freshwater fish production, pp. 75-95. Blackwells, Oxford, UK.
3. Blaxter, J.H.S. - 1969. Development: eggs and larvae. In: W.S. Hoar and D.J. Randal (eds.), Fish Phisiology Vol. 3, pp. 117-252. Academic Press, New York and London.
4. Bückmann, A. - 1963. Das Problem der optimalen Bufischung. Eine Darstellung zur Methodik der Fischerwiss 141 Beiheft 1: 1-107.
5. Delahunty, G. and V.L. de Vlaming. - 1980. Seasonal relationships of ovary weight, liver weight and fat stores with body weight in the gold fish, Carassius auratus (L). J. Fish. Biol., 16: 5-13.
6. Draper, N. and H. Smith. - 1966. Applied regression analysis. John Wiley & Sons Inc. New York, London, Sydney.
7. Echeverria, T.W. - 1987. Thirty-four species of California rock-fishes: Maturity and seasonality of reproduction. Fish. Bull., 85(2): 229-250.
8. Elliot, O.O. - 1995. Present status of the croaker fisheries in Nigeria. In: Abstract of First Pan African Fisheries Congress on Sustainable Development of Fisheries in Africa held in Nairobi, Kenya 31 July-4 August 1995, p. 191.
9. Etim, L., B.U. Uwe-Bassey and T. Brey. - 1994. Population dynamics of the West African croaker Pseudotolithus elongatus in the Cross River Estuary, Nigeria. Sci. Mar., 58(4): 315-321.
10. Fischer, W., G. Bianchi and W.B. Scott. - 1981. FAO species identification sheets for fishery area 34, 47, Vol. 7. Canada funds in trust, Ottawa, Canada, by arrangement with FAO.
11. th Annual Conference of Fisheries Society of Nigeria, Lagos 22-24 February 1994.
12. Healey, M.C. and R.A.W. Nicol. - 1975. Fecundity comparisons for various stocks of lake white fish Coregonus clupeaformis. J. Fish. Res. Bd. Canada, 32: 404-407.
13. Isebor, C.E. and P.O. Abohweyere. - 1995. Population dynamics of Pseudotolithus typus in the Gulf of Guinea. In: Abstract of First Pan African Fisheries Congress on Sustainable Development of Fisheries in Africa held in Nairobi, Kenya 31 July-4 August 1995, p. 135.
14. Longhurst, A.R. - 1964. Bionomics of the Sciaenidae of tropical West Africa. J. Cons., CIEM 29: 93-114.
15. Longhurst, A.R. - 1966. A Synopsis of biological data on West African croakers, P. typus, P. elongatus and P. senegalensis. FAO Fish. Synop., No. 35.
16. Löwenberg, U. and T. Künzel. - 1991. Investigations on the trawl fishery of the Cross River Estuary, Nigeria. J. Appl. Ichthyol., 7: 44-53.
17. Nikolsky, G.V. - 1963. The ecology of fishes. Academic Press Inc. Berkeley Square London. p. 160.
18. Schaefer, K.M. - 1996. Spawning time, frequency and batch fecundity of yellow tuna, Thunnus albacares, near Clipperton Atoll in the eastern Pacific Ocean. Fish. Bull., 94: 98-112.
19. Simpson, A.C. - 1951. The fecundity of plaice. UK Ministry of Agriculture, Fisheries and Food Investigation. Series 217: 3-27.
20. Tientcheu, J.Y. and T. Djama. - 1995. Biological aspects of two species of Sciaenidae, Pseudotolithus typus and Pseudotolithus senegalensis of Cameroon: Reproduction and feeding. In: Abstract of First Pan African Fisheries Congress on Sustainable Development of Fisheries in Africa held in Nairobi - Kenya. 31 July-4 August 1995. p. 29.
21. Tyler, C.R. and J. P. Sumpter. - 1996. Oocyte growth and development in teleosts. Rev. Fish Biol. Fish., 6: 287-318.
22. Uwe-Bassey, B.U. - 1988. The catch structure of the artisanal gill-net fishery of the lower Cross River. M.Sc. Thesis. University of Calabar, Nigeria. 105 pp.
23. Zuyev, G.V. and V.E. Giragosov. - 1990. Reproduction biology and production characteristics of three species of croakers (Sciaenidae) along the Guinea coast (Abstract).