Abstract
The length-weight relationship, condition factor, fecundity and food and feeding habits ofPellonula afzeliusi (Johnels) in Lagos Lagoon were investigated. The standard length of 1832 specimens examined ranged between 3.5 and 9.4 cm (total length 3.9 cm–11.4 cm) and was larger than reported elsewhere in West African man-made lakes. Specimens exhibited positive allometric growth. Their condition factor increased with individual size. Females had a slightly higher condition factor than males. The number of mature ova per female ranged between 330 and 33,649. There was a higher correlation between fecundity and weight than between fecundity and length. The major food items were crustaceans, insects and fishes. There were distinct differences in the feeding habits in relation to size. Variations were observed in the monthly analysis of food items.
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Akpata, T. V. I. & Ekundayo, J. A., 1978. Faecal pollution of the Lagos Lagoon. Nig. J. Sci. 12: 39–53.
Hynes, H. B. N., 1950. The food of freshwater sticklebacks (Gasterosteus aculeatus and Pygosteus pungitius) with a review of methods used in studies of the food of fishes. J. anim. Ecol. 19: 36–58.
Lagler, K. F., 1957. Freshwater Fishery Biology, 2nd edn. Won. C. Brown Coy., Dubuque, Iowa. 421 pp.
Otobo, F. O., 1974. The potential for clupeid fishery in Lake Kainji, Nigeria. Afr. J. Trop. Hydrobiol. & Fish. 3: 123–134.
Otobo, F. O., 1976. Observations on the meristic characters separating Pellonula afzeliusi (Johnels) from Sierrathrissa leonensis (Thys Van den Audenaerde). J. Fish. Biol. 8: 303–310.
Otobo, F. O., 1978. The reproductive biology of Pellonula afzeliusi (Johnels) and Sierrathrissa leonensis (Thys Van de Audenaerde) in Kainji Lake, Nigeria. Hydrobiologia 61: 99–112.
Reynolds, J. D., 1969. The biology of the clupeids in the new Volta Lake in Ghana. In: Obeng, L. E. (ed.) Man-made Lakes: the Accra Symposium. Ghana University Press, Accra: 195–203.
Reynolds, J. D., 1970. Biology of the small pelagic fishes in the new Volta Lake in Ghana. I. The Lake and the fish: Feeding habits. Hydrobiologia 35: 569–603.
Vanderpuye, J., 1973. Population of clupeids in Volta Lake. Ghana J. Sci. 13: 79–193.
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Ikusemiju, K., Oki, A.A. & Graham-Douglas, M. On the biology of an estuarine population of the clupeidPellonula afzeliusi (Johnels) in Lagos Lagoon, Nigeria. Hydrobiologia 102, 55–59 (1983). https://doi.org/10.1007/BF00006049
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DOI: https://doi.org/10.1007/BF00006049