Sikoki, F.D. and Hart, S.A. and Hart, A.I. and Adeleye-Wokoma, I.P.
Aspects of the reproductive biology of Mugil cephalus (Linnaeus, 1857) in Bonny Estuary.
In: 14th Annual Conference of the Fisheries Society of Nigeria (FISON)
, 19-23 January 1998
Aspects of the reproductive biology of Mugil cephalus in the Bonny estuary (Nigeria) were studied between January and December 1996. Males were observed to be more slender than females while the females have deeper bodies. The male:female ratio (1:0:95) was not significantly different. The minimum size at maturity was 16.6cm (0.5 yr). Fish matured at 24.3cm TL(1.76 yr) with median maturity size of 19.5cm TL(0.71 yr). Median maturity for male and female fish were 16.4cm TL(0.41 yr) and 18.2cm TL(0.60 yr) respectively. Breeding occurred once a year between September and December, from late rainy season to early dry season. Mean absolute fecundity was 1,403, 808 eggs (range 107, 729-4,445, 423 eggs) for fish of 220.127.116.11cm TL (mean 22.5cm TL). Fecundity correlated positively with fish total weight, length, ovary weight and age
Conference or Workshop Item
||Aspects of the reproductive biology of Mugil cephalus (Linnaeus, 1857) in Bonny Estuary
||14th Annual Conference of the Fisheries Society of Nigeria (FISON)
||19-23 January 1998
||Fisheries Society of Nigeria
||Nigeria, Rivers, Bonny Estuary; brackishwater environment; estuarine organisms; fecundity; reproductive cycle; sex ratio; sexual maturity; Mugil cephalus
Ms Maria Kalentsits
||11 Jul 2010 09:46
||29 Sep 2011 17:00
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