Working Document Series Open Access 2012 RUF-32807

Breeding Seasonality and Size at first Maturity of Synodontis njassae of Southeast arm of Lake Malawi

K.M. KamtambeE.W. KaundaF. Maguza-TemboA. Msukwa

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Abstract

88 words

Breeding seasonality and size-at-first maturity of Synodontis njassae in southeast arm of Lakes Malawi was studied. It was found that males mature earlier than females (10.6cm and 11cm, respectively). The size at 50% maturity for both sexes was 12- 13cm. This species has small eggs, with an average fecundity of 3985 ± 39.690. The species has two breeding seasons. The first spawning occurs in February to March (GSI falls from 4.09 to 2.37) and the second spawning occurs from September to November (GSI falling from 3.5 to 2).

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