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- W2485753398 abstract "Nothobranchius guntheri is found in seasonal pools and streams in the coastal region of Tanzania. A population recurring annually in a pond near Kilosa has been studied. Growth in length was rapid and maximum mean lengths were attained within 11-12 and 7-8 weeks of hatching bymales and females respectively. Males grew larger and exhibited wider variation in length than females. N. guentheri shows clear sexual dichromatism.No significant inequality in the sex ratio was found. Females with ripe eggs were found 7-8 weeks after hatching. Spawning continued throughout adult life and fecundity increased markedly with increasing length. In laboratory aquaria, aggressiveness between adult males wasnoted and females were actively driven on to the substratum preparatory to spawning. The diet of the fish pond consisted chiefly of aquatic and terrestrial insects, of which midge larvae and pupae were the most common.N. guentheri is exploited by man in the aquarist trade and for the biological control of mosquitoes. An extended redescription of the species is appended which includes N. melanospilus (Pfeffer) as a synonym." @default.
- W2485753398 created "2016-08-23" @default.
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- W2485753398 date "1972-01-01" @default.
- W2485753398 modified "2023-09-26" @default.
- W2485753398 title "Observations on the biology of Nothobranchius guentheri (Pfeffer) (Cyprinodontidae), an annual fish from the coastal region of East Africa" @default.
- W2485753398 hasPublicationYear "1972" @default.
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