Comparison of bottom trawl stock densities in the inner Kavirondo Gulf of Lake Victoria
1981; Wiley; Volume: 19; Issue: 4 Linguagem: Inglês
10.1111/j.1095-8649.1981.tb05843.x
ISSN1095-8649
Autores Tópico(s)Fish Ecology and Management Studies
ResumoA comparison of mean bottom trawl stock densities (kg ha ‐1 ) from 19 UNDP 1969/70 tows, 69 EAFFRO 1975 tows and 167 fourth quarter FFRI 1977 tows in the inner Kavirondo Gulf of Lake Victoria showed the following changes from 1969/70 to 1977. A reduction in mean stock densities for Bagrus docmac, Clarias mossambicus, Haplochromis spp., Protopterus aethiopicus, Schilbe mystus and Synodontis spp. An increase in mean stock densities for Lates niloticus, Tilapia nilotica and T. variabilis . No change in mean stock density for Labeo victorianus . No T. esculenta or Mormyrus kannume collected in 1977.
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