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Comparison of bottom trawl stock densities in the inner Kavirondo Gulf of Lake Victoria
Author(s) -
Muller R. G.,
Benda R. S.
Publication year - 1981
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1981.tb05843.x
Subject(s) - biology , fishery , clarias , lates , stock (firearms) , catfish , fish <actinopterygii> , geography , archaeology
A 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 1977.1 A reduction in mean stock densities for Bagrus docmac, Clarias mossambicus, Haplochromis spp., Protopterus aethiopicus, Schilbe mystus and Synodontis spp. 2 An increase in mean stock densities for Lates niloticus, Tilapia nilotica and T. variabilis . 3 No change in mean stock density for Labeo victorianus . 4 No T. esculenta or Mormyrus kannume collected in 1977.