SOME BIOLOGICAL ASPECTS OF THE FISH FAMILIES - MOCHOKIDAE, BAGRIDAE AND MORMYRIDAE IN ZARIA AREA
SOME BIOLOGICAL ASPECTS OF THE FISH FAMILIES - MOCHOKIDAE, BAGRIDAE AND MORMYRIDAE IN ZARIA AREA
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Date
1982-10
Authors
CEPHAS, MONEKE CHIBUEZE
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Abstract
Some biological aspects of the fisn families - Mochokidae,
ridae and Mormyridae were investigated in Zaria area,
Les were got from the "Sabongari" market in Zaria from
month of June to December, 1981.
Eight rnormyrid, three bagrid and one mochokid species
were found in the samples.
The fishes were found to feed on variety of food items.
The mormyrids were principally insectivorous with exceptions
of Mormyrops deliciosus which was piscivorous and Hyperopisus
that was principally herbivorous. in the bagrid,
Auchenog1anis occidentalis depended highly on immature insects,
while Bagrus docmac was principally piscivorous. The only
mochokid, Synodontis schall fed principally on immature
insects, seeds and algae.
There were more females in the samples than the males,
The fishes were found to breed during the rains, between
June and September. The fecundity was estimated and was
found to be high for Synodontis schall and Marcusensis
senegalensis. The length-weight relationship indicated
allometric growth for most of the species.
Description
THESIS SUBMITTED IN PARTIAL FULFILLMENT OF
THE REQUIREMENTS FOR THE DEGREE OF
MASTER OF SCIENCE
IN FISHERIES
DEPARTMENT OF BIOLOGICAL SCIENCES
FACULTY OF SCIENCE
AHMADU BELLO UNIVERSITY
ZARIA, NIGERIA
OCTOBER, 1982
Keywords
BIOLOGICAL,, ASPECTS,, FISH,, FAMILIES,, MOCHOKIDAE,, BAGRIDAE,, MORMYRIDAE,, ZARIA AREA.