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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
An assessment of the growth rate of mpasa, opsabidium microlepis (Gunther, 1864) (pisces: Cryprinidae), by length frequency analysis
Journal of the Limnological Society of Southern Africa, Volume 13, No. 2, Year 1987
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Description
The mpasa, Opsavidiun miorolepis, is an important commercial species in areas of Lake Malawi near major inflowing rivers during annual spawning migrations. Plots of length frequency data collected over a series of years from mpasa catches in the Bua and North Rukuru Rivers show consistent peaks and these are believed to represent year classes. Growth in length is approximately linear, about 11 cm per year, until about five years of age. Males and females have similar growth rates.Catch per unit effort is positively related to river level at time of sampling, and to river levels in earlier years, thus high river levels improve recruitment. © 1987 Taylor & Francis Group, LLC.
Authors & Co-Authors
Tweddle, Denis
Malawi, Lilongwe
Fisheries Department
Statistics
Citations: 11
Authors: 1
Affiliations: 1
Identifiers
Doi:
10.1080/03779688.1987.9633113
ISSN:
03779688
Study Locations
Malawi
Participants Gender
Female