Population Dynamics of an Indigenous Carp (Labeo dussutnieri) of the River Pampa, Kerala (India)
Population Dynamics of an Indigenous Carp (Labeo dussutnieri) of the River Pampa, Kerala (India)
Date
1998
Authors
Kurup, B. Madhusoodana
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Based on length composition of commercial landings of Labeo dussumieri of the
river Pampa, growth parameters, La and K were estimated using ELEFAN I
programme as 464.7 mm and 0.64/anmm\ respectively in male and 502 mm and 0.81/
annum in female. Average instantaneous rates of mortality Z, M and F in male were
respectively 1.4305, 0.8595 and 0.5710 while in females the above values were 2.3348,
1.0863 and 1.2485. From the length converted cohort analysis, F was estimated to
be 0.5709 in male against 1.2484 in female. The results of the present study showed
that males of L dussumieri of the river Pampa are harvested below the optimum level
while the females are exploited at optimum level and therefore, it is concluded that
the stock of this species can be maintained at a sustainable level at the present level
of exploitation.
Description
Keywords
Labeo dussumieri, growth parameters, mortality rates, stock sizes
Citation
Fishery Tech 35(2):114-119