Keywords
endemic
ornamental
gonadosomatic index
India.
Puntius shalynius
endémico
ornamental
índice gonadosomático
India.
How to Cite
Abstract
Puntius shalynius is a highly endemic freshwater minor carp that is economically
important and is threatened because of its ornamental value. The present investigation
evaluated this barb gonadal maturation, based on morphology and spawning of this species in
the Umiam river, Meghalaya, India. The population of this indigenous fish has declined due to
its fragmented distribution and exploitation as an ornamental fish. The reproductive cycle of
P. shalynius was studied for the first time. A total of 609 fish samples were randomly
collected from the river for a period of two years during January 2010 and December 2011.
Five maturity phases (rest, primary growth, secondary growth, ripe and spent) were observed
on the basis of ovarian and testicular macroscopic evaluation throughout the annual cycle.
Peak spawning activity was observed in the month of June/July and it coincided with the start
of the monsoon season. The study showed that the fish spawns once in a year with single
spawning peak and that the species is a low fecund fish. It is important to conserve this
species for its unique ecological value and urgent management policies should promote its
sustainable utilization.
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