Seasonal and Moult Related Changes in Spermatogenesis of Travancoriana schirnerae
Seasonal and Moult Related Changes in Spermatogenesis of Travancoriana schirnerae
Date
2016
Authors
Smija, M.K
Devi, A. R. Sudha
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
The present study examined the seasonal and moult
related changes in spermatogenic process of the
freshwater crab Travancoriana schirnerae using histological
methods. The annual spermatogenic process
revived during March/April with gonadal proliferation
and division of spermatocytes and attained its
peak in May/June with acini containing mature
sperms. A decline in activity was detectable during
July/August, that corresponded to the mating season
with inactive and resting secondary spermatocytes
and spermatozoa. From September to February, the
testis remained inactive, enclosing pycnotic gonia,
spermatocytes and degenerating residual sperms.
The premoult and postmoult testes exhibited inactivity
with pycnotic gonia, spermatocytes and residual
sperms whereas the intermoult testes appeared
active with gonial proliferation, meiotic
spermatocytes and mature spermatozoa. It has also
been observed that there exists an antagonism
between growth and reproduction in this species
Description
Keywords
Acini, spermatogonia, spermatozoa, spermatogenesis, Travancoriana schirnerae
Citation
Fishery Tech 53 (1) : 1 - 8