Effect of Body Weight on Reproduction and Mobilization of Organic Reserves in Female Sailfin Molly Mollienesia latipinna (Le Sueur)
Effect of Body Weight on Reproduction and Mobilization of Organic Reserves in Female Sailfin Molly Mollienesia latipinna (Le Sueur)
Date
2005
Authors
James, R
Sampath, K
Karoline, A. Rose Malar
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Reproduction and mobilization of nutrients and energy for reproduction were studied
in female Mollienesia latipinna as a function of body weight. Total reproduction (TR),
reproductive effort (RE) and somatic condition factor (SCF) increased with increase in body
weight. Gonad was not developed in the smallest female tested (0.313 g) and gonad weight
was highest before parturition (breeding) and it significantly declined after varied parturition.
The proximate composition and energy in somatic and gonad tissues varied with increase
in body weight of female M. latipinna and if suggests the deposition of nutrients with the
advent of the reproductive period. Low level of lipid in soma and high level of lipid in female
gonads indicate the mobilization of lipid from soma to gonad to provide nutrients for the
development of eggs and fry. Nutrients and energy were more in soma and gonad before
parturition and they significantly reduced after parturition. M. latipinna being an ovoviviparous
fish, utilized significant amount of nutrients and energy for the development of
ova, egg and fry which led to the reduction of energy contents after parturition
Description
Keywords
Reproductive analysis, nutrients, energy, mobilization, Mollienesia latipinna
Citation
Fishery Tech 42(1):21-26