A total of 410 Sardinella aurita Fish , were collected from Syrian coast during the
period from April 2014 to March 2015.Total length and weight ranged between 81 – 270
mm, 6.94 –137.29g respectively. The aim of present study was to illustrated som
e aspects
of reproduction biology for Sardinella aurita. .
Gonads Somatic Index (G.S.I.) for female and male recorded highest value in early
June 4.22 and 5.80 respectively. Male and females round sardinella reach first sexual
maturity at total length (17.97 cm and 18.67 cm respectively).
Mean absolute fecundity (FA) increased with body length ( ) and
weight ( ), with an average of 20714.79 ±4876.21 oocytes produced per
spawning female. Relative fecundity (FR) ranged between 242 and 285 oocytes/g of body
weight (average: 266.17 ±21.49 oocytes/g).
The study on the frequency distribution of eggs diameters revealed the presence of
one beak of sardinella aurita. The egg diameters of sardinella aurita ranged between
0.2mm -0.7mm with an average 0.45±0.18 mm.
This study has been carried out on Saddled bream , from the
family of Sparidae, which was caught from the coastal waters of
Tartous province.
The results showed that, Saddled bream reached at the fifth stage
of sexual maturity during April and May for males and females,
and the study of the sexual maturity index GSI confirmed these
results.
This study was done to evaluate reproductive potential of male mice following
early exposure to dimethoate. Thirty-six Swiss albino male mice were divided
into three groups of twelve mice each: first group injected intraperitoneally with
distilled
water, and used as a control group, while second and third groups injected
with dimethoate at doses of 0.1 and 0.2 ml dimethoate/100 ml distilled water,
respectively for 7 days. At the end of experiment, the mice were weighed and then
were killed. Testis and epididymis weights were recorded, sperm parameters were
evaluated.
