Crustacean Zooplankton Was Studied In Five ponds In AL- Sinn's
Fish farm. As a one Of The Most Important components Fresh
Water Ecosystem . The samples of zooplankton were collected
During Period From November 2013 To March 2015, By One
Sampling a Month.
Through this study, the estimation of the accumulative concentration of
cadmium Cd and lead Pb in some organs of Barbus grypus fish hunt in Tigris –
Al-Rashidiyya district – Mosul, has been done. Also, the estimation has been
done in the tissues o
f Khawia armeniaca cestode by using Atomic absorption
CHOmeter where an abstracted difference (0.05) in the accumulative
concentration of cadmium and lead in the liver, Kidney, gills, muscles and
intestines of infected and uninfected fish. The accumulative concentration of
cadmium and lead in the tissues of parasites (300, 81.08) Mg/g respectively.
This study was conducted to investigate the effect of abrupt and gradual acclimation
of Liza aurata fingerlings to fresh water and gradual acclimation to a selected salinity 3‰.
L.aurata fingerlings were collected directly from the sea and duplicat
e groups of 30
fingerlings were distributed after rest to glass aquaria (100 liter capacity). The first group
was acclimated abruptly to fresh water, the second gradually to fresh water, the third was
acclimated gradually to 3‰ and the last group was left as control in sea water. The
fingerlings were fed artificial diet (35% protein and 500 kcal GE/100g), twice a day to
satiation for 75 days.
