Survival, growth and body composition of Cyprinus carpio under different levels of temperature and salinity

Abstract

Cyprinus carpio fingerlings were taken to measure acute toxicity in a set of four concentrations with three acclimation in triplicate of rock salt at 35 °C temperature which was prepared in the glass aquaria of each having dimensions 30L × 30W × 45H cm (40.5 liters water capacity) for 96hrs. Five fishes were stocked in each aquarium. Observations on fish mortality in all aquaria was observed and recorded for 2 months to determine the salinity effect on growth parameters. Important physico-chemical parameters of aquaria water, such as temperature, dissolved oxygen, pH, electric conductivity, total dissolved solids and chloride were observed using professional meter (HANNA HI 9828). Rate of mortality was increased with the increase of salt and temperature. The statistical analysis of variance of pH and pH (mV) differences was highly significant among salt and time while less significant among temperature values.

Effect of Different Salinity Level on Breeding, Fertilization, Hatching and Survival of Nile Tilapia, Oreochromis niloticus (Linnaeus, 1758) in Captivity

“…These obsevations are in coincidence with the results of Abdel-Hakim et al (2008). Mubarik et al (2015) have documented survival rate (39.4%-91.0 %) of common carp fry on different rock salt concentration (0-30 mg/L). On the other hand, Brian (2015) reported survival rate of fry as 71.4% in Nile tilapia with subject to red background color of the tank.…”

Nuclear and Morphological Alterations in Erythrocytes, Antioxidant Enzymes, and Genetic Disparities Induced by Brackish Water in Mrigal Carp (Cirrhinus mrigala)

“…This is mostly due to the fact that greater salinity of water can operate as a significant stressor in both wild and farmed environments [ 14 ]. Furthermore, salinity has the ability to influence the metabolism of fish, which in turn has an impact on the survival, growth, feed intake, and even the geographic spread of fish species [ 15 , 16 ].…”