This study aims to explain the effect of salt stress on Grass carp Ctenopharyngodon idella. It includes two parts, first determine LC50 during abrupt increase in salinity 5,10 and 15g/L.While other part concerned with physiological effects gradual 5 10 g/L osmoregulation, by measuring ions concentration ( Na+, K+ ) blood plasma muscles, water contents muscles , numbers percentage chloride cells...

Osmoregulation was studied in the zoeal stages I and VI, the first decapodid, the first juvenile, and in adults of the palaemonid shrimp Palaernonetes argentinus. The larvae hatch in freshwater creeks or in adjacent brackish coastal lagoons of the warm temperate southwestern coast of the Atlantic Ocean; larval development is possible in low salinities. To cope with these demanding environments,...

Studies of osmoregulation in marine and particularly fresh water elasmobranchs have been intermittently reported in the literature over the last 80 years. Although there has been significant research on elasmobranch osmoregulation, no study exists uniting the previous work into a single comprehensive report. This study examines previous research in elasmobranch osmoregulation and presents the r...

The molecular mechanisms of animal cell osmoregulation are poorly understood. Genetic studies of osmoregulation in yeast have identified mucin-like proteins as critical regulators of osmosensitive signaling and gene expression. Whether mucins play similar roles in higher organisms is not known. Here, we show that mutations in the Caenorhabditis elegans mucin-like gene osm-8 specifically disrupt...