Open AccessEffects of Salinity on Biogenic Amines, Hemolymph Osmotic Pressure, and Activity of Gill’s Na + /K + ‐ATPase in Charybdis japonica (Crustacea, Decapoda)
Author(s) -
HongYu Liu,
LuQing Pan,
Debin Zheng
Publication year - 2008
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.2008.00218.x
Subject(s) - hemolymph , biology , salinity , gill , japonica , osmoregulation , osmotic pressure , osmotic concentration , decapoda , sodium , hydrostatic pressure , crustacean , ecology , biochemistry , botany , fishery , chemistry , fish <actinopterygii> , physics , thermodynamics , organic chemistry
The effects of salinity on hemolymph osmotic pressure, gill Na + /K + ‐ATPase activity and dopamine (DA), norepinephrine (NE), serotonin (5‐HT) in the gills, and hemolymph of the adult Charybdis japonica were studied. DA levels increased significantly ( P < 0.05), while the NE and 5‐HT revealed contrary change in hemolymph and gills. The iso‐osmotic point of C. japonica (911.4 mOsm/kg) was at salinity of 27.87 ppt. The Na + /K + ‐ATPase activity of gill showed negative correlation with salinity in the hypotonic environment (<27.87 ppt). The results of this experiment indicated that C. japonica had great capability to acclimate to low salinity.