Effects of salinity fluctuation amplitudes on growth, osmolarity, Na+-K+-ATPase activity and Hsp70 of juvenile Chinese shrimp Fenneropenaeus chinensis Osbeck
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Effects of salinity fluctuation amplitudes on growth, osmolarity, Na+-K+-ATPase activity and Hsp70 of juvenile Chinese shrimp Fenneropenaeus chinensis Osbeck
Journal of Oceanology and LimnologyVol. 27, Issue 4, Pages: 723-728(2009)
Affiliations:
The Key Laboratory of Mariculture Ministry of Education Ocean University of China
Ding, S., Wang, F., Dong, S. et al. Effects of salinity fluctuation amplitudes on growth, osmolarity, Na+-K+-ATPase activity and Hsp70 of juvenile Chinese shrimp Fenneropenaeus chinensis Osbeck., Chin. J. Ocean. Limnol. 27, 723–728 (2009). https://doi.org/10.1007/s00343-009-9185-0
DOI:
Ding, S., Wang, F., Dong, S. et al. Effects of salinity fluctuation amplitudes on growth, osmolarity, Na+-K+-ATPase activity and Hsp70 of juvenile Chinese shrimp Fenneropenaeus chinensis Osbeck., Chin. J. Ocean. Limnol. 27, 723–728 (2009). https://doi.org/10.1007/s00343-009-9185-0DOI:
Effects of salinity fluctuation amplitudes on growth, osmolarity, Na+-K+-ATPase activity and Hsp70 of juvenile Chinese shrimp Fenneropenaeus chinensis Osbeck
摘要
Abstract
The effects of various salinity fluctuation amplitudes (2
4
6 and 8) on the growth
osmolarity
Na+-K+-ATPase activity and Hsp70 of juvenile Fenneropenaeus chinensis cultured in seawater with a salinity of 20 were studied. The results show that weight gain in the salinity fluctuation treatments was better than that in control; in particular
the weight gain of treatments S4 and S0
at 231.8% and 196.3%
respectively
was significantly different (P<0.05). The hemolymph osmolarity of treatments S0
S2
S4
S6 and S8 was 635.4
630.8
623.6
614.4 and 600.3 mOsm/kg
respectively
and decreased with increasing salinity fluctuation amplitude. The level of Na+-K+-ATPase activity in gills of F. chinensis was higher than that in hepatopancreas
but there were no significant differences among all treatments
either in gills or hepatopancreas (P>0.05). The relative level of Hsp70 in treatment S4 was 48.4% and 40.4% higher than control in muscle and eyestalks
respectively
with the highest values being recorded under a salinity fluctuation amplitude of 4.
关键词
Keywords
references
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