CHANGES OF OXYGEN-CONSUMPTION AND AMMONIA-N EXCRETION BY PENAEUS-CHINENSIS OSBECK AT DIFFERENT TEMPERATURE AND SALINITY LEVELS

被引：33

作者：

CHEN, JC

NAN, FH

机构：

来源：

JOURNAL OF CRUSTACEAN BIOLOGY | 1993年 / 13卷 / 04期

关键词：

D O I：

10.2307/1549101

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Both oxygen consumption (O-2 mg/g/h) and ammonia-N excretion (mg/g/h) by juveniles of Penaeus chinensis Osbeck (0.315 +/- 0.062 g) were higher at 25 degrees C than at 15 degrees C at salinities of 15, 20, 25, and 30 ppt. At both temperatures (15 degrees and 25 degrees C) measured at 15, 20, 25, and 30 ppt, oxygen consumption was highest at 30 ppt and lowest at 20 ppt. Ammonia-N excretion decreased with increasing salinity from 15-30 ppt at 15 degrees and 25 degrees C. The change in the ratio of oxygen consumed to nitrogen excreted by atom according to the increase of salinity indicated a shift in nutrient utilization from protein-dominated to lipid-dominated metabolism that was more marked at 15 degrees C than at 25 degrees C.

引用

页码：706 / 712

页数：7

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