Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 12 Issue 4
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- Pages.293-296
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- 1979
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
NITROGEN EXCRETION IN THE BIVALVE MOLLUSCS
이매패의 질소배설 2. 굴
- CHIN Pyung (Dept. of Fisheries Biology, Graduate School, National Fisheries University of Busan) ;
- LEE Bok Kyu (Dept. of Fisheries Biology, Graduate School, National Fisheries University of Busan)
- Published : 1979.12.01
Abstract
The effects of temperature and salinity on tile rates of ammonia and amino nitrogen excretion, and oxygen consumption were measured for Crassostrea gigas. There was variability with temperature and salinity changes in both the rates of nitrogen excretion and the proportionality between ,ammonia and amino acids in the excreta, and also in the rates of oxygen consumption. Rates of nitrogen excretion and oxygen consumption were markedly decreased with increase in salinity, especially at high salinity-high temperature, whereas at low salinity-high temperature condition they were significantly increased. These changes are considered as the responses of physiological tolerances to the high temperature stress and the results of the metabolic temperature compensation at the low salinity-high temperature condition. Most of nitrogenous excretory products was ammonia, and large amounts of amino-nitrogen was excreted, and especially the rate of amino-nitrogen excretion was dominant at
굴(Crassostrea gigas)의 질소배설과 산소소비에 미치는 수온 및 염분의 상호영향을 조사한 결과는 다음과 같다. 1. 굴은 수온과 염분변화에 따라 질소배설율과 배설암모니아 및 아미노산간의 배설비에 현저한 변동을 보였으며 산소소비량에도 역시 많은 변동을 보였다. 2. 질소배설율과 산소소비율은 염분이 증가함에 따라 특히 고염분일 때 고수온
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