期刊
AQUACULTURE INTERNATIONAL
卷 16, 期 2, 页码 143-152出版社
SPRINGER
DOI: 10.1007/s10499-007-9133-y
关键词
energy budget; Manila clam; Ruditapes philippinarum; temperature; metabolism
类别
资金
- National Research Foundation of Korea [과C6A2604] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, the energy budget of the Manila clam, Ruditapes philippinarum, was evaluated after one-week acclimation periods at 5, 10, 15, 20, and 25 degrees C. Small clams (151 +/- 12 mg DW) and large clams (353 +/- 16 mg DW) were fed with the microalgae, Isochrysis galbana. Filtration rate, ingestion rate, assimilation efficiency, oxygen-consumption rate, and ammonia excretion rate were measured. Both filtration rate and ingestion rate of small and large clams were found to be related to temperature. The highest Q (10) values were measured in the range 15-20 degrees C for both small and large clams. Assimilation efficiency of both small and large clams was not significantly influenced by temperature, although the maximum mean values were detected at 20 degrees C. Oxygen consumption rate and ammonia excretion rate of small and large clams were found to be related directly to temperature over the entire range, with a maximum being detected at 25 degrees C. The highest Q(10) value was estimated in the range 10-15 degrees C with regard to oxygen consumption rate, and in the range of 15-20 degrees C with regard to ammonia excretion rate. Scope for growth (SFG) was positive at all temperatures, achieving a maximum value at 20 degrees C in both small and large clams, primarily as a consequence of the enhanced ingestion rate which offset the concomitant elevation in the metabolic rate. In this study we have estimated the thermal optimum for this species at 20 degrees C.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据