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黑鲪生态生长效率周年变化的研究
李军^1,2, 杨纪明^1,2, 孙作庆^1,2
1.中国科学院海洋研究所青岛;266071

摘要:

于1983年12月 - 1984年5月和1990年6月 - 1991年1月以中国科学院海样研究所生物培育楼养殖黑鲪为材料，进行黑鲪周年的摄食–生长实验，以探讨其生态生长效率变化规律。结果表明，作为冷温性鱼，黑鲪在4.0－27.3℃水温条件下都有摄食；平均日摄含量为2.4－10.0g，相对体重的百分比为1.1%－4.4%，这二者的周年变化趋势基本一致；平均体重日增长量以4，6，7月和10－12月份较高。生态生长效率波动于6.5%－34.7%范围内，年平均为16.7％。

关键词: 黑鲪生态生长效率周年变化

DOI：

分类号:

基金项目:国家自然科学基金资助项目，38970586号

MONTHLY CHANGES OF ROCK FISH ECOLOGICAL GROWTH EFFICIENCY IN ONE YEAR

Li Jun,Yang Jiming,Sun Zuoqing

Institute of Oceanology, Academia Sinica, Qingdao 266071

Abstract:

Feeding-growth experiments on rock fish (Sebastodes fuscescens H.) were carried out at 4.0 - 27.3°C of seawater temperature during Dec., 1983 - May, 1984 and Jun., 1990 - Jan., 1991. The results were as follow:

1. The mean daily food consumption (2.4 - 10.0 g) and this consumption as a proportion of experiment fish body weight (1.1% - 4.4%) have remarkable monthly changes and similar trends. The suitable feeding temperature of this fish is from 8°C to 25°C and feeding intensity would be very low outside this range.

2. The monthly changes of rock fish ecological growth efficiency range from 6.5% - 34.7% (16.7% in average).

3. The mean daily increments of body weight in April, June, July and October - December were higher than that of the other months and the peak months of rock fish feeding and growth were October - December.

Key words: Sebaszodcs fusccscens, Ecological growth efficiency, Monthly change

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