The use of behavioural observations in the larviculture of cold-water marine fish
The use of behavioural observations in the larviculture of cold-water marine fish
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DOI：
10.1016/s0044-8486(97)00130-0
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发表时间：
1997-09-20
期刊：
影响因子：
4.5
通讯作者：
Kean, P
中科院分区：
文献类型：
--
作者：
Brown, JA;Wiseman, D;Kean, P
对海鱼幼体进行行为观察已有悠久的历史，使我们对鱼类幼体的生态适应有了更深入的了解。在海鱼育苗中，我们试图驯化野生动物。行为观察，结合生长和生存信息，是了解幼虫行为适应的有力工具。本文报道了两种海水仔稚鱼的初次摄食试验结果。圆鳍鱼（Cyclopterus lumpus）喂相同密度的活猎物脉冲（两次或三次/天）或连续进行的实验结果表明，生长和摄食行为显着较高的脉冲治疗。第二组实验是在大西洋白鲑（Anarhichas lupus）幼鱼断奶时进行的。活的猎物和颗粒状的食物提供给幼虫从第一次进食开始。对幼虫的观察表明，在最初的几周里，幼虫主要以活猎物为食，并有一些颗粒饲料。这种模式随着幼虫的生长而改变，到8周时，幼虫主要吃颗粒状饲料。在这个例子中，幼虫的行为提供了一个时间表，可以用来断奶的鱼从活的猎物颗粒食物。利用这些信息，现在可以改进这些物种的饲养方案。(C)出版社：Elsevier Science B.V.
The use of behavioural observations on marine fish larvae has a long history and has added considerable depth to our understanding of the ecological adaptations of larval fish. In marine fish larviculture we are trying to domesticate wild animals. Behavioural observation, in conjunction with growth and survival information, is a powerful tool for understanding the behavioural adaptations of larvae. This paper reports on the results of experiments conducted on the first-feeding of two species of marine larvae. Results of experiments carried out on lumpfish (Cyclopterus lumpus) fed the same density of live prey in pulses (twice or three times/day) or continuously, demonstrated that growth and feeding behaviour was significantly higher in the pulse treatments. A second set of experiments was performed on weaning of Atlantic wolffish (Anarhichas lupus) larvae. Live prey and pelleted food were offered to larvae from the onset of first-feeding. Observations on larvae indicated that over the first few weeks, larvae fed mostly on live prey with some pellet feeding. This pattern changed as larvae grew and by eight weeks larvae fed mostly on pelleted feed. In this example, the behaviour of the larvae provided a schedule which could be used to wean wolffish from live prey to pellet food. Using this information, improvements of the rearing protocols of these species may now be made. (C) 1997 Published by Elsevier Science B.V.