Tilting Behaviour, a Fear Response to Frightening Stimuli, as a Possible Predictive Index for Stocking Effectiveness in the Juveniles of Red Sea Bream Pagrus major.
Tilting Behaviour, a Fear Response to Frightening Stimuli, as a Possible Predictive Index for Stocking Effectiveness in the Juveniles of Red Sea Bream Pagrus major.
复制标题
倾斜行为，对可怕刺激的恐惧反应，作为红鲷幼鱼放养效果的可能预测指标。
DOI：
10.2331/suisan.59.991
复制
发表时间：
1993
影响因子：
0.4
通讯作者：
K. Tsukamoto
中科院分区：
文献类型：
--
作者：
K. Uchida;H. Kuwada;K. Tsukamoto
在实验池中释放的一些红鲷个体聚集并倾斜它们的身体在底部，显示出黑色条纹并伸展它们的鳍。这种“倾斜行为”在较大的鱼群（全长40毫米）中观察到的时间较长，比例较高，而在较小的鱼群（全长12毫米和20毫米）中观察到的时间较长。在相同大小的群体（80 mm TL）中，个体从倾斜行为中恢复所需的时间不同。具有表现出倾斜行为的强烈倾向的鱼（其表现出倾斜行为的时间较长）不被3+红鲷（340- 390 mm TL）吃掉，而更快恢复的鱼（具有表现出倾斜行为的弱倾向）被吃掉。具有较强的倾向，表现出倾斜的行为在实验水箱中的鱼组表现出较高的rerapture率（15.1%）时，在现场释放比鱼的弱趋势（8.9%）。倾翻行为被认为是对恐惧刺激的一种恐惧反应，可以作为衡量真鲷幼鱼品质和放养效果的一个预测指标。
Some individuals of the red sea bream released in an experimental tank aggregated and tilted their bodies on the bottom, exhibiting dark stripes and stretching their fins. Such "tilting behaviour" was observed for longer times and higher ratios in larger fish groups (40mm in total length) than in smaller ones (12mm and 20mm TL). The recovery time from tilting behaviour was different among individuals in the same size group (80mm TL). The fish with a strong tendency to exhibit tilting behaviour, which exhibited tilting behaviour for longer times, were not eaten by 3+red sea bream (340-390mm TL), while the quicker recovering fish (with a weak tendency to exhibit the tilting behaviour) were eaten. A fish group with a stronger tendency to exhibit tilting behaviour in an experimental tank showed a higher rerapture rate (15.1%) when released in the field than fish with the weak tendency (8.9%). Tilting behaviour is regarded as a fear response to frightening stimuli and might be a predictive index for estimating fish quality and the stocking effectiveness of red sea bream juveniles.