An experimental study of the effects of smallmouth bass on the behavior, growth and survival of prey fish
An experimental study of the effects of smallmouth bass on the behavior, growth and survival of prey fish
复制标题
小口黑鲈对被捕食鱼行为、生长和生存影响的实验研究
DOI：
10.1046/j.1444-2906.2002.00496.x
复制
发表时间：
2002
影响因子：
1.9
通讯作者：
Y. Aonuma
中科院分区：
文献类型：
--
作者：
O. Katano;Y. Aonuma
在人工池塘中，研究了黑鲈对被捕食鱼类（金鱼、香鱼和鲮鱼）的行为、生长和存活的影响。在大多数情况下，金鱼聚集时，smallmouthbass存在和不存在。在小嘴鲈鱼的存在下，阿鱼和日本？所有的猎物鱼喂底栖藻类或水生昆虫为主，其饮食组成没有受到影响的小口鲈鱼。在金鱼和日本的Dace，由每个人表现出的喂养行为的总数是显着减少在存在的smallmouth低音比在没有，在金鱼，生长速度时smallmouth低音存在。相比之下，小口鲈鱼的存在并没有影响无论是总的喂养行为或香鱼的增长速度。然而，香鱼被捕食的小嘴鲈鱼最频繁的三种猎物。小嘴鲈鱼倾向于捕食较小的个体，但香鱼并不比金鱼或日本？
The effects of smallmouth bass on the behavior, growth and survival of the prey fish (goldfish, ayu and Japanese dace) were examined experimentally in artificial ponds. In most cases, goldfish aggregated both when smallmouth bass were present and absent. Ayu and Japanese dace aggregated more frequently in the presence of smallmouth bass. All prey fish fed predominantly on benthic algae or aquatic insects and their dietary composition was not affected by smallmouth bass. In goldfish and Japanese dace, the total number of feeding acts exhibited by each individual was significantly less in the presence of smallmouth bass than in the absence and, in goldfish, the growth rate was less when smallmouth bass were present. In contrast, the presence of smallmouth bass did not affect either the total number of feeding acts or the growth rate of ayu. However, ayu were preyed on by smallmouth bass most frequently among the three prey species. Smallmouth bass tended to prey on smaller individuals, but ayu were not smaller than goldfish or Japanese dace.