LATERAL LINE RECEPTIVITY IN THE MOTTLED SCULPIN (COTTUS-BAIRDI)
LATERAL LINE RECEPTIVITY IN THE MOTTLED SCULPIN (COTTUS-BAIRDI)
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DOI：
10.2307/1444893
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发表时间：
1986-02-10
期刊：
影响因子：
2.6
通讯作者：
JANSSEN, J
中科院分区：
文献类型：
--
作者：
HOEKSTRA, D;JANSSEN, J
本文研究了斑点叉尾水蚤(Cottus Bairdi)对活体大型水蚤和惰性垂直振动水珠的侧线感受场。当刺激靠近头部或躯干时，两种刺激都会引起摄食反应，但对躯干附近刺激的反应仅延伸到侧线的后端(在柔软的背鳍之下)。与头部一侧相比，鼻子前面的区域对刺激的反应明显较弱。鱼钩击中猎物的区域(击打区域)略向嘴后方延伸，大型水蚤的平均面积为16.0mm2，珠子的平均面积为14.1mm2(均以四条鱼为基准)。在这个区域之外发现的猎物引起了鱼的重新定位，使猎物S原来的位置在打击区。
We studied the lateral line receptive field of the mottled sculpin (Cottus bairdi) to live Daphnia magna and to an inert vertically vibrating bead. Both stimuli elicited feeding responses when near the head or trunk but response to stimuli near the trunk extended only as far as the posterior limit of the lateral line (beneath the soft dorsal fin). The sculpin was significantly less responsive to stimuli for the region in front of the snout compared to the side of the head. The region in which the sculpin strikes (strike zone) at prey extended slightly posterior to the mouth and occupied a mean area of 16.0 mm2 for Daphnia, 14.1 mm2 for the bead (both based on four fish). Prey detected outside this region elicited repositioning by the fish so that the prey''s original location was in the strike zone.