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Batrachocottus baicalensis, endemic to Lake Baikal, Russia, has wider lateral line canals thanParacottus kneri, which also inhabits Siberian streams. In quiet waterB. baicalensisresponded to amphipods at a greater distance than didP. kneri.Batrachocottus baicalensisalso moves less often from search positions than doesP. kneri. Fish responded to faster moving prey at a greater distance than slower...
The ruffeGymnocephalus cernuusand the yellow perchPerca flavescens(both Percidae), have very different cephalic lateral line systems. The ruffe, which is nocturnal and frequents turbid water, has a cephalic lateral line with very wide canals, large neuromasts, and membranes covering the canal openings. This anatomy is convergent with that of many deep-sea fishes. The yellow perch has a lateral line...
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