Sensory integration in the hydrodynamic world of rainbow trout

Water movements, of both abiotic and biotic origin, provide a wealth of information for fishes. They detect these water movements by arrays of hydrodynamic sensors located on the surface of the body as superficial neuromasts and embedded in subdermal lateral line canals. Recently, the anatomical dic...

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Bibliographic Details
Published in:Proceedings of the Royal Society. B, Biological sciences Biological sciences, 2003-11, Vol.270 (Suppl 2), p.S195-S197
Main Authors: Montgomery, J. C., McDonald, F., Baker, C. F., Carton, A. G., Ling, N.
Format: Article
Language:English
Subjects:
Animals
Canals
Fish
Fishing lines
Freshwater
Hair cells
Hydrodynamic
Hydrodynamics
Lateral Line
Marine fishes
neuromasts
Oncorhynchus mykiss
Oncorhynchus mykiss - physiology
Orientation - physiology
Predatory Behavior
Rheology
Sensors
Sensory Receptor Cells - physiology
Trout
Water currents
Water flow
Water Movements
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Summary:Water movements, of both abiotic and biotic origin, provide a wealth of information for fishes. They detect these water movements by arrays of hydrodynamic sensors located on the surface of the body as superficial neuromasts and embedded in subdermal lateral line canals. Recently, the anatomical dichotomy between superficial and canal neuromasts has been matched by demonstrations of a corresponding functional dichotomy. Superficial neuromasts are sensitive to water flows over the surface of the fish and are the sub-modality that participates in orientation to water currents, a behaviour known as rheotaxis. The canal neuromasts are sensitive to water vibration and it is this sub-modality that determines the localization of artificial prey. Recently, however, it has been shown that the complex behaviour of natural prey capture in the dark requires input from both lateral line sensory submodalities and here we show that the ability of trout to hold station behind a stationary object in fast flowing water also requires integration of information from both sub-modalities.
ISSN:0962-8452
1471-2954
DOI:10.1098/rsbl.2003.0052