Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 65752
Title Body size and swimming types in carp larvae : effects of being small
Author(s) Osse, J.W.M.; Boogaart, J.G.M. van den
Source Netherlands Journal of Zoology 50 (2000)2. - ISSN 0028-2960 - p. 233 - 244.
Department(s) Experimental Zoology
Publication type Refereed Article in a scientific journal
Publication year 2000
Abstract The viscosity of water is a major hydrodynamic force and especially important for tiny objects (on or below a mm scale) moving at low speeds. Fish larvae between 4.8 and 8.1 mm total length (TL) are of intermediate size. During their growth the flow while swimming becomes dominated by inertial instead of viscosity forces. The present paper presents changes in beat frequency, wave speed, absolute speed, distance covered per swimming cycle and the distribution of body curvature along the trunk during larval growth. Just hatched larvae show only one type of swimming but further types develop during growth. Early wriggling (resistive) swimming is rapidly replaced by beating with tail and tail fin suggesting the increasing dominance of inertial hydrodynamic forces. Similar movements as in the 4.8 mm larvae are found in the first body wave of bigger larvae thus strengthening the hypothesis of the changing relationship between viscosity effects and swimming motion with size.
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