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 327410
Title Population dynamics and spawning of the flatfish Solea bleekeri and Pseudorhombus arsius in the intertidal area of Inhaca Island, Mocambique
Author(s) Boer, W.F. de; Schie, A.M.P. van
Source African Journal of Marine Science 25 (2003). - ISSN 1814-2338 - p. 49 - 60.
DOI https://doi.org/10.2989/18142320309504000
Department(s) Wildlife Ecology and Conservation
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) lake st-lucia - south-african estuaries - juvenile flatfish - ecological observations - southeastern coast - food resources - surf zone - fish - mozambique - teleostei
Abstract The population dynamics of flatfish Solea bleekeri and Pseudorhombus arsius within the intertidal area of Inhaca Island, Moçambique, was investigated using bottom trawl data collected during summer (December 1996 – March 1997) and winter (June 1997 – August 1997). The endemic S. bleekeri is a small, relatively slowgrowing species with low rates of natural mortality. Densities of juveniles were significantly greater in winter (24.7 fish 1 000 m-2) than in summer (10.8 fish 1 000 m-2), probably because of intensive spawning during summer. Greater catches of S. bleekeri were taken by night than by day. Densities of P. arsius did not differ significantly between day and night or among seasons. Mean density of P. arsius was 53 fish 1 000 m-2 for the survey. Both species preferred the same substrata, significantly greater densities being found on the mudflats and in the tidal channels. Both seem to complete two life cycles within a year.
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