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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    Records 1 - 4 / 4

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    An analysis of mussel bed habitats in the Dutch Wadden Sea
    Brinkman, A.G. ; Dankers, N.M.J.A. ; Stralen, M. van - \ 2002
    Helgolander Marine Research 56 (2002)1. - ISSN 1438-387X - p. 59 - 75.
    fauna - aquatische ecologie - fauna - kust - mosselen - schelpdieren - Waddenzee
    A habitat suitability analysis for littoral mussel beds in the Dutch Wadden Sea was carried out. The analysis was based on the presence of mussel beds in the years 1960-1970, and a number of environmental characteristics: wave action, flow velocity, median grain size, emersion times and distance to a gully border. The habitat model describes mussel bed appearance quantitatively. It predicts the distribution of mussel beds quite well, as well as the distribution of spatfall in the years 1994 and 1996.From the analysis we found that wave action (maximum orbital velocity) was the main structuring factor. A low orbital velocity was preferred. Neither very low, nor maximum flow velocities were favourable for mussel beds. Very coarse sands or silty environments were not preferred. Sites close to the low water line showed lower mussel bed appearance; when emersion time was above 50% , hardly any mussel beds could be found. The habitat suitability analysis and the construction of a habitat suitability map was performed in the framework of the discussions on a further or reduced exploitation of the tidal flats in the Dutch Wadden Sea by cockle and mussel fishery activities.
    Recovery of intertidal mussel beds in the Waddensea: use of habitat maps in the management of the fishery
    Dankers, N.M.J.A. ; Brinkman, A.G. ; Meijboom, A. ; Dijkman, E.M. - \ 2001
    Hydrobiologia 465 (2001). - ISSN 0018-8158 - p. 21 - 30.
    fauna - aquatische ecologie - fauna - kust - mosselen - schelpdieren - visserij - Waddenzee
    In the Waddensea, musselbed distribution and abundance has decreased. Management is aiming at increase of area of beds. Fisheries have been regulated. Mussel beds are slowly recovering, and localities where recovery occurs can be predicted reasonably well. Active restoration of beds has not been necessary, as long as newly formed beds are protected from fisheries. Potential suitable sites should be protected from bottom-disturbing activities which might influence the substrate for spatfall such as cockle beds and tube-building polycheates.
    Diet (preferences) of common eiders Somateria mollissima
    Leopold, M.F. ; Kats, R.K.H. ; Ens, B.J. - \ 2001
    Wadden Sea Newsletter (2001)1. - ISSN 0922-7989 - p. 25 - 31.
    fauna - ecologie - eidereend - ornithologie - schelpdieren - watervogels - Waddenzee
    Korte termijn advies voedselreservering Oosterschelde; samenvattende rapportage in het kader van EVAII
    Bult, T.P. ; Ens, B.J. ; Lanters, R.L.P. ; Smaal, A.C. ; Zwarts, L. - \ 2000
    [Den Haag] [etc.] : RIKZ [etc.] - 60
    schaaldieren - mossels - vogels - voedering - nederland - oosterschelde - aquatische ecologie - fauna - schelpdieren - watervogels - Zeeland - shellfish - mussels - birds - feeding - netherlands - eastern scheldt - fauna
    In 1999 is na een tussentijdse evaluatie het beleidsbesluit Schelpdiervisserij Kustwateren 1999-2003 vastgesteld. Dit hield o.a. in dat het voedselreserveringsbeleid dat in de periode 1993-1998 van kracht was voor de Oosterschelde, werd gewijzigd: De hoeveelheid voedsel die in de periode voor 1999 werd gereserveerd voor vogels in de Oosterschelde, was gerelateerd aan de gemiddelde voedselbehoefte van de vogels die eind jaren 80 in dit gebied aanwezig waren. Deze gemiddelde voedselbehoefte was vastgesteld op 3,4 miljoen kilo kokkelvlees en 1,3 miljoen kilo mosselvlees
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