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Measuring selectivity of feeding by estuarine copepods using image analysis combined with microscopic and Coulter counting
Tackx, M.L.M.; Zhu, L.; De Coster, W.; Billones, R.G.; Daro, M.H. (1995). Measuring selectivity of feeding by estuarine copepods using image analysis combined with microscopic and Coulter counting, in: IZWO Coll. Rep. 25(1995). IZWO Collected Reprints, 25: pp. chapter 52
In: (1995). IZWO Coll. Rep. 25(1995). IZWO Collected Reprints, 25[s.n.][s.l.], more
In: IZWO Collected Reprints. Instituut voor Zeewetenschappelijk Onderzoek: Bredene. ISSN 0772-1250, more

Also published as
  • Tackx, M.L.M.; Zhu, L.; De Coster, W.; Billones, R.G.; Daro, M.H. (1995). Measuring selectivity of feeding by estuarine copepods using image analysis combined with microscopic and Coulter counting. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 52(3-4): 419-425, more

Available in  Authors | Dataset 
    VLIZ: Open Repository 100676 [ OMA ]

Keywords
    Estuarine organisms; Feeding behaviour; Image processing; Selective feeding; Acartia tonsa Dana, 1849 [WoRMS]; Copepoda [WoRMS]; Eurytemora affinis (Poppe, 1880) [WoRMS]; Marine

Authors  Top | Dataset 
  • Tackx, M.L.M., more
  • Zhu, L.
  • De Coster, W.
  • Billones, R.G.
  • Daro, M.H., more

Abstract
    Although estuarine zooplankters are generally believed to be detritivorous, high clearance rates by the estuarine copepods Eurytemora affinis and Acartia tonsa on natural estuarine microplankton have been reported in the literature. In order to enable detection of possible selectivity for these microplankton organisms over detritus, a method that measures clearance rates on total particulate matter is proposed. Image analysis is used to measure copepod gut contents, and combined with Coulter counter measurements of total particulate matter concentration, allows one to calculate clearance rates on the latter. The first results indicate that, in the Westerschelde estuary (SW Netherlands), both E. affinis and A. tonsa are capable of selecting dominant phytoplankton cells over the total particulate matter. The possibility of using image as a sole technique in these studies is discussed.

Dataset
  • Distribution of suspended matter in the Scheldt estuary and interaction with mesozooplankton, more

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