Revis, N., J. Castel & M.L.M. Tackx. (1991). Some reflections on the structure of the mandible plate of Eurytemora affinis (Copepoda, Calanoida). Hydrobiological Bulletin, Amsterdam 25(1):45-50.
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Revis, N., J. Castel & M.L.M. Tackx
1991
Some reflections on the structure of the mandible plate of Eurytemora affinis (Copepoda, Calanoida).
Hydrobiological Bulletin, Amsterdam
25(1):45-50.
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The mandibleplates of several specimen of the copepod Eurytemora affinis collected from the Westerschelde and the Gironde estuary were studied. Using the 'Edge index' (ITOH, 1970) this species could be classified as an omnivore. Pictures obtained by light and scanning electron microscopy reveal that the mandible teeth of Eo affinis have a molar-like structure, which likely changes in functional morphology with developmental stage, sex and age of the adults. Based on these observations, the desirability to consider the three dimensional structure of copepod mandibles for feeding mode classification is discussed.
