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Shoaling Behaviour in a Mysid

Abstract

Mysidium columbiae (Zimmer) is common in shallow water in Kingston Harbour, Jamaica. It is found during the day in shoals close to the mangroves, usually but not exclusively in the shade of the trees. The shoals can be seen swimming horizontally a few centimetres below the surface of the water in a manner similar to shoals of small fish, for which indeed they were at first mistaken. The behaviour of Mysidium proves to be a combination of fixed responses to external stimuli and social responses by which the shoals are built up and maintained.

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STEVEN, D. Shoaling Behaviour in a Mysid. Nature 192, 280–281 (1961). https://doi.org/10.1038/192280b0

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