Observations on the settlement patterns of Janua (Dexiospira) brasiliensis (Polychaeta: Serpulidae) |
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| Authors: | Walter G Nelson |
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| Institution: | 1. Duke University Marine Laboratory, 28516, Beaufort, N. C.
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| Abstract: | The polychaete Janua (Dexiospira) brasiliensis (Grube) is shown to exhibit gregarious settling patterns on both natural (Zostera marina) and artificial (aquarium glass) substrates. J. (D.) brasiliensis tends to be found more often on older (=longer) Zostera blades and on the upper (=older) portions of the blades on which it is found, probably as a result of requiring a diatom mat before being able to settle on the Zostera surface. On both Zostera and the aquarium glass, J. (D.) brasiliensis forms small clumps (2 cm) with the animals within the clumps distributed at random. |
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