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Distribution and Migrations of two Cerithid Snails on a Sand Flat in Bermuda
Author(s) -
Wieser Wolfgang,
Grabner Manfred,
Koch Franz
Publication year - 1981
Publication title -
marine ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 58
eISSN - 1439-0485
pISSN - 0173-9565
DOI - 10.1111/j.1439-0485.1981.tb00091.x
Subject(s) - tidal flat , sediment , maxima , oceanography , maxima and minima , ecology , ecological niche , environmental science , geology , biology , paleontology , habitat , mathematics , mathematical analysis , art , performance art , art history
. Two species of cerithid prosobranchs, Baiillaria minima and Cerithium lutosum , live on a sand flat in Bermuda. The two species execute complex vertical migrations, but they respond differently to light intensity and to water level. This ensures that in the course of tidal and diurnal cycles their maxima of vertical distribution are sometimes in the same , sometimes in different layers of sediment. This leads to a partial separation of niches.