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International Journal on Algae

Publication de 4  numéros par an

ISSN Imprimer: 1521-9429

ISSN En ligne: 1940-4328

SJR: 0.168 SNIP: 0.377 CiteScore™:: 0.6 H-Index: 11

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The Role of Diatoms in Feeding of Clypeasteroids Scaphechinus mirabilis and Echinarachmus parma (Echinoidea, Clypeasteroida)

Volume 17, Numéro 3, 2015, pp. 263-273
DOI: 10.1615/InterJAlgae.v17.i3.70
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RÉSUMÉ

Algal flora of the coarse-grained sandy substrate and faeces of clypeasteroids Scaphechinus mirabilis (Agazzis, 1863) and Echinarachmus parma (Lamarck, 1818) living in Troitsa Bay, Sea of Japan, were studied. A total of 50 species of microalgae were recorded, most of them (42) belonging to Bacillariophyta. In the clypeasteroids faeces, diatoms were less diverse (27 species) when compared with a sandy substrate (50); most of the cells had chloroplasts, which provided evidence for selection of the clypeasteroids during feeding. High similarity of algae flora in S. mirabilis and E. parma faeces (0.97) indicated the similarity in food specialization of these clypeasteroids sharing the same ecological niche. The data largely confirmed the assumption of the essential role of diatoms in the feeding of clypeasteroid S. mirabilis.

CITÉ PAR
  1. Begun A. A., Ryabushko L. I., Benthic Diatoms of the Russian Waters of the Sea of Japan and Adjacent Sea Areas, Russian Journal of Marine Biology, 46, 4, 2020. Crossref

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