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タイトル: 相模湾に生息するウミウシ類(ドーリス目)の食性
その他のタイトル: Dietary habits of doridacean sea slugs of the Sagami Bay
著者: 渡辺, 麻実
Watanabe, Mami
大和田, 正人
Owada, Masato
金沢, 謙一
Kanazawa, Ken'ichi
キーワード: Doridacea
sea slug
発行日: 30-Jun-2009
出版者: 神奈川大学
抄録: Seven species of doridacean sea slugs and 14 species of sponges obtained from two habitats in Sagami Bay were used to examine whether each doridacean is monophagous on a specific sponge. Spicules of sponges contained from the guts of the sea slugs and those composed of sponge bodies were compared by SEM observation. As a result, Discodoris lilacina presumably feeds on Callyspongia confoederata and/or Haliclona permollis, and four species of sea slugs, Homoiodoris japonica, Dendrodoris rubra, Chromodoris orientalis, Hypselodoris festiva, probably feed on Halichondria okadai and/or Halichondria panicea, though H. festiva was previously thought to be monophagous on Dysidea sp. Platydoris speciosa is likely to feed exclusively on a single sponge species that was not collected in this study. Except for P. speciosa, the sea slugs examined here appeared to have fed on more than one sponge species.
ISSN: 1880-0483


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