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Title: 北海道知床産の大型のベニクラゲ(ヒドロ虫綱, 花クラゲ目)
Other Titles: A large type of Turritopsis medusae (Hydrozoa, Anthomedusae) from Shiretoko, Hokkaido, Japan
Authors: 久保田, 信  kyouindb  KAKEN_id
Author's alias: Kubota, Shin
Keywords: Turritopsis medusa
Sea of Okhotsk
northern Japan
Issue Date: 20-Dec-2012
Publisher: 日本生物地理学会(The Biogeographical Society of Japan)
Journal title: 日本生物地理学会会報
Volume: 67
Start page: 223
End page: 225
Abstract: A large type of mature medusae of Turritopsis sp. was collected from Shari harbor, Shiretoko, Hokkaido, Japan in early October, 2011. Large specimens of them were 5.46-7.74 mm in umbrellar diameter with 119-216 tentacles of two or three whorls. This large type of this species of which female brooded larvae on manubrium is now known to be distributed at coasts of northern Japan facing the Sea of Okhotsk besides the Pacific Ocean and the Sea of Japan. The present species shows non-fulorescent GFP pattern like a small type of Turritopsis.
北海道知床斜里漁港で2011年10月初旬に大きな個体で直径5.46–7.74 mmのベニクラゲが採取され, 雌雄の成熟クラゲは触手が2–3環列で119–216本有していた. これらは太平洋産(千葉県から北海道まで)と日本海産(山形県から北海道まで)の大型のベニクラゲの個体変異と重なり,雌が幼生を保育する大型がオホーツク沿岸も含む北日本全体に分布していることが判明した. 本個体にはGFP蛍光が南日本産の小型種と同様に見られなかった.
Rights: © 日本生物地理学会
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