著者
小菅 丈治
出版者
日本貝類学会
雑誌
Venus (Journal of the Malacological Society of Japan) (ISSN:13482955)
巻号頁・発行日
vol.68, no.1-2, pp.67-70, 2009-09-30 (Released:2016-05-31)
参考文献数
8
被引用文献数
1

ブンブクヤドリガイ科アケボノガイ属の一種Barrimysia siphonosomae Morton & Scott, 1989を,石垣島名蔵湾から記録した。本種は,香港の砂泥質の干潟に棲息するスジホシムシモドキSiphonosomacumanenseの巣孔内に棲息することが知られ,石垣島名蔵湾でもサンゴ片などの礫混じりの砂泥干潟に棲息するスジホシムシモドキの巣孔内より見出された。日本からは初めての記録であり,ホシムシの一種の巣孔に棲む習性とアケボノガイ属の一種であることに因んで「ホシムシアケボノガイ」の新和名を提案した。模式産地以外から初めての記録でもあり,香港から琉球列島にかけて分布することが明らかになった。2008年8月に行った名蔵湾での観察結果では,採集したスジホシムシモドキの巣孔の15~17%にホシムシアケボノガイが生息していた。ホシムシアケボノガイは,多くの場合単独で生息していたが,2個体の貝が1つの巣孔から見つかる例も少数観察された。
著者
岩崎 敬二 木村 妙子 木下 今日子 山口 寿之 西川 輝昭 西 栄二郎 山西 良平 林 育夫 大越 健嗣 小菅 丈治 鈴木 孝男 逸見 泰久 風呂田 利夫 向井 宏
出版者
JAPANESE ASSOCIATION OF BENTHOLOGY
雑誌
日本ベントス学会誌 = Japanese journal of benthology (ISSN:1345112X)
巻号頁・発行日
vol.59, pp.22-44, 2004-07-28
被引用文献数
24 26

To investigate the invasion history and recent geographic distribution of marine organisms introduced to Japan or transferred domestically to non-native regions, a questionnaire survey on their occurrence in the field, including both published and unpublished records, was conducted in 2002-2003. A total of 105 taxa was reported by 94 respondents. According to three criteria, viz. known or unknown geographic origin, established invasion history, and presumed dispersal mechanisms associated with human activities, 42 taxa were designated as non-indigenous species introduced to Japan through human activities, 26 taxa as indigenous species that are distributed both in Japan and other countries but are introduced from abroad to Japan for fisheries or as fish bait, 20 taxa as cryptogenic species which are not demonstrably native or introduced, two taxa as non-indigenous species that have extended their range to Japan through natural dispersion, and one taxon as an indigenous species. The remaining 14 taxa were considered to have been transferred domestically to new areas. Analysis of the years of first record of 42 non-indigenous species suggests that the rate of invasion has increased over the past century, with seven or eight species being introduced per decade after 1960. Data on temporal change in geographic distribution revealed that many non-indigenous species have become widespread recently, from the Pacific coasts of central Japan to the coasts of the Sea of Japan or northward. However, the species listed in the present study are not exhaustive, and more extensive investigations covering all taxa and all presumed dispersal mechanisms are urgently needed before consideration of legislative management of introduced marine organisms.