著者
土田 真二 藤原 義弘 藤倉 克則
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.58, pp.84-88, 2003-06-27
被引用文献数
4 8 1

The spatial distribution around hydrothermal vents, population structure, and relative growth parameters of the galatheid crab Shinkaia crosnieri were examined. Surveys were done by the Shinkai 2000 on the Hatoma and Dai-yon Yonaguni Knolls in the southern Okinawa Trough. On the Hatoma Knoll, S. crosnieri inhabited areas (temp. 4.0-6.2°C) about 0.2-2 m away from the active vent (temp. 301°C). In the outer area of the habitat of S. crosnieri (temp. 3.0-3.7°C), dense beds of Bathymodiolus mussels occurred and aggregations of Alvinocaris shrimp were observed. In this survey, 248 specimens of S. crosnieri were collected. Small, probably just post-metamorphic juveniles and large, mature adults co-occurred. Chelipeds of males were proportionally larger than those of females, while abdomens of females were proportionally larger than those of males. Larger chelipeds in males are thought to have evolved through male-male competition for females, and wider abdomens in females are thought to be related to the attachment of fertilized eggs to the abdominal appendages.

言及状況

外部データベース (DOI)

Twitter (1 users, 2 posts, 0 favorites)

こんな論文どうですか? 南部沖縄トラフに生息するゴエモンコシオリエビ Shinkaia crosnieri (十脚目 : 異尾下目 : コシオリエビ科)の分布と個体群構造(土田 真二ほか),2003 https://t.co/rabDxy2F7l
こんな論文どうですか? 南部沖縄トラフに生息するゴエモンコシオリエビ Shinkaia crosnieri (十脚目 : 異尾下目 : コシオリエビ科)の分布と個体群構造(土田 真二ほか),2003 http://t.co/bWGUAd2Mfm

収集済み URL リスト