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東海におけるイモナマコの分布について


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Title: 東海におけるイモナマコの分布について
Other Titles: Distribution of "Imonamako" (Molpadiidae sp.) in the East China Sea
Authors: 矢田, 殖朗 / 高木, 保昌 / 兼原, 壽生 / 岡邊, 久輝 / 青島, 隆
Authors (alternative): Yada, Shigeaki / Takaki, Yasuaki / Kanehara, Hisao / Okabe, Hisateru / Aoshima, Takashi
Issue Date: Mar-1991
Publisher: 長崎大学水産学部
Citation: 長崎大学水産学部研究報告, v.69, pp.21-34; 1991
Abstract: Many discarded creatures have been catched together with needed fishies by the bottom trawl. "Imonamako" (Molpadiidae sp.) are most frequrent in discarded creatures catched in the East China Sea. Thereupon, we have begun with investigating about the distribution of Imonamako for the purpose of studying the relation between Imonamako and needed fishes. 165 times of bottom trawl were carried out with the training ship Nagasaki-maru in about 3 years of November, 1990 from April, 1988 and 9,945 Imonamako were catched. Individual measurement was carried out about 534 of them. As a result, Imonamako were distributing and were concentrate on a radius about 100km range centering around Lat. 31°-30' N, Long. 126°-15' E. The situation was resembling to the distribution of mud and sandy mud. The high place of a distribution density was in the central part neighborhood. It was 5,029.40/km2. Imonamako were breeding in the greater part of the habitat. As for the mean body length of Imonamako 17.84cm (SD:2.75cm), the mean body breadth 6.71cm (SD:1.06cm) and alsomean weight 420.36g (SD:149.79g). The relationship between a body length and weight was W=0.5468×L².²⁸⁷ (r=0.8603) and significant with 95% level. Therefore, a body length shows the size of Imonamako.
Keywords: 東海 / East China Sea / イモナマコ / Molpadiidae sp. / 分布 / distribution / 長崎丸 / Nagasaki-maru
URI: http://hdl.handle.net/10069/29883
ISSN: 05471427
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:第69号

Citable URI : http://hdl.handle.net/10069/29883

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