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Title: 陸奥湾におけるカナガシラ成魚の生活年周期と分布
Other Titles: Annual Life Cycle and Distribution of Adult Gurnard Lepidotrigla microptera in Mutsu Bay, Aomori Prefecture
Authors: 藤岡, 崇1 Browse this author
高橋, 豊美2 Browse this author →KAKEN DB
前田, 辰昭3 Browse this author →KAKEN DB
中谷, 敏邦4 Browse this author →KAKEN DB
松島, 寛治5 Browse this author
Authors(alt): Fujioka, Takashi1
Takahashi, Toyomi2
Maeda, Tatsuaki3
Nakatani, Toshikuni4
Matsushima, Hiroharu5
Issue Date: 1990
Publisher: 日本水産学会
Journal Title: 日本水産学会誌
Journal Title(alt): Bulletin of the Japanese Society of Scientific Fisheries
Volume: 56
Issue: 10
Start Page: 1553
End Page: 1560
Publisher DOI: 10.2331/suisan.56.1553
Abstract: The annual life cycle and distribution of adult Lepidotrigla microptera were studied in the Mutsu Bay, Aomori Prefecture. The seasonal changes in gonadosomatic index, hepatosomatic index, condition factor, and stomach contents index of samples obtained by experimental bottom trawls from March 1986 to July 1988 indicated that the annual life cycle of adult L. microptera was divided into the following four periods; wintering period (December-March), preparatory period for spawning (April-May), spawning period (June-August), and preparatory period for wintering (September-November). The habitat of L. microptera in this study area was not confirmed. However, at least a part of them were concentrated in relatively warm waters (6~9℃), i.e. the mouth of the bay in winter. In spring, most of them moved to the western part of the bay (West Bay) with rising bottom water temperature. In summer their habitat spread over the bay, and the fish concentrated toward the mouth of the bay in autumn. The annual life cycle and the space utilization pattern of adult L. microptera are thus associated greatly with seasonal changes in the bottom temperature.
Rights: © 1990 公益社団法人日本水産学会
© 1990 The Japanese Society of Fisheries Science
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高橋 豊美

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