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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
Peer-reviewed Journal Articles, etc >
陸奥湾におけるマガレイおよびマコガレイの食物をめぐる種内の関係
| Title: | 陸奥湾におけるマガレイおよびマコガレイの食物をめぐる種内の関係 |
| Other Titles: | Intraspecific Relationships for Food in Righteye Flounders Limanda herzensteini and L. yokohamae in Mutsu Bay |
| Authors: | 高橋, 豊美1 Browse this author |
| Authors(alt): | Takahashi, Toyomi1 |
| Issue Date: | 1987 |
| 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: | 53 |
| Issue: | 2 |
| Start Page: | 189 |
| End Page: | 194 |
| Publisher DOI: | 10.2331/suisan.53.189 |
| Abstract: | Intraspecific relationships for food in righteye flounders Limanda herzensteini and L. yokohamae in Mutsu Bay, Aomori Prefecture, were studied. In both species, body length distributions did not differ very much among sea areas. In spring (May), the size (by wet weight) of prey in L. herzensteini stomachs was independent of fish length. But in summer, the prey size ingested by L. herzensteini became larger sequentially with increase of fish length, indicating the existence of strong size selection for prey. The same was apparent for L. yokohamae. Intensity of size selection of both species was closely related to the food availability and the intensity of food requirement in relation to their annual life period. Namely, the size selection was found as high abundance of food and inactive feeding of fish. These results suggested that the intraspecific competition for food in L. herzensteini may possibly occur in spring but in summer it becomes weak because they ingested prey of different size with fish length. On the other hand, for L. yokohamae, considering that in spring the kind of prey ingested by them depended on fish length, it seems probable that there is less likelihood of intraspecific competition for food at least during spring and summer. |
| Rights: | © 1987 公益社団法人日本水産学会 | | © 1987 The Japanese Society of Fisheries Science |
| Type: | article |
| URI: | http://hdl.handle.net/2115/38661 |
| 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)
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Submitter: 高橋 豊美
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