2 0 0 0 OA サケ科魚類の川下りの生態と生理学
- 著者
- 岩田 宗彦
- 出版者
- 農林水産技術情報協会
- 巻号頁・発行日
- vol.17, no.2, pp.7-15, 1994 (Released:2011-03-05)
2 0 0 0 OA 日本の北部海域で産卵するニシン地域性集団間の遺伝的分化
- 著者
- 小林 時正 岩田 宗彦 沼知 健一
- 出版者
- 公益社団法人 日本水産学会
- 雑誌
- 日本水産学会誌 (ISSN:00215392)
- 巻号頁・発行日
- vol.56, no.7, pp.1045-1052, 1990-07-25 (Released:2008-02-29)
- 参考文献数
- 31
- 被引用文献数
- 5 7
Multi-loci analysis coding to isozymes was made of 7 spawning populations of Pacific herring Clupea pallasi collected from 2 coastal waters (oceanic type) and 5 brackish waters (brackish type) in the northern Japan. Genetic polymorphisms were observed at 19 loci among 29 loci coding isozymes by starch gel electrophoresis. Greater degrees of polymorphic varia-tions were observed at the 4 loci in GPI, IDH, ME, and PGM. Average heterozygosities were significantly lower in the oceanic type than those of brackish type. Results of a contigency X2 analysis for homogeneity of allele frequencies over all loci of the samples suggested that these 7 populations are genetically isolated each other. However, the level of genetic distance (D) between them was rather low (D=0.0004-0.0035) and the level of differentiation between samples was estimated to be almost the same as those of local populations of other fish species so far reported. The 7 herring samples were clustered into 2 groups at the D value 0.0024. The first is the oceanic type including two local populations Ishikari and Mangoku-ura and the latter is the brackish type including five local populations Saroma, Notoro, Furen, Yudo and Obuchi.
- 著者
- 岩田 宗彦
- 出版者
- 農林水産技術情報協会
- 雑誌
- 農林水産技術研究ジャ-ナル (ISSN:03879240)
- 巻号頁・発行日
- vol.17, no.2, pp.p7-15, 1994-02
