Spawning migration and redd construction of Sakhalin taimen, Hucho perryi (Salmonidae) on northern Hokkaido Island, Japan

Spatial and temporal patterns of redd construction by Sakhalin taimen, Hucho perryi, were studied in small streams on northern Hokkaido, Japan. Spawning took place in late April with close relation to discharge patterns. Observed redd size (mean ± 95% C.I.) was 145 ± 11·8 cm in length and 84 ± 5·8 cm in width. The number of egg pockets per redd was either one or two, which is fewer than that of other salmonids reported in the literature. Spawning ground distributions in 1991 and 1992 were similar to each other in terms of the distribution mean and dispersion of the redds. Unlike other salmonids Sakhalin taimen probably constructed multiple redds during one spawning season.

[1]  Wayne A. Hubert,et al.  Description of Brown Trout Redds in a Mountain Stream , 1991 .

[2]  K. Maekawa,et al.  Spawning tactics of female Miyabe charr (Salvelinus malma miyabei) against egg cannibalism , 1990 .

[3]  J. Baglinière,et al.  Migratory and reproductive behaviour of female adult Atlantic salmon, Salmo salar L., in a spawning stream , 1990 .

[4]  D. T. Crisp,et al.  Observations on siting, dimensions and structure of salmonid redds , 1989 .

[5]  A. Jensen,et al.  Upstream migration of adult Atlantic salmon, Salmo salar L., in the River Vefsna, northern Norway , 1986 .

[6]  J. M. Elliott.  Numerical changes and population regulation in young migratory trout Salmo trutta in a Lake District stream, 1966-83 , 1984 .

[7]  Hugh R. MacCrimmon,et al.  Redd-site selection by brook trout and brown trout in southwestern Ontario streams , 1983 .

[8]  A. Clarke,et al.  Observations on the structure of brown trout, Salmo trutta Linnaeus, redds , 1981 .

[9]  S. Hawke.  Stranded redds of quinnat salmon in the Mathias River, South Island, New Zealand , 1978 .

[10]  J. S. Campbell.  Spawning characteristics of brown trout and sea trout Salmo trutta L. in Kirk Burn, River Tweed, Scotland , 1977 .

[11]  J. W. Banks.  A Review of the Literature on the Upstream Migration of Adult Salmonids , 1969 .

[12]  昭三 山代.  北海道東北部におけるイトウ (Hucho perryi) の年令と成長 , 1965 .

[13]  T. A. Stuart.  Water Currents through Permeable Gravels and their Significance to Spawning Salmonids, etc. , 1953, Nature.

[14]  J. C. Briggs.  Fish Bulletin No. 94. The Behavior and Reproduction of Salmonid Fishes in a Small Coastal Stream , 1953 .

[15]  A. G. Huntsman.  Freshets and Fish , 1948 .

[16]  H. C. White.  Atlantic Salmon Redds and Artificial Spawning Beds , 1942 .

[17]  P. Needham,et al.  Observations on the Spawning of Steelhead Trout , 1934 .