+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

On the studies of scale pattern and growth of masu salmon (Oncorhynchus masou). 1. Age and scale pattern in fresh water life



On the studies of scale pattern and growth of masu salmon (Oncorhynchus masou). 1. Age and scale pattern in fresh water life



Scientific Reports of the Hokkaido Salmon Hatchery, 25-32 No. 38



Masu salmon, O. masou (Brevoort), live mainly in the Japan Sea area and have a more characteristic life history than other species of Oncorhynchus. Though they spend only 1 yr at the sea their freshwater life is variable, and this fact makes it difficult to determine age from their scales. An effort was made to clarify and rectify these age determination difficulties in view of plans for masu salmon enhancement. The scales were analyzed of masu salmon parr, smolt and adults in Mena River, a branch of Shiribetsu River, Hokkaido Japan . Number of circuli and scale radius (nucleus to the edge of 1st annulus) of 1+ yr resident parr captured in July were 6-12 (mean 8.8) and 0.14-0.36 mm (mean 0.25 mm), respectively. Some of these 1+ fish may migrate to sea in the following spring as 2+ smolt based on evaluation of their gonadal development. Age determination from 668 adult masu salmon which returned to Mena River in 1982 and 1983, revealed 43yr fish represented 6.7% (1982) and 9.4% (1983) of the fish; all others were 32yr fishes.

(PDF emailed within 1 workday: $29.90)

Accession: 021491694

Download citation: RISBibTeXText


Related references

Studies of scale pattern and growth of masu salmon oncorhynchus masou 1. age and scale pattern in fresh water life. Scientific Reports of the Hokkaido Salmon Hatchery (38): 25-32, 1984

On the studies of scale pattern and growth of masu salmon (Oncorhynchus masou). 2. Growth and scale pattern of hatchery reared masu salmon returned in 1982. Scientific Reports of the Hokkaido Salmon Hatchery, 17-25 No. 39, 1985

Scale pattern and growth of masu salmon oncorhynchus masou 1. growth and scale pattern of hatchery reared masu salmon returned in 1982. Scientific Reports of the Hokkaido Salmon Hatchery (39): 17-26, 1985

The age determination of the masu salmon oncorhynchus masou by scale reading with special reference to a criterion to classify the age during the fresh water life. Bulletin of the Japan Sea National Fisheries Research Institute (24): 53-66, 1973

Sex-specific growth pattern during early life history in masu salmon, Oncorhynchus masou. Ecology of Freshwater Fish ember; 13(3): 203-207, 2004

Differences in scale characteristics taken from various parts of masu salmon oncorhynchus masou brevoort and its scale development. Scientific Reports of the Hokkaido Salmon Hatchery (45): 35-46, 1991

Comparative biochemical studies of carotenoids in fishes 19. carotenoids of chum salmon oncorhynchus keta coho salmon oncorhynchus kisutch biwa trout red spotted masu salmon masu salmon oncorhynchus masou and kokanee oncorhynchus nerka. Nippon Suisan Gakkaishi 46(7): 879-884, 1980

Relationship between the growth of juvenile masu salmon (Oncorhynchus masou) and the circuli number, scale and central plate radii. Bulletin of National Research Institute of Aquaculture 0(25): 1-15, 1996

Studies on parasites of masu salmon Oncorhynchus masou. I. The parasitism of Tetraonchus (Monogenea) on the gills of juveniles in fresh water. Scientific Reports of the Hokkaido Fish Hatchery (36): 56-63, 1981

Oncorhynchus masou virus pathological changes in masu salmon oncorhynchus masou chum salmon oncorhynchus keta and coho salmon oncorhynchus kisutch fry infected with oncorhynchus masou virus by immersion method. Nippon Suisan Gakkaishi 50(3): 431-438, 1984

Oncorhynchus masou virus: pathological changes in masu salmon (Oncorhynchus masou), chum salmon (Oncorhynchus keta) and coho salmon (Oncorhynchus kisutch) fry infected with OMV by immersion method. Bulletin of the Japanese Society of Scientific Fisheries 50(3): 431-437, 1984

Reviews on some problems of age determination by the scale of the masu salmon oncorhynchus masou. Bulletin of the Japan Sea National Fisheries Research Institute (22): 15-29, 1970

Effects of the rearing system water current on growth and swimming ability of masu salmon Oncorhynchus masou masou. Phillips, Bruce , Reprint Author, Megrey, Bernard A, Zhou, Y Proceedings of the Third World Fisheries Congress: Feeding the world with fish in the next millenium - the balance between production and environment: 111-125, 2003

Profiles in growth, smoltification, immune function and swimming performance of 1-year-old masu salmon Oncorhynchus masou masou reared in water flow. Fisheries Science 68(6): 1282-1294, 2002

Purification and characteristics of trypsin from masu salmon (Oncorhynchus masou) cultured in fresh-water. Fish Physiology and Biochemistry 36(3): 637-645, 2010