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Serum Antigenic Differences in Spring Chinook Salmon (Oncorhynchus tshawytscha) from Two Separate Rivers
Author(s) -
Armour Carl L.
Publication year - 1974
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1974)103<379:sadisc>2.0.co;2
Subject(s) - oncorhynchus , chinook wind , immunodiffusion , immunoelectrophoresis , biology , fish <actinopterygii> , spring (device) , globulin , radial immunodiffusion , antigen , fishery , zoology , antibody , immunology , mechanical engineering , engineering
A total of 208 serum specimens from adult spring chinook salmon (Oncorhynchus tshawytscha) native to the Upper Snake River system and the Willamette River in Oregon were compared by immunodiffusion and immunoelectrophoresis with rabbit immune sera. Inter‐group differences of antigens were not detected by immunodiffusion. One immunoprecipitate pattern which formed distally toward the anode end of slides in immunoelectrophoresis tests occurred in a high frequency (110 out of 114 in Willamette River samples) and very low frequency (2 out of 94) in Snake River samples. Apparently the antigen was less concentrated in serum of fish from the Snake River, possibly reflecting a physiological change. The difference was not found in samples from juveniles from the two rivers. A globulin found by immunoelectrophoresis occurred in different frequencies in juveniles; 28 of 34 fish from the Willamette River were positive and only 1 fish of 36 from the Snake River was positive. Immunoelectrophoretic inhibition demonstrated the difference to be quantitative rather than qualitative.