Lesions observed in the testis of precociously maturing male Atlantic salmon, Salmo salar L.

• Published in: Journal of Fish Biology
• Main Authors: Laird, L. M., Wilson, A. R., Holliday, F. G. T.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1980
• Subjects: Atlantic salmon; Salmo salar
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.1980.tb02769.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1980.tb02769.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1980.tb02769.x

Abnormalities were detected in the testes of maturing male Atlantic salmon parr from one hatchery. They consisted of a focal necrosis of germ tissue at the time of rapid cell division when normal germ cells were reaching the spermatid stage of development. Some males taken from sea water which had matured previously in fresh water, had fibrous capsules in their testes as remnants of the freshwater lesion but there were no new abnormalities developing in the gonads. The same stock of fish showed other abnormalities and the authors speculate on a possible connection between these changes and the gonad lesion.