Author: H. C. FreemanPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Studies on the effects of a low ph river on weight gain, sexual maturation, androgen production and reproduction in the Atlantic salmon (Salmo salar)
Author: H. C. FreemanThe Effects of an Acidic River, Caused by Acidic Rain, on Weight Gain, Steroidogenesis, and Reproduction in the Atlantic Salmon (Salmo Salar)
Author: HC. FreemanPublisher:
ISBN:
Category : Acid rain
Languages : en
Pages : 11
Book Description
In 1981, wild male Atlantic salmon (Salmo salar) captured in the low pH (pH 4.7) Westfield River, Nova Scotia, Canada, had lower plasma androgen levels at sexual maturity compared to levels in wild male salmon sampled in the nearby less acidic (pH 5.6) Medway River. In 1982, Atlantic salmon held in cages and fed daily in the Westfield River (pH range 5.1 to 5.3) during the last three months of their sexual maturation cycle gained less weight, produced smaller eggs, and had abnormal steroid hormone metabolism compared to similar fish held in the less acidic Medway River (pH range 5.4 to 6.1). The mortality of eggs taken and fertilized from salmon held in the Westfield River exceeded 90% while the mortality of eggs from the Medway River salmon was 59%.
Canadian Journal of Fisheries and Aquatic Sciences
Author: Aquatic Toxicology and Hazard Assessment
Author: Rita Comotto BahnerPublisher: ASTM International
ISBN: 9780803104372
Category : Science
Languages : en
Pages : 482
Book Description
Aquatic Toxicology and Environmental Fate
Author: Glenn W. SuterPublisher: ASTM International
ISBN: 0803111800
Category : Aquatic organisms
Languages : en
Pages : 600
Book Description
Selected Water Resources Abstracts
Author: Selected Water Resources Abstracts
Author: The Zoological Record
Author: Age, Growth, and Mortality of Juvenile Atlantic Salmon in Streams
Author: Patrick W. BleyPublisher:
ISBN:
Category : Atlantic salmon
Languages : en
Pages : 36
Book Description
Author: