The maturation of anadromous female Atlantic salmon, Salmo salar L., stocked in a small pond in urban St John's, Newfoundland, Canada

• Published in: Journal of Fish Biology
• Main Authors: O'Connell, M. F., Gibson, R. J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1989
• Subjects: Canada; Atlantic salmon; Newfoundland; Salmo salar
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.1989.tb03376.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1989.tb03376.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1989.tb03376.x

Anadromous Atlantic salmon swim‐up fry were stocked into a small pond (surface area 4.0 ha; maximum depth 3.6 m; mean depth 1.9m) in urban St John's, Newfoundland, Canada. The outlet from the pond was placed underground about 15 years ago. The growth rate of young salmon in this pond was two to five times as fast as in populations in insular Newfoundland. Females matured after a size at which they should have smolted and emigrated to sea. Growth, fecundity, and egg size of transplanted females are compared with those of the donor stock and with those reported for populations of landlocked salmon in insular Newfoundland. The evolutionary implications of the study are discussed.