Population structure, ecological segregation and reproduction in non‐anadromous Arctic charr, Salvelinus alpinus (L), in four unexploited lakes in the Canadian high Arctic

• Published in: Journal of Fish Biology
• Main Authors: Parker, H. H., Johnson, L.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1991
• Subjects: Arctic; Ellesmere Island; Four Lakes; Arctic charr; Salvelinus alpinus
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.1991.tb03098.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1991.tb03098.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1991.tb03098.x

Land‐locked populations of Arctic charr in four lakes on Northern Ellesmere Island (80° N) were found to consist of two distinct sizes: ‘dwarf’ and ‘normal’ charr. Both groups attained sexual maturity but differed in appearance and habitat. The smaller fish, occupying the more marginal habitats, ret...