Maintenance of genetic diversity of Atlantic salmon (Salmo salar) by captive breeding programmes and the geographic distribution of microsatellite variation

Aquaculture ◽  
2002 ◽  
Vol 212 (1-4) ◽  
pp. 69-92 ◽  
Author(s):  
Marja-Liisa Koljonen ◽  
Jaana Tähtinen ◽  
Marjatta Säisä ◽  
Jarmo Koskiniemi
Keyword(s):  
Genetic Diversity ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Geographic Distribution ◽  
Captive Breeding ◽  
Microsatellite Variation ◽  
Atlantic Salmon Salmo Salar ◽  
Breeding Programmes

Temperature Requirements in Atlantic Salmon (Salmo salar), Brown Trout (Salmo trutta), and Arctic Char (Salvelinus alpinus) from Hatching to Initial Feeding Compared with Geographic Distribution

1989 ◽  
Vol 46 (5) ◽  
pp. 786-789 ◽  
Author(s):  
Arne J. Jensen ◽  
Bjørn O. Johnsen ◽  
Laila Saksgård
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Geographic Distribution ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Development Time ◽  
Salvelinus Alpinus ◽  
Arctic Char ◽  
Atlantic Salmon Salmo Salar ◽  
Brown Trout Salmo Trutta

Development time at different temperatures from hatching to 50% feeding was studied in Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) alevins. Live animals were used as food. In both species the development time decreased with increasing temperature, and these relationships were described by power curves. The results were compared with similar data for Arctic char (Salvelinus alpinus). At temperatures above about 8 °C, the development time to 50% feeding was the same for all three species. However, at lower temperatures Atlantic salmon alevins needed more time to reach the stage of initial feeding than did Arctic char. Brown trout were intermediate. These results are in accordance with the known optimum temperature ranges for the three species and their geographic distribution.

“Riverscape” genetics: river characteristics influence the genetic structure and diversity of anadromous and freshwater Atlantic salmon (Salmo salar) populations in northwest Russia

2012 ◽  
Vol 69 (12) ◽  
pp. 1947-1958 ◽  
Author(s):  
Mikhail Yu. Ozerov ◽  
Alexey E. Veselov ◽  
Jaakko Lumme ◽  
Craig R. Primmer
Keyword(s):  
Genetic Diversity ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Carrying Capacity ◽  
Salmonid Fishes ◽  
Microsatellite Data ◽  
Data Set ◽  
Atlantic Salmon Salmo Salar ◽  
Genetic Diversity And Structure ◽  
Genetic Structure And Diversity

Combining population genetic and landscape ecology approaches provides an understanding of how environmental factors affect individual dispersal, population size, and structure. We first generated a set of predictions of the expected effect of “riverscape” characteristics on salmonid genetic diversity and divergence, based on the results of earlier research on this topic in salmonid fishes. We then tested these predictions in a data set consisting of the microsatellite data and riverscape characteristics of 39 Atlantic salmon ( Salmo salar ) populations from northwest Russia. The carrying capacity of the river was an important factor shaping the genetic diversity and differentiation of Atlantic salmon populations in the region: salmon in rivers with a larger carrying capacity tended to have higher genetic diversity and lower genetic differentiation. The importance of other riverscape characteristics often varied between anadromous and freshwater populations. Taken together, these associations demonstrate a high and complex level of river landscape influence on the genetic diversity and structure of Atlantic salmon populations and highlight the importance of spawning and nursery area maintenance for the conservation of salmonids.

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