Spawning-strategy-dependent diets in two North American populations of Atlantic salmon Salmo salar

2019 ◽  
Vol 94 (1) ◽  
pp. 40-52 ◽  
Author(s):  
Brianne Kelly ◽  
Hugues P. Benoît ◽  
Gerald Chaput ◽  
Ross A. Jones ◽  
Michael Power
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
Atlantic Salmon Salmo Salar

Differences in Atlantic Salmon, Salmo salar, from North America and Europe

1972 ◽  
Vol 29 (2) ◽  
pp. 179-185 ◽  
Author(s):  
O. L. Nyman ◽  
J. H. C. Pippy
Keyword(s):  
North America ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
Serum Proteins ◽  
Fork Length ◽  
Anisakis Simplex ◽  
Atlantic Salmon Salmo Salar

Differences in electropherograms produced by serum proteins and liver esterases were used to identify North American and European Atlantic salmon (Salmo salar) caught at sea. Division of salmon according to continent of origin was supported by mean river age, mean fork length, and abundance of the two parasites Anisakis simplex and Eubothrium crassum. Consistent differences in electrophoretic behaviour of serum proteins and liver esterases in salmon from the two continents support the suggestion that salmon from North America and Europe represent different subspecies.

A minisatellite DNA marker for discriminating between European and North American Atlantic salmon (Salmo salar)

1995 ◽  
Vol 52 (11) ◽  
pp. 2305-2311 ◽  
Author(s):  
John B. Taggart ◽  
Eric Verspoor ◽  
Paul T. Galvin ◽  
Paloma Morán ◽  
Andrew Ferguson
Keyword(s):  
Atlantic Salmon ◽  
Allele Frequency ◽  
Salmo Salar ◽  
North American ◽  
Nuclear Dna ◽  
Dna Marker ◽  
Low Frequency ◽  
Geographic Range ◽  
Minisatellite Dna ◽  
Atlantic Salmon Salmo Salar

A highly discriminatory and practical nuclear DNA genetic marker that can distinguish between Atlantic salmon (Salmo salar) of European and North American origin is described. Screening of 2847 European and 247 North American Atlantic salmon from much of its geographic range for variability at a minisatellite locus, Ssa-A45/2/2, revealed the continental stocks to be almost fixed for two different-sized, easily discernable alleles. Virtually all European Atlantic salmon were homozygous for a 3.00-kb allele (frequency > 0.999), while a smaller 2.77-kb allele (frequency = 0.946) predominated in all North American populations. Whereas the 2.77-kb allele was found exclusively in North American salmon, an allele indistinguishable in size from the 3.00-kb European diagnostic allele was also observed at low frequency (0.036) in North American fish. Eight other continent-specific rare alleles (highest frequency = 0.006) were also observed. The results suggest that little, if any, natural gene flow occurs between the two continental groups of Atlantic salmon.

scholarly journals Distribution and biological characteristics of Atlantic salmon (Salmo salar) at Greenland based on the analysis of historical tag recoveries

2012 ◽  
Vol 69 (9) ◽  
pp. 1589-1597 ◽  
Author(s):  
David G. Reddin ◽  
Lars Petter Hansen ◽  
Vegar Bakkestuen ◽  
Ian Russell ◽  
Jonathan White ◽  
...  
Keyword(s):  
United States ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
The United States ◽  
Biological Characteristics ◽  
Atlantic Salmon Salmo Salar ◽  
Before And After ◽  
The Uk ◽  
Different Origins

Abstract Reddin, D. G., Hansen, L. P., Bakkestuen, V., Russell, I., White, J., Potter, E. C. E., Dempson, J. B., Sheehan, T. F., Ó Maoiléidigh, N., Smith, G. W., Isaksson, A., Jacobsen, J. A., Fowler, M., Mork, K. A., and Amiro, P. 2012. Distribution and biological characteristics of Atlantic salmon (Salmo salar) at Greenland based on the analysis of historical tag recoveries. – ICES Journal of Marine Science, 69: 1589–1597. In this study, we examined 5481 records of tag recoveries at Greenland from a new tagging database held by ICES that contains information on salmon tagged in Canada, France, Faroes, Greenland, Iceland, Ireland, Norway, Spain, the UK (Northern Ireland, Scotland, England, and Wales), and the United States from the early 1960s to the present. For 4806 of the tag recoveries, latitude and longitude information were available, describing, to varying degrees of accuracy, the location of recovery of tagged fish. Release and recovery dates were variable, but no significant differences over time were noted. The information derived from tag recoveries was used to describe the distribution and growth of salmon of different origins. The proportion of recoveries from East Greenland suggested that potential multi-sea-winter salmon from northern Europe have a more easterly distribution than those from southern Europe. The location of recovery of salmon of North American origin differed from that of European salmon along the west coast of Greenland. Tag recoveries by country were not uniformly distributed across the respective NAFO Divisions. Tags from salmon originating in Canada and the United States were more commonly recovered in northern locations than tags from European-origin salmon. Analysis of rates of tag recovery suggested similar rates before and after the introduction of the NASCO Tag Return Incentive Scheme. The straight-line migration speed of both North American and European salmon changed very little over the time-series, but was ∼40% greater for North American salmon (0.43 m s−1) than for European salmon (0.29–0.32 m s−1).

Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers

2008 ◽  
Vol 65 (12) ◽  
pp. 2807-2826 ◽  
Author(s):  
Matthew R.J. Morris ◽  
Dylan J. Fraser ◽  
Anthony J. Heggelin ◽  
Frederick G. Whoriskey ◽  
Jonathan W. Carr ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
Temporal Trends ◽  
Wild Salmon ◽  
Farmed Salmon ◽  
Atlantic Salmon Salmo Salar ◽  
In The Wild ◽  
Farmed Atlantic Salmon ◽  
Comprehensive Compilation

Knowledge of the prevalence of escaped farmed fishes in the wild is an essential first step to assessing the risk resulting from interactions between farmed and wild fishes. This is especially important in eastern North America, where Atlantic salmon ( Salmo salar ) aquaculture occurs near wild Atlantic salmon rivers and where many wild salmon populations are severely depressed. Here, we review the literature on the incidence of escaped farmed salmon in eastern North American rivers, for which there has been no comprehensive compilation to date. Escaped farmed salmon have been found in 54 of 62 (87%) rivers investigated within a 300 km radius of the aquaculture industry since 1984, including 11 rivers that contain endangered salmon populations. Averaged among all investigations, the proportional representation of farmed salmon among adults entering the rivers from the sea was 9.2% (range 0% to 100%). Where data were sufficient to examine temporal trends, farmed salmon proportions varied considerably over time, suggesting that escape events are episodic in nature. We conclude that escaped farmed salmon are sufficiently prevalent in eastern North American rivers to pose a potentially serious risk to the persistence of wild salmon populations, especially in those rivers that are adjacent to existing aquaculture sites.

THE IDENTITY OF THE SPECIES OF LEPEOPHTHEIRUS (COPEPODA) PARASITIC ON PACIFIC SALMON (GENUS ONCORHYNCHUS) AND ATLANTIC SALMON (SALMO SALAR)

1958 ◽  
Vol 36 (6) ◽  
pp. 889-892 ◽  
Author(s):  
L. Margolis
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
North Pacific ◽  
Pacific Salmon ◽  
Distinct Species ◽  
Atlantic Salmon Salmo Salar ◽  
The North ◽  
Wide Range ◽  
The North Pacific

A review of existing descriptions of Lepeophtheirus from salmonids, based on specimens collected mainly from Salmo salar in the European and North American Atlantic and from Oncorhynchus spp. in the Asiatic and North American Pacific, coupled with observations by the author on material from S. salar from England and from Oncorhynchus spp. from a wide range of localities in the North Pacific, suggest that L. salmonis (Krøyer, 1838) is the only species found on salmonids from both oceans. The differentiation of L. uenoi Yamaguti, 1939 as a distinct species on Pacific salmon seems to be the result of incorrect or inadequate early descriptions of L. salmonis.

Divergent and linked selection shape patterns of genomic differentiation between European and North American Atlantic salmon ( Salmo salar )

2020 ◽  
Vol 29 (12) ◽  
pp. 2160-2175 ◽  
Author(s):  
Sarah J. Lehnert ◽  
Tony Kess ◽  
Paul Bentzen ◽  
Marie Clément ◽  
Ian R. Bradbury
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
North American ◽  
Atlantic Salmon Salmo Salar ◽  
Linked Selection
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