Atlantic salmon – Salmo salar
نویسنده
چکیده
Distribution Th e species’ range encompasses Europe, North America, and Green land (1) (Fig.1). Non-anadromous forms occur in Europe in a few land-locked locations in Norway and Sweden, and throughout the Neva/Lake Ladoga system and Karelia regions of Russia. In North America non-anadromous forms occurred throughout most of the species’ historical range, as far west as Lake Ontario, and remain common throughout Newfoundland, Labrador and northern Quebec. Over the last 150 years anadromous stocks have become extinct in many rivers. Native stocks are no longer present in the Elbe and the Rhine, two of Europe’s largest rivers, or in many rivers draining into the Baltic and in southern England, France and Spain, which previously had abundant salmon runs (1), and have become extinct in many rivers in the US and southern Canada (1, 2, 3). Th e species has been introduced in a number of locations, both within its range and elsewhere (1) but its native range has contracted and fragmented. Most remaining stocks, particularly in the southern part of its range and in the Baltic Sea region, are depressed and many no longer self-sustaining; detailed information, however, is lacking for most river systems where the species still occurs.
منابع مشابه
Effect of feeding rate on nutrient digestibility in Atlantic salmon, Salmo salar L.
A digestibility trial was conducted to examine the effect of feeding rate on dry matter, gross energy, crude protein and phosphorus digestibility in Atlantic salmon (Salmo salar). Duplicate groups of fish were fed 0.25, 0.5, 0.75, 1.0, 1.25 and 1.9% BW/day. The faeces were collected by Guelph-type collectors for five successive days. Dry matter, protein and phosphorus digestibility’s were all s...
متن کاملHistopathological study of gills in experimentally amoebic gill disease (AGD) infected Atlantic salmon, Salmo salar, L.
Amoebic gill disease (AGD) is the most important parasitic disease of Atlantic salmon industry inAustralia. Atlantic salmon (Salmo salar) experimentally infected with Neoparamoeba sp. apparently showedAGD gross signs on the gill and an amoebic-associated gill pathology. Physico-chemical factors of waterduring the experiment were monitored regularly and were approximately constant (temperature: ...
متن کاملEffect of feeding rate on nutrient digestibility in Atlantic salmon, Salmo salar L.
A digestibility trial was conducted to examine the effect of feeding rate on dry matter, gross energy, crude protein and phosphorus digestibility in Atlantic salmon (Salmo salar). Duplicate groups of fish were fed 0.25, 0.5, 0.75, 1.0, 1.25 and 1.9% BW/day. The faeces were collected by Guelph-type collectors for five successive days. Dry matter, protein and phosphorus digestibility’s wer...
متن کاملAtlantic salmon (Salmo salar L.). virus, an orthomyxo-like virus isolated from Characterization of infectious salmon anemia
متن کامل
Genome Sequence of Streptococcus phocae subsp. salmonis Strain C-4T, Isolated from Atlantic Salmon (Salmo salar)
Streptococcus phocae subsp. salmonis is a fish pathogen that has an important impact on the Chilean salmon industry. Here, we report the genome sequence of the type strain C-4(T) isolated from Atlantic salmon (Salmo salar), showing a number of interesting features and genes related to its possible virulence factors.
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تاریخ انتشار 2007