The stock condition, abundance dynamics and the prospects of fishery for the Baltic salmon in the rivers of the Latvian SSR
The stock condition of the Baltic salmon Salmo salar in the years 1956-1966 and its year-class abundances in the period 1951-1964 are considered. The abundance dynamics of the year-classes in the Daugava River (Latvia) is analyzed. The analysis of the dependence of the year-class abundance on variou...
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| Format: | Other/Unknown Material |
| Language: | Russian |
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Baltijskij Nauchno-issledovatelskij Institut Rybnogo Khozyajstva; "Zvaigzne"
1968
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| Online Access: | http://hdl.handle.net/1834/43221 |
| Summary: | The stock condition of the Baltic salmon Salmo salar in the years 1956-1966 and its year-class abundances in the period 1951-1964 are considered. The abundance dynamics of the year-classes in the Daugava River (Latvia) is analyzed. The analysis of the dependence of the year-class abundance on various factors indicates that the food basis of the salmon young stages in the Daugava limits their abundance. The dependence of the year-class abundance on the factors influencing it allowed the composition of forecasts on the possible salmon catches 1-4 years in advance. In the article data on the impact of foreign fishery on the Latvian salmon stock are presented. Published Not Known |
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