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Д.C. Липатов.
Проблема сохранения генетического разнообразия пресноводного лосося Онежского озера (Salmo salar L.) при проведении промысловой эксплуатации лососёвой популяции реки Шуя
// Лососевидные рыбы Восточной Фенноскандии. Петрозаводск: КарНЦ РАН, 2005. C. 56-62
D.S. Lipatov. The problem of conserving the Onego salmon (Salmo salar morfa sebago Gigard) genetic diversity during commercial fisheries of the salmon population in river Shuja // Salmonid fishes of Eastern Fennoscandia. Petrozavodsk: KarRC RAS, 2005. Pp. 56-62
The paper presents archival data on salmon fisheries in Lake Onego, on the proportions of different
populations in the catches over a half-century period. A maximum catch of 27 ton was attained in 1947. Further growth of the fisheries facilities and intensity undermined salmon stocks in the lake, and the landlocked salmon was included in the Red Data Book of Russia. Since 1962, measures have been taken for artificial reproduction of the salmon in River Shuja, so that after landlocked
salmon fisheries had been discontinued, its abundance was raised to a commercially harvestable value, and the Shuja River salmon population was delisted. Hatchery-reared Shuja
salmon is more abundant in Lake Onego than the fish of all other populations of the Onego catchment. Discussions are now underway about the feasibility of organizing Shuja salmon fisheries.
To what extent can the Shuja population of the land-locked salmon be harvested without harming other scant populations? The paper provides a review of published data on the feeding period of the land-locked salmon in Lake Onego and other lakes of Karelia. The knowledge of this period in the salmon life cycle is insufficient. We know that lacustrine salmon can undertake far-reaching feeding migrations throughout the lake following its main feeds – vendace and smelt. Harvesting of one abundant river population may impair other, less abundant populations. The only way of commercial exploitation that would be safe for scant populations is harvesting of the Shuja population in the Shuja river mouth during spawning migrations allowing passage of spawners.
populations in the catches over a half-century period. A maximum catch of 27 ton was attained in 1947. Further growth of the fisheries facilities and intensity undermined salmon stocks in the lake, and the landlocked salmon was included in the Red Data Book of Russia. Since 1962, measures have been taken for artificial reproduction of the salmon in River Shuja, so that after landlocked
salmon fisheries had been discontinued, its abundance was raised to a commercially harvestable value, and the Shuja River salmon population was delisted. Hatchery-reared Shuja
salmon is more abundant in Lake Onego than the fish of all other populations of the Onego catchment. Discussions are now underway about the feasibility of organizing Shuja salmon fisheries.
To what extent can the Shuja population of the land-locked salmon be harvested without harming other scant populations? The paper provides a review of published data on the feeding period of the land-locked salmon in Lake Onego and other lakes of Karelia. The knowledge of this period in the salmon life cycle is insufficient. We know that lacustrine salmon can undertake far-reaching feeding migrations throughout the lake following its main feeds – vendace and smelt. Harvesting of one abundant river population may impair other, less abundant populations. The only way of commercial exploitation that would be safe for scant populations is harvesting of the Shuja population in the Shuja river mouth during spawning migrations allowing passage of spawners.
Last modified: November 21, 2006