Osetrovye Volgo-kaspiyskogo Basseyna - Vladislav Kalmykov - Books - LAP LAMBERT Academic Publishing - 9783659336089 - February 14, 2013
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Osetrovye Volgo-kaspiyskogo Basseyna Russian edition

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Na osnove mnogoletnego analiza privedena informatsiya o sostoyanii zapasov osetrovykh vidov (belugi, osetra, sevryugi, sterlyadi) v Volgo-Kaspiyskom basseyne. Predstavlennye materialy po raspredeleniyu, chislennosti i biomasse promyslovykh zapasov osetrovykh ryb na nagul'nykh pastbishchakh Kaspiyskogo morya. Ustanovleno, chto v sovremennyy period promyslovye resursy belugi, osetra i sevryugi nakhodyatsya v depressivnom sostoyanii. Privedeny materialy po biomasse promyslovykh zapasov proizvoditeley osetrovykh migriruyushchikh v reku na nerest. Rassmatrivayutsya voprosy o vosstanovlenii chislennosti nerestovykh chastey populyatsiy i ratsional'nom ispol'zovanii resursnoy bazy anadromnykh migrantov osetrovykh (belugi, osetra i sevryugi) v tselyakh promyshlennogo osetrovodstva, kak kompensatsionnoe sredstvo ot poter' masshtabov estestvennogo. Dano protsentnoe sootnoshenie vyrashchivaniya molodi vsemi prikaspiyskimi gosudarstvami. Dokazano, ob"emy promyslovogo vozvrata ot estestvennogo neresta osetrovykh v rekakh Rossii, a takzhe vypusk molodi s rybovodnykh predpriyatiy prikaspiyskikh gosudarstv neuklonno sokrashchaetsya. Dany rekomendatsii po vosstanovleniyu i sokhraneniyu osetrovykh v Kaspiyskom basseyne.

Media Books     Paperback Book   (Book with soft cover and glued back)
Released February 14, 2013
ISBN13 9783659336089
Publishers LAP LAMBERT Academic Publishing
Pages 112
Dimensions 150 × 7 × 225 mm   ·   185 g
Language German