Морфологическая характеристика амурского (Acipenser schrenckii), сибирского (Acipenser baerii) осетров и гибридов первого поколения (амурский осетр х сибирский осетр, сибирский осетр х амурский осетр)

• Main Authors: Свирский, В., Скирин, В.
• Format: Text
• Language: unknown
• Published: Федеральное государственное унитарное предприятие «Тихоокеанский научно-исследовательский рыбохозяйственный центр» 2007
• Subjects: Pacific; Acipenser baerii; Siberian sturgeon
• Online Access: http://cyberleninka.ru/article/n/morfologicheskaya-harakteristika-amurskogo-acipenser-schrenckii-sibirskogo-acipenser-baerii-osetrov-i-gibridov-pervogo-pokoleniya; http://cyberleninka.ru/article_covers/6440258.png

Показано, что амурский и сибирский осетры в возрасте 1+ достаточно хорошо различаются по окраске и форме головы. По меристическим и пластическим признакам различия между ними реальны при уровне статистической достоверности 0,95. Гибридная форма сибирский осетр х амурский осетр по 22 гибридным индексам, а гибридная форма амурский осетр х сибирский осетр по 18 гибридным индексам из 27 наследуют материнские признаки. Amur and siberian sturgeons are farmed and hybridized in controlled systems of fish-rearing station in Luchegorsk belonged to Pacific Fisheries Research Center (TINRO). Their color, metric, plastic, and alternative (nonmetric) features are considered. These features of the species are investigated for the first time in controlled conditions where the fish of the same age and size bred in the same environments can be measured. The hybrid forms as amur sturgeon x siberian sturgeon and siberian sturgeon x amur sturgeon are investigated for the first time, as well. The amur and siberian sturgeons in the age 1+ were well distinguished by color and head shape. The amur sturgeon had eyes located approximately in the middle of conditional head height line on the level of eyes; its body color was black and grey with dingy-white belly. The siberian sturgeon had eyes located almost under skullcap; its body color was darker with lighter belly and light-grey bottom of the nose. Differences between these two species by metric and plastic features are significant with statistical confidence of 0.95. The two hybrids had significant differences in the age 1+ only. The hybrid siberian sturgeon x amur sturgeon inherited mother signs in 22 hybrid indices, and the hybrid amur sturgeon x siberian sturgeon inherited the mother signs in 18 hybrid indices from 27 ones. So, the hybrids inherited mother phenotype to a greater extent.