TY - JOUR

T1 - THE CONDITION OF OVARIES IN HATCHERY-REARED JUVENILE SUMMER- AND FALL-RUN CHUM SALMON, ONCORHYNCHUS KETA (WALBAUM, 1792), IN SAKHALIN OBLAST

AU - Kolomytsev, V.S.

AU - Lapshina, A.E.

AU - Зеленников, Олег Владимирович

PY - 2018

Y1 - 2018

N2 - The condition of the ovaries in juvenile fall- and summer-run chum salmon prior to release was studied at five fish hatcheries that operate on Sakhalin Island. It has been found that juveniles released from different hatcheries, while having a similar body weight, may differ in the degree of development of their ovaries. Juvenile summer-run chum salmon showed a lower oogenesis rate at the hatchery with the warmest water and a higher oogenesis rate at the relatively cold-water hatcheries, compared to that of fall-run juveniles.

AB - The condition of the ovaries in juvenile fall- and summer-run chum salmon prior to release was studied at five fish hatcheries that operate on Sakhalin Island. It has been found that juveniles released from different hatcheries, while having a similar body weight, may differ in the degree of development of their ovaries. Juvenile summer-run chum salmon showed a lower oogenesis rate at the hatchery with the warmest water and a higher oogenesis rate at the relatively cold-water hatcheries, compared to that of fall-run juveniles.

U2 - 10.1134/S1063074018010066

DO - 10.1134/S1063074018010066

M3 - Article

VL - 44

SP - 36

EP - 41

JO - Russian Journal of Marine Biology

JF - Russian Journal of Marine Biology

SN - 1063-0740

IS - 1

ER -