Long-term dynamics for some biological parameters of pink salmon rom Asiatic herds
https://doi.org/10.26428/1606-9919-2025-205-596-624
EDN: MXDZOU
Abstract
Relationships of year-to-year dynamics are analyzed between the body size of pink salmon and their regional and total abundance and between the size of juveniles and the size of returned adults. The dependencies are estimated for odd and even year-classes, separately, and for different periods of years. The body size variations relate closer with changes of regional abundance than with changes of total abundance for pink salmon from almost all regional herds except those reproduced in East Sakhalin and southern Kuril Islands. Variations of the body size correlate well between the juveniles and adults returning for spawning for the herds from East and West Kamchatka (both for odd and even year-classes) and East Sakhalin (for high abundance odd years-classes). Sustainability of some size-weight features formed in the early period of life during the further stages of feeding and spawning migration is assumed for pink salmon.
Keywords
pink salmon,
fish abundance,
body size,
fatness,
feeding,
growth rate,
correlation,
Pacific Ocean,
Okhotsk Sea,
Bering Sea
Supporting agencies: The authors are grateful to all scientific staff in marine expeditions for collecting and processing the primary materials used for the study and to colleagues from the Far Eastern branches of VNIRO who many years collected the information on catches and biological indices of pacific salmon and created the excellent database, with particular thanks to E.A. Shevlyakov (TINRO) for valuable consultations and to A.M. Kaev (SakhNIRO) for kindly provided data on body weight of pink salmon at Sakhalin.
About the Authors
S. V. Naydenko
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Svetlana V. Naydenko, D.Biol., principal researcher
4, Shevchenko Alley, Vladivostok, 690091
A. N. Starovoitov
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Aleksandr N. Starovoitov, Ph.D., chief specialist
4, Shevchenko Alley, Vladivostok, 690091
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For citations:
Naydenko S.V., Starovoitov A.N. Long-term dynamics for some biological parameters of pink salmon rom Asiatic herds. Izvestiya TINRO. 2025;205(4):596-624. (In Russ.) https://doi.org/10.26428/1606-9919-2025-205-596-624. EDN: MXDZOU
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