Features of hydrometeorological conditions over the Far East during the years of high and low runs of Amur pink salmon of even-numbered generation

Purpose: assessment of climatic factors influencing the dynamics of Amur pink salmon catch and determination of the mechanisms of this influence during periods of high and low salmon runs to the Amur estuary.

Research Material: salmon catch data from the Amur estuary, water temperature observations from the ESIMO electronic database, air temperature and precipitation data on coastal GMS were obtained from the archives of the VNIIGMI MDC and the archives of the Reanalysis (NCEP/NCAR Reanalysis Monthly Mean and Other Derived Variables) of atmospheric pressure P₀, geopotential H₅₀₀.

Methods used: to identify critical levels of salmon catches, an interval recognition algorithm was used, previously developed by a team of authors and demonstrated its effectiveness in solving fisheries problems.

Results: the possibility of determining in two years whether the conditions for the survival of pink salmon during the incubation period will be favorable or not, as well as a forecast for a year of favorable conditions for the survival of pink salmon based on an estimate of the water temperature during the slope, which depends on the characteristics of atmospheric circulation.

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