GEOCHEMISTRY AND FORMATION CONDITIONS OF THE ULSK THERMAL SPRING, THE OKHOTSK SEA COAST, KHABAROVSK TERRITORY

Dependence of chum salmon Oncorhynchus keta recruitment (number of mature adults) in Okhotsky district located on the Okhotsk Sea coast on a number of spawners is analyzed for the spawning years of 1983–2014. During this period, the progeny abundance increased, then stabilized on a high level, then decreased. Generally, the number of recruits depended poorly on the number of spawners because of clear environmental impact. Indeed, the recruitment variation could be simulated on the base of Ricker curve with addition of a variable responsible for environmental trend. Number of the year of spawning was used as such variable. So, the chum recruitment R is modeled as R = a. P. exp(–(P/b + ((X – c)/d)2 )) for the period of increasing and R = a. P. exp(–(P/b – ((X – c)/с)2 )) for the period of decreasing, where P — number of parents, X — year of spawning, and a, b, c, d — empirical coefficients. This model explains > 80 % of the recruitment deviation. The environmental impact was weak in the period of stable recruitment, so the direct dependence of progeny abundance on spawners number (Ricker curve) can be used for these years, with similar determination (r2 > 0.8). This approach is proposed as a possible compromise between hypotheses on climate-driven and autoregulating mechanisms of the salmons abundance variability.

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Brief History of the North-West Okhotsk Sea Coast Archaeological Research (In Celebration of the 90th Anniversary of the First Northern Okhotsk Sea Coast Archaeology Publication by V. I. Ogorodnikov)

Vestnik NSU Series History and Philology ◽

10.25205/1818-7919-2021-20-5-20-31 ◽

2021 ◽

Vol 20 (5) ◽

pp. 20-31

Author(s):

Sergey B. Slobodin ◽

Alisa Yu. Zelenskaya

Keyword(s):

Far East ◽

Northeast Asia ◽

Northeastern Russia ◽

Archaeological Research ◽

Okhotsk Sea ◽

North West ◽

North East ◽

The North ◽

History Of ◽

Sea Coast

Purpose. To analyze the significance of V. Ogorodnikov’s 1929 article on finds from Olsky (Zaviyalova) Island in the historiography of archaeological research in northeastern Russia. Results. An analysis of his published materials, in the context of the history of archaeological research in Northeast Asia in the 18th – first quarter of the 20th century shows that this was, in fact, the first professional publication on archaeological research in this part of northeast Asia. Until that time, sporadic publications about random finds and their fragmentary descriptions did not give a holistic picture of human existence in these territories. It was also the first Russian archaeological publication post-revolution on the antiquities of the north of the Far East. However, Ogorodnikov’s article, from the day of its publication, was forgotten, and in all further archaeological research, both in Northeast Asia as a whole, and on Zaviyalova Island and in Taui Bay in particular, was not mentioned and was not analyzed by the archaeologists who conducted research there, although the conclusions made by him were confirmed by further work. This, apparently, was due to the fact that although he was a well-known Siberian historian and the first Dean of the Department of History of Irkutsk University, Ogorodnikov was unjustly repressed for political reasons in 1933 and died in 1938 in a Gulag camp. Despite the fact that he was politically rehabilitated in 1957, his name has not yet returned to the historiography of archeology of Northeast Asia. This publication aims to fill this gap. The Neolithic age of the archaeological materials declared and published by Ogorodnikov, previously unforeseen and not justified by anyone for Northeast Asia, was fully confirmed by further research. Conclusion. The publication by Ogorodnikov in 1929 featuring results of the first excavations in Taui Bay on Olsky (Zaviyalova) Island is a significant milestone in archaeological research in the North-East of Russia.

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