Research Vessel Deneb: 10 Years of Marine Scientific Research

G. G. Matishov, O. V. Stepanyan✉

Federal Research Center Southern Scientific Center of RAS, Rostov-on-Don, Russian Federation

✉ e-mail: step@ssc-ras.ru

Abstract

Study of natural and anthropogenic processes in the southern seas of Russia is a priority task of the Southern scientific center of Russian Academy of Sciences. Annually for 15 years, the Southern scientific center of RAS carried out sea expeditions in the south of Russia. The year of 2017 was marked as a 10-year anniversary of the first expedition of the R/V Deneb in the Azov and Black seas. During a five-year period from 2012 to 2016, 36 complex expeditions in the Azov and Black seas were carried out by R/V Deneb; the oceanographic database was enriched with the data of 3500 oceanological stations, more than 11,000 samplings were done at more than 900 complex hydrobiological stations. The expeditionary materials enlarged the oceanographic database of the Southern scientific center: the field and archival data permitted to assess long-term dynamics of organic matter and carbon, the Azov Sea transparency and salinity and to calculate the characteristics of small-scale variability of temperature, salinity, internal waves and level fluctuations in the Azov and Black seas. The research in the Black Sea provided extensive synchronous data which characterize current state of the most vulnerable psammophilic benthic communities at the depths of 2–20 m. The estuaries of small rivers at their junction with the sea were studied in details. The new data on distribution and quantitative characteristics of jelly-like-, phyto- and pico-plankton over the whole shelf area of the Russian sector of the Black Sea is obtained. The Black Sea population of newcomers – Holland crabs (Rhitropanopaeus harrisi tridentate) – living exclusively in the sea canyons with unstable salinity was studied. The metagenomic approaches applied to study the plankton communities in the Azov and Black seas, were used to obtain new data on diversity and structure of marine bacterial communities. The oceanological observation data on the environment conditions in the Azov and Black seas are annually directed to the Hydrographic department of the Black Sea Navy of Russian Federation where it is used in the field service.

Keywords

R/V Deneb, marine research, hydrology, hydrochemistry, hydrobiology, biological invasions, metagenomics, the Azov Sea, the Black Sea

Acknowledgements

The research was carried out within the framework of the State Order No. 01201450487 “Analysis of the nature system dynamics based on the megabase data covering the long-term (19–20 centuries) period of observations aimed at revealing and forecasting extremal nature phenomena dangerous for social and economic development of the densely populated regions in the southern Russia”. The authors are grateful to the master V. I. Tkachenko, the chief mate D. A. Tkachenko and the crew of the R/V Deneb, as well as the participants of the expeditions and the specialists who processed the collected data.

Original russian text

Original Russian Text © G. G. Matishov, O. V. Stepanyan, 2018, published in MORSKOY GIDROFIZICHESKIY ZHURNAL, Vol. 34, Iss. 6, pp. 548–555 (2018)

For citation

Matishov, G.G. and Stepanyan, O.V., 2018. Research Vessel Deneb: 10 Years of Marine Scientific Research. Physical Oceanography, [e-journal] 25(6), pp. 501-508. doi:10.22449/1573-160X-2018-6-501-508

DOI

10.22449/1573-160X-2018-6-501-508

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