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Russian scientists offer PICES members to conduct joint expeditions
For the forecasting, direct observations are needed.
Russian scientists invited the participants of the International Organization for Marine Sciences in the North Pacific Ocean to jointly conduct complex expeditionary research within the framework of the FUTURE program. The Russian position was supported by the US delegation, according to FSUE TINRO-Center.
According to the press service of the Pacific Research Fisheries Center, the Institute's specialists made such a proposal even when the program for studying and predicting trends in the change and response of marine ecosystems - FUTURE - was just beginning to form. According to TINRO-Center scientists, expeditionary research will be able to fully identify and assess the key factors of climatic and oceanological conditions in the North Pacific Ocean, which determine the functioning and interannual variability in different periods of plankton communities, common fish and invertebrate species.
Specialists note that at present there is a large number of mathematical models used to understand and predict the relationships of climate variability and changes in the ecosystems of the Northern Pacific. However, most researchers of all countries consider such models far from perfect and recognize the priority of direct expeditionary observations for understanding ecosystem processes and climate-oceanological variability. Therefore, at the next PICES-2015 session, within the framework of the FUTURE program, it will be expedient to present proposals for the creation of a joint expeditionary research program by all PICES countries.
PICES activities also provided an overview of the work of the Arctic and Subarctic ecosystem research program (ESSAS). According to one of the participants in the Franz Mueter program, currently research is being done on the modeling of Arctic ecosystems, the bioenergetics of subarctic fishes and other areas.
During the speeches of scientists at PICES sessions, several reports were made on the impact of climate change on marine ecosystems.
According to the head of the TINRO-Center laboratory, Yuri Zuenko, in recent years, the cross-shelf water exchange in the coastal waters of Primorye has decreased due to the weakening of the summer monsoon. As a result, juveniles of the planktonic predator, sagitta, ceased to enter the coastal zone in such large quantities as before. This has led to an increase in the total biomass of coastal zooplankton at the expense of native species. According to the scientist, such changes may have a long-term character for the coastal waters of Primorye of zooplankton with high biomasses and low species diversity.
In addition, representatives of Russian science told about the research of cascading - an underwater waterfall on the slope of the Sea of Japan. At the beginning of the century, the warming of winters did not allow the process of ventilation of the bottom waters of the sea to develop. However, at the beginning of the 2010-ies. the winters again became colder and the cascading resumed, but so far in the thickness to 2-2,5 thousand meters. Probable reasons scientists call insufficient salinity of bottom shelf waters due to either insufficiently active ice formation on the shelf, or the previous winter of strong freshening of coastal waters. As a result, while the trend for a temperature increase and a decrease in the oxygen content in the bottom layer of the Sea of Japan remains, despite the relatively cold winters of 2010-2012.