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Scientists have studied commercial stocks in the subzone of Primorye

Published: 26.07.2019

Regular report research vessel "Vladimir Safonov", carrying out comprehensive study in the subzone of Primorye in the spring and summer of the current year, was presented at the biological section of the scientific Council of the TINRO.

The study was conducted in two phases, the first was made ikhtioplanktona shooting in the beginning of the spawning Pollock. During the second part of the trip was made by bottom trawl research on the continental shelf and the deeper areas of up to 810 meters and continued ikhtioplanktona shooting.

As the head of the flight Igor Maltsev, ihtioze in catches was represented by 97 species of fish from 21 families. The greatest number of species were traditionally represented family karshakevich, separovich, ballygowan, lisichkov, stakevich, flatfish. Pollock was 79.5 % of the biomass.

The results of surveys have confirmed that the status of the Pollock resources in Primorye has a tendency to increase. Scientists have noted that the increase largely ensures good generation 2014.

In addition, experts noted the growth of stock at the southern odnomernogo the rasp and the reduction of stocks of flatfish. The state of the resources most other commercial fish species in Primorye is relatively stable.

Also during the surveys was collected large volume samples, samples of fish and invertebrates to determine the sanitary-hygienic characteristics of raw seawater for monitoring the quality and security of habitat of aquatic biological resources. Water analysis will include the identification of metals, petroleum hydrocarbons and pesticides.

During the voyage specialists are faced with a serious problem – collect relevant information on stocks of commercial invertebrates prevented a large number of stationary fishing gear and pose a risk of emergency situations during the operation of the vessel.

In addition, still the legal uncertainty of the work of research vessels for fisheries and fish breeding areas, which also contributes to the efficient execution of public tasks.

In the future this situation may lead to deterioration in the quality of materials booborowie forecast allowable catches and, as a consequence, issues with the passage of the state ecological expertise. To avoid the risk of reducing TACs, the scientists intend to bring up for discussion with industry and Agency the question of the fishing restrictions for the period of the research in the next year.

 


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