scholarly journals Hydrocarbons and Polychlorinated Biphenyls in the Bottom Sediments from the Nakhodka Bay (Peter the Great Bay, Japan Sea): Assessment of Pollution Level and Potential Тoxicity

2015 ◽  
Vol 22 (6) ◽  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Bottom Sediments ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Pollution Level ◽  
Peter The Great ◽  
Great Bay ◽  
Nakhodka Bay

scholarly journals Modern assemblages of benthic foraminifera in the Zhitkov Bay (Russky Island) of Peter the Great Bay, Japan Sea

2016 ◽  
Vol 184 (1) ◽  
pp. 158-167
Author(s):  
Tatyana S. Tarasova ◽  
Alexandra V. Romanova ◽  
Sergey P. Pletnev ◽  
Vladimir K. Annin
Keyword(s):  
Population Density ◽  
Bottom Sediments ◽  
Benthic Foraminifera ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Common Species ◽  
Quantitative Composition ◽  
Fine Grained ◽  
Peter The Great ◽  
Great Bay

Taxonomic and quantitative composition of Foraminifera assemblages in the Zhitkov Bay (Russky Island, Peter the Great Bay, Japan Sea) are described. In total, 52 species from 30 genera and 14 families of benthic foraminifera have been identified in bottom sediments. The most of them are represented by calcareous forms (38 species), with the highest abundance of families Elphidiidae, Discorbidae, and Buliminidae, other are 14 species of agglutinated foraminifera, including 2 common species of families Trochamminidae and Ataxophragmiidae. Population density of benthic foraminifera correlates well with the type of bottom sediments: the highest abundance is observed on alenric sediments and pebble-sandy grounds and the lowest abundance - on fine-grained pelitic sediments. Six assemblages of benthic foraminifera are determined for the Zhitkov Bay, taking into account the prevailing families.

scholarly journals MESOZOIC RADIOLARIANS FROM RHYTHMICALLY LAYERED SEDIMENTS OF THE RIMSKY-KORSAKOV ISLANDS (PETER THE GREAT BAY, JAPAN SEA) AND THEIR SIGNIFICANCE FOR DETERMINING THE TRIASSIC-JURASSIC BOUNDARY

2021 ◽  
pp. 39-54
Author(s):  
O.L. Smirnova ◽  
◽  
E.A. Bessonova ◽  
T.A. Emelyanova ◽  
◽  
...  
Keyword(s):  
Peter The Great Bay ◽  
Japan Sea ◽  
Research Area ◽  
Lower Jurassic ◽  
Upper Triassic ◽  
Peter The Great ◽  
Great Bay ◽  
The Pacific ◽  
Stratigraphic Division ◽  
First Time

The results of the biostratigraphic study based on the radiolarian analysis of the rhythmically layered terrigenous deposits from the Islands of the Rimsky-Korsakov Archipelago (Peter the Great Bay, Japan Sea) have been presented. These deposits are most similar to the medium-grained turbidites. For the first time the distribution and stratigraphic division of the boundary sediments of the upper Triassic and lower Jurassic separated by a marking layer were substantiated in the research area. On the basis of comparisons with isochronous zonal units of the Pacific and Tethyan areas in the upper Triassic sediments of the studied sections, layers with Globolaxtorum tozeri (upper Rhaetian) were established, and in the lower Jurassic zone Pantanellium tanuense Zone (Hettangian) was traced and layers with Parahsuum simplum (Sinemurian – Pliensbachian) were established.

scholarly journals Assessment of potential production for sea cucumber Apostichopus japonicus in a bicultural marine farm in Peter the Great Bay (Japan Sea)

2018 ◽  
Vol 195 ◽  
pp. 209-218 ◽  
Author(s):  
G. S. Gavrilova
Keyword(s):  
Organic Carbon ◽  
Sea Cucumber ◽  
Negative Impact ◽  
Apostichopus Japonicus ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Peter The Great ◽  
Great Bay ◽  
Commercial Size ◽  
Excessive Accumulation

Marine farms in Peter the Great Bay are oriented predominantly to cultivation of bivalve mollusks that causes excessive accumulation of biodeposits in the areas of plantations. To reduce this negative impact on the ecosystem, development of bicultural farms with cultivation of flterfeeders and detritivores is recommended. In the area of mussel (Mytilus trossulus) plantations in the Sukhodol Bay, the sedimentation rate reaches 34.1 g.m–2.day–1, with mean portion of organic carbon in the biodeposits as 20.2 %. Annual biodeposition from 1 hectare of mussel plantations is about 124 t that corresponds to annual consumption of detritus by 1 million of 1-year-old sea cucumberApostichopus japonicus. By the end of the 4-year cycle of cultivation, the sea cucumbers of commercial size consume this amount of biodeposits within a month (60 g of organic carbon per year each). Production of a sea cucumber plantation with 5 million juveniles of sea cucumber settling every year can exceed 700 t in 10 years of operation, if it is mounted within the bicultural marine farm with bivalve cages as additional source of suspended organic matter.

scholarly journals INTEGRATED MONITORING OF PHYTOPLANKTON IN A SHALLOW INLET OF PETER THE GREAT BAY (JAPAN SEA): DYNAMICS OF CHLOROPHYLL A AND NUTRIENTS

2020 ◽  
Vol 200 ◽  
pp. 141-154
Author(s):  
O. G. Shevchenko ◽  
K. O. Tevs ◽  
V. M. Shulkin
Keyword(s):  
Chlorophyll A ◽  
Seasonal Pattern ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Chemical Parameters ◽  
Phytoplankton Abundance ◽  
Integrated Monitoring ◽  
Chlorophyll A Concentration ◽  
Peter The Great ◽  
Great Bay

Species composition and abundance of phytoplankton, chlorophyll a concentration and chemical parameters were monitored at the coast of Russky Island in the Paris Bay, the shallow secondary inlet of Peter the Great Bay in 2014–2015. In total, 103 species and intraspecific taxa of microalgae from 4 classes are identified. Dynamics of phytoplankton abundance did not coincide with the dynamics of chlorophyll a concentration. The abundance varied from 1.3 . 103 cells/L to 1.9 . 106 cells/L and chlorophyll a concentration changed in the range 0.21–6.08 mg/dm3 . Nutrients had the following concentrations: DSi 0.7–41.8 µM/L, DIN 0.0–7.1 µM/L, DIP 0.0–0.7 µM/L. Dynamics of microalgae density had no common seasonal pattern in 2014 and 2015, though seasonal dynamics of chlorophyll a, as well as variations of nutrients and other water properties were similar in both years.

scholarly journals HISTORY OF PETER THE GREAT BAY DISCOVER AND OCEANOGRAPHIC SURVEYS IN THE JAPAN SEA TILL THE MIDDLE 20TH CENTURY

2020 ◽  
Vol 200 ◽  
pp. 3-23
Author(s):  
G. V. Khen
Keyword(s):  
Oxygen Content ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Western Coast ◽  
Great Success ◽  
Peter The Great ◽  
Golden Horn ◽  
Great Bay ◽  
The Pacific ◽  
The Japan Sea

Peter the Great Bay (PGB) was not known to Europeans for a long time. The first European ship reached PGB in 1852. She was the French corvette Capricieuse commanded by captain G. de Rocquemaurel who was sent by his government for exploring the western coast of the Japan Sea; actually he had described the Posyet Bay only. Later the British HMS Winchester and Barracuda visited PGB in August, 1856. They discovered the Golden Horn Bay, them as Port May, and gave names to many other geographical locations. Large Russian expedition of 7 vessels was sent to Primorye coast under the leadership of N.N. Muravyov-Amursky, the Governor-General of Eastern Siberia, in the summer of 1859. They described thoroughly the entire PGB and changed many (not all) foreign geographical names to Russian ones. Scientific researches in the Japan Sea were started soon by L.I. Schrenk, who summarized the results of Russian observations in two books published in 1869 and 1874. Great success in understanding of oceanographic regime was the work of S.O. Makarov «The «Vitiaz» and the Pacific Ocean» (1894). S. Ogura created in 1927 the general chart of currents in the Japan Sea on the base of Japanese observations in 1900–1911 that was more detailed and comprehensive than the first chart of L.I. Shrenk. Moreover, S. Ogura plotted the water temperature and salinity distribution over the whole Japan Sea for February and August. Oceanographic studies in PGB were made in 1920s by K.A. Gomoyunov, the first professional oceanographer who lived constantly in the Russian Far East; he began from the Amur Bay survey in the summer of 1925. The USSR Hydrographic Office conducted the oceanographic survey in PGB and the Tatar Strait in 1926–1928, with measuring of temperature, salinity, dissolved oxygen content, pH, and water transparency, with the deepest measurements at the depth of 3500 m. In 1932, the Pacific Res. Inst. of Fisheries in Vladivostok together with the State Hydrographic Institute in Leningrad organized the large-scale Pacific expedition that covered all Far-Eastern Seas. In the framework of this expedition, the 5 cruises of RV Rossinante to the Japan Sea headed by N.I. Tarasov explored PGB, too, that allowed to analyze seasonal variations of temperature, salinity, oxygen content, and currents. Oceanographic researches in the Japan Sea became more active in the times of WWII, 4 small research vessels made observations at Primorye coast every month from April to October under general supervision of A.M. Batalin; in total, more than 100 exits to the sea were recorded in 1941–1946. The data collected in those years was the basis for the big atlas of the Japan Sea created under the leadership of A.I. Rumyantsev and published in 1951.

scholarly journals On rare for the Primorye waters species of mackerel Scomberomorus niphonius (Cuvier, 1832)

2016 ◽  
Vol 187 (4) ◽  
pp. 160-161
Author(s):  
Vladimir N. Dolganov
Keyword(s):  
Peter The Great Bay ◽  
Japan Sea ◽  
Peter The Great ◽  
Great Bay ◽  
Scomberomorus Niphonius

Description of the mackerel Scomberomorus niphonius caught in the Vityaz Bay (Peter the Great Bay, Japan Sea) on September 19, 2015.

scholarly journals Feeding and food relations of mass species of sculpins (Cottidae, Pisces) in Peter the Great Bay (Japan Sea) in summer

2016 ◽  
Vol 184 (1) ◽  
pp. 186-203
Author(s):  
Olga I. Pushchina ◽  
Sergey F. Solomatov ◽  
Pavel V. Kalchugin ◽  
Ludmila L. Budnikova
Keyword(s):  
Peter The Great Bay ◽  
Japan Sea ◽  
Common Species ◽  
Food Competition ◽  
Snow Crab ◽  
Feeding Intensity ◽  
Chionoecetes Opilio ◽  
Peter The Great ◽  
Great Bay ◽  
Trophic Niches

Feeding and competitive relationships are considered qualitatively and quantitatively for 9 common species of sculpins (Cottidae) on the data of bottom-trawl surveys of the shelf and upper continental slope of Peter the Great Bay conducted in June-September of 2002-2009. Most of these species are facultative predators (elkhorn sculpin Alcichthys elongatus , blackedged sculpin Gymnocanthus herzensteini , plain sculpin Myoxocephalus jaok , snowy sculpin M. brandti , and great sculpin M. polyacanthocephalus ), two of them are euryphages (thorny sculpin Icelus cataphractus and graypurple sculpin G. detrisus ), and two other are benthophages (antlered sculpin Enophrys diceraus is benthophagous polyphage and thread sculpin G. pistilliger is benthofagous worm-feeder). Daily ration of these species is estimated as 2.4-3.6 % of body weight, with exception of antlered sculpin that is distinguished by lower feeding intensity (on average 1.0 % per day) due to features of its physiology. Food competition between sculpins is estimated as very low, at least in summer feeding season. Cases of significant overlapping of trophic niches noted for the predatory species, as common consumption of echiuran Echiurus echiurus and snow crab Chionoecetes opilio , are reasoned by high abundance and availability of these prey, not by real competition.

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