Article
Environmental Sciences
Valeriy Petukhov, Evgeniya Petrova, Alexey Kiryanov, Evgeniy Zheldak, Aleksei Kholodov
Summary: This study investigated the content of harmful heavy metals in the bottom sediments of Uglovoy Bay in the Sea of Japan/East Sea from 2016 to 2021. The contamination of the sediments was compared to background concentrations and common contamination indices. Various contamination factors and indices were used to evaluate the degree of contamination and the toxicity of the sediments. The sources of pollutants entering the study area were analyzed, and the continuous contamination of Uglovoy Bay due to economic activities on its coast was shown. The dynamics of contamination in the bay from 2016 to 2021 were presented.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Marine
Vitaly K. Fischenko, Anna A. Goncharova, Grigory I. Dolgikh, Petr S. Zimin, Aleksey E. Subote, Nelly A. Klescheva, Andrey V. Golik
Summary: The article introduces a technology developed by the authors for express analysis of images and videos recorded by coastal video monitoring systems. This technology can measure sea waves, sea level fluctuations, and underwater currents in real time, with examples of its use in the scientific video monitoring network of Peter the Great Bay.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Alexey M. Trukhin, Peter A. Permyakov, Sergey D. Ryazanov, Vyacheslav B. Lobanov, Hyun Woo Kim, Young Min Choi, Hawsun Sohn
Summary: The study found that young spotted seals migrate east and further north along the coast of the mainland in their annual cycle, with an average daily migration speed ranging between 70 and 135 km. The seals arrived at their summer habitats in northern parts of the Tatar Strait and Aniva Bay in early August, where they stayed until beginning their reverse migration in November towards their natal islands.
Article
Food Science & Technology
Anna E. Vlasenko, Timur Yu. Magarlamov
Summary: This study investigated the variations in Tetrodotoxin (a neurotoxin) and its analogues in two marine species from the Sea of Japan. The toxin concentrations varied greatly within each species, providing insights into the migration pathways of TTXs in ecosystems.
Article
Environmental Sciences
Aleksandr Samchenko, Grigory Dolgikh, Igor Yaroshchuk, Alexandra Kosheleva, Aleksandr Pivovarov, Vadim Novotryasov
Summary: Two types of turbidity currents, fine-dispersed and fine- and coarse-grained, are responsible for the formation of sediment waves in Peter the Great Bay. The geological structure of the bay and the hydrological changes caused by typhoons play important roles in this process. The autumn season is crucial for the intensification of internal waves disintegration and the entry of typhoons in the Sea of Japan increases the kinetic energy of the Primorsky current, resulting in the formation of sediment waves.
Article
Limnology
Takeshi Yuhara, Takao Suzuki, Tatsuki Nishita, Junichi Murakami, Wataru Makino, Gen Kanaya, Kyoko Kinoshita, Natsuru Yasuno, Takashi Uchino, Jotaro Urabe
Summary: The Great East Japan Earthquake and subsequent tsunamis had a significant impact on the nearshore ecosystems of Sendai Bay. However, our study shows that the differences in community compositions caused by the tsunamis decreased over time and eventually disappeared after 7 years, indicating the high resilience of these tidal flat communities to tsunami disturbance.
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2023)
Article
Biodiversity Conservation
Min Xu, Rong Wang, Xuhui Dong, Qinghui Zhang, Xiangdong Yang
Summary: Understanding the response of biological communities to anthropogenic eutrophication is crucial for biodiversity conservation. This study combines paleolimnology and network science to propose a heterogeneity index (H) for measuring community successions. The results show that different degrees of eutrophication have varying effects on diatom communities, and there are discrepancies between different indices.
ECOLOGICAL INDICATORS
(2022)
Article
Ecology
Natalia Chernova, Vitaly L. Syomin, Glafira D. Kolbasova, Kirill A. Kobyakov, Alexander N. Charkin
Summary: This study provides important data for the fish research in Chaunskaya Bay, revealing that a total of 18 marine fish species, including 8 new species, have been recorded in the bay.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Geochemistry & Geophysics
P. Ya. Tishchenko, E. M. Shkirnikova, V. A. Goryachev, A. A. Ryumina, S. G. Sagalaev, P. P. Tishchenko, O. A. Ulanova, E. Yu. Tibenko
Summary: The study in the Peter the Great Bay of the Sea of Japan in Russia revealed the significant impact of Zostera Marina (ZM) meadows on the accumulation of blue carbon, leading to higher carbon contents. By measuring radioactivity and chlorophyll a, organic carbon degradation and accumulation rates in sediment were estimated, showing variations among different locations.
GEOCHEMISTRY INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
A. A. Ryumina, P. Ya. Tishchenko, E. M. Shkirnikova
Summary: A characteristic of labile heavy metals is their tendency to be bioaccumulated and bioassimilated in natural environments, especially in coastal shallow marine zones affected by human activities. This study presents data on heavy metal concentrations, organic carbon levels, and bottom sediment composition in three shallow bights of Peter the Great Bay, with two of them having extensive seagrass growth. Results show that Voevoda bight has the highest concentrations of Zn and Cu, Novgorodskaya bight has the highest concentrations of Mn and Pb, and Uglovoy bight has the highest contents of Cr, Ni, and Co.
GEOCHEMISTRY INTERNATIONAL
(2023)
Article
Environmental Sciences
Eduard Tokar, Natalia Kuzmenkova, Alexandra Rozhkova, Andrey Egorin, Daria Shlyk, Keliang Shi, Xiaolin Hou, Stepan Kalmykov
Summary: Peter the Great Bay and Lake Khanka are important fishing areas in the Far East coastal ecosystem, but they are facing pollution from industrial activities and heavy metal contamination. Understanding the migration and transformation of heavy metals in natural objects is crucial for ecological and scientific purposes.
Article
Environmental Sciences
Nadezhda A. Lipinskaya, Pavel A. Salyuk, Irina A. Golik
Summary: The aim of this study was to develop methods for determining the most significant contrasts in satellite ocean color data arising in the presence of a submesoscale eddy structure and to determine the corresponding depths of the upper layer of the sea where these contrasts are formed. The best characteristic for detecting the studied eddies in satellite ocean color data was the MODIS chlor_a standard product. The maximum depth of the remotely sensed contrast formation of the considered eddy vertical structure was significantly less than the maximum spectral penetration depth of solar radiation for remote sensing.
Review
Fisheries
Vladimir A. Shelekhov, Vladimir V. Panchenko
Summary: This study assessed the life span, growth pattern, and age at maturity of the Elegant sculpin Bero elegans for the first time. Observations and analysis were conducted on fish captured in specific locations in the Japan Sea from 2018 to 2022. The study found that the estimated life span is 47 months for females and 40 months for males. The growth pattern differs between males and females, and both genders reach sexual maturity at 2 years of age.
Article
Geochemistry & Geophysics
Sergey V. Prants, Maxim V. Budyansky, Pavel A. Fayman, Michael Yu. Uleysky, Aleksandr A. Didov
Summary: Oil spill incidents from tankers, port terminals, and offshore platforms have a significant impact on marine life and socio-economic services. The frequency of these incidents is increasing, requiring immediate and effective response. In this study, the pathways of spilled oil in the Peter the Great Bay (PGB) region in the Sea of Japan were simulated using a Lagrangian approach based on the velocity field of a circulation model. The simulations showed different scenarios of oil drift in different seasons, with risks of coastline contamination.
PURE AND APPLIED GEOPHYSICS
(2023)
Article
Environmental Sciences
Daniel Sultana, Duyen Kauffman, Rosemary Castorina, Michael H. Paulsen, Russell Bartlett, Kelsey Ranjbar, Robert B. Gunier, Victor Aguirre, Marina Rowen, Natalia Garban, Josephine DeGuzman, Jianwen She, Regan Patterson, Christopher D. Simpson, Asa Bradman, Sara Hoover
Summary: This study evaluated diesel exhaust (DE) exposures in disproportionately impacted communities using biomonitoring and compared results for adults and children within and between families. The results showed that DE exposure levels were associated with season and within-subject variability. The findings from this study will inform the design of effective exposure mitigation strategies in affected communities.
JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY
(2023)
