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  1. Artikel ; Online: Migrations of young spotted seals (Phoca largha) from Peter the Great Bay, Sea of Japan/East Sea, and the pattern of their use of seasonal habitats.

    Alexey M Trukhin / Peter A Permyakov / Sergey D Ryazanov / Vyacheslav B Lobanov / Hyun Woo Kim / Young Min Choi / Hawsun Sohn

    PLoS ONE, Vol 16, Iss 1, p e

    2021  Band 0244232

    Abstract: We studied the migrations of young spotted seals during their annual cycle. In May 2017, we attached satellite tags (SPOT-293A) to three individuals (two underyearlings and one yearling) captured at their breeding ground in Peter the Great Bay, western ... ...

    Abstract We studied the migrations of young spotted seals during their annual cycle. In May 2017, we attached satellite tags (SPOT-293A) to three individuals (two underyearlings and one yearling) captured at their breeding ground in Peter the Great Bay, western Sea of Japan/East Sea. The operational time of the installed tags ranged from 207 to 333 days; a total of 27195 locations were uploaded. All three seals migrated east and further north along the coast of the mainland. The average daily migration speed of the seals ranged between 70 and 135 km/day. The yearling moved faster than the underyearlings. During early August, they arrived at their summer habitats, which were located in the northern part of the Tatar Strait (Sea of Japan/East Sea) for the underyearling seals and in Aniva Bay (Sea of Okhotsk) for the yearling seal. While moving from the place of tagging to the summer feeding grounds, the seals covered a distance of 2300 to 3100 km. From August to October, each seal permanently stayed within the same isolated area. The reverse migration of all three seals began in November. When the seals traveled south, they used the same routes by which they had moved north in the spring, but they moved at a faster speed. By December, two seals returned to their natal islands, where both stayed until their transmitters stopped sending signals (in March 2018).
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 551
    Sprache Englisch
    Erscheinungsdatum 2021-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Developing a Social–Ecological–Environmental System Framework to Address Climate Change Impacts in the North Pacific

    Steven J. Bograd / Sukyung Kang / Emanuele Di Lorenzo / Toyomitsu Horii / Oleg N. Katugin / Jackie R. King / Vyacheslav B. Lobanov / Mitsutaku Makino / Guangshui Na / R. Ian Perry / Fangli Qiao / Ryan R. Rykaczewski / Hiroaki Saito / Thomas W. Therriault / Sinjae Yoo / Hal Batchelder

    Frontiers in Marine Science, Vol

    2019  Band 6

    Abstract: Forecasting and Understanding Trends, Uncertainty and Responses of North Pacific Marine Ecosystems” (FUTURE) is the flagship integrative Scientific Program undertaken by the member nations and affiliates of the North Pacific Marine Science Organization ( ...

    Abstract “Forecasting and Understanding Trends, Uncertainty and Responses of North Pacific Marine Ecosystems” (FUTURE) is the flagship integrative Scientific Program undertaken by the member nations and affiliates of the North Pacific Marine Science Organization (PICES). A principal goal of FUTURE is to develop a framework for investigating interactions across disciplinary dimensions in order to most effectively understand large-scale ecosystem changes and resulting impacts on coastal communities. These interactions are complex, often nonlinear, occur across a range of spatial and temporal scales, and can complicate management approaches to shared and trans-boundary problems. Here, we present a Social–Ecological–Environmental Systems (SEES) framework to coordinate and integrate marine science within PICES. We demonstrate the application of this framework by applying it to four “crisis” case studies: (a) species alternation in the western North Pacific; (b) ecosystem impacts of an extreme heat wave in the eastern North Pacific; (c) jellyfish blooms in the western North Pacific; and (d) Pacific basin-scale warming and species distributional shifts. Our approach fosters a common transdisciplinary language and knowledge base across diverse expertise, providing the basis for developing better integrated end-to-end models. PICES provides the structure required to address these and other multi-national, inter-disciplinary issues we face in the North Pacific. An effective and comprehensive SEES approach is broadly applicable to understanding and maintaining resilient marine ecosystems within a changing climate.
    Schlagwörter North Pacific ; North Pacific Marine Science Organization ; social–ecological systems ; climate change ; ocean sustainability ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsdatum 2019-06-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Seasonal Hypoxia of Amursky Bay in the Japan Sea

    Pavel Ya. Tishchenko / Vyacheslav B. Lobanov / Vladimir I. Zvalinsky / Alexander F. Sergeev / Alexey Koltunov / Tatyana A. Mikhailik / Petr P. Tishchenko / Mariya G. Shvetsova / Sergey Sagalaev / Tamara Volkova

    Terrestrial, Atmospheric and Oceanic Sciences, Vol 24, Iss 6, p

    Formation and Destruction

    2013  Band 033

    Abstract: Based on detailed hydrological and hydrochemical surveys carried out in each of the four seasons of 2008, Amursky Bay in the north west quadrant of the Japan Sea was found to experience seasonal hypoxia. The primary process of hypoxia formation is a ... ...

    Abstract Based on detailed hydrological and hydrochemical surveys carried out in each of the four seasons of 2008, Amursky Bay in the north west quadrant of the Japan Sea was found to experience seasonal hypoxia. The primary process of hypoxia formation is a microbiological degradation of the ¡§excess¡¨ amount of diatoms under rather low photosynthetic active radiation in bottom layer and weak water dynamics. The microbiological decay of dead diatoms under light deficient conditions intensively consumes dissolved oxygen and produces phosphates, ammonium, silicates, and dissolved inorganic carbon. Existence of a phytoplankton ¡§excess¡¨ is caused by phytoplankton bloom resulting from nutrient pulses into Amursky Bay. There are two main sources of these nutrients: the waste waters of Vladivostok city and discharge from Razdolnaya River. The river delivers more than two times the amount of nutrients than the waste waters of Vladivostok. It is suggested that the phytoplankton ¡§excess¡¨ might be caused by an enhanced supply of nutrients delivered into the surface layer resulting from the increased discharge of the river on a short time scale. Our data suggest that hypoxia is seasonal, with a peak at the end of summer. The upwelling of the Japan Sea water in the beginning of the fall season and its advection across the shelf is the primary process by which the hypoxia is destroyed. During the winter, strong vertical mixing due to termohaline convection makes the water column uniform and brings more oxygen into the water along with high primary production under the ice. Thus, during the winter season, the ecosystem of Amursky Bay recovers completely.
    Schlagwörter Solar eclipse ; Ionospheric irregularities ; Mid-latitude ionosphere ; Wave propagation ; Geography (General) ; G1-922 ; Geology ; QE1-996.5
    Thema/Rubrik (Code) 551
    Sprache Englisch
    Erscheinungsdatum 2013-01-01T00:00:00Z
    Verlag Chinese Geoscience Union
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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