3 research outputs found

    ΠžΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΠΈ микробиологичСского состава Π²ΠΎΠ΄ Ρ€Π΅ΠΊΠΈ Раздольной (юТноС ΠŸΡ€ΠΈΠΌΠΎΡ€ΡŒΠ΅)

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    ΠŸΡ€ΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π° ΠΎΡ†Π΅Π½ΠΊΠ° числСнности ΠΈ Π΅Π΅ сСзонной измСнчивости для Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΈΠ½Π΄ΠΈΠΊΠ°Ρ‚ΠΎΡ€Π½Ρ‹Ρ… Π³Ρ€ΡƒΠΏΠΏ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ² Π² повСрхностных Π²ΠΎΠ΄Π°Ρ… Ρ€. Раздольной. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдования ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, Ρ‡Ρ‚ΠΎ ΠΎΠ½ΠΈ ΠΏΠΎΠ΄Π²Π΅Ρ€ΠΆΠ΅Π½Ρ‹ высокому комплСксному органичСскому, Ρ‚Π΅Ρ…Π½ΠΎΠ³Π΅Π½Π½ΠΎΠΌΡƒ ΠΈ микробиологичСскому Π·Π°Π³Ρ€ΡΠ·Π½Π΅Π½ΠΈΡŽ. Π’ повСрхностных Π²ΠΎΠ΄Π°Ρ… Ρ€. Раздольной Π±Ρ‹Π»ΠΈ выявлСны эколого-трофичСскиС Π³Ρ€ΡƒΠΏΠΏΡ‹ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ², ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π»ΠΈ участиС Π² ΠΎΡ‡ΠΈΡ‰Π΅Π½ΠΈΠΈ Π²ΠΎΠ΄ Ρ€Π΅ΠΊΠΈ. Однако ΠΈΠ·-Π·Π° постоянного ΠΏΡ€ΠΈΡ‚ΠΎΠΊΠ° сточных Π²ΠΎΠ΄ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΈ Π½Π΅ успСвали ΠΏΠ΅Ρ€Π΅Ρ€Π°Π±Π°Ρ‚Ρ‹Π²Π°Ρ‚ΡŒ ΠΏΠΎΡΡ‚ΡƒΠΏΠ°ΡŽΡ‰Π΅Π΅ органичСскоС вСщСство, Ρ‡Ρ‚ΠΎ ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π΅Ρ‚ Π½Π° Π½Π΅ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒ Π΄Π°Π½Π½ΠΎΠΉ экосистСмы ΠΊ ΠΏΠΎΠ»Π½ΠΎΠΌΡƒ ΡΠ°ΠΌΠΎΠΎΡ‡ΠΈΡ‰Π΅Π½ΠΈΡŽ. Богласно классификатору качСства Π²ΠΎΠ΄, Π²ΠΎΠ΄Ρ‹ Ρ€. Раздольной ΠΏΠΎ микробиологичСским показатСлям отнСсСны ΠΊ грязным Π² Π»Π΅Ρ‚Π½ΠΈΠΉ сСзон, ΠΊ загрязнСнным Π² вСсСнний ΠΈ осСнний ΠΏΠ΅Ρ€ΠΈΠΎΠ΄Ρ‹ ΠΈ ΠΊ чистым Π² Π·ΠΈΠΌΠ½ΠΈΠΉ сСзон

    Seasonal hydrological and hydrochemical surveys in the Voevoda Bay (Amur Bay, Japan Sea)

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    Hydrological and hydrochemical surveys were conducted in the Voevoda Bay in May, August, and October, 2011 and February, 2012, in total 140 stations. Free water exchange of the bay with the Amur Bay is observed, with exception of its inner bights Kruglaya and Melkovodnaya. The water exchange is maintained by anticyclonic circulation with the inflow along the southern coast and outflow along the northern coast of the Voyevoda Bay. However, the opposite cyclonic circulation is observed in the Melkovodanaya Bight because of its coastal line patterns and fresh water discharge by the river. Dissolved oxygen content and partial pressure of CO2 in the bay waters are determined mostly by intensive processes of production and destruction of organic matter. There are three main groups of primary producers there, as diatom algae, sea grass Zostera marina , and periphyton. Specific chemical regime is formed in the Melkovodnaya Bight, in particular in winter when primary production depends on the ice cover and is driven by variations of photosynthetically active radiation passed through the ice. Seasonal variability of production-destruction processes intensity is discussed on the data of chemical parameters changes

    Role of downwelling/upwelling in formation/destruction of hypoxia in the bottom waters of the Amur Bay (Japan Sea)

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    Downwelling/upwelling influence on hypoxia at the bottom of the Amur Bay is determined on the data of oceanographic surveys conducted aboard RV Impulse in August 2012 and RV Malachite in August 2013 coupled with the data of monitoring oceanographic station in the bay. The hypoxia develops in the period of downwelling circulation driven by southern and southeastern winds and relaxes in conditions of upwelling induced by northern and northwestern winds
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