Vertical distribution of mesoplankton in the open area of the Black Sea

Vinogradov, M. E.; Флинт, М. В.; Shushkina, E. A.

doi:10.1007/bf00392881

Cited by 50 publications

(26 citation statements)

References 3 publications

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“…However, significant activity of metazoans, especially vigorous swimmers, is unexpected in this sulfidic system. For example, Vinogradov et al (1985) found that O 2 concentrations of 18-22 M in the Black Sea represented the lower boundary for vertical distributions of a variety of zooplankton, including copepods, ctenophores, and chaetognaths. O 2 concentrations usually fall below 20 M near 200 m in the Cariaco Basin, which is well above the shallowest sediment trap.…”

Section: Resultsmentioning

confidence: 99%

Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant midwater source of organic carbon production

Taylor

Iabichella

et al. 2001

Limnology & Oceanography

237

287

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During the CARIACO time series program, microbial standing stocks, bacterial production, and acetate turnover were consistently elevated in the redox transition zone (RTZ) of the Cariaco Basin, the depth interval (ϳ240-450 m) of steepest gradient in oxidation-reduction potential. Anomalously high fluxes of particulate carbon were captured in sediment traps below this zone (455 m) in 16 of 71 observations. Here we present new evidence that bacterial chemoautotrophy, fueled by reduced sulfur species, supports an active secondary microbial food web in the RTZ and is potentially a large midwater source of labile, chemically unique, sedimenting biogenic debris to the basin's interior. Dissolved inorganic carbon assimilation (27-159 mmol C m Ϫ2 d Ϫ1 ) in this zone was equivalent to 10%-333% of contemporaneous primary production, depending on the season. However, vertical diffusion rates to the RTZ of electron donors and electron acceptors were inadequate to support this production. Therefore, significant lateral intrusions of oxic waters, mixing processes, or intensive cycling of C, S, N, Mn, and Fe across the RTZ are necessary to balance electron equivalents. Chemoautotrophic production appears to be decoupled temporally from short-term surface processes, such as seasonal upwelling and blooms, and potentially is more responsive to longterm changes in surface productivity and deep-water ventilation on interannual to decadal timescales. Findings suggest that midwater production of organic carbon may contribute a unique signature to the basin's sediment record, thereby altering its paleoclimatological interpretation.

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Section: Resultsmentioning

confidence: 99%

Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant midwater source of organic carbon production

Taylor

Iabichella

et al. 2001

Limnology & Oceanography

237

287

View full text Add to dashboard Cite

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“…Most species were found in both basins. In the eastern basin the fauna is rich, but the Adriatic and the Black Sea behave as specific ecosystems (Vucetic, 1957(Vucetic, , 1971Gamulin, 1979;Hure et al, 1980;Porumb et al, 1981;Fonda Umani et al, 1985Petran, 1985;Vinogradov et al, 1985).…”

Section: Zooplankton Characteristics Of Mediterranean Sea Red Sea Anmentioning

confidence: 97%

Article Review: Lessepsian migration of zooplankton through Suez Canal and its impact on ecological system

Zakaria

2015

Egyptian Journal of Aquatic Research

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The marine environment of the East Mediterranean has been considerably impacted in modern times by two man-made changes: the creation of a waterway between the Indo-Pacific and the Mediterranean basins and the control of the Nile fresh-water outflow. The opening of the Suez Canal caused a migration generally from the Red Sea to the Mediterranean, and rarely in the opposite direction as the Red Sea is generally saltier and more nutrient-poor than the Atlantic, so the Red Sea species have advantages over Atlantic species in the salty and nutrientpoor eastern Mediterranean. Accordingly Red Sea species invaded the Mediterranean ecosystem and not vice versa; this phenomenon is known as the Lessepsian migration or erythrean invasion. The composition of zooplankton in the eastern Mediterranean has been shown to include a large proportion of Indo-Pacific and other circumtropical species which have successfully settled and proliferated in this environment. During the present study, an overview is provided on zooplankton migration through Suez Canal and its impact on the ecological system based on published literature. It is also meant with the hydrographic and zooplankton characteristics of the adjacent seas. It is clear that, except jellyfish Rhopilema nomadica, the negative impact of zooplankton Lessepsian migratory species in the Egyptian Mediterranean waters is not evident. Finally, it would be concluded that, a continuous monitoring programme will be needed to record the recent erythrean zooplankton species and follow up the distribution and abundance of those previously recorded as aliens to assess their impacts on the native biodiversity of the Mediterranean. ª 2015 Hosting by Elsevier B.V. on behalf of National Institute of Oceanography and Fisheries. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…Low salinity and density in surface waters and high salinity and density of deeper waters cause stagnation. This situation leads to the existence of hydrogen sulfide in circular cyclonic stream edges (periphery) at depths of 160-200 m in regions close to the coast and at depths of 80-120 m in the central parts of the Black Sea (Vinogradov et al, 1985).…”

Section: Environmental Parametersmentioning

confidence: 99%

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

Yıldız¹,

Feyzioglu²

2014

Turk J Zool

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Vertical distribution of mesoplankton in the open area of the Black Sea

Cited by 50 publications

References 3 publications

Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant midwater source of organic carbon production

Chemoautotrophy in the redox transition zone of the Cariaco Basin: A significant midwater source of organic carbon production

Article Review: Lessepsian migration of zooplankton through Suez Canal and its impact on ecological system

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

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