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Coccolithophore Dis...
Coccolithophore Distribution in the Western Black Sea in the Summer of 2016
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- Dimiza, Margarita D. (author)
- Natl & Kapodistrian Univ Athens, Dept Geol & Geoenvironm, Athens 15784, Greece.
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- Triantaphyllou, Maria V. (author)
- Natl & Kapodistrian Univ Athens, Dept Geol & Geoenvironm, Athens 15784, Greece.
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- Ravani, Alexandra (author)
- Natl & Kapodistrian Univ Athens, Dept Geol & Geoenvironm, Athens 15784, Greece.
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- Malinverno, Elisa (author)
- Univ Milano Bicocca, Dept Earth & Environm Sci, Piazza Sci 4, I-20126 Milan, Italy.
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- Karatsolis, Boris-Theofanis (author)
- Uppsala universitet,Paleobiologi
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- Psarra, Stella (author)
- Inst Oceanog, Hellen Ctr Marine Res, Anavyssos 19013, Greece.
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- Karageorgis, Aristomenis P. (author)
- Inst Oceanog, Hellen Ctr Marine Res, Anavyssos 19013, Greece.
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Natl & Kapodistrian Univ Athens, Dept Geol & Geoenvironm, Athens 15784, Greece Univ Milano Bicocca, Dept Earth & Environm Sci, Piazza Sci 4, I-20126 Milan, Italy. (creator_code:org_t)
- MDPI, 2023
- 2023
- English.
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In: Diversity. - : MDPI. - 1424-2818. ; 15:12
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https://uu.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- Coccolithophores are an important component of phytoplankton abundance and biomass in the brackish environments of the Black Sea. Here, the abundance, composition, and distribution of coccolithophores were investigated in water samples taken from the first 50 m at 18 stations in the western Black Sea during a coccolithophore bloom, in June 2016. The total cell abundances ranged from 2 to 763 x 104 coccospheres L-1; Emiliania huxleyi was the most dominant species, but also Syracosphaera spp. (S. dilatata and S. molischii), Acanthoica (A. acanthifera and A. quattrospina), and Algirosphaera robusta displayed remarkably high concentrations. The formation of the seasonal thermocline significantly affects the vertical distribution of coccolithophores. Emiliania huxleyi, Syracosphaera spp., and Acanthoica spp. were restricted to the upper part of the water column, whereas high abundances of Algirosphaera robusta occurred below the thermocline. Overall, our results show significant differences in the vertical (ANOSIM R = 0.50, p = 0.0001) and spatial (ANOSIM R = 0.18, p = 0.0006) distribution of coccolithophores. Higher abundances of E. huxleyi and Syracosphaera spp. were recorded in the northwestern inner shelf region when compared to the open-sea samples. The observed coccolithophore spatial distribution is suggested to be mostly associated with the influx of less saline river water with high nutrient concentrations.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Keyword
- living coccolithophores
- summer blooms
- species composition
Publication and Content Type
- ref (subject category)
- art (subject category)
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