In:
ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 56, No. Supplement ( 1999-01-01), p. S15-S22
Abstract:
Species composition, abundance, and biomass of micro- ( & gt;15 μm) and nano- ( & lt;15 μm) phytoplankton were studied in the western and eastern Black Sea during March–April and October 1995. A total of 142 species were identified, of which & gt;50% were dinoflagellates. Abundance and biomass values were lower during the March–April period (average 129 ± 28 thousand cells l−1 and 330 ± 124 μg l−1) than during the October period (average 364 ± 161 thousand cells l−1 and 1794 ± 515 μg l−1) and compared with previous investigations. Values for the north-westerly region were higher than for the southerly areas, probably owing to effects of the Danube river, but were much lower than previously reported, possibly indicating improved ecological conditions. In March–April, dinoflagellates (mainly Heterocapsa triquetra and Scrippsiella trochoideum) were the most important groups, whereas, in October, diatoms (mainly Pseudosolenia calcar-avis) and coccolithophores (Emiliania huxleyi) were dominant. Nanophytoplankton constituted 57% and 84% of total abundance and 8% and 3% of total biomass in spring and autumn, respectively. Microphytoplankton were dominant in the western Black Sea, whilst nanophytoplankton were dominant in the eastern region in spring.
Type of Medium:
Online Resource
ISSN:
1095-9289
,
1054-3139
DOI:
10.1006/jmsc.1999.0604
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
1999
detail.hit.zdb_id:
2463178-4
detail.hit.zdb_id:
1468003-8
detail.hit.zdb_id:
29056-7
SSG:
12
SSG:
21,3
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