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Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts

Ertugrul Agirbas, Ali Muzaffer Feyzioglu, Ulgen Kopuz, Carole Llewellyn

Journal of the Marine Biological Association of the United Kingdom, Volume: 95, Issue: 1, Pages: 35 - 52

Swansea University Author: Carole Llewellyn

DOI (Published version): 10.1017/S0025315414001040

Abstract

The phytoplankton community structure and abundance in the south-eastern Black Sea was measured from February to December 2009 using and comparing high performance liquid chromatography pigment and microscopy analyses. The phytoplankton community was characterized by diatoms, dinoflagellates and coc...

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Published in: Journal of the Marine Biological Association of the United Kingdom
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa20551
first_indexed 2015-03-27T03:05:43Z
last_indexed 2018-02-09T04:57:12Z
id cronfa20551
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spelling 2017-12-15T14:36:36.3126792 v2 20551 2015-03-26 Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts bcd94bda79ebf4c2c82d82dfb027a140 Carole Llewellyn Carole Llewellyn true false 2015-03-26 BGPS The phytoplankton community structure and abundance in the south-eastern Black Sea was measured from February to December 2009 using and comparing high performance liquid chromatography pigment and microscopy analyses. The phytoplankton community was characterized by diatoms, dinoflagellates and coccolithophores, as revealed by both techniques.Fucoxanthin, diadinoxanthin, peridinin and 19′-hexanoyloxyfucoxanthin were themain accessory pigments showing significant correlation with diatom-C r2 ¼ 0.56–0.71, P , 0.05), diatom-C (r2 ¼ 0.85–0.91, P , 0.001), dinoflagellate-C (r2 ¼ 0.39–0.88, P , 0.05) and coccolithophore-C (r2 ¼ 0.80–0.71, P , 0.05), respectively.Microscopy counts indicated a total of 89 species, 71%of which were dinoflagellates, 23% were diatoms and 6% other species (mainly coccolithophores). Pigment-CHEMTAX analysis also indicated the presence of pico- and nanoplankton. Phytoplankton carbon (phyto-C) concentrations were highest in the upper water column, whereas chlorophyll-a (Chl-a) showed a deep maximum. Average phyto-C was higher at the coastalstation (291+66 mg l21) than at the offshore station (258+35 mg l21), not statistically different (P . 0.05). The coastal station also had higher Chl-a concentrations (0.52–3.83 mg l21) compared to the offshore station (0.63–2.55 mg l21), not significant (P . 0.05). Our results are consistent with other studies and indicate that the southern Black Sea is shifting towardsmesotrophy with the increasing prevalence of dinoflagellates compared to diatoms. Journal Article Journal of the Marine Biological Association of the United Kingdom 95 1 35 52 Black Sea, phytoplankton,high performance liquid chromatography, CHEMTAX, pigments 31 12 2015 2015-12-31 10.1017/S0025315414001040 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2017-12-15T14:36:36.3126792 2015-03-26T08:48:35.2805868 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Ertugrul Agirbas 1 Ali Muzaffer Feyzioglu 2 Ulgen Kopuz 3 Carole Llewellyn 4 0020551-05102015112501.pdf download.pdf 2015-10-05T11:25:01.8470000 Output 1296545 application/pdf Enhanced Version of Record true 2015-10-01T00:00:00.0000000 false
title Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
spellingShingle Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
Carole Llewellyn
title_short Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
title_full Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
title_fullStr Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
title_full_unstemmed Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
title_sort Phytoplankton community composition in the south-eastern Black Sea determined with pigments measured by HPLC-CHEMTAX analyses and microscopy cell counts
author_id_str_mv bcd94bda79ebf4c2c82d82dfb027a140
author_id_fullname_str_mv bcd94bda79ebf4c2c82d82dfb027a140_***_Carole Llewellyn
author Carole Llewellyn
author2 Ertugrul Agirbas
Ali Muzaffer Feyzioglu
Ulgen Kopuz
Carole Llewellyn
format Journal article
container_title Journal of the Marine Biological Association of the United Kingdom
container_volume 95
container_issue 1
container_start_page 35
publishDate 2015
institution Swansea University
doi_str_mv 10.1017/S0025315414001040
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
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description The phytoplankton community structure and abundance in the south-eastern Black Sea was measured from February to December 2009 using and comparing high performance liquid chromatography pigment and microscopy analyses. The phytoplankton community was characterized by diatoms, dinoflagellates and coccolithophores, as revealed by both techniques.Fucoxanthin, diadinoxanthin, peridinin and 19′-hexanoyloxyfucoxanthin were themain accessory pigments showing significant correlation with diatom-C r2 ¼ 0.56–0.71, P , 0.05), diatom-C (r2 ¼ 0.85–0.91, P , 0.001), dinoflagellate-C (r2 ¼ 0.39–0.88, P , 0.05) and coccolithophore-C (r2 ¼ 0.80–0.71, P , 0.05), respectively.Microscopy counts indicated a total of 89 species, 71%of which were dinoflagellates, 23% were diatoms and 6% other species (mainly coccolithophores). Pigment-CHEMTAX analysis also indicated the presence of pico- and nanoplankton. Phytoplankton carbon (phyto-C) concentrations were highest in the upper water column, whereas chlorophyll-a (Chl-a) showed a deep maximum. Average phyto-C was higher at the coastalstation (291+66 mg l21) than at the offshore station (258+35 mg l21), not statistically different (P . 0.05). The coastal station also had higher Chl-a concentrations (0.52–3.83 mg l21) compared to the offshore station (0.63–2.55 mg l21), not significant (P . 0.05). Our results are consistent with other studies and indicate that the southern Black Sea is shifting towardsmesotrophy with the increasing prevalence of dinoflagellates compared to diatoms.
published_date 2015-12-31T18:42:31Z
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score 11.048302

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