Nanoflagellates in the Gdańsk Basin: coexistence between forms belonging to different trophic types

Nanoflagellates are important bacterivores, but their role isoften underestimated because forms capable of phagotrophy andcontaining chlorophyll (mixotrophs) are excluded from analyses.Research conducted in the coastal zone of the Gdańsk Basin (BalticSea) revealed seasonal changes in the...

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Main Author: Krzysztof Rychert
Format: Article
Language:English
Published: Institute of Oceanology of the Polish Academy of Sciences 2006-06-01
Series:Oceanologia
Subjects:
Online Access:http://www.iopan.gda.pl/oceanologia/48_2.html#A10
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author Krzysztof Rychert
author_facet Krzysztof Rychert
author_sort Krzysztof Rychert
collection DOAJ
description Nanoflagellates are important bacterivores, but their role isoften underestimated because forms capable of phagotrophy andcontaining chlorophyll (mixotrophs) are excluded from analyses.Research conducted in the coastal zone of the Gdańsk Basin (BalticSea) revealed seasonal changes in the relationship between thebiomasses of small (1-8 µm) nanoflagellates with (NFChl+)and without chlorophyll (NFChl-). Three distinct patterns weredistinguished: (i) spring, when the biomass of NFChl+ was lowerthan that of NFChl-, (ii) summer and autumn, when NFChl+ weredominant (about 90%), and (iii) late autumn and winter, whenthe prevalence of NFChl+ was lower (71-79\%). Additional studiesshowed the existence of spatial differences in the compositionof the nanoflagellate community. These spatial differences werenot shaped by freshwater input. The possible importance of mixotrophicforms in the Gdańsk Basin is discussed.
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institution Kabale University
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publishDate 2006-06-01
publisher Institute of Oceanology of the Polish Academy of Sciences
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spelling doaj-art-5ed6d812268b49cfb2a04ba4d3d86b7f2025-08-20T03:49:08ZengInstitute of Oceanology of the Polish Academy of SciencesOceanologia0078-32342006-06-01482323330Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic typesKrzysztof RychertNanoflagellates are important bacterivores, but their role isoften underestimated because forms capable of phagotrophy andcontaining chlorophyll (mixotrophs) are excluded from analyses.Research conducted in the coastal zone of the Gda&#x0144;sk Basin (BalticSea) revealed seasonal changes in the relationship between thebiomasses of small (1-8 &#x00B5;m) nanoflagellates with (NFChl+)and without chlorophyll (NFChl-). Three distinct patterns weredistinguished: (i) spring, when the biomass of NFChl+ was lowerthan that of NFChl-, (ii) summer and autumn, when NFChl+ weredominant (about 90%), and (iii) late autumn and winter, whenthe prevalence of NFChl+ was lower (71-79\%). Additional studiesshowed the existence of spatial differences in the compositionof the nanoflagellate community. These spatial differences werenot shaped by freshwater input. The possible importance of mixotrophicforms in the Gda&#x0144;sk Basin is discussed.http://www.iopan.gda.pl/oceanologia/48_2.html#A10Nanoflagellates</i>MixotrophsGda&#x0144sk BasinBaltic Sea
spellingShingle Krzysztof Rychert
Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
Oceanologia
Nanoflagellates</i>
Mixotrophs
Gda&#x0144
sk Basin
Baltic Sea
title Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
title_full Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
title_fullStr Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
title_full_unstemmed Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
title_short Nanoflagellates in the Gda&#x0144;sk Basin: coexistence between forms belonging to different trophic types
title_sort nanoflagellates in the gda x0144 sk basin coexistence between forms belonging to different trophic types
topic Nanoflagellates</i>
Mixotrophs
Gda&#x0144
sk Basin
Baltic Sea
url http://www.iopan.gda.pl/oceanologia/48_2.html#A10
work_keys_str_mv AT krzysztofrychert nanoflagellatesinthegdax0144skbasincoexistencebetweenformsbelongingtodifferenttrophictypes