Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/45189
Share/Export:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Phytoplankton growth and microzooplankton grazing along a sub-Arctic fjord (Godthåbsfjord, west Greenland) |
Authors: | Calbet, Albert CSIC ORCID ; Riisgaard, Karen; Saiz, Enric CSIC ORCID ; Zamora, Sara CSIC ORCID; Stedmon, C.; Gissel Nielsen, Torkel | Keywords: | West Greenland coast Sub-Arctic fjord Plankton community structure Microzooplankton Grazing |
Issue Date: | Dec-2011 | Publisher: | Inter Research | Citation: | Marine Ecology Progress Series 442: 11-22 (2011) | Abstract: | We evaluated the role of microzooplankton (sensu latto, grazers <500 µm) in determining the fate of phytoplankton production (PP) along a glacier-to-open sea transect in the Greenland subarctic fjord, Godthåbfjord. Based on the distribution of size fractionated chlorophyll a (chl a) concentrations we established 4 zones: (1) Fyllas Bank, characterized by deep chl a maxima (ca. 30 to 40 m) consisting of large cells, (2) the mouth and main branch of the fjord, where phytoplankton was relatively homogeneously distributed in the upper 30 m layer, (3) inner waters influenced by glacial melt water and upwelling, with high chl a concentrations (up to 12 µg l−1) in the >10 µm fraction within a narrow (2 m) subsurface layer, and (4) the Kapisigdlit branch of the fjord, ice-free, and characterized with a thick and deep chl a maximum layer. Overall, microzooplankton grazing impact on primary production was variable and seldom significant in the Fyllas Bank and mouth of the fjord, quite intensive (up to >100% potential PP consumed daily) in the middle part of the main and Kapisigdlit branches of the fjord, and rather low and unable to control the fast growing phytoplankton population inhabiting the nutrient rich waters in the upwelling area in the vicinity of the glacier. Most of the grazing impact was on the <10 µm phytoplankton fraction, and the major grazers of the system seem to be >20 µm microzooplankton, as deducted from additional dilution experiments removing this size fraction. Overall, little or no export of phytoplankton out of the fjord to the Fyllas Bank can be determined from our data | Description: | 12 pages, 7 figures, 4 tables | Publisher version (URL): | https://doi.org/10.3354/meps09343 | URI: | 10261/45189 | DOI: | 10.3354/meps09343 | ISSN: | 0171-8630 | E-ISSN: | 1616-1599 |
Appears in Collections: | (ICM) Artículos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Calbet_et_al_2011.pdf | 492,75 kB | Adobe PDF | View/Open |
CORE Recommender
SCOPUSTM
Citations
32
checked on Apr 24, 2024
WEB OF SCIENCETM
Citations
28
checked on Feb 13, 2024
Page view(s)
236
checked on Apr 24, 2024
Download(s)
115
checked on Apr 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.