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MARIS SIGNED

Mixotrophy among small marine phytoflagellates – prevalence and impact on prokaryotic communities

Total Cost €

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EC-Contrib. €

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Partnership

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 Outcomes and results

 MARIS project word cloud

Explore the words cloud of the MARIS project. It provides you a very rough idea of what is the project "MARIS" about.

interactions    diversity    microbial    additionally    anticipated    understudied    shifts    shift    fraction    excellently    optimal    micro    small    dichotomy    community    employed    analyze    relevance    coastal    predator    career    largely    strategy    phototrophy    expertise    phytoplankton    collaborators    ocean    unicellular    scientific    international    prof    acute    anderson    scanlan    hansen    uuml    mixotrophy    lacking    marine    protist    culture    climate    misleading    fisheries    balance    overwhelmingly    potentially    organic    food    dr    trophic    outcome    influence    restart    basic    successful    fact    combine    global    strict    season    prey    unknown    regulation    zooplankton    rgens    fe    fuses    le    flawed    productivity    consistent    predictions    bacterivory    cyanobacteria    primary    prokaryotic    health    phytoflagellates    j    identity    groups    photosynthesis    environmental    considering    responsible    break    ecosystem    models    predicting    web    energy    flow    mixotrophic    abundance    msp    supervisor    bacterivorous    picture    maternity    despite    thought    exchange    bacterial    researcher   

Project "MARIS" data sheet

The following table provides information about the project.

Coordinator		 KOBENHAVNS UNIVERSITET 

Organization address
address: NORREGADE 10
city: KOBENHAVN
postcode: 1165
website: www.ku.dk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.
 Coordinator Country Denmark [DK]
 Project website https://www.researchgate.net/project/Bacterivory-in-mixotrophic-small-phytoflagellates
 Total cost 212˙194 €
 EC max contribution 212˙194 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-CAR
 Starting year 2015
 Duration (year-month-day) from 2015-05-01   to  2017-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    KOBENHAVNS UNIVERSITET DK (KOBENHAVN) coordinator 212˙194.00

Map

 Project objective

Mixotrophy, i.e. the use of photosynthesis and prey uptake for growth, is increasingly recognized as a major trophic strategy for small (≤ 20 µm) phytoflagellates, which are responsible for a significant fraction of global primary production. In fact, marine primary production in many areas is now thought to be supported by organic P and Fe derived from prey. Despite this, a consistent picture of the overall relevance of bacterivory in open ocean and coastal mixotrophic small phytoflagellates (MSP) is lacking. Additionally, a strict dichotomy between `phytoplankton´ and `zooplankton´ is still overwhelmingly employed in models predicting the flow of matter and energy through marine systems, leading to potentially flawed and misleading predictions on ecosystem productivity and the health of global fisheries. This is especially significant when considering that anticipated environmental changes related to climate change are expected to shift the phototrophy/mixotrophy balance, with largely unknown consequences. The present study will combine culture and field work to 1) determine how shifts in environmental conditions related to e.g. season, influence coastal MSP abundance, identity and bacterivorous impact on the whole prokaryotic community, and on specific prokaryotic groups, such as unicellular cyanobacteria; and 2) analyze the importance and basic regulation of bacterial uptake for understudied coastal MSP. The proposed project excellently fuses the expertise areas of the experienced researcher, Dr. Anderson (bacterivory and predator-prey interactions), with the supervisor, Prof. Hansen (mixotrophic phytoflagellates) and the international collaborators, Prof. Jürgens (protist diversity and microbial food web interactions) and Prof. Scanlan (unicellular cyanobacteria), leading to an optimal exchange of knowledge for a successful project outcome. It will additionally restart and further the promising scientific career of Dr. Anderson after her maternity break.

 Publications

year authors and title journal last update
List of publications.
2017 Ruth Anderson, Klaus Jürgens, Per J. Hansen
Mixotrophic Phytoflagellate Bacterivory Field Measurements Strongly Biased by Standard Approaches: A Case Study
published pages: , ISSN: 1664-302X, DOI: 10.3389/fmicb.2017.01398 		Frontiers in Microbiology 8 2019-06-14

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