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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.

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

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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