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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.

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

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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