Project description
Role of microbes and sponges in microbialisation of reefs
Nutrient pollution and overfishing represent a major threat for coral reefs as they facilitate community shifts from reef-building corals to algae, increasing production of algal-derived dissolved organic matter (DOM). Since DOM cannot be consumed by most reef animals, it is transformed by microbes and sponges into particles and re-enters the food web. These recycling processes termed ‘microbial and sponge loops’ are considered as key ecosystem adaptations for reefs. However, increased algal-DOM and sponges on degraded reefs have been associated with the ‘microbialisation of reefs’. The EU-funded DDMS project intends to define whether planktonic microbes and sponges compete over DOM and describe the composition of different DOM types in past, present and future projection of available DOM.
Objective
Anthropogenic disturbances, such as nutrient pollution and overfishing, threaten coral reefs by facilitating community shifts from reef-building corals to algae, increasing production of algal-derived dissolved organic matter (DOM). DOM is the largest food source on reefs, but cannot be consumed by most reef animals. Instead, microbes and sponges transform DOM into particles that re-enter the food web. These recycling pathways, termed the “microbial and sponge loops”, are understood as crucial ecosystem adaptations for reefs to thrive as biological hotspots under nutrient-poor conditions. However, the increased load of algal-DOM on degraded reefs has been associated with the inefficient growth of pathogenic microbes—the “microbialization of reefs”.
Sponges have been hypothesized to further stimulate this microbialization by feeding on increased algal-DOM and accelerating algal proliferation via the subsequent release of nutrients. Through this “vicious circle”, microbes and sponges may jointly promote the degradation of coral reefs even faster than the usual, and much more studied, suspects of climate change (i.e. rising seawater temperature and ocean acidification).
I aim to determine whether planktonic microbes and sponges compete over DOM (i.e. feed on same or different DOM components) under past, present, and future projections of available DOM.
Thereto, I will characterize the composition of different DOM types (e.g. coral- and algal-DOM) and mixtures of DOM representing past, present and future DOM-producing communities and assess their availability (uptake) and utilization (metabolic processing) by planktonic microbes and sponges. I will further assess the ability of planktonic microbes to utilize sponge-processed water and vice versa. With this project I will lay the foundation to integrate microbes and sponges as understudied key ecosystem engineers into coral reef food web frameworks that will allow to elucidate the fate of future coral reefs.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology environmental engineering waste management waste treatment processes recycling
- natural sciences earth and related environmental sciences environmental sciences pollution
- natural sciences biological sciences ecology ecosystems
- natural sciences earth and related environmental sciences atmospheric sciences climatology climatic changes
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2019
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
1012WX Amsterdam
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.