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OSCAR – LOCAL KNOWLEDGE WITH NATURE SOLUTIONS FOR COASTAL RESILIENCE
We provide a Nature-Based Solution (NBS) that combines the improvement of coastal resilience and the development of blue economy through a sustainable resource exploitation, at local scale.
OSCAR consists in the use of an eco-friendly and cost-optimized multi-purpose NBS, combining offshore aquaculture activities and coastal protection. This is achieved through the implementation of seaweed farming longlines with a vertical dropper lines system, that will simultaneously promote wave energy dissipation to enhance coastal protection.
OSCAR is based on the assumption that the use of NBSs can effectively contribute to wave attenuation, thus reducing coastal erosion and overtopping of coastal areas with additional advantage of providing environmental benefits. The consideration of seaweed aquaculture farms, established on longline structures and placed seaward of the depth of closure (the seaward depth from which morphological changes, resulting from wave action, are no longer registered) enables a dynamic behaviour of the overall structure which allows them to cope with SLR and storm conditions.
Concrete Application
OSCAR is to be applied in nearshore, wave exposed areas where the adjacent shoreline is suffering from retreat. Suitable environments correspond to open sandy coasts, either with or without hard engineering coastal protection interventions. Since the NBS solution was designed for coastal resilience enhancement, simultaneously profiting from seaweed aquaculture exploitation, ideal implementation sites correspond to places vulnerable to overtopping and coastal erosion issues.
Market Potential
OSCAR solution presents a good market potential.
On general terms, both political and environmental frameworks are favorable to the development of business solutions that are aligned with sustainable development including the optimized use of natural resources and improved resilience to climate change effects.
The active use of NBSs is still at an early stage, being competitor alternatives mostly exploratory and under testing phase. Therefore, the NBS market presents a high growing potential as there is currently very little (internationally) to no competition (nationally).
Key Points
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Coastal resilience enhancement through system thinking.
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Nature-Based Solution combining offshore aquaculture activities and coastal protection.
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Blue economy development through sustainable resource.
Sectors
AQUACULTURE
BIOECONOMICS
FISHERIES
FOOD INDUSTRY
ENVIRONMENTAL TECHNOLOGIES & SOLUTIONS
OCEAN ENGINEERING
Sustainable Development Goals
CLIMATE ACTION
Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters in all countries. The solution meets this point as it specifically aims at improving resilience of vulnerable coastal areas through a system thinking approach, taking advantage of natural resources to create environmentally adaptative coastal defense solutions. Since the main wave energy absorption device is provided by floating longlines of seaweed aquaculture, the protecting structure can adapt to changing hydrodynamic conditions, presenting thus high versatility under climate change effects. This versatility to climate-related hazards, more specifically sea level rise (SLR) and increased storm intensity and frequency contributes to an enlarged window of application of the coastal protection action and thus a strengthened and adaptative resilient capacity of coastal communities.
LIFE BELOW WATER
By 2020, sustainably manage and protect marine and coastal ecosystems to avoid significant adverse impacts, including by strengthening their resilience, and take action for their restoration in order to achieve healthy and productive oceans. The actual structure of the coastal protection device consists of a seaweed aquaculture system. Seaweed aquaculture is mainly being considered here, yet the culture of other marine organisms is also possible. In any case, the use of aquaculture promotes the protection and sustainable use of marine ecosystems by creating alternative exploitation supplies. Additionally, by considering seaweed aquaculture, there can also be a relevant contribution to atmospheric carbon sequestration that will add to the positive impacts aimed by the NBS solution.ositive impacts aimed by the NBS solution.
Get in Touch
DIOGO FONSECA
Chief Operating Officer
diogo.fonseca@haedes.eu
+351 912 347 611
Company Info
HAEDES
Casais do Arrocho, S/N 2025-452 Azoia de Cima,
Santarém, Portugal
+351 912 347 611
diogo.fonseca@haedes.eu
www.haedes.eu
