Q 60 - What is the impact of CC on deep ecosystems?#

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Operational approaches

ESE1 - Ecological toolkit#

Practices: Scoping Implementation and management
Spatial scales: Transboundary / sea basin National Regional / local
Protection regimes: Strict protection Non-strict protection
Marine zones: Deep sea

Criteria classes: 1.1.1 Vulnerability 1.1.2 Stability 1.1.3 Functional hotspots

Criteria

Operational approaches: (Method) Climate change impact assessment

Implementation details

The impacts of climate change on deep ecosystems (i.e., at a depth > 200 m) is still mainly unknown as deep sea ecosystems are largely unexplored. Through the Scoping phase (step “setting the assessment” Deliverable 3.3, page 21), define the species and conservation features, the marine region and the spatial and temporal scale of the assessment. Once the targets of the analysis are defined, analyze species traits and their sensitivity (page 58), vulnerability, adaptivity (Deliverable 3.3, page 93) as a proxy to identify the potential impacts on climate change on the target conservation features. Because of the severe lack of knowledge, information, and data in the deep sea, carefully consider to run the uncertainty assessment (Deliverable 3.3, page 98) to record knowledge gaps and the other sources of uncertainty.

Performing a risk assessment for deep-sea species could provide a proxy of present and future exposure of deep ecosystems to CC, especially as physical parameters become increasingly available. To do so, follow the step-by-step MSP4BIO CC-related guidance searching for climate stable areas (Climatic stability, refuge areas) and analysing the Time of Emergence of each stressors. Protecting stable and connected areas (larval source and spawning areas) could be a key lever toward deep-sea species protection.

References

  • Cambra E., Conversi A., Whatley L., Menegon S., Beckaert M., Bongiorni L., Calado H., Pinarbasi K., Barboza F., Lauri K., Sciascia R., Cristina A., Marasovic T, Boudy C., Alloncle N., Gissi E. (2024). Guidance for including climate change scenarios in protection and prioritization strategies for Marine Protected Areas development. Deliverable D3.3, under the WP3 of MSP4BIO project (GA n°101060707)