Coastal areas conservation strategies often left deeper habitats, such as mesophotic ones, unprotected and exposed to anthropogenic activities. In this context, an approach for including the mesophotic zone inside protection plans is proposed, considering 27 Italian Marine Protected Areas (MPAs) as a model. MPAs were classified considering their bathymetries, exposure to marine heat waves (MHWs), mass mortality events (MMEs) and, using a local ecological knowledge (LEK) approach, the estimated resilience of certain sessile species after MMEs. Only 8 MPAs contained considerable mesophotic areas, with stronger MHWs mainly occurring in shallower MPAs, and MMEs mostly affecting coralligenous assemblages. Even with only a 10% response rate, the LEK approach provided useful information on the resilience of certain species, allowing us to suggest that the presence of nearby mesophotic areas can help shallower habitats facing climate change, thus making the “deep refugia” hypothesis, usually related to tropical habitats, applicable also for the Mediterranean Sea.

Depth range
46- 1523 m

Mesophotic “mentions”
40 x (total of 6141 words)

Classification
* Focused on 'mesophotic' depth range
* Focused on 'temperate mesophotic ecosystem'

Fields
Climate Change
Management and Conservation

Focusgroups
Overall benthic (groups)

Locations
Italy - Adriatic-Ionian
Italy - Ligurian-Tyrrhenian
Italy - Mediterranean

Platforms
Land-based