Deep-sea Atlas of the Eastern Mediterranean Sea
The IUCN Centre for Mediterranean Cooperation (IUCN-Med) and the Hellenic Centre for Marine Research present the Deep-sea Atlas of the Eastern Mediterranean Sea. Funded by the MAVA Foundation, the Atlas is the first collective work to compile the existing knowledge about the deepest waters of the Eastern Mediterranean, focusing on the “hidden” biodiversity that it hosts and main threats. The report covers five sub-regions: the Eastern Ionian, the North and South Aegean, the Libyan and the Levantine Sea.
This publication has contributions of more than 48 experts and aims to become a useful tool to support spatial and natural resource planning efforts and to contribute to the sustainable development of blue economy.
By combining information from other reports, expeditions, data on deep-sea bycatch and experimental fishing catches, as well as underwater videos, this new publication provides a general overview of the morphological and geological features, as well as data on the existing biodiversity and habitats, in particular benthic and pelagic communities. Over 46 seamounts and banks ridges, as well as the major marine canyons have been identified and described in this document. These areas can play a key role as hotspots of biodiversity, greatly affecting the productivity of offshore ecosystems and the distribution of pelagic top predators. In addition, potential sites of Essential Fish Habitats for five deep-water commercially exploited species have been identified.
“Although human has been related to the marine environment since the first steps of its evolution, our knowledge on the deep sea is extremely limited, and although great strides have been made in the last decades, the information has been very fragmented and covering just small snapshots” explains Chryssi Mytilineou, researcher of the Institute of Marine Biological Resources and Inland Waters of the Hellenic Centre for Marine Research. “The Atlas is the first step in concentrating our knowledge and identifying areas in the Eastern Mediterranean that we may need to protect”.
This report presents a first assessment of our knowledge about the vulnerable deep-sea ecosystems and has allowed to identify signs of high benthic biodiversity and other potential sites of conservation interest, that could require the establishment of binding protection areas or other effective conservation management measures.
“In the Eastern Mediterranean, enforcing the existing network of Marine Protected Areas requires increasing their coherence, connectivity and representativeness”, explains María del Mar Otero, Marine Biodiversity and Blue Economy manager at IUCN-Med. “Further designation of MPAs and Fishery Restricted Areas will be key to protect these vulnerable biodiversity hotspots, together with other measures to protect migratory and endangered fauna at open sea”.
The report also provided specific recommendations of potential measures to address some of the more pressing human activities that are presently or potentially impacting the vulnerable deep-sea ecosystems of the Eastern Mediterranean. Among these pressures are the significant concentrations of macroplastics identified in deep-sea areas, particularly near highly urbanised gulfs and submarine canyons.
