Jordi Chias / Spotted catshark (Scyliorhinus canicula) just hatched from egg case that is on Seafan (Paramuricea clavata), Ullastres seamount, Costa Brava, Llafranch, Catalunya, Spain

Roberto Rinaldi / Yellow fan coral / Seafan (Paramuricea clavata) amongst mass of invasive algae (Caulerpa taxifolia) with Rainbow wrasse fish (Coris julis), Strait of Messina, Southern Italy

Wild Wonders of Europe / Lundgren / Blanket stars (Gorgonocephalus caputmedusae) climbing Fan coral (Paramuricea placomus) to position themselves in water current, Trondheimsfjorden, Norway, February 2009

Wild Wonders of Europe / Pitkin / Gorgonian coral (Paramuricea clavata) on rock face covered with Yellow encrusting anemones (Parazoanthus axinellae) sponges and corals, 'Horsehead', Lavezzi Islands, Corsica, France, September 2008

Florian Graner / Mixed cold water corals, Trondheimsfjord, Norway {Lophelia pertusa} {Paragorgia arborea} {Paramurica placata}

Sue Daly / Gorgonian coral (Paramuricea placomus) Trondheimsfjord, Norway, July.

Sue Daly / Gorgonian coral (Paramuricea placomus) Trondheimsfjord, Norway, July.

Franco Banfi / Scuba diver with Red gorgonian coral (Paramuricea clavata), Santa Teresa, Sardinia, Italy, Tyrrhenian Sea, Mediterranean.

Franco Banfi / Red gorgonian coral (Paramuricea clavata) covered with mucilage, a symptom of rising sea temperature, Ventimiglia, Italy, Ligurian Sea, Mediterranean.

Franco Banfi / Red gorgonian coral (Paramuricea clavata) covered with mucilage, a symptom of rising sea temperature, Punta Campanella Marine Reserve, Massa Lubrense, Italy, Tyrrhenian Sea, Mediterranean.

Franco Banfi / Red fan corals (Paramuricea clavata), Yellow gorgonian, (Eunicella cavolini) and Yellow cave-sponges (Aplysina cavernicola), Ischia Island, Italy, Tyrrhenian Sea, Mediterranean.

Franco Banfi / Red gorgonian coral (Paramuricea clavata) covered in mucilage, a symptom of rising sea temperature, Punta Campanella Marine Reserve, Massa Lubrense, Italy, Tyrrhenian Sea, Mediterranean.