13.09.2017 - 09:10 Subaquatique Club Forezien Frejus Le Lion de mer | CIGESMED pour les plongeurs

Date de l'observation:

17.06.2017

Nom de la localité ou du site de plongée:

Frejus Le Lion de mer

Courant:

weak

Visibilité:

turbid water

Température de l'eau:

20℃

Profondeur de l'observation:

18.00(m)

Etendue horizontale du concrétionnement coralligène observé:

5-10 m

Orientation:

S

Continuité de l'habitat:

Discontinu

Pente:

Inclinée

Rugosité:

Moyenne

Pressions et menaces:

Non-indigenous species: Caulerpa cylindracea (Absent)

Non-indigenous species: Asparagopsis spp. (Limited)

Mucilaginous aggregations (Absent)

Organism necrosis and mortality events (Absent)

Sedimentation on coralligenous biota (Limited)

Diver recklessness (Limited)

Fishing gear (Absent)

Litter (Absent)

Anchoring (Absent)

Urban waste sources nearby

Other

Autres pressions et menaces:

Baptiste Chomat

Organismes du coralligène:

Eunicella cavolini (Absent)

Eunicella singularis (Abundant)

Paramuricea clavata (Absent)

Leptogorgia sarmentosa (Absent)

Savalia savaglia (Absent)

Shark eggs (Absent)

Anthias anthias (Scarce)

Epinephelus marginatus (Absent)

Scorpaena spp. (Absent)

Centrostephanus longispinus (Absent)

Other sea urchins (Abundant)

Calcareous red algae (Scarce)

Peyssonnelia spp. (Abundant)

Agelas oroides (Abundant)

Axinella spp. (Scarce)

Myriapora truncata (Scarce)

Other erect bryozoans (Scarce)

Scleractinians (Scarce)

Cliona spp. (Scarce)

Corallium rubrum (Absent)

Homarus gammarus (Absent)

Palinurus elephas (Absent)

Scyllarides latus (Absent)

https://cs.cigesmed.eu/sites/default/files/web_axinella_issaris_01.jpg,https://cs.cigesmed.eu/sites/default/files/web_axinella_issaris_05.jpg,https://cs.cigesmed.eu/sites/default/files/web_eunicella-cavolinii_issaris_01.jpg,https://cs.cigesmed.eu/sites/default/files/web_general_issaris_02.jpg,