13.09.2017 - 09:10 Subaquatique Club Forezien Frejus Le Lion de mer | CIGESMED for Divers

Data dell'osservazione:

17.06.2017

Nome della località o del sito d'immersione:

Frejus Le Lion de mer

Corrente:

weak

Visibilità:

turbid water

Temperatura dell'acqua:

20℃

Profondità dell'osservazione:

18.00(m)

Estensione orizzontale delle concrezioni coralligene osservate:

5-10 m

Orientamento:

S

Continuità dell'habitat:

Discontinuo

Inclinazione:

Inclinato

Rugosità:

Media

Pressures and Threats:

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

Pressioni e minacce:

Baptiste Chomat

Coralligenοus Organisms:

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,