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25.05.2016 - 19:40 Laure TVA Entrée de la Grotte à Perez, Ile Plane, Marseille

Date of observation: 
25.05.2016
Name of location or dive site: 
Entrée de la Grotte à Perez, Ile Plane, Marseille
Current: 
none
Visibility: 
turbid water
Water Temperature: 
16℃
Vertical extent of the habitat: 
Min

12

(m)
Max

20

(m)
Observation Depth: 
13.00(m)
Maximum Dive Depth: 
22(m)
Horizontal extent of the habitat: 
10-20 m
Orientation: 
N
Water temperature at predefined depths: 
Temperature: 
16.00℃
Meters: 
15.00(m)
Habitat continuity: 
Continuous
Slope: 
vertical
Rugosity: 
Tiny
Other observations : 

 J'étais à l'extérieur de la grotte à Perez, à 2 m de l'entrée. 
Il y a dans la grotte beaucoup de paramuricea clavata et corallium rubrum. Mais pas à l'extérieur. Là ce sont surtout des parazoanthus axinella. 

Pressures and Threats: 
Non-indigenous species: Caulerpa cylindracea (Absent)
Non-indigenous species: Asparagopsis spp. (Limited)
Mucilaginous aggregations (Limited)
Organism necrosis and mortality events (Limited)
Sedimentation on coralligenous biota (Extended)
Diver recklessness (Absent)
Fishing gear (Absent)
Litter (Absent)
Anchoring (Absent)
Urban waste sources nearby (Absent)
Other
Coralligenοus Organisms: 
Eunicella cavolini (Absent)
Eunicella singularis (Absent)
Paramuricea clavata (Abundant)
Leptogorgia sarmentosa (Absent)
Savalia savaglia (Absent)
Shark eggs (Absent)
Anthias anthias (Scarce)
Epinephelus marginatus (Absent)
Scorpaena spp. (Absent)
Centrostephanus longispinus (Absent)
Other sea urchins (Absent)
Calcareous red algae (Scarce)
Peyssonnelia spp. (Absent)
Agelas oroides (Absent)
Axinella spp. (Scarce)
Myriapora truncata (Scarce)
Other erect bryozoans (Scarce)
Scleractinians (Very abundant)
Cliona spp. (Absent)
Corallium rubrum (Scarce)
Homarus gammarus (Absent)
Palinurus elephas (Absent)
Scyllarides latus (Absent)
http://cs.cigesmed.eu/sites/default/files/web_axinella_issaris_01.jpg,http://cs.cigesmed.eu/sites/default/files/web_axinella_issaris_05.jpg,http://cs.cigesmed.eu/sites/default/files/web_eunicella-cavolinii_issaris_01.jpg,http://cs.cigesmed.eu/sites/default/files/web_general_issaris_02.jpg,