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18.06.2018 - 18:52 Laura B Les pierres à Joseph

Date of observation: 
16.06.2018
Name of location or dive site: 
Les pierres à Joseph
Current: 
none
Visibility: 
turbid water
Water Temperature: 
17℃
Vertical extent of the habitat: 
Min

13

(m)
Max

18

(m)
Observation Depth: 
16.00(m)
Maximum Dive Depth: 
18(m)
Horizontal extent of the habitat: 
less than 5 m
Thermocline's Depth: 
0.00(m)
Water temperature at predefined depths: 
Temperature: 
17.00℃
Meters: 
20.00(m)
Habitat continuity: 
Discontinuous
Slope: 
horizontal
Rugosity: 
Small
Other observations : 

Observation faite par Nicolas MOLLON - Plongeur Septentrion Environnement - N3

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