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

Gözlem tarihi: 
25.05.2016
Konumun yada dalış noktasının adı: 
Entrée de la Grotte à Perez, Ile Plane, Marseille
Akıntı: 
none
Berraklık: 
turbid water
Su sıcaklığı: 
16℃
Derinlik aralığı: 
Min

12

(m)
Max

20

(m)
Gözlem derinliği: 
13.00(m)
Dalışın maksimum derinliği : 
22(m)
Gözlemlenen korallijenli formasyonların yatay boyutu: 
10-20 m
Yön: 
N
Önceden tanımlanmış derinliğin su sıcaklığı: 
Santigrat derece (℃): 
16.00℃
Meters: 
15.00(m)
Habitat sürekliliği: 
Sürekli
Eğim: 
Dikey
Pürüzlülük (Rugosite): 
Çok küçük
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)
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,