Plongée de Mark Milec à Aquarium West - Îles Turques Et Caïques, Providenciales

Mark Milec à Aquarium West
Îles Turques-et-Caïques Providenciales Caribbean

Nº24 Date : 2014-03-08 - 10:07
Profondeur Max: 24.4m Durée : 41mins

Profil de plongée

Photos

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Temp: Surf 26°C Fond 26°C
Type de plongée : Loisir, Profonde, Récif
Visibilité : Excellente Type d'eau Salée

Equipement particulier utilisé

Lest : 6.4 kg

Récemment sur Providenciales

Photos récentes sur Providenciales

Centre de plongée & Palanquée

Plongée avec Art Pickering's Provo Turtle Divers

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Profil de plongée

Données fournies par EOL.org

Espèces identifiées

Gymnothorax moringa (Cuvier, 1829) (Common conger) A benthic and solitary species abundant in shallow rocky and grassy areas and on coral reefs; less common in turbid bays or harbors. Its bite is very dangerous . Active during the day, sometimes together with other ...
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Carcharhinus perezii (Poey, 1876) (Caribbean reef shark) Found on continental and insular shelves, often near drop-offs on the outer edges of reefs. May rest on the bottom . Usually found in reefs, at less than 30 m deep . Feed on bony fishes, including bigeyes . Vivipa...
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Ginglymostoma cirratum (Bonnaterre, 1788) (Nurse shark) During the day the nurse shark is a sluggish animal, spending most of its time resting on sandy bottoms, or in crevices in rocks and coral reefs. Often several nurse sharks may congregate when resting, sometimes even ...
Lire la suite During the day the nurse shark is a sluggish animal, spending most of its time resting on sandy bottoms, or in crevices in rocks and coral reefs. Often several nurse sharks may congregate when resting, sometimes even piling on top of one another . At night however, the nurse shark actively roams the sea bottom and reef for prey. It feeds on bottom invertebrates such as spiny lobsters, shrimps, crabs, sea urchins, squid and octopi . It is also feeds on fish, its nocturnal nature enabling it to prey on resting fish that would be too active during the day to capture . The nurse shark's small mouth and large pharynx enable it to feed by a unique suction method, effectively making the nurse shark the 'hoover' of the ocean floor. By cupping its mouth over a hole or crevice and expanding its throat, it creates a vacuum that sucks prey out of their hiding . This suction-feeding is also useful for extracting snails from their shells , and it will dig in sand to root out prey sensed by its fleshy barbels . The nurse shark is one of few sharks in which courtship behaviour is relatively well known . The male swims alongside the female, grabs one of the pectoral fins in his mouth, rolls her over and they mate . A large number of males will often try to mate with a single female, and females often bear numerous bite-scars and bruises received during mating attempts. It is therefore not surprising that females frequently try to avoid males by swimming in very shallow water, where they can bury their pectoral fins in the sand . Nurse sharks are ovoviviparous , a method of reproduction whereby the young develop inside a weakly-formed egg shell within the mother, receiving nourishment from their yolk sac, for five to six months . The females move to shallow seagrass beds and coral reefs to give birth to 20 to 30 pups in late spring and summer . Like many sharks the nurse shark is slow growing, with males not reaching maturity until 10 to 15 years of age, and females 15 to 20 years .

Panulirus argus (Latreille, 1804) (Caribbean spiny lobster)

Pterois volitans (Linnaeus, 1758) (Red lionfish)

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