Jumat, 13 Mei 2011

RAHANG KERONGKONGAN SIDHAT 4 - 咽颌 - Pharyngeal jaw

RAHANG KERONGKONGAN SIDHAT 4 - 咽颌 - Pharyngeal jaw


Moray eels are cosmopolitan eels of the family Muraenidae. The approximately 200 species in 15 genera are almost exclusively marine, but several species are regularly seen in brackish water and a few, for example the freshwater moray (Gymnothorax polyuranodon) can sometimes be found in freshwater. With a maximum length of 11.5 centimetres (4.5 in), the smallest moray is likely the Snyder's moray (Anarchias leucurus), while the longest species, the slender giant moray (Strophidon sathete) reaches up to 4 metres (13 ft). The largest in terms of total mass is the giant moray (Gymnothorax javanicus), which reaches almost 3 metres (9.8 ft) and can weigh over 36 kilograms (79 lb).

Moray Eel Eating 1



Moray Eel Eating 2


http://gregladen.com/wordpress/?p=1219
http://en.wikipedia.org/wiki/Moray_eel


THE MORAY EEL

A "sea monster" not as bad as all that!

Many fear the moray eel, a fish with a snakelike and scaleless body, and specie of the Anguilliformes family. In effect, it is widely known to be aggressive, dangerous and above all, real ugly!
All the same, the diversity of its coat is at times worth comparing with the most beautiful printed fabrics: speckled, tattooed, freckled, stripped… and complete with a large range of colours: chocolate brown, off white, black, sandy
yellow and even, scarlet blue. As for its size, it varies considerably from 25 centimetres for the ribbon moray to approximately 3 metres for the giant moray!
 
Indeed, its huge head, dark eyes and concave teeth are enough to make it look menacing, yet the moray eel attacks only if it feels threatened. If it tries to bite an imprudent diver, it is only as a self-defense attack. Its bites are not venomous even if made to believe otherwise at times. However, some species can inoculate a toxin secreted by the buccal mucous membrane. In spite of all this, the moray eel has also some loyal friends: it maintains a commensal relationship with small shrimps and wrasses known as "cleaners". These guests, like a lively toothbrush, will clean off, and at the same time feed on, parasites and scraps of food from the moray’s mouth.
Discreet and secret, the moray eel lives in tropical and warm seas, hidden in the rocky crevices and coral concretions, or within the various hideaways of a shipwreck, leaving only its pointed snout visible, with its mouth wide open, indeed not a very welcoming sight…
 
It goes hunting especially at night, targeting with its keen sense of smell - which compensates for its poor eyesight - some weakened or dead fish, octopus, cuttlefish, squids and various other crustaceans; the importance of this necrophagous function is utmost, and, as such, our sea animal unknowingly plays a genuine ecological role in the proper balance of marine depths. The breeding season will be accompanied by the laying of eggs and after fertilization, these will give birth to small and translucent larva, which drifting along with the current and the passing time, will take two years to become a grown up moray eel without any pectoral or pelvic fins adorning its body; only a slight excrescence will show the existence of a thin dorsal fin. And thus, like all marine animals, the young moray eel will set out to look for its own food, confront or flee before its enemies and eventually, reproduce.


If today, certain species of moray eels are highly prized as the main character of a "bouillabaisse" or as a grilled speciality, long ago, they were used to delight the guests of a Roman, Licinius Muraena (from whom they derive their name), who reared the moray eels either for sheer exhibition purposes or… to throw in some slaves as fodder. Ever since was born the legend that they were fierce predators who would not hesitate to attack divers. This "beautiful monster" now only remains to be considered under a much more "lenient" light!

Text: © Valérie Claro   •   Photos:
© Fabrice Bettex / Mysterra

 

http://www.mysterra.org/webmag/moray-eels.html


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