Friday, November 16, 2012

Deep See Dragonfish ( Grammatostomisa flagellibarba)

The deep see Dragonfish, sometimes known as the scaleless dragonfish is a ferocious predator that inhabits the deep oceans of the world. Known scientifically as Grammatoatomias flagellibarba , it has extremely large teeth compared to its body size. In spite of its gruesome appearance. its is a small fish, measuring only about 15 centimeters in length. There are several different species of dragonfish. All are very similar in appearance.

The Deep sea dragnofishis one of the many species of deep sea fish that can produce its own light through a chemical process known as bioluminescence. The light is produced by a special organ known as a photophores. It is believed that the fish can use these flashing lights in the dark waters to attract prey and even to signal potential mates. The dragonfish has a large head and mouth equipped with many sharp , fang-like teeth. It also has a long protrusion known as a barbel attached to its chin. This barbel is tipped with a light-producing photophores along the sides of its body. These light organs may be used to signal other dragon fish during mating. They may also serve to attract and disorient prey fishes from deep below.

The dragonfish can use its light producing barbel like a fishing lure. By flashing it on and off and waving it back and forth, it is though that the dragonfish can attract the attention of its potential meal. Once an unsuspecting fish gets too close, it is snapped up in the dragonfish's powerful jaws.

The large teeth of the dragonfish help it to grab its prey as it hunts in the dark waters of the deep sea. It will feed on small fish and crustaceans as well as anything else it can find. Since many of their prey also produce light themselves, the dragonfifh has evolved special method of remaining hidden from predators after its meal.

Because they live in extremely deep waters, very little is known about the mating habits of the drgonfish. It is believed  that they are external spawners, meaning that  the female releases eggs into the water to be fertilized by the male. The eggs then float to the surface where they remain until hatching. Once  the eggs hatch, the tiny larvae are left to fend for them selves until they can reach maturity. Once mature, they return to the deep ocean to spend the rest of their lives.

The deep sea dragonfish lives in deep ocean waters at  depths of up to 5000 feet(1500 meters) Although dragofish species are found in most oceans the world, the deep sea dragonfish is limited mainly to the North and western Atlantic Ocean and Gulf of Mexico.

Tuesday, November 13, 2012

A list of amazing creatures of the deep ocean


Name                          Scientific name                    Living depth range

Chambered Nautilus                      Nautilus pompilius                                  Down to 1800ft
Giant Squid                                   Architeuthis dux                                      Down to 10000ft
Giant Tube Worm                         Riftia pachyptila                                      Over 50000ft
Sperm Whale                               Physeter macrocephalus                          Down to 10000ft
Oarfish                                         Regalecus glesne                                      Down to 3000ft
Vampire Squid                             Vampyroteuthis infernalis                        1800 to 3500ft
Firefly Squid                                 Watasenia scintillans                               600 to 1200ft
Giant Isopod                                 Bathynomus giganteus                            Over 200ft
Lanternfish                                    Symbolophorus barnardi                         1200 to 3000ft
Gulper Eel                                    Eurypharynx pececanoides                      Between 500- 6000ft
Atlantic Hagfish                            Myxine glutinosa                                      Down to 4000ft
Coelacanth                                   Latimeria chalumnae                               600 to 1000ft
Sixgill Shark                                 Hexanchus griseus                                    Down to 6000ft
Deep Sea Dragnofish                   Grammatostomias flagellibarba               Down to 5000ft