Saturday, June 23, 2012

Life of Frogfish

Life of Sea | Frogfish | Frogfish, Antennariidae family, are a type of anglerfish in the order Lophiiformes. They are known as anglerfish in Australia, where 'frogfish' refers to a different type of fish. Anglersfish are found in almost all tropical and subtropical seas and oceans around the world, the main exception of the Mediterranean. Frogfish lives in tropical and subtropical regions of the Atlantic and Pacific, but also in the Indian Ocean and Red Sea. The Brackishwater Frogfish is at home in ocean water and brackish and fresh water around river mouths. The Sargassumfish lives in groups of drifting Sargassum, which often floats in the deep ocean and are known to the sargassumfish to take as far north as Norway. 
Scientific classification
Kingdom:     Animalia
Phylum:     Chordata
Class:     Actinopterygii
Order:     Lophiiformes
Family:     Antennariidae

Frogfish have a stocky appearance, atypical of the fish. They are often brightly colored, white, yellow, red, green or black or spotted in different colors to mix with their coral environment. Colouring can vary within a species, making it difficult to distinguish. Frogfish have small, circular gill openings behind their pectoral fins. With the exception of Butler's frogfish and the Rough monkfish, frogfish use a gas bladder to regulate their buoyancy. The most obvious of these is that they have their own fishing gear bear, in the form of a "fishing rod and bait." The staff consists of the first ray of the dorsal (back) fin, while the lure or bait, is a fleshy bit on the end that is used to attract prey. In the warty frogfish this plug not only looks like a fish, but will be moved through the water as if it.
The unusual appearance of the frogfish is designed to hide from predators and sometimes for a potential meal to mimic its prey. For the scale-free and unprotected frogfish, the camouflage is an important defense against predators. Some frogfish can also blow themselves, such as puffer, by sucking in water in a threat display. In aquariums and in nature, frogfish are observed when flushed from their hiding places and clearly being attacked by clownfish, damselfish and wrasse, and aquariums, to be slain. Many frogfish to their color. The bright colors are generally yellow or yellow-brown, while the darker green, black or dark red. They usually appear with the lighter color, but the change can last anywhere from a few days to several weeks. It is not known which leads to the change.
Frogfish do not generally move very much, preferring to lie on the seabed and to wait for prey to approach. Once the prey is spotted, they can approach slowly using their pectoral fins and pelvic fins to walk on the floor. They can move into something like a slow canter, where they move their pectoral fins forward and backward simultaneously, transferring their weight to the ventral fins, while the pectoral fins forward. Both gait, can relate to short pieces. In open water swimming frogfish with blows of the tail fin. They also have a sort of jet propulsion often used by younger frogfish. It is achieved by forcing their rhythmic breathing in water through their gill openings, which lie behind their pelvic fins. The sargassum frogfish has been modified fins that can grab strands of Sargassum, so the "climb" by the seaweed. 
Frogfish eat crustaceans, other fish, and even every other. Apart of Sargassum frogfish, frogfish are very poor swimmers.They their time at the bottom or "walk" about using the pectoral (chest) and pelvis (hip) fins, those muscles and can be moved as limbs. These ensure that frogfish to move, looking for a suitable hunting place, unnoticed by both their prey and their predators.With their own pole and bait, and some of the best camouflage in the fish world, it is not surprising that frogfish so successful hunters. Some species can even color during hour of their surroundings. The sargassum frogfish is spotted the body such and such colors, it blends the Sargassum seaweed which it lives. It is therefore very difficult for a potential victim for these fish to be seen, even if only an inch or so away, by which time it is too late. 
The reproductive behavior of the normally solitary frogfish is still not fully explored. There are few observations in the aquarium and even less from the wild. Most species are free spawning, with females laying the eggs in the water and come back for males to fertilize them. The male begins to approach the female around two days before spawning. It is not known if the brood is predetermined by an external factor, such as the position of the moon, or if the man is attracted to a scent or signal released by the female. In all hitherto observed breeding pairs, one partner was noticeable, sometimes ten times larger than the other. When the sex could be determined, the larger partner was always the female. 
Many public aquariums in the world to keep frogfish. Frogfish are also available from appropriate private special stores and websites. Although they are valued for their unique appearance, it is not easy for several reasons. They often refuse food or very thick when they do accept. Moreover, they usually only be effective if they eat anything up to twice their size, including other frogfish, even potential partners. Also, because they can change their color, many lose the bright patterns they have in the first place, especially when taken in empty tanks or more dull colored in contrast to the bright coral environments they are accustomed. Although frogfish have been observed to spawn in captivity, captive breeding is difficult. It is currently not known how sex most species without dissection, so keeping a suitable pair brings together problems.

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