Next to the fish / flatfish



Next to the fish is also called fish demersal flatfish with a wide distribution, covering the Persian Gulf and the east coast of Africa to Japan, north to the south coast of Australia and the Indo-Pacific. This flatfish have the ability to disguise her body with the surrounding environment as camouflage, so the prey can be manipulated and can be easily captured. Usually these fish to bury his body in the mud or sand on the seabed, while the only eyes that come to the surface.Her eyes can be raised or lowered and moved freely. Without prompting, he very patiently waiting for their prey until the prey is really close and careless, with a very rapid movement and sudden ambush, rarely prey can escape from his ambush. Morphological adaptation is a very useful first fish to protect themselves from larger predators and prey both to facilitate it.

 Scientific classification

Next to the fish belonging to the order Pleuronectiform. The Order consists of a variety of species. Based on the findings of European researchers have collected as many as 28 species of flatfish (flatfish), and there are only 6 species of high commercial value, namely Botidae (Bothus ocellatus), Cynoglossidae, Citaridae, Pleuronectidae (Pseudorhombus arsius), Scoftalmidae (Scophtalmus rhombus) , and Soleidae. Soleidae family consists of two species, namely Achiroides leucorhynchos and Achiroides melanorhynchus which belong to the genus Achiroides. The other type is Psettodes erumei, Engyprosopon sp, and Psetta maxima.


Morphological traits

The morphology of fish has a flattened body shape, both eyes are on one side, the other side being no eye (that's why this fish called flatfish) and a little pigment. Length of these fish average about 30 cm and can reach 45 cm. These fish are found in estuaries and shallow water, sand or mud at the bottom to a depth of 200 m. Next to young fish commonly found in brackish water. Major food fish are benthic animals, generally the crustaceans and invertebrate.

Asymmetrical shape that of the adjoining fish flatfish skull is the result of gradual evolution. This is reinforced by the discovery of fossils of a strange-eyed fish from the waters of ancient Europe. This fossil, which lived 50 million years ago, with one eye on his head and the other is next door. The asymmetrical shape allows them to lie flat on the ocean floor while waiting for prey. Flatfish fossils are also found in museums in England, France, Italy and Austria. The fish live in warm shallow waters in Europe in the Age of Eocene Epoch when the world was temperate, as well as whales and a new modern birds first evolved.

Next to the fish usually spawn in offshore areas and there are spawn in estuaries. In all reproductive females are able to release several hundred thousand eggs up to two million eggs. The eggs will be sized larvae from 1.5 to 3 mm. At the time he was a flatfish larvae to mature, more and more shaped flat body, while one of his eyes moving towards one side of his body. After the lower body color changed to white.

Nutrient content of fish is quite high and it is also delicious, the fish flesh side is not too thick but it was very tasty. This fish is also believed to improve stamina. Next to the fish usually exported in the form of fillets with EU objectives. Types are in demand and have a high selling price is Psetta maxima. Another type of export markets is also having sp Engyprosopon which are found in the waters of Semarang and surrounding areas with the aim of export to Japan.


Engyprosopon sp of interest for export share is larger than 20 cm. To obtain the necessary mesh size larger so that was kind of a great caught and also required the withdrawal speed of larger nets (about 4-5 knots). In addition to fish exported Next door is also consumed in the country, are generally sold fresh or in the form of food (usually fried or cooked flavor tauco).

But keep in mind Fish Next to it also is one of the carriers of pests and diseases of fish. Based on the Decree of the Minister of Agriculture Attachments number: 841/KptsIK.220/7/99 dated July 22, 1999 about the types of Pests and Diseases of Fish Quarantine and Types of Disease Carrier Fish Quarantine, noted that the adjoining fish species Psettodes erumei as carrier / host of epizootic diseases Haemotopotic Necrosis (EHN) caused by indovirus with wide spread area that is America, Europe, Australia, Africa and Asia.

0 comments :

Post a Comment

Powered by Blogger.