Porbeagle
Porbeagle ( Lamna nasus )
The porbeagle ( Lamna nasus ) is a species of shark from the family of mackerel sharks.
Appearance
The porbeagle is up to three feet tall. Its appearance strongly reminiscent of the great white shark. His spindle-shaped body has a conical snout. The presumed maximum age is 30 years.
Distribution area
The main areas of distribution of the porbeagle are the waters of the North Atlantic. Also in the North and Baltic Sea it is very widespread. It is also found in the Mediterranean. In the southern hemisphere are mackerel sharks to South Australia, native to the coast of Chile and in subantarctic regions of space.
Way of life
Schooling fish and small whales form its main source of food. But smaller shark species have been discovered in the stomach analyzes. He also tends to cannibalism.
The porbeagle shark is viviparous. A female gives birth to one to five cubs are born that are 75 inches in size usually in the section.
People and porbeagle sharks
There are known in Europe some attacks on humans. The shark might consider float in near-coastal waters as prey. On the other hand, serves the porbeagle humans as a food fish.
Through strong overfishing beginning of the 1970s, the stocks in the North Atlantic fell sharply. As recently as 2001 was a marked stabilization of the population can be found here. Overall, the stock is but on the wane. According to the IUCN porbeagle is listed as endangered ( " vulnerable" ) ( in the Northeast Atlantic and the Mediterranean: " Endangered" and the Northwest Atlantic: " high risk "). A listing in Appendix 2 of the CITES list has been applied in 2007, but was rejected. 2007 and 2008 gave the IUCN announced that the porbeagle is retained on the basis of a study of the IUCN SSC Shark Specialist Group ( SSG) to pelagic shark and ray species status of " vulnerable".
In March 2010, was initially decided to control the trade in porbeagle sharks after a request from Germany to the CITES Conference of CITES in the Arab emirate of Qatar, the application was rejected but still on the last day of the conference in a second vote.