ENDANGERED OR FOOD? THE ODD OCEAN SUNFISH!

Описание к видео ENDANGERED OR FOOD? THE ODD OCEAN SUNFISH!

ENDANGERED OR FOOD? THE ODD OCEAN SUNFISH!

The ocean sunfish or common mola (Mola mola) is one of the two heaviest known bony fish in the world, the other being the southern sunfish (Mola alexandrini) of the same genus.[4] Adults typically weigh between 247 and 2,000 kg (545 and 4,409 lb). The species is native to tropical and temperate waters around the world. It resembles a fish head with a tail, and its main body is flattened laterally. Sunfish can be as tall as they are long when their dorsal and ventral fins are extended.

Sunfish are generalist predators that consume largely small fish, fish larvae, squid, and crustaceans. Sea jellies and salps, once thought to be the primary prey of sunfish, make up only 15% of a sunfish's diet. Females of the species can produce more eggs than any other known vertebrate,[5] up to 300,000,000 at a time.[6] Sunfish fry resemble miniature pufferfish, with large pectoral fins, a tail fin, and body spines uncharacteristic of adult sunfish.

Adult sunfish are vulnerable to few natural predators, but sea lions, killer whales, and sharks will consume them. Sunfish are considered a delicacy in some parts of the world, including Japan, Korea, and Taiwan. In the European Union, regulations ban the sale of fish and fishery products derived from the family Molidae.[7] Sunfish are frequently caught in gillnets.

A member of the order Tetraodontiformes, which also includes pufferfish, porcupinefish, and filefish, the sunfish shares many traits common to members of this order. The ocean sunfish, Mola mola, is the type species of the genus.

The lifespan of an ocean sunfish is up to 23 years.

Conservation Status
The International Union for Conservation of Nature (IUCN) has listed the ocean sunfish as "Vulnerable." Currently, sunfish are not targeted for human consumption, but they are endangered by bycatch. Reported estimates in California are that 14 percent to 61 percent of the fish caught by people seeking swordfish is sunfish; in South Africa, they make up 29 to 79 percent of the catch intended for horse mackerel, and in the Mediterranean, an astounding 70 to 95 percent of the total catch for swordfish is, in fact, ocean sunfish.

The global population of sunfish is difficult to determine, since they spend so much time in deep water, although tagging has become more common. Sunfish may be a crucial part of the planet's changing ecosystem under climate change: They are among the world's most abundant eaters of jellyfish, and global warming appears to be resulting in an upsurge of jellyfish numbers.

The biggest natural predators of ocean sunfish are orcas and sea lions.

Ocean Sunfish and Humans
Despite their enormous size, ocean sunfish are harmless to humans. They move slowly and are likely more frightened of us than we are of them. Because they are not considered a good food fish in most places, their biggest threats are likely being hit by boats and being caught as bycatch in fishing gear.

Комментарии

Информация по комментариям в разработке