Mammals, reptiles and fish species are in danger of extinction in many freshwater biomes around the world. Atlantic Halibut. While habitat loss and pollution are significant factors in the decline … There are many endangered animals in every habitat in the world, including freshwater biomes. Freshwater fish are widely cited as the most endangered group of animals in the world.Habit loss, water pollution, and overfishing are the biggest threats to wild freshwater fish. The Mekong giant catfish, for example, is the current record-holder for the world’s largest freshwater fish ever caught, at 646 pounds.

These types of habitats include stream, rivers, ponds, lakes and wetlands.

These fish move within rivers and streams and to and from the sea to complete their lifecycles. The freshwater fishes on this list are rare because they’re critically endangered and some may already be extinct in the wild. Our freshwater habitats range from glaciers in the mountains, to lowland rivers and streams that flow into estuaries.

Top 10 Most Endangered Fish Species. Freshwater. Boasting a 50-year lifespan, it can reach a length of 9 feet and weigh up to 1,000 pounds.

Freshwater biomes are places of water that have low salt concentration.

The endangered status of this species is because the Atlantic Halibut is fish that is commonly sold in supermarkets around the world, and which have a very high risk of … As of July 2017, the International Union for Conservation of Nature (IUCN) lists 455 critically endangered fish species, including 87 which are tagged as possibly extinct. Atlantic Halibut: Bycatch victim NOAA Found in the North Atlantic Ocean, the Atlantic halibut is the largest of the flat fish species. 10. Our waterways need to be carefully managed so native fish can access the habitats they need. Fish passage management. Freshwater fish are the most endangered group of animals on the planet, with more than a third threatened with extinction, according to a report being compiled by British scientists. The IUCN also lists four fish subspecies as critically endangered. According to the International Union for Conservation of Nature's (IUCN) Red List of endangered species, 1,414 species of fish, or 5 percent of the world's known species, are at risk for extinction. 3.0% of all evaluated fish species are listed as critically endangered. Prev NEXT .