All Colorful Marine Aquarium Fish Species - YouTube

Jump to Highly migratory species - Epipelagic fish generally move long distances between ..
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A more bizarre example of commensalism occurs between the slim, eel-shaped pinhead and a particular species of . The pearlfish enters the sea cucumber through its anus, and spends the day safely protected inside the seacucumbers . At night it emerges the same way and feeds on small crustaceans.
There are about 162 species of fishes found naturally in  waters, including . The following list is based on the .
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Most oceanic species (78 percent, or 44 percent of all fish species), live near the . These live on or above the relatively shallow . Only 13 percent of all fish species live in the open ocean, off the shelf. Of these, 1 percent are , 5 percent are , and 7 percent are . Among  species, small coral reef-dwelling fishes, is the world's shortest lived vertebrate, the , which lives for less than 60 days.
Photo provided by FlickrCatfish tend to feed by night, especially after summer rains when they search turbid waters with their barbels for food.
Photo provided by FlickrThis page gives a list of all species of  found in the waters of . A separate list of freshwater fish is given at the bottom.
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One reason fish are so diverse is that 70 percent of the planet is covered in water. The animals in this group live in a variety of habitats ranging from coral reefs and kelp forests to rivers, streams, and the open ocean. Another is that fish are very old on the evolutionary scale. According to fossil records, they have been on Earth for more than 500 million years! The total number of living fish species—about 32,000— is greater than the total of all other vertebrate species (amphibians, reptiles, birds, and mammals) combined.In a series of educational outreach posters — including an epic 13-foot by 44-inch poster that depicts all 183 species of Wisconsin fish to average adult-size scale — Elliot is on a mission to accurately document the inhabitants of our state’s more than 15,000 lakes, rivers and streams.Kandis Elliot, emerita senior artist in the Department of Botany, is pictured with a poster she created that features life-size illustrations of every fish species in the state of Wisconsin. The poster hangs outside her office in Noland Hall.Mirrorbellies, as the researchers proposed calling these fish, produce light in the rectal bulb, a special organ located inside of the anuses. Mirror-like scales reflect this light along the fish's stomach, which helps to disguise its outline from predators looking up from below. For mirrorbellies, it seems, the sun really does shine out of their backsides.“The idea behind the posters is to create a splash,” Elliot deadpans. “There is a wow factor. We want people, especially kids, to have an awareness of all our fishes, not just hook-and-line species.”To measure the decline in open ocean ecosystems, the researchers gained access to Japanese longlining data. Pelagic longlines are the most widespread fishing gear, and the Japanese fleet the most widespread longline operation, covering all oceans except the circumpolar seas. Longlines catch a wide range of species in a consistent way over vast areas. "Whereas longlines used to catch ten fish per a hundred hooks, now they are lucky to catch one," said Myers.