• The bluntnose six-gill shark is a skilled predator and may also scavenge, feeding nocturnally on a wide variety of marine organisms including other sharks, rays, bony fishes, squid, crabs, and seals (1) (2). (eopugetsound.org)
  • Pelagic fish range in size from small coastal forage fish , such as herrings and sardines , to large apex predator oceanic fishes, such as bluefin tuna and oceanic sharks . (cloudfront.net)
  • Vision is an important sensory system for most species of fish. (wikipedia.org)
  • Fish and other aquatic animals live in a different light environment than terrestrial species. (wikipedia.org)
  • Some fishes, such as some species of carp and herring, hear through their swim bladders, which function rather like a hearing aid. (wikipedia.org)
  • The list was composed from known fish species by their Niuean names and from own observations. (seafriends.org.nz)
  • In this manner we are certain that the fish species listed here are indeed found around Niue. (seafriends.org.nz)
  • A significant addition to photographed and observed fish species was provided by Hickson Ferguson in 2010/2011, here marked by [HF]. (seafriends.org.nz)
  • The marine pelagic environment is the largest aquatic habitat on Earth, occupying 1,370 million cubic kilometres (330 million cubic miles), and is the habitat for 11% of known fish species. (cloudfront.net)
  • This lack of habitat variation results in a lack of species diversity , so the zone supports less than 2% of the world's known fish species. (cloudfront.net)
  • Although the number of species is limited, epipelagic fishes are abundant. (cloudfront.net)
  • Indeed, the species can colonize many different environments, including several unusual ones, such as concrete drainage conduits of a marine land-based fish farm plant. (bvsalud.org)
  • Amongst jawless fish, the lamprey has well-developed eyes, while the hagfish has only primitive eyespots. (wikipedia.org)
  • Pp. 94-125 in: Orlov, A. & Beamish, R. (eds): Jawless Fishes of the World, Vol. 1. (worldfish.de)
  • Jawless Fishes of the World , 1 (5): 94-125. (worldfish.de)
  • First we composed a classification tree for the most likely families of fishes to be found in temperate to tropical seas. (seafriends.org.nz)
  • Plant-eating fish such as carp eat feeds that contain plant proteins, vegetable oils, minerals, and vitamins. (globalreportingprogram.org)
  • Yvonne Sadovy, a marine biologist at Hong Kong University, prefers to call them "feed fish"-fish caught to feed other fish. (globalreportingprogram.org)
  • The demand for both fishmeal and so-called trash fish is putting increasing pressure on our marine resources," says Yvonne Sadovy, a marine biologist and professor at Hong Kong University who has studied the South China Sea for more than 25 years. (globalreportingprogram.org)
  • Marine pelagic fish can be divided into coastal (inshore) fish and oceanic (offshore) fish. (cloudfront.net)
  • As such, aquatic animals such as fish have a more specialized hearing apparatus that is effective underwater. (wikipedia.org)
  • The lateral line in fish and aquatic forms of amphibians is a detection system of water currents, consisting mostly of vortices. (wikipedia.org)
  • Fish and some aquatic amphibians detect hydrodynamic stimuli via a lateral line. (wikipedia.org)
  • But generally, all fish need a mixture of about 40 essential nutrients that include vitamins, minerals, amino acids-the building blocks for proteins-and some fats. (globalreportingprogram.org)
  • In the shallower epipelagic waters, the mirrors must reflect a mixture of wavelengths, and the fish accordingly, has crystal stacks with a range of different spacings. (cloudfront.net)
  • Fish orient themselves using landmarks and may use mental maps based on multiple landmarks or symbols. (wikipedia.org)
  • In addition, we identified multiple weakly differentiated clades in the Northeastern Atlantic Ocean and Mediterranean, at least two additional cryptic taxa off Senegal and Angola, a pronounced differentiation of ancient South African clades. (bvsalud.org)
  • Hair cells in fish are used to detect water movements around their bodies. (wikipedia.org)
  • Most epipelagic fish have streamlined bodies capable of sustained cruising on migrations . (cloudfront.net)
  • Predator fish are usually fusiform with large mouths, smooth bodies, and deeply forked tails. (cloudfront.net)
  • A further complication for fish with bodies that are rounded in cross-section is that the mirrors would be ineffective if laid flat on the skin, as they would fail to reflect horizontally. (cloudfront.net)
  • Fish vision shows adaptation to their visual environment, for example deep sea fishes have eyes suited to the dark environment. (wikipedia.org)
  • Coastal pelagic fish inhabit the relatively shallow and sunlit waters above the continental shelf , while oceanic pelagic fish inhabit the vast and deep waters beyond the continental shelf (even though they also may swim inshore). (cloudfront.net)
  • We then consulted the Niue language dictionary Tohi Vagahau Niue for Niuean names for fishes, assuming that this would cover the most common fishes found in the area. (seafriends.org.nz)
  • Much of the zone lacks nutrients for supporting fish, so epipelagic fish tend to be found in coastal water above the continental shelves , where land runoff can provide nutrients, or in those parts of the ocean where upwelling moves nutrients into the area. (cloudfront.net)
  • To feed their prawns, salmon and grouper, farmers like Ye can either feed them smaller fish, or give them commercial feeds that contain fishmeal and fish oil made from ground-up, wild fish caught at sea. (globalreportingprogram.org)
  • But most Chinese fishmeal is made from what are commonly referred to as " trash fish. (globalreportingprogram.org)
  • The first was a man-at-arms, bigly made, mounted on a bony white Normandy charger. (sfw.org.uk)
  • Many use vision to prey on zooplankton or smaller fish, while others filter feed on plankton. (cloudfront.net)
  • China has become the world's fish farm. (globalreportingprogram.org)
  • Methods: Specimens included in this one-year study inhabited drainage conduits of a land-based fish farm. (bvsalud.org)
  • Fish behavior in mazes reveals that they possess spatial memory and visual discrimination. (wikipedia.org)
  • A vast habitat for most pelagic fish, the epipelagic zone is well lit so visual predators can use their eyesight, is usually well mixed and oxygenated from wave action, and can be a good habitat for algae to grow. (cloudfront.net)
  • Some fish can see ultraviolet and some can see polarized light. (wikipedia.org)
  • Fish eyes are similar to those of terrestrial vertebrates like birds and mammals, but have a more spherical lens. (wikipedia.org)
  • Carnivorous fish including salmon typically consume feeds with 30-50 percent fishmeal and oil, and additional ingredients that are similar to herbivorous feeds. (globalreportingprogram.org)
  • Small epipelagic forage fish , such as this Atlantic herring , share similar body features as the predator fish described above. (cloudfront.net)
  • Pelagic fish live in the pelagic zone of ocean or lake waters-being neither close to the bottom nor near the shore-in contrast with demersal fish that do live on or near the bottom, and reef fish that are associated with coral reefs . (cloudfront.net)
  • Nearly all daylight fish have color vision that is at least as good as a human's (see vision in fish). (wikipedia.org)
  • The country has more than 32,000 square miles of fish farms in total-about the size of South Carolina. (globalreportingprogram.org)
  • The approach included measurements of sponge biomass and occurrence and abundance of reproductive elements across different seasons and environmental parameters, such as fish biomass, trophic resources, and wastewater flow. (bvsalud.org)
  • Epipelagic fish inhabit the epipelagic zone , the uppermost layer of the water column , ranging from sea level down to 200 m (660 ft). (cloudfront.net)