Fish that live and feed on or near the bottom of seas or lakes
Bluespotted ribbontail ray resting on the seafloorRhinogobius flumineus swim on the beds of rivers
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).[1] They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks.[1] In coastal waters, they are found on or near the continental shelf, and in deep waters, they are found on or near the continental slope or along the continental rise. They are not generally found in the deepest waters, such as abyssal depths or on the abyssal plain, but they can be found around seamounts and islands. The word demersal comes from the Latin demergere, which means to sink.
Demersal fish are bottom feeders. They can be contrasted with pelagic fish, which live and feed away from the bottom in the open water column.
Demersal fish fillets contain little fish oil (one to four per cent), whereas pelagic fish can contain up to 30 per cent.[not verified in body]
^ abWalrond C Carl . "Coastal fish - Fish of the open sea floor" Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009
Demersalfish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone). They occupy the sea floors and lake...
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 demersalfish that live...
distinction between demersal species of fish and pelagic species is not always clear cut. The Atlantic cod (Gadus morhua) is a typical demersalfish, but can also...
They can be divided into demersalfish and pelagic fish. Demersalfish live on or near the sea floor, while pelagic fish live in the water column away...
is the demersal zone. Demersalfish can be divided into benthic fish, which are denser than water and rest on the bottom, and benthopelagic fish, which...
cod, haddock and flatfish. White fish are usually demersalfish which live on or near the seafloor, whereas oily fish are pelagic, living in the water...
Flounders are a group of flatfish species. They are demersalfish, found at the bottom of oceans around the world; some species will also enter estuaries...
name for the demersalfish genus Gadus, belonging to the family Gadidae. Cod is also used as part of the common name for a number of other fish species, and...
occur Pelagic fish live near the surface of the sea or a lake Demersalfish live on or near the bottom of the sea or a lake Coral reef fish are associated...
refer to bottom feeding fish, such as demersalfish, groundfish, benthic fish and benthopelagic fish. Examples of bottom feeding fish species groups are flatfish...
A flatfish is a member of the ray-finned demersalfish order Pleuronectiformes, also called the Heterosomata, sometimes classified as a suborder of Perciformes...
when threatened to scare predators. Despite its name, it is a demersalfish, not a flying fish, and uses its pelvic fins to walk along the bottom of the ocean...
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits...
fleets, but they have proved particularly severe in recent years for the demersalfish or whitefish sector (boats mainly fishing for cod, haddock and whiting)...
A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams...
(flat fish), for its popularity on Catholic holy days. Halibut are demersalfish and are highly regarded as a food fish as well as a sport fish. A 2018...
Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life or, more commonly, the site where such enterprise takes place...
organism, as in pelagic fish. Similarly, an organism living in a demersal habitat is said to be a demersal organism, as in demersalfish. Pelagic habitats are...
zooplankton as food. Example pelagic fish are capelin, herring, whiting, mackerel and redfish, There are, however, a few demersal species that are straddling,...
deepsea tripod fish, a demersalfish living on the bottom of the Atlantic Ocean, even on the abyssal plain. It is one of the deepest-dwelling fish known. This...
pelagic zone. Demersalfish – fish that live in the demersal zone. Examples are cod, flounder and snapper. Compared to pelagic fish, demersalfish contain little...
Most forage fish are pelagic fish, which means they form their schools in open water, and not on or near the bottom (demersalfish). Forage fish are short-lived...
is any form of sea life regarded as food by humans, prominently including fish and shellfish. Shellfish include various species of molluscs (e.g., bivalve...
a demersalfish native to marine or brackish waters of the Northeast Atlantic, Baltic Sea and the Mediterranean Sea. It is an important food fish. Turbot...
in fish is a health concern for people who eat them, especially for women who are or may become pregnant, nursing mothers, and young children. Fish and...
Coastal fish Coldwater fish Coral reef fish Deep sea fishDemersalfish Freshwater fish Groundfish Marine habitats Pelagic fish Tropical fish Wild fish Natural...
Global Information
