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A school of fish has many eyes that can scan for food or threats Pacific sardine school reacting to attention from yellowfin tuna These sometimes immense gatherings fuel the ocean food web . Most forage fish are pelagic fish , which means they form their schools in open water, and not on or near the bottom ( demersal fish ).
The term rough fish is used by U.S. state agencies and anglers to describe undesirable predator fish. In North America, anglers fish for salmon, trout, bass, pike, catfish, walleye and muskellunge. The smallest fish are called panfish, because they can fit in a standard cooking pan. Some examples are crappies, rock bass, perch, bluegill and ...
Radakov estimated herring schools in the North Atlantic can occupy up to 4.8 cubic kilometres with fish densities between 0.5 and 1.0 fish/cubic metre, equivalent to several million fish in one school. [7] Herring are amongst the most spectacular schoolers ("obligate schoolers" under older terminology).
The state of Indiana is home to 208 species [1] of fishes that inhabit its rivers, lakes, and streams that make up five watersheds.Indiana is the state with the most fish species of any state [2] north of the Ohio River and includes Great Lakes species.
Fish migrations involve movements of schools of fish on a scale and duration larger than those arising during normal daily activities. [1] Some particular types of migration are anadromous , in which adult fish live in the sea and migrate into fresh water to spawn ; and catadromous , in which adult fish live in fresh water and migrate into salt ...
American shad: Alosa sapidissima [10] Florida: Florida largemouth bass (fresh water) Micropterus floridanus: 2007 [11] Atlantic sailfish (salt water) Istiophorus albicans: 2007 [12] Georgia: Largemouth bass: Micropterus salmoides: 1970 [13] Southern Appalachian brook trout (cold water game fish) Salvelinus fontinalis: 2006 [14] [15] Red drum ...
The northern puffer, Sphoeroides maculatus, is a species in the family Tetraodontidae, or pufferfishes, found along the Atlantic coast of North America. [2] Unlike many other pufferfish species, the flesh of the northern puffer is not poisonous, although its viscera can contain poison, [1] [2] and high concentrations of toxins have been observed in the skin of Floridian populations.
All rabbitfish are diurnal; some live in schools, while others live more solitary lives among the corals. Rabbitfish sleep in crevices in the reef matrix at night. While sleeping, the rabbitfish Siganus canaliculatus was observed being cleaned by the cleaner shrimp Urocaridella antonbruunii. [13]