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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 Speech! allophone-based speech synthesizer software for the BBC Micro was tweaked to pronounce ghoti as fish. [13] Examination of the code reveals the string GHOTI used to identify the special case. In the Yu-Gi-Oh! Trading Card Game, there is a series of fish-type cards called "Ghoti". [14]
A school of bluefin trevally working a school of anchovies which may compact into a spherical bait ball if they are sufficiently threatened. A bait ball, or baitball, occurs when small fish swarm in a tightly packed spherical formation about a common centre. [1]
Anadromous – fish that live their adult lives in the ocean but migrate up fresh water rivers to spawn. Examples are Pacific salmon. Fish that migrate in the opposite direction are called catadromous. Anoxic sea water – sea water depleted of oxygen. See hypoxia. Anoxic sediments – sediments depleted of oxygen.
The English Pronouncing Dictionary (EPD) was created by the British phonetician Daniel Jones and was first published in 1917. [1] It originally comprised over 50,000 headwords listed in their spelling form, each of which was given one or more pronunciations transcribed using a set of phonemic symbols based on a standard accent.
For example, a large school of fish can cause nearby sharks, such as the lemon shark, to enter into a feeding frenzy. [1] This can cause the sharks to go wild, biting anything that moves, including each other or anything else within biting range. Another functional explanation for feeding frenzy is competition amongst predators. [2]
The giant trevally is a solitary fish once it reaches sexual maturity, [19] only schooling for the purposes of reproduction and more rarely for feeding. [21] Juveniles and subadults commonly school, both in marine and estuarine environments.
Artist's conception of tuna trolling operation, using outriggers to tow multiple trolling lines and give the appearance of schooling fish. Trolling is a method of fishing where one or more fishing lines, baited with lures or bait fish, are drawn through the water at a consistent, low speed.