Controller

Controller

A device which measures some parameter of an aquarium, and then switches on and off another device to affect the aquarium. Typical controllers include redox, and pH.

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Industry/Domain: Fishing
Category: Fish farming
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control

Automotive; Automobile

(1) A device or mechanism for adjusting a component. See cruise control. (2) The ability of the driver to make a vehicle perform as required. (3) To regulate.

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A policy or procedure that is part of internal control.

controller

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An officer who supervises financial affairs of an entity. In internal control the controller is often the person with record keeping (general ledger) responsibilities, as ...

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Medical;

Another device for controlling.

bycatch

Fishing; Fish farming

Bycatch (or by-catch) is the portion of a fishing catch caught unintentionally in a fishery, in addition to the targeted catch, and discarded as unwanted or commercially unusable.

fishery

Fishing; Fish farming

The industry or occupation devoted to the catching, processing, or selling of fish, shellfish, or other aquatic animals.

biological filtration

Fishing; Fish farming

These filters make use of bacteria to break down wastes in the water into substances which are less toxic to the inhabitants, in a process known as the nitrogen cycle. Examples ...

biological reference points

Fishing; Fish farming

Fishing mortality rates that may provide acceptable protection against growth overfishing and/or recruitment overfishing for a particular stock. They are usually calculated from ...

biomass

Fishing; Fish farming

Measure of the quantity, usually by weight in pounds or metric tons (2,205 pounds = 1 metric ton), of a stock at a given time.

brackish

Fishing; Fish farming

Water that part-way between freshwater and marine. A number of species prefer partly-salty water.

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