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PCBs are organochlorine compounds with the formula C 12 H 10−x Cl x; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment. [2] Because of their longevity, PCBs are still widely in use, even though their manufacture has declined ...
A cleaning station is a location where aquatic life congregate to be cleaned by smaller beings. Such stations exist in both freshwater and marine environments, and are used by animals including fish, sea turtles and hippos.
The best known cleaning symbioses are among marine fishes, where several species of small fish, notably of wrasse, are specialised in colour, pattern and behaviour as cleaners, providing a cleaning and ectoparasite removal service to larger, often predatory fish.
The US Commerce Department said on Thursday it plans to grant $75 million to Absolics for constructing a 120,000-square-foot facility in Georgia that will supply advanced materials to the...
An aquarium ( pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles, such as turtles, and aquatic plants.
A commercial aquaponics system. An electric pump moves nutrient-rich water from the fish tank through a solids filter to remove particles the plants above cannot absorb. The water then provides nutrients for the plants and is cleansed before returning to the fish tank below.
There are two types of cleaner fish, obligate full time cleaners and facultative part time cleaners where different strategies occur based on resources and local abundance of fish. Cleaning behaviour takes place in pelagic waters as well as designated locations called cleaner stations.
Los Angeles is the state's most populous city and the nation's second-most, after New York. California's capital, Sacramento, is located in the Central Valley . Prior to European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America.
A fish tape (also called a draw wire, draw tape, or an electrician ' s snake) is a tool used by electricians to route new wiring through walls and electrical conduit. Made of a narrow band of spring steel, by careful manipulation, the tape can be guided through confined spaces such as wall cavities or conduits in many countries. The goal is to ...
The crimson cleaner fish (Suezichthys aylingi), or butcher's dick in Australia, is a species of wrasse native to the southwestern Pacific Ocean around Australia and New Zealand. This species inhabits patches of sand on reefs at depths of from 6 to 100 metres (20 to 328 ft). It is a cleaner fish.