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Cleaning symbiosis is a relationship between a pair of animals of different species, involving the removal and subsequent ingestion of ectoparasites, diseased and injured tissue, and unwanted food items from the surface of the host organism (the client) by the cleaning organism (the cleaner). [5]
SS Selma was an oil tanker built in 1919 by F.F. Ley and Company, Mobile, Alabama. President Woodrow Wilson approved the construction of 24 concrete vessels of which only 12 were actually completed.
The hybrid fish are aggressive and have larger mouths than their Bluegill parent. These fish also grow faster than other small mouth fish due to its bigger mouth. Greengills or hybrid bluegills are the most efficient in growth and can reach approximately 2 lbs or 0.91 kg in one year.
They live in a cleaning symbiosis with larger, often predatory, fish, grooming them and benefiting by consuming what they remove. "Client" fish congregate at wrasse " cleaning stations " and wait for the cleaner fish to remove gnathiid parasites, the cleaners even swimming into their open mouths and gill cavities to do so.
The "fish pond toilet" depends on the same principle, of livestock (often carp) eating human excreta directly. "Flying toilet" This section is an excerpt from Flying toilet .
The silver perch is a large grunter with a small head, small eyes, a small mouth at the end of a pointed 'beak-like' snout. [3] [4] [5] [9] The species is streamlined and laterally compressed, with a spiny dorsal fin of medium height, angular soft dorsal and anal fins and a forked tail.
A macrophyte is a plant that grows in or near water and is either emergent, submergent, or floating. In lakes and rivers, macrophytes provide cover for fish, substrate for aquatic invertebrates, produce oxygen, and act as food for some fish and wildlife. [1] Macrophytes are primary producers and are the basis of the food web for many organisms. [2]
The common ling is the longest and one of the largest of the cod-like fish, the Gadiformes, which can reach lengths of 200 cm and weights of 30 kg.It is long and slender [3] with a small head and small eyes and a large mouth, which has large teeth, [4] with the upper jaw projecting beyond the lower jaw, which bears an obvious sensory barbel.
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