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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]
A urokotori (うろこ取り, scale remover) is a utensil used in Japanese cuisine to remove the scales from the skin of fish before cooking. [ 1 ] [ 2 ] Although it is possible to remove the scales with a knife, this is more difficult and there is a higher risk of cutting the skin of the fish, especially with small fishes; knife-scaling also ...
Sphaerotilus natans; Submerged S. natans colonies with floating insect in the lower right for scale. Beige color shown is typical of aerated sewage treatment plants, but color may vary through grey toward black downstream of septic sewage or into brighter orange from precipitated red iron oxide.
Fish are spotted using a flashlight or headlamp and scooped out of the water using a dip net made of nylon or metal mesh. The smelt are cleaned by removing the head and the entrails. Fins, scales, and bones of all but the largest of smelts are cooked without removal. [6]
Lepidophagy, or scale-eating, has been reported in a range of fish, including: Chanda nama (family Ambassidae), [4] Plagiotremus (family Blenniidae), [5] Terapon jarbua (family Terapontidae), [1] a few Ariopsis and Neoarius species (family Ariidae), [6] Pachypterus khavalchor (family Pachypteridae), Macrorhamphoides uradoi (family Triacanthodidae), several pencil catfish (family ...
The fish was taken to a nearby pond, where the owner confirmed it was an alligator gar rather than an arapaima, as the men had initially thought. [ 37 ] Anecdotal reports have been made of alligator gar captured in various parts of India , but are believed to be the result of incidental releases by aquarium hobbyists and the like.
Aristotle (ca. 340 B.C.) may have been the first scientist to speculate on the use of hard parts of fishes to determine age, stating in Historica Animalium that “the age of a scaly fish may be told by the size and hardness of its scales.” [4] However, it was not until the development of the microscope that more detailed studies were performed on the structure of scales. [5]
The sponge Hymeniacidon perlevis has exhibited an excellent ability to remove total organic carbon (TOC) from seawater under integrated aquaculture conditions, [19] and could be a potentially useful bioremediation tool for aquaculture systems in regions where water pollution is high. Furthermore, the organic enrichment originating from fish ...