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Porpita porpita, or the blue button, is a marine organism consisting of a colony of hydroids [2] found in the warmer, tropical and sub-tropical waters of the Pacific, [3] Atlantic, and Indian oceans, as well as the Mediterranean Sea and eastern Arabian Sea. [4] It was first identified by Carl Linnaeus in 1758, under the basionym Medusa porpita.
Atlantic blue tangs act as cleaners by grazing algae as well as eating molted skin and parasites off of the client's flesh once the client comes to the cleaning station. The most common client in these interactions is the green turtle , in which the blue tang inspects the green turtle by nipping its head, limbs, tail, and carapace .
Close-up of fish melanophores. Fish coloration is produced through specialized cells called chromatophores. The dermal chromatophore is a basic color unit in amphibians, reptiles, and fish which has three cell layers: "the xanthophore (contains carotenoid and pteridine pigments), the iridophore (reflects color structurally), and the melanophore (contains melanin)". [5]
When considering a tang for an aquarium it is important to consider the size to which these fish can grow. Larger species such as the popular Pacific blue tang surgeonfish (of Finding Nemo fame), Naso or lipstick tang, lined surgeonfish , Sohal surgeonfish and Atlantic blue tang surgeonfish can grow to 40 cm (16 in) and require swimming room ...
Commercial fish. Blue-barred parrotfish (Cateau) Body of female is orange-yellow with bluish vertical patterns on the side. Body of male is green on dorsal side; pale-blue stripes are present on the ventral side and there is a pink salmon shade on each scale. The fish is equipped with a parrot-like beaked shaped mouth to scrape algae from corals.
Choerodon cephalotes (Castelnau, 1875) (purple tuskfish) Choerodon cyanodus (J. Richardson, 1843) (blue tuskfish) Choerodon fasciatus (Günther, 1867) (harlequin tuskfish) Choerodon frenatus J. D. Ogilby, 1910 (bridled tuskfish) Choerodon gomoni G. R. Allen & J. E. Randall, 2002 (Gomon's tuskfish) [4] Choerodon graphicus (de Vis, 1885) (graphic ...
The dorsal fin, which is exceptionally tall in males, has a striking orange-and blue design as well. The eyes are usually red with black pupils. Different varieties sport different markings and colors. The green mandarin is the fish that has been described. The red mandarin is the same species, but its pelvic fins and what would be orange is red.
The blue tilapia (Oreochromis aureus) is a species of tilapia, a fish in the family Cichlidae. [2] Native to Northern and Western Africa, and the Middle East, through introductions it is now also established elsewhere, including parts of the United States, where it has been declared an invasive species and has caused significant environmental damage. [3]