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A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages.
The scales of alligator gar are not like the scales of other fishes, which have flexible elasmoid scales; gar bodies are protected by inflexible and articulated ganoid scales that are rhomboidal-shaped, often with serrated edges, and composed of a tough inner layer of bone and hard outer layer of ganoin, which is essentially homologous to tooth ...
The mackerel scad (Decapterus macarellus), or speedo, is a species of fish of the family, Carangidae. While it can be considered gamefish, it is usually used as bait. [2] It is popular for consumption in Hawaiʻi, the Philippines and the U.A.E. In Hawaiʻi, mackerel scad are called ʻopelu. [3] In the Philippines they are called galunggong. [4]
Fish scales are dermally derived, specifically in the mesoderm. This fact distinguishes them from reptile scales paleontologically. This fact distinguishes them from reptile scales paleontologically. Genetically, the same genes involved in tooth and hair development in mammals are also involved in scale development.
The Rainbow Fish is a children's picture book drawn and written by Swiss author and illustrator, Marcus Pfister, and translated into English by J. Alison James.The book is best known for the distinctive shiny foil scales of the Rainbow Fish.
The cobia (Rachycentron canadum) (/ ˈ k oʊ b i ə /, KOH-bee-ə) is a species of marine carangiform ray-finned fish, the only extant representative of the genus Rachycentron and the family Rachycentridae. Its other common names include black kingfish, black salmon, ling, lemonfish, crabeater, prodigal son, codfish, and black bonito.
Existing fish groups featuring ganoin are bichirs and gars, but ganoin is also characteristic of several extinct taxa. [4] It is a characteristic component of ganoid scales. Ganoine is an ancient feature of ray-finned fishes, being found for example on the scales of stem group actinopteryigian Cheirolepis. [4]
The distinctive characteristic of the family is that they have scalpel-like modified scales, one or more on either side of the peduncle of the tail. [6] The spines are dangerously sharp and may seriously injure anyone who carelessly handles such a fish. The dorsal, anal, and caudal fins are large, extending for most of the length of the body ...