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The skin of a teleost is largely impermeable to water, and the main interface between the fish's body and its surroundings is the gills. In freshwater, teleost fish gain water across their gills by osmosis, while in seawater they lose it. Similarly, salts diffuse outwards across the gills in freshwater and inwards in salt water.
Generally, the skin also contains sweat glands and sebaceous glands that are both unique to mammals, but additional types of skin glands are found in fish. Found in the epidermis, fish typically have numerous individual mucus-secreting skin cells called goblet cells that produce a slimy substance to the surface of the skin. This aids in ...
Plexaura homomalla, commonly known as the black sea rod or Caribbean sea whip, is a species of gorgonian-type octocoral in the family Plexauridae.It is widely distributed in the Caribbean from the Florida Keys to the northern coast of Venezuela.
Capture (blue) and aquaculture (green) production of Turbot (Scophthalmus maximus) in thousand tonnes from 1950 to 2022, as reported by the FAO [2]The turbot (English: / ˈ t ɜːr b ə t / TUR-bət, French: .; [3] Scophthalmus maximus) is a relatively large species of flatfish in the family Scophthalmidae.
The current rod-and-reel angling record for a Wallago attu caught in the wild and authenticated by the International Game Fish Association is a specimen of 18 kg (40 lb) from the Vajiralongkorn dam reservoir in Thailand, while some specialized recreational catch-and-release breeding ponds in the region claim to harbour specimens in the 20–30 ...
The major differences were that holocephalians have shagreen on their skin, while ptyctodontids do not; the armoured plates and scales of holocephalians are made of dentine, while those of ptyctodontids are made of bone; the craniums of holocephalians are similar to sharks, while those of ptyctodontids are similar to those of other placoderms ...
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.
Doctor fish nibbling on the diseased skin of patients. Doctor fish (nibble fish) live and breed in the outdoor pools of some Turkish spas, where they feed on the skin of patients with psoriasis. The fish are like cleaner fish in that they only consume the affected and dead areas of the skin, leaving the healthy skin to recover.