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Fish anatomy. Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. [1] In practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or ...
Taxonomy of fish. Fishes are a paraphyletic group and for this reason, the class Pisces seen in older reference works is no longer used in formal taxonomy. Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as ...
the two stripe damsel is a very hardy fish. This fish is perfect for the beginner marine aquarist, as it can tolerate substandard water quality. This fish is highly aggressive, and requires many hiding places. 10 cm (3.9 in) Yellow damsel: Amblyglyphidodon aureus: Yes: 13 cm (5.1 in) Yellow threespot Dascyllus: Dascyllus auripinnis: Yes [49]: 205
Comparison of the depths which different colours of light penetrate clear open ocean waters and the murkier coastal waters. Water absorbs the warmer long wavelengths colours, like reds and oranges, and scatters the cooler short wavelength colours. [4] Fish and other aquatic animals live in a different light environment than terrestrial species do.
For most men, though, mercury consumption isn’t an issue. “Most healthy adults would need to consume a lot of higher-mercury fish over long periods of time to develop any symptoms of mercury ...
The seven native fish species regularly seen in fresh water are the flagtail Kuhlia xenura, the mullet Mugil cephalus, the gobies Awaous stamineus, Lentipes concolor, Sicyopterus stimpsoni and Stenogobius hawaiiensis, and the sleeper goby Eleotris sandwicensis. [ 6][ 7] Three of the gobies, A. stamineus, L. concolor and S. stimpsoni, are famous ...
The lateral line, also called the lateral line organ ( LLO ), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these ...
The largest fish of the now-extinct class Placodermi was the giant predatory Dunkleosteus. The largest and most well known species was D. terrelli, which grew almost 9 m (29.5 ft) in length [ 24] and 4 t (4.4 short tons) [ 25] in weight. Its filter feeding relative, Titanichthys, may have rivaled it in size. [ 26]