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The body is often fusiform, a streamlined body plan often found in fast-moving fish. Some species may be filiform ( eel -shaped) or vermiform ( worm -shaped). Fish are often either compressed ( laterally thin and tall) or depressed ( dorso-ventrally flattened).
The larger species are popular food fish. [1] Hemiodontids have a streamlined body shape; many are fast-swimming, and are able to leap out of the water to escape predators. The adults of all species except Micromischodus sugillatus have no teeth on their lower jaws.
Common snowtrout has great commercial and cultural values to the local communities. They are much sought after as a consumption fish. [2] However, their population is threatened by a number of factors including overfishing, pollution, the damming of rivers and the introduction of exotic fish, particularly salmonids and the population is ...
The streamlined body of the fish decreases the amount of friction from the water. A typical characteristic of many animals that utilize undulatory locomotion is that they have segmented muscles, or blocks of myomeres , running from their head to tails which are separated by connective tissue called myosepta.
Its body is streamlined and sleek, with a uniformly dark charcoal gray dorsal and pale to pinkish underside. A diagnostic feature often used by field scientists to distinguish Rice's whales from whales other than the Bryde's whale is the three prominent ridges that line the top of its head.
Fish locomotion is the various types of animal locomotion used by fish, principally by swimming. This is achieved in different groups of fish by a variety of mechanisms of propulsion, most often by wave-like lateral flexions of the fish's body and tail in the water, and in various specialised fish by motions of the fins. The major forms of ...
The Comanche Springs pupfish stands out amongst cogeners due to the striking speckled color pattern of the males, as well as a more streamlined body shape and lack of vertical bars. [6] The back is relatively flat. [7] The species reaches a maximum length of around 50 mm (2.0 in). [8]
The body of R. orodontus was similar to that of other caseodontids. It possessed a slender, streamlined profile, a strongly keeled crescent-shaped caudal fin, and proportionally very small dorsal and pectoral fins. Unlike modern sharks and rays, there is no indication Romerodus possessed pelvic fins or claspers. Its teeth were smoother and less ...