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In many fish, the pectoral fins aid in walking, especially in the lobe-like fins of some anglerfish and in the mudskipper (see also walking fish) Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards; In skates and rays, the pectoral fins are used for propulsion (rajiform ...
The Iniidae have other morphology common to species adapted to freshwater riverine habitats; [5] which include highly reduced or absent dorsal fins, so they do not become entangled in vegetation from the flooded terrestrial plains; and large, wide, paddle-like pectoral fins that allow maneuverability in confined areas cramped by vegetation. [4]
The gill arches are condensed into a pouch-like bundle covered by a sheet of skin (an operculum), with a single gill-opening in front of the pectoral fins. [5] The pectoral fins are large enough to generate lift at a relaxed forward momentum, giving the chimaera the appearance of "flying" through the water. Further back on the body are also a ...
Well developed fins are used for maintaining balance, braking and changing direction. The pectoral fins act as pivots around which the fish can turn rapidly and steer itself. The paired pectoral and pelvic fins control pitching, while the unpaired dorsal and anal fins reduce yawing and rolling. The caudal fin provides raw power for propelling ...
The Amazon river dolphin (Inia geoffrensis), also known as the boto, bufeo or pink river dolphin, is a species of toothed whale endemic to South America and is classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis ( Bolivian river dolphin ) and I. g. humboldtiana ...
Young fisherman with dolphinfish from Santorini, Greece, c. 1600 BCE (Minoan civilization). The mahi-mahi (/ ˌ m ɑː h i ˈ m ɑː h i / MAH-hee-MAH-hee) [3] or common dolphinfish [2] (Coryphaena hippurus) is a surface-dwelling ray-finned fish found in off-shore temperate, tropical, and subtropical waters worldwide.
5 In the aquarium. 6 Reproduction. 7 ... There is a dark spot around its pectoral fin. Ecology ... It is also known to feed on the waste and vomit of spinner dolphins ...
caudal fin: composed of 2–4 spines and 4-14 soft rays, with dark bands at basal and subterminal positions. pelvic fin: composed of one spine and 3–5 soft rays. pectoral fin: composed of 10–12 rays. The two most caudal rays of each pectoral fin are detached from the rest of the fin, and angled in a ventral direction. The fish employ these ...