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Fisch, Rhineland-Palatinate, a municipality in Trier-Saarburg, Germany; Fisch (surname), a German surname; Fisch, botanical identifier for Friedrich Ernst Ludwig von Fischer; Fisch, a popular Roblox fishing simulator
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ in bony fish (but not cartilaginous fish [1]) that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, which expends more energy. [2]
The mesopelagic zone is the disphotic zone, meaning light there is minimal but still measurable. The oxygen minimum layer exists somewhere between a depth of 700 metres (2,297 ft) and 1,000 metres (3,281 ft) deep depending on the place in the ocean. This area is also where nutrients are most abundant.
Stomiidae is a family of deep-sea ray-finned fish, including the barbeled dragonfishes.They are quite small, usually around 15 cm, up to 26 cm. These fish are apex predators and have enormous jaws filled with fang-like teeth. [1]
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At depths of 4,000–6,000 m (13,000–20,000 ft), [2] this zone remains in perpetual darkness. [ 3 ] [ 4 ] It covers 83% of the total area of the ocean and 60% of Earth's surface. [ 5 ] The abyssal zone has temperatures around 2–3 °C (36–37 °F) through the large majority of its mass. [ 3 ]
To pursue such varied pelagic prey, mahi-mahi are fast swimmers, swimming as fast as 50 knots (92.6 km/h, 57.5 mph). [citation needed] Males and females are sexually mature in their first year, usually by the age of 4–5 months. Spawning can occur at body lengths of 20 cm (7.9 in). Females may spawn two to three times per year, and produce ...