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Aquatic respiration is the process whereby an aquatic organism exchanges respiratory ... Fish exchange gases by pulling oxygen-rich water through their mouths and ...
Cutaneous respiration is more important in species that breathe air, such as mudskippers and reedfish, and in such species can account for nearly half the total respiration. [15] Fish from multiple groups can live out of the water for extended time periods. Air breathing fish can be divided into obligate air breathers and facultative air
A fish's hypoxia tolerance can be represented in different ways. A commonly used representation is the critical O 2 tension (P crit), which is the lowest water O 2 tension (P O 2) at which a fish can maintain a stable O 2 consumption rate (M O 2). [2] A fish with a lower P crit is therefore thought to be more hypoxia-tolerant than a fish with a ...
Aquatic respiration – Process whereby an aquatic animal obtains oxygen from water; Artificial gills (human) – Hypothetical devices to extract oxygen from water; Book lung – Type of lung commonly found in arachnids; Fish gill – Organ that allows fish to breathe underwater
In both aquatic and terrestrial respiration, the exact mechanisms by which neurons can generate this involuntary rhythm are still not completely understood (see Involuntary control of respiration). Another important feature of the respiratory rhythm is that it is modulated to adapt to the oxygen consumption of the body.
The major means of respiration in teleosts, as in most other fish, is the transfer of gases over the surface of the gills as water is drawn in through the mouth and pumped out through the gills. Apart from the swim bladder , which contains a small amount of air, the body does not have oxygen reserves, and respiration needs to be continuous over ...
They have the lowest aquatic respiration of all extant lungfish species, [25] and their gills are greatly reduced and essentially non-functional in the adults. [26] Marbled lungfish. The marbled lungfish, Protopterus aethiopicus, is found in Africa. The marbled lungfish is smooth, elongated, and cylindrical with deeply embedded scales. The tail ...
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]