Fractional rate of change of swim-bladder volume is reliably related to absolute depth during vertical displacements in teleost fish.

Journal article

Fish must orient in three dimensions as they navigate through space, but it is unknown whether they are assisted by a sense of depth. In principle, depth can be estimated directly from hydrostatic pressure, but although teleost fish are exquisitely sensitive to changes in pressure, they appear unable to measure absolute pressure. Teleosts sense changes in pressure via changes in the volume of their gas-filled swim-bladder, but because the amount of gas it contains is varied to regulate buoyan...

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Authors: Taylor, G; Holbrook, R; de Perera, T

• Publication status: Published
• Journal: Journal of the Royal Society, Interface / the Royal Society
• Volume: 7
• Issue: 50
• Pages: 1379-1382
• Publication date: 2010-09-01
• DOI: 10.1098/rsif.2009.0522
• EISSN: 1742-5662
• ISSN: 1742-5689
• Language: English
• Keywords: Space Perception; Hydrostatic Pressure; Animals; Organ Size; Fishes; Air Sacs