Vertical responses of Atlantic croaker to gas supersaturation and temperature change

Journal Article · Sat Nov 01 00:00:00 EST 1980 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1980)109<737:VROACT>2.0.CO;2· OSTI ID:6850438

Chamberlain, G W; Neill, W H; Romanowsky, P A; Strawn, K

Vertical responses of juvenile Atlantic croakers (Micropogon undulatus) to acute supersaturation of nitrogen and oxygen and to changing temperature were observed in a 2.5-m-tall test cylinder supplied with flowing estuarine water. Supersaturation of nitrogen caused an initial upward movement of fish, although a compensatory downward response seemed to occur after 2 to 4 hours of exposure. Supersaturation of oxygen resulted in an almost immediate downward movement of fish. Abrupt upward displacement of fish followed water-temperature changes, especially increases. Similarities between the behavior of croakers in these experiments and the behavior of other physoclists after swim-bladder volume manipulation suggested that gas supersaturation caused the swim bladders of our fish to inflate, resulting first in upward drift and then in downward swimming to restore neutral buoyancy. A nonlinear response model incorporating this hypothesis accounted for 62% of the variation (over all experiments) in mean vertical displacement of the croakers. Supersaturation-induced inflation of the swim bladder may provide physoclistous fishes a direct mechanism for avoiding gas bubble disease by stimulating the fish to descend to a depth at which no gas has a relative saturation value greater than 100%.

• Research Organization: Texas A and M Univ., College Station
• OSTI ID: 6850438
• Journal Information: Trans. Am. Fish. Soc.; (United States), Vol. 109:6
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
59 BASIC BIOLOGICAL SCIENCES
FISHES
BEHAVIOR
SUPERSATURATION
BIOLOGICAL EFFECTS
AIR
AQUATIC ECOSYSTEMS
DEPTH
GAS BUBBLE DISEASE
MATHEMATICAL MODELS
NITROGEN
OXYGEN
QUANTITY RATIO
SEAWATER
SENSITIVITY
SOLUBILITY
TEMPERATURE EFFECTS
TIME DEPENDENCE
ANIMALS
AQUATIC ORGANISMS
DIMENSIONS
DISEASES
ECOSYSTEMS
ELEMENTS
FLUIDS
GASES
HYDROGEN COMPOUNDS
NONMETALS
OXYGEN COMPOUNDS
SATURATION
VASCULAR DISEASES
VERTEBRATES
WATER
560400* - Other Environmental Pollutant Effects
550100 - Behavioral Biology