Extraintestinal calcium uptake in the killifish, Fundulus heteroclitus

Journal Article · Thu Sep 01 00:00:00 EDT 1983 · J. Exp. Zool.; (United States)

DOI:https://doi.org/10.1002/jez.1402270302· OSTI ID:6748077

Mayer-Gostan, N; Bornancin, M; DeRenzis, G; Naon, R; Yee, J A; Shew, R L; Pang, P K

Extraintestinal calcium influxes were measured in the killifish, Fundulus heteroclitus, in solutions with different calcium concentrations, from distilled water level (near 0) to seawater level (approximately 12 mM). The extraintestinal influx is modified by the concentration of calcium in the medium during the adaptive period. In freshwater-adapted fish, calcium depletion resulted in an increase in calcium uptake. Such an adaptation was not observed in calcium-depleted fish in artificial calcium-deficient seawater. Calcium depletion in either medium seems to increase the calcium permeability. No correlation was found between Ca-ATPase activity in the gill tissue and calcium uptake.

• Research Organization: Groupe de Biologie Marine du C.E.A., Station Zoologique, Villefranche-sur-Mer, France
• OSTI ID: 6748077
• Journal Information: J. Exp. Zool.; (United States), Vol. 227:3
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CALCIUM
UPTAKE
BIOCHEMICAL REACTION KINETICS
FISHES
FRESH WATER
METABOLISM
SEAWATER
ALKALINE EARTH METALS
ANIMALS
AQUATIC ORGANISMS
ELEMENTS
HYDROGEN COMPOUNDS
KINETICS
METALS
OXYGEN COMPOUNDS
REACTION KINETICS
VERTEBRATES
WATER
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)