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Abstract:

Haemolymphatic P(O2), P(CO2), and pH, and ionic concentrations of haemolymph and branchial chamber water were measured in submerged and emersed crabs. Hypercapnia and respiratory acidosis were recorded after 15 min of air exposure, then P(CO2) remained constant and pH was compensated. Sodium concentration increased in haemolymph and decreased in branchial water. The difference between haemolymph Naa+ and Cl- increased dramatically. Acid-base balance is restored by two mechanisms: a) increase of the P(CO2) gradient across the gills and consequently the rate of CO2 excretion; b) the increase in the strong ion difference, caused by branchial sodium uptake, compensates the hypercapnic acidosis.

Registro:

Documento: Artículo
Título:Acid-base balance and ionic regulation during emersion in the estuarine intertidal crab Chasmagnathus granulata dana (Decapoda Grapsidae)
Autor:Luquet, C.M.; Ansaldo, M.
Filiación:Lab. Histología Animal, Departamento de Biología, F. C. E. y N., 1428 Buenos Aires, Argentina
Instituto Antartico Argentino, Cerrito 1248, 1010 Buenos Aires, Argentina
Lab. Histologia Animal, F.C.E. y N., Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:acid-base balance; air exposure; Chasmagnathus granulata; crabs; ion regulation; terrestrial adaptation; chloride; sodium; acid base balance; animal experiment; article; controlled study; crab; electrolyte balance; hemolymph; hypercapnia; male; nonhuman; priority journal; respiratory acidosis; Chasmagnathus granulata
Año:1997
Volumen:117
Número:3
Página de inicio:407
Página de fin:410
DOI: http://dx.doi.org/10.1016/S0300-9629(96)00282-4
Título revista:Comparative Biochemistry and Physiology - A Physiology
Título revista abreviado:COMP. BIOCHEM. PHYSIOL. A PHYSIOL.
ISSN:03009629
CODEN:CBPAB
CAS:chloride, 16887-00-6; sodium, 7440-23-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03009629_v117_n3_p407_Luquet

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Citas:

---------- APA ----------
Luquet, C.M. & Ansaldo, M. (1997) . Acid-base balance and ionic regulation during emersion in the estuarine intertidal crab Chasmagnathus granulata dana (Decapoda Grapsidae). Comparative Biochemistry and Physiology - A Physiology, 117(3), 407-410.
http://dx.doi.org/10.1016/S0300-9629(96)00282-4
---------- CHICAGO ----------
Luquet, C.M., Ansaldo, M. "Acid-base balance and ionic regulation during emersion in the estuarine intertidal crab Chasmagnathus granulata dana (Decapoda Grapsidae)" . Comparative Biochemistry and Physiology - A Physiology 117, no. 3 (1997) : 407-410.
http://dx.doi.org/10.1016/S0300-9629(96)00282-4
---------- MLA ----------
Luquet, C.M., Ansaldo, M. "Acid-base balance and ionic regulation during emersion in the estuarine intertidal crab Chasmagnathus granulata dana (Decapoda Grapsidae)" . Comparative Biochemistry and Physiology - A Physiology, vol. 117, no. 3, 1997, pp. 407-410.
http://dx.doi.org/10.1016/S0300-9629(96)00282-4
---------- VANCOUVER ----------
Luquet, C.M., Ansaldo, M. Acid-base balance and ionic regulation during emersion in the estuarine intertidal crab Chasmagnathus granulata dana (Decapoda Grapsidae). COMP. BIOCHEM. PHYSIOL. A PHYSIOL. 1997;117(3):407-410.
http://dx.doi.org/10.1016/S0300-9629(96)00282-4