Nom du corpus

Corpus Systématique Animale

Titre du document

Oxygen and carbon dioxide transporting properties of the blood of three sublittoral species of burrowing crab

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Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Arthropodes_v2b_01195
Auteur(s)
  • A. C. Taylor 1
  • S. Morris 2
  • C. R. Bridges 2
Affiliation(s)
  • 1) Department of Zoology, University of Glasgow, G12 8QQ, Glasgow, UK
  • 2) Institut für Zoologie IV, Universität Düsseldorf, D-4000, Dusseldorf, Federal Republic of Germany
Résumé

1. A study has been made of the oxygen and carbon dioxide transporting properties of the blood of three species of crab,Goneplax rhomboides, a species which constructs semi-permanent burrows in sublittoral muds, andAtelecyclus rotundatus andLiocarcinus depurator which simply bury themselves in the substratum. Investigations were also made of thein vivo blood/gas parameters in these three species. The oxygen carrying capacity of the blood was similar in all three species (0.31–0.34 ?mol·ml?1) as were arterial and venous oxygen tensions. Arterial and venous blood pH values were not significantly different but inL. depurator pHa was 8.08 compared with 7.81 in the other two species. At pH 7.8 and 10°C the oxygen affinity of the blood ofA. rotundatus (P 50=5.6 Torr) andG. rhomboides (P 50=4.1 Torr) was higher than that ofL. depurator (P 50=24.3 Torr). Oxygen affinity was relatively temperature independent between 5–15°C inA. rotundatus and inL. depurator butG. rhomboides exhibited a normal temperature dependence (?H=?64 kJ·mole?1). The Bohr effect was much larger inL. depurator (?=?1.43) than inA. rotundatus (?=?0.92) andG. rhomboides (?=?0.59). 2. The haemocyanin of all three species exhibited a pronounced lactate effect i.e. an increase in blood lactate concentration increased the oxygen affinity of the haemocyanin, and inA. rotundatus it was also possible to demonstrate the existence of an unidentified factor in the blood which slightly increased the oxygen affinity of the haemocyanin. InA. rotundatus and inL. depurator, but not inG. rhomboides, an increase in blood lactate concentration caused a decrease in the cooperativity of the haemocyanin. 3. The blood ofA. rotundatus, G. rhomboides andL. depurator had a high capacitance for CO2 transport at physiological CO2 tensions and also exhibited a distinct Haldane effect, the magnitude of which differed between these species. The buffer value of the blood of these crabs was low (?[HCO3]/?pH=?4.93 to ?5.99 mmol·l?1·pH unit?1). The observed differences in the oxygen and carbon dioxide transporting properties of the blood of these three species of crab are discussed in relation to their mode of life.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - phytopathologie. zoologie agricole. protection des cultures et des forets
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Endocrinology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
Catégories WoS
  • 1 - science ; 2 - zoology
  • 1 - science ; 2 - physiology
Identifiant ISTEX
6B68045276C5DD8CF3E4F335C1ABE465FFFE78A2
Revue

Journal of Comparative Physiology B

Année de publication
1985
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
10
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-JR6L8WV3-G
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