Nitrogenous excretion in the terrestrial carnivorous crab Geograpsus grayi: site and mechanism of excretion

Nitrogenous excretion in the terrestrial carnivorous crab Geograpsus grayi: site and mechanism of excretion

The rate and mechanism of nitrogen excretion were examined in Geograpsus grayi. This species excretes waste nitrogen as gaseous NH3 in periodic bursts. The mean concentration of total ammonia ([NH3]+[NH4+]) in the primary urine during bursts of excretion (1.72 mmol l-1) was similar to that of haemol...

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Veröffentlicht in:Journal of experimental biology 1994-05, Vol.190 (1), p.179-193
Hauptverfasser: VARLEY, D. G, GREENAWAY, P
Format: Artikel
Sprache:eng
Schlagworte:
Anatomy & physiology
Biochemistry. Physiology. Immunology
Biological and medical sciences
Biology
Crustacea
Decapoda
Fundamental and applied biological sciences. Psychology
Geograpsus grayi
Invertebrates
Marine
Nitrogen
Physiology. Development
Shellfish
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Zusammenfassung:The rate and mechanism of nitrogen excretion were examined in Geograpsus grayi. This species excretes waste nitrogen as gaseous NH3 in periodic bursts. The mean concentration of total ammonia ([NH3]+[NH4+]) in the primary urine during bursts of excretion (1.72 mmol l-1) was similar to that of haemolymph (2.07 mmol l-1) but was significantly lower (P
ISSN:0022-0949
1477-9145
DOI:10.1242/jeb.190.1.179