title: Haemolymph characteristics of a copper-tolerant decapod Orconectes virilis (Hagen) (Astacidae, Crustacea).
abstract: The mean haemolymph volume in a copper-tolerant, intermoult (C2-C4) adult (more than a year old) Orconectes virilis, as determined by [14C-carboxylic] inulin dilution method, ranged from 61.17 microliters in females (mean wet body weight = 4.34 g; mean carapace length = 4.43 cm) to 61.79 microliters in males (mean wet weight = 5.73 g; mean carapace length = 4.49 cm). The mean haemolymph volume per cent varied from 14.5 (in females) to 31.1 (in males). Haemolymph from males had an average pH of 7.35, osmotic pressure of 414.1 mmol/kg H2O, and a specific gravity of 1.0603, while that from females averaged a pH of 7.48, osmotic pressure of 433.6 mmol/kg H2O and a specific gravity of 1.0469. Mean total haemocyte counts ranged from 3,434/mm3 (1,000/mm3 halinocytes, 1,125/mm3 hemi-granulocytes and 1,309/mm3 granulocytes) in males to 4,905/mm3 (1,525/mm3 halinocytes. 1,490/mm3 hemi-granulocytes and 1,890/mm3 granulocytes) in females.
mesh_terms: D000818:Animals; D003400:Astacoidea / Q000502:physiology*; D001772:Blood Cell Count; D003300:Copper; D004361:Drug Tolerance; D005260:Female; D006458:Hemolymph / Q000166:cytology / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D008297:Male; D009997:Osmotic Pressure; D012737:Sex Factors
chemical_list: D003300:Copper