The metabolism rate and energy balance of subterranean amphipod Crangonyx chlebnikovi Borutzky, 1928 (Crangonyctidae)

The metabolism rate and energy balance of subterranean amphipod Crangonyx chlebnikovi Borutzky, 1928 are investigated. The data on experiments show that the oxygen consumption rate and temp of destruction of these animals don't differ from those of the other crustaceans. The energy balance of crangonyx is characterized by rather low production/destruction ratio. It speaks about the lack of feeding. So, the rate of growth and individual productivity of crangonyx are much more less that those of the other (epigean) crustaceans. The long-time evolution of crangonyx in the subterranean habitats doesn't result in specific physiological adaptations.