Metabolic rate in relation to body size and environmental oxygen concentration in two species of xanthid crabs

THE INFLUENCE OF CONSTANT AND CYCLIC ACCLIMATION TEMPERATURES ON THE METABOLIC RATES OFPANOPEUS HERBSTIIANDUCA PUGILATOR

“…Neither size nor oxygen concentration factors should have influenced our findings since the crabs were of approximately the same size (0.5-2.0 grams dry weight), and the crabs were partially exposed during the metabolic determinations in the Gilson respirometer. The oxygen consumption values reported byLeffler (1973) were of the same order of magnitude as those determined in our study, but exact conversion from Leffler's to our work is impossible since he used a lower salinity (22 ( / (C } than we (35/ ). RecentlyDimock and Groves (1975) have shown that the oxygen consumption of Panopeus herbstii is influenced by temperature and salinity combinations.…”

“…The oxygen consumption of Panopeus hcrbstii with response to size and oxygen concentration has been investigated by Leffler (1973). This study utilized constant conditions, but a similar measurement technique.…”

THE INFLUENCE OF CONSTANT AND CYCLIC ACCLIMATION TEMPERATURES ON THE METABOLIC RATES OFPANOPEUS HERBSTIIANDUCA PUGILATOR

“…Neither size nor oxygen concentration factors should have influenced our findings since the crabs were of approximately the same size (0.5-2.0 grams dry weight), and the crabs were partially exposed during the metabolic determinations in the Gilson respirometer. The oxygen consumption values reported byLeffler (1973) were of the same order of magnitude as those determined in our study, but exact conversion from Leffler's to our work is impossible since he used a lower salinity (22 ( / (C } than we (35/ ). RecentlyDimock and Groves (1975) have shown that the oxygen consumption of Panopeus herbstii is influenced by temperature and salinity combinations.…”

“…The oxygen consumption of Panopeus hcrbstii with response to size and oxygen concentration has been investigated by Leffler (1973). This study utilized constant conditions, but a similar measurement technique.…”

JuvenileLymnaeaventilate,learn and remember differently than do adultLymnaea

“…Thus both juvenile and adult Lymnaea when challenged with hypoxic conditions must significantly increase ventilatory behaviour in order to preserve respiratory homeostasis. Studies in land snails (Herreid, 1977), air-breathing fish (Munshi and Dube, 1973), and Xanthid crabs (Leffler, 1973) have shown that metabolic rates, measured by oxygen consumption, are higher in smaller animals. Therefore, one would expect small (juvenile) snails to have higher metabolic requirements compared with larger (adult) snails.…”

Ionic and osmotic regulation, metabolic response to salinity, and physiological response to pesticides of juvenile Callinectes Sapidus Rathbun

“…observed in the burrowing Xanthid crabs, Menippe mevcenaria and Panopeus herbstii (Leffler, 1973), that naturally encounter low 0~concentrations.…”

THE INFLUENCE OF CONSTANT AND CYCLIC ACCLIMATION TEMPERATURES ON THE METABOLIC RATES OFPANOPEUS HERBSTIIANDUCA PUGILATOR

“…Neither size nor oxygen concentration factors should have influenced our findings since the crabs were of approximately the same size (0.5-2.0 grams dry weight), and the crabs were partially exposed during the metabolic determinations in the Gilson respirometer. The oxygen consumption values reported byLeffler (1973) were of the same order of magnitude as those determined in our study, but exact conversion from Leffler's to our work is impossible since he used a lower salinity (22 ( / (C } than we (35/ ). RecentlyDimock and Groves (1975) have shown that the oxygen consumption of Panopeus herbstii is influenced by temperature and salinity combinations.…”

“…The oxygen consumption of Panopeus hcrbstii with response to size and oxygen concentration has been investigated by Leffler (1973). This study utilized constant conditions, but a similar measurement technique.…”

JuvenileLymnaeaventilate,learn and remember differently than do adultLymnaea

“…Thus both juvenile and adult Lymnaea when challenged with hypoxic conditions must significantly increase ventilatory behaviour in order to preserve respiratory homeostasis. Studies in land snails (Herreid, 1977), air-breathing fish (Munshi and Dube, 1973), and Xanthid crabs (Leffler, 1973) have shown that metabolic rates, measured by oxygen consumption, are higher in smaller animals. Therefore, one would expect small (juvenile) snails to have higher metabolic requirements compared with larger (adult) snails.…”

Ionic and osmotic regulation, metabolic response to salinity, and physiological response to pesticides of juvenile Callinectes Sapidus Rathbun

“…observed in the burrowing Xanthid crabs, Menippe mevcenaria and Panopeus herbstii (Leffler, 1973), that naturally encounter low 0~concentrations.…”

THE INFLUENCE OF CONSTANT AND CYCLIC ACCLIMATION TEMPERATURES ON THE METABOLIC RATES OFPANOPEUS HERBSTIIANDUCA PUGILATOR

“…Neither size nor oxygen concentration factors should have influenced our findings since the crabs were of approximately the same size (0.5-2.0 grams dry weight), and the crabs were partially exposed during the metabolic determinations in the Gilson respirometer. The oxygen consumption values reported byLeffler (1973) were of the same order of magnitude as those determined in our study, but exact conversion from Leffler's to our work is impossible since he used a lower salinity (22 ( / (C } than we (35/ ). RecentlyDimock and Groves (1975) have shown that the oxygen consumption of Panopeus herbstii is influenced by temperature and salinity combinations.…”

“…The oxygen consumption of Panopeus hcrbstii with response to size and oxygen concentration has been investigated by Leffler (1973). This study utilized constant conditions, but a similar measurement technique.…”

JuvenileLymnaeaventilate,learn and remember differently than do adultLymnaea

“…Thus both juvenile and adult Lymnaea when challenged with hypoxic conditions must significantly increase ventilatory behaviour in order to preserve respiratory homeostasis. Studies in land snails (Herreid, 1977), air-breathing fish (Munshi and Dube, 1973), and Xanthid crabs (Leffler, 1973) have shown that metabolic rates, measured by oxygen consumption, are higher in smaller animals. Therefore, one would expect small (juvenile) snails to have higher metabolic requirements compared with larger (adult) snails.…”

Ionic and osmotic regulation, metabolic response to salinity, and physiological response to pesticides of juvenile Callinectes Sapidus Rathbun

“…observed in the burrowing Xanthid crabs, Menippe mevcenaria and Panopeus herbstii (Leffler, 1973), that naturally encounter low 0~concentrations.…”