Oxygen recption in the rainbow trout (Salmo Gairdneri)

The teleost pseudobranch: a role for preconditioning of ocular blood supply?

“…Denervation or even ablation of pseudobranchs did not indicate any significant changes in circulatory, ventilatory or osmoregulatory variables (Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978). Involvement in respiratory gas exchange, naturally associated with a structure of gill origin, is ruled out due to the supply of the pseudobranch with oxygenated blood directly from the efferent branchial artery of the first gill arch, or the dorsal aorta.…”

“…Denervation and elimination experiments have generally failed to indicate loss of any significant biological mechanisms, at least for regulation of respiration, circulation, acid-base and ionic status (e.g., Laurent and Rouzeau 1972;Laurent 1974;Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978).…”

The teleost pseudobranch: a role for preconditioning of ocular blood supply?

“…Denervation or even ablation of pseudobranchs did not indicate any significant changes in circulatory, ventilatory or osmoregulatory variables (Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978). Involvement in respiratory gas exchange, naturally associated with a structure of gill origin, is ruled out due to the supply of the pseudobranch with oxygenated blood directly from the efferent branchial artery of the first gill arch, or the dorsal aorta.…”

“…Denervation and elimination experiments have generally failed to indicate loss of any significant biological mechanisms, at least for regulation of respiration, circulation, acid-base and ionic status (e.g., Laurent and Rouzeau 1972;Laurent 1974;Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978).…”

Body Colour Response of the Carp (Cyprinus carpio) during Asphyxia

“…On the other hand, O2 receptors are also thought to be located in the buccal cavity and the pharynx exposed to the water (DE KOCK, 1963;RANDALL and SMITH, 1966;SAUNDERS and SUTTERLIN, 1971) and in the brain and dorsal aorta (BAMFORD, 1974).…”

Control and coordination of gas transfer in fishes

“…Nevertheless, it is difficult to imagine that ventilatory responses to so important an environmental parameter as O2 could be mediated solely by a humoral mechanism, with its attendant lack of speed. Hyperventilation or hypoventilation occurs about 5 s after the altered inspired Po2 contacts the gills, which is a small fraction of the complete blood circulation time (Eclancher 1972;Bamford 1974). We predict that if adrenergic mechanisms are involved, they are neural and (or) have a modifying rather than a primary influence.…”

The teleost pseudobranch: a role for preconditioning of ocular blood supply?

“…Denervation or even ablation of pseudobranchs did not indicate any significant changes in circulatory, ventilatory or osmoregulatory variables (Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978). Involvement in respiratory gas exchange, naturally associated with a structure of gill origin, is ruled out due to the supply of the pseudobranch with oxygenated blood directly from the efferent branchial artery of the first gill arch, or the dorsal aorta.…”

“…Denervation and elimination experiments have generally failed to indicate loss of any significant biological mechanisms, at least for regulation of respiration, circulation, acid-base and ionic status (e.g., Laurent and Rouzeau 1972;Laurent 1974;Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978).…”

Body Colour Response of the Carp (Cyprinus carpio) during Asphyxia

“…On the other hand, O2 receptors are also thought to be located in the buccal cavity and the pharynx exposed to the water (DE KOCK, 1963;RANDALL and SMITH, 1966;SAUNDERS and SUTTERLIN, 1971) and in the brain and dorsal aorta (BAMFORD, 1974).…”

Control and coordination of gas transfer in fishes

“…Nevertheless, it is difficult to imagine that ventilatory responses to so important an environmental parameter as O2 could be mediated solely by a humoral mechanism, with its attendant lack of speed. Hyperventilation or hypoventilation occurs about 5 s after the altered inspired Po2 contacts the gills, which is a small fraction of the complete blood circulation time (Eclancher 1972;Bamford 1974). We predict that if adrenergic mechanisms are involved, they are neural and (or) have a modifying rather than a primary influence.…”

The teleost pseudobranch: a role for preconditioning of ocular blood supply?

“…Denervation or even ablation of pseudobranchs did not indicate any significant changes in circulatory, ventilatory or osmoregulatory variables (Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978). Involvement in respiratory gas exchange, naturally associated with a structure of gill origin, is ruled out due to the supply of the pseudobranch with oxygenated blood directly from the efferent branchial artery of the first gill arch, or the dorsal aorta.…”

“…Denervation and elimination experiments have generally failed to indicate loss of any significant biological mechanisms, at least for regulation of respiration, circulation, acid-base and ionic status (e.g., Laurent and Rouzeau 1972;Laurent 1974;Bamford 1974;Perry and Heming 1981;Randall and Jones 1973;Smith and Jones 1978).…”

Body Colour Response of the Carp (Cyprinus carpio) during Asphyxia

“…On the other hand, O2 receptors are also thought to be located in the buccal cavity and the pharynx exposed to the water (DE KOCK, 1963;RANDALL and SMITH, 1966;SAUNDERS and SUTTERLIN, 1971) and in the brain and dorsal aorta (BAMFORD, 1974).…”

Control and coordination of gas transfer in fishes

“…Nevertheless, it is difficult to imagine that ventilatory responses to so important an environmental parameter as O2 could be mediated solely by a humoral mechanism, with its attendant lack of speed. Hyperventilation or hypoventilation occurs about 5 s after the altered inspired Po2 contacts the gills, which is a small fraction of the complete blood circulation time (Eclancher 1972;Bamford 1974). We predict that if adrenergic mechanisms are involved, they are neural and (or) have a modifying rather than a primary influence.…”