ABSTRACT
Photophores isolated from the mesopelagic fish Argyropelecus hemigymnus consume oxygen at a rate of 1·22± 0·17 nmol min-1 in saline at 20°C.
In the presence of 5 x 10−4moll-1 adrenalin the preparations that responded by a long-lasting luminescence showed a significant decrease of their resting respiration rate. After the adrenalin had been washed out, oxygen consumption increased immediately to the previous resting level and was inhibited by 5 x 10−4moll-1 KCN.
It is suggested that the mechanism of light production by isolated photophores of the epipelagic fish Porichthys and the mesopelagic fish Argyropelecus are different.
© 1985 by Company of Biologists
1985
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