Effect of Visual Images Simulating Entry or Withdrawal from Hiding Places on Oxygen Consumption of the Goby, Tridentiger obscurus(Physiology)

概要

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The effects of visual images on oxygen consumption of the goby, Tridentiger obscurus, in relation to hole entry and withdrawal behaviors, were investigated using a polarographic oxygen electrode with continuous flow respirometry. The oxygen consumption of an isolated fish in the respirometer tube increased markedly when the fish was placed in a visual 'hole-withdrawal' state simulated by raising a shelter which had been placed over the whole length of the respirometer. Such an effect on the oxygen consumption was found even when the 'hole-withdrawal' procedure was performed using a covered or uncovered shelter and regardless of whether the shelter was black or white. The increase in oxygen consumption in a simulated 'hole-withdrawal' state using wider shelters was lower than that in narrower shelters. This seems to be supported by the fact that the fish preferred the larger and larger-appearing objects in its hole-entering behavior. However, when an isolated fish in the respirometer tube was placed in a visual 'hole-entry' state simulated by lowering the shelter over the tube, its oxygen consumption did not change. This seems to simulate the natural habits of the fish, which tends to hole up or hide under stones.
社団法人日本動物学会の論文
1985-06-15