Wheeler T G
Exp Eye Res. 1987 May;44(5):617-22. doi: 10.1016/s0014-4835(87)80133-1.
Goldfish spectral sensitivity is shown to be a function of temperature. Optic nerve responses (compound action potentials) to the onset (ON) and cessation (OFF) of a step stimulus were obtained at 10 degrees C and 22 degrees C. At 22 degrees C the ON sensitivity peak at 460 nm with a secondary peak at 620 nm. The OFF sensitivity had a single peak at 620 nm. The peak sensitivities at 10 degrees C were all shifted to longer wavelengths. At 10 degrees C the ON sensitivity peaked at 500 nm and the secondary peak shifted to 660 nm and was 300% higher than the 660 nm sensitivity at 22 degrees C. The red OFF sensitivity shifted to 660 nm at 10 degrees C was also 300% greater than the 22 degrees C OFF sensitivity at 660 nm. The peak sensitivity shifts observed between the 22 degrees C and 10 degrees C data may be due to a change in concentration of the A1-vs. A2-based visual pigments: at 22 degrees C the A1-based pigments predominate and at 10 degrees C the A2-based pigments prevail. The increase in red sensitivity at 10 degrees C for both the ON and OFF data could reflect the increased concentration of O2 at the lower temperature. Only red sensitivity was affected by temperature. Both the shift in peak sensitivity across the spectrum at lower temperatures and the increase in red sensitivity are consistent with survival capabilities.
金鱼的光谱敏感性被证明是温度的函数。在10摄氏度和22摄氏度下获得了对视神经对阶跃刺激的起始（ON）和终止（OFF）的反应（复合动作电位）。在22摄氏度时，ON敏感性峰值在460纳米，在620纳米处有一个次峰。OFF敏感性在620纳米处有一个单峰。10摄氏度时的峰值敏感性都向更长波长移动。在10摄氏度时，ON敏感性在500纳米处达到峰值，次峰移至660纳米，且比22摄氏度时660纳米处的敏感性高300%。在10摄氏度时移至660纳米的红色OFF敏感性也比22摄氏度时660纳米处的OFF敏感性高300%。在22摄氏度和10摄氏度数据之间观察到的峰值敏感性变化可能是由于基于A1与基于A2的视觉色素浓度的变化：在22摄氏度时，基于A1的色素占主导，在10摄氏度时，基于A2的色素占优势。对于ON和OFF数据，10摄氏度时红色敏感性的增加可能反映了较低温度下氧气浓度的增加。只有红色敏感性受温度影响。较低温度下整个光谱峰值敏感性的移动以及红色敏感性的增加都与生存能力一致。
