Using the technique of microspectrophotometry (MSP) we have found that the short wavelength sensitive cones in the retina of the pollack (Pollachius pollachius) shift in spectral absorption from a maximum (λ max) at about 420 nm in the violet to about 460 nm in the blue. This shift is not due to chromophore replacement, which substitutes rhodopsin for a porphyropsin, but is more likely to be due to a change in the opsin. The shift appears to be progressive rather than abrupt and coincides with a change in lifestyle of the fish.
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Shand, J., Partridge, J.C., Archer, S.N. et al. Spectral absorbance changes in the violet/blue sensitive cones of the juvenile pollack,Pollachius pollachius . J. Comp. Physiol. 163, 699–703 (1988). https://doi.org/10.1007/BF00603854
- Short Wavelength
- Absorbance Change
- Spectral Absorption
- Spectral Absorbance