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Figure 4


Fig. 4. Spectral sensitivity curves calculated from the electroretinograms (ERGs) of weakfish, spotted seatrout, red drum, Atlantic croaker and spot for wavelengths of 300—800 nm. N=6 individuals per species except Atlantic croaker (N=5). Responses at each wavelength were normalized to the wavelength of maximal voltage response (Vmax) for each individual. Open symbols are results of day experiments, filled symbols are results of night experiments. Error bars indicate ±1 s.e.m.





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