. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Dartk-edaptsd . n ^ -. 1 320 400 4SO 560 Wavelength (nm) 420 500 580 Wavelength (nm) Figure 8. Dark-adapted spectral sensitivity curves for individual specimens of Janice/la spinacauda. (A) The short wavelength sensitiv- ity peaks at about 350 nm, while the long wavelength sensitivity peaks at 500 nm. (B) In another specimen, the short wavelength peak was at 420 nm. while the long wavelength sensitivity maximum was a shoul- der rather than a distinct peak. (C) Green chromatic adaptation en- hanced the relative size of the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Dartk-edaptsd . n ^ -. 1 320 400 4SO 560 Wavelength (nm) 420 500 580 Wavelength (nm) Figure 8. Dark-adapted spectral sensitivity curves for individual specimens of Janice/la spinacauda. (A) The short wavelength sensitiv- ity peaks at about 350 nm, while the long wavelength sensitivity peaks at 500 nm. (B) In another specimen, the short wavelength peak was at 420 nm. while the long wavelength sensitivity maximum was a shoul- der rather than a distinct peak. (C) Green chromatic adaptation en- hanced the relative size of the violet peak, as well as shifting the sensitiv- ity maximum from 350 to 410 nm. Data from one specimen. Intensity of adapting light was x 10~6 nW/cnr/s. (D) Violet chromatic ad- aptation had a greater effect on short wavelength sensitivity, resulting in a relative enhancement of the blue-green peak. Data from one speci- men. Intensity of adapting light was x 10 3 >tW/cm2/s. Oplophorus spinosus andO. gracilirostris The results for O. spinosus and O. gracilirostris were the same, and will be discussed together with no distinc- tion between species. Representative examples of dark- adapted spectral sensitivity curves for two specimens are shown in Figure 10 (A, B). The variability in these curves is similar to that seen in the previous two species. Chromatic adaptation experiments again provide evi- dence that more than one visual pigment is present. Vio- let adaptation resulted in a small depression in the violet shoulder (Fig. IOC). The only specimen that had a dis- tinct violet peak in its dark-adapted spectral sensitivity curve (see Fig. 10B) died during the chromatic adapta- tion experiment; therefore, the effects of violet adapta- tion are not as apparent as in Systellaspis or Janicella. The effects of green adaptation were much more dra- matic. The sensitivity to long wavelength light was greatly diminished with respect to the short wavelength sensitivity, resul
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
