We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Difference in light perception capability and spectral response between juveniles and sub-adults of the whiteleg shrimp Litopenaeus vannamei as determined by electroretinogram.
- Authors
Matsuda, Keishi; Wilder, Marcy
- Abstract
In this study, we determined light perception capability in juveniles and sub-adults of L. vannamei by means of electroretinogram (ERG) measurements. Eyes were assumed to be dark-adapted when the response magnitude had stabilized after 70–80 min under dark conditions. ERG responses elicited by mono-wavelength (336–694 nm) stimuli of equal intensity were determined in individual dark-adapted specimens. Relative spectral response curves determined from the amplitudes of on and off relative responses were found to be significantly different in juveniles and sub-adults. Both maximum on relative spectral response magnitudes were observed at 544 nm, but the on relative spectral response magnitudes of sub-adults to 518 nm were higher than for juveniles, and the on relative spectral response magnitudes of sub-adults to 568 nm were lower than for juveniles. The on and off relative spectral response curves of juveniles were steeper than those of sub-adults, while the on relative spectral response magnitude of juveniles was lower than that of sub-adults from 336 to 544 nm. The off relative spectral response magnitude of juveniles was higher than that of sub-adults from 518 to 597 nm.
- Subjects
SPECTRAL sensitivity; WHITELEG shrimp; SENSORY perception; STIMULUS intensity; ELECTRORETINOGRAPHY; PENAEUS
- Publication
Fisheries Science, 2010, Vol 76, Issue 4, p633
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1007/s12562-010-0253-3