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The effects of different daytime light intensities on the diel patterns of plasma melatonin in fingerling and broodstock rainbow trout (Oncorhynchus mykiss)
journal contribution
posted on 2023-05-16, 16:48 authored by Guerrero-Tortolero, DA, Porter, MJR, Bromage, NDiel plasma melatonin levels were measured to determine the effects of varied light intensities in juvenile and adult rainbow trout. This study showed that night-time melatonin plasma concentrations were significantly higher (P < 0.05) in juveniles (600±75 pg/mL to 492±29pg/mL) than broodstock (314±83pg/mL to 265±55pg/mL) at 1250 lux. Light intensities of 700 lux were unresponsive in both groups. This amplitudinal difference between juvenile and adult fishes response to light may suggest a developmental importance of melatonin. © 2004 Kluwer Academic Publishers.
History
Publication title
Fish Physiology and BiochemistryVolume
28Issue
1-4Pagination
415-416ISSN
0920-1742Department/School
Institute for Marine and Antarctic StudiesPublisher
Springer-Verlag DordrechtPlace of publication
NetherlandsRepository Status
- Restricted