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Temporal deposition of incremental and discontinuous zones in the otoliths of Oreochromis niloticus (L.)
Author(s) -
Zhang Z.,
Runham N. W.
Publication year - 1992
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1992.tb02580.x
Subject(s) - otolith , biology , oreochromis , deposition (geology) , fish <actinopterygii> , transmission electron microscopy , fishery , anatomy , optics , paleontology , physics , sediment
Ultrathin sections of otoliths were prepared and studied with the transmission electron microscope. The discontinuous zone starts to grow at night, 3 h before light‐on, and is completed a few hours after light‐on. The growth of the incremental zone follows immediately afterwards and continues approximately until light‐off. There is little material deposited onto the otolith at night before the start of discontinuous zone deposition.