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Rhythmic growth activity in fish scales
Author(s) -
Ottaway E. M.
Publication year - 1978
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.1095-8649.1978.tb04209.x
Subject(s) - biology , rhythm , fish <actinopterygii> , growth rate , temperate climate , glycine , zoology , ecology , amino acid , biochemistry , fishery , medicine , mathematics , geometry
Changes in the growth of fish are reflected in the rate of growth of their scales. This produces the rings used in ageing temperate species. A technique has been devised for measuring the rate at which [ 14 C] glycine is incorporated into isolated scales in vitro. This method has been used to investigate various rhythmic activities in fish growth. The results show that the amino acid is incorporated into at least two types of cell and that deposition in the scale occurs with at least two different rhythms with very different frequencies.