Correlation between spawning, water temperature and thyroid activity in Acanthobrama terrae-sanctae (cyprinidae) of lake tiberias

Z. Yaron*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Monthly samples of 50 Acanthobrama terrae-sanctac each were collected in Lake Tiberias during the years 1963 and 1964 and their thyroids were sectioned and examined. Seasonal changes in the height of the thyroid epithelium were observed. Fluctuations of thyroid activity are divided into two phases in relation to spawning and water temperature: the non-spawning phase (from April to December)-in which cell height is positively correlated with water temperature, and the spawning phase (January-March)-in which the epithelium is invariably high although water temperature is lowest. It is possible that thyroid activity is correlated with the physical activity of the fish during spawning.

Original languageEnglish
Pages (from-to)604-608
Number of pages5
JournalGeneral and Comparative Endocrinology
Volume12
Issue number3
DOIs
StatePublished - Jun 1969

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