Biological Clock in Fish  book cover
1st Edition

Biological Clock in Fish

ISBN 9780367383954
Published October 21, 2019 by CRC Press
280 Pages

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Book Description

Each organism has its own internal biological clock, which is reset by environmental cues (Zeitgebers), thus keeping it synchronized with the external environment. It is a chemically based oscillating system within cells, relying on molecular feedback loops. Circadian biological clocks exist in most organisms.

What is so special about the clock in fish? Where is it located—in the retina, inside the brain, or in the pineal? What is the molecular basis of its function? How is the clock able to keep time in the absence of environmental cues?

Although biological clocks have been intensively studied over the past four decades, only recently have the tools needed to examine the molecular basis of circadian rhythms become available. This book reviews the state of knowledge in sufficient detail and presents the latest contributions to the field, showing fish provide a unique model of the circadian biological clock.

Table of Contents

Introduction to Circadian Rhythms. The Pineal Organ of Fish. Pineal Photoreception and Temporal Physiology in Fish. Melatonin in Fish: Circadian Rhythm and Functions. Fishing for Links between the Circadian Clock and Cell Cycle. The Pineal Gland as a Source of Melatonin in Fish, and Influence of Light and Temperature on Melatonin Secretion. Cellular Clocks and the Importance of Light in Zebrafish. Feeding Rhythms in Fish: From Behavioral to Molecular Approach. Reproduction Rhythms in Fish. Influence of Melatonin on Hypothalamo-Pituitary-Ovarian Axis in Carp: Mechanism and Action. Circadian and Seasonal Rhythm in Secretion of Melatonin, Dopamine, and LH in Carp. Circadian Clocks in Retina of Goldfish.

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Ewa Kulczykowska is head of the Department of Genetics and Marine Biotechnology in the Institute of Oceanology at the Polish Academy of Sciences in Powstanców, Warszawy, Poland.

Wlodzimierz Popek is a professor in the Department of Ichthyology and Fisheries at the University of Agriculture in Krakow, Poland.

B.G. Kapoor is a former professor of zoology at Jodhpur University in India.