http://dx.doi.org/10.1007/s11802-015-2349-y">
 

Document Type

Journal Article

Department/Unit

Department of Biology

Title

Seasonal gametogenesis of host sea anemone (Entacmaea quadricolor) inhabiting Hong Kong waters

Language

English

Abstract

© 2015, Science Press, Ocean University of China and Springer-Verlag Berlin Heidelberg.Studying gonadal development of annual cycle can reveal the process of gametogenesis and reproductive period, and evaluate fertility and source utilization of a species. Host sea anemones are conspicuous members of tropical and subtropical reef ecosystems, but little is known about its biology including reproductive seasonality. Here we reported a one-year study on the gametogenesis and reproduction of host sea anemone (Entacmaea quadricolor) inhabiting Hong Kong waters. E. quadricolor tissues were sampled in 12 occasions from 5 m and 15 m depths of water, respectively. Histological sectioning of the tissues showed that E. quadricolor was dioecious, and populational ratio of female to male was 1:1.6. The gonadal development was asynchronous within an annual cycle, which included proliferating, growing, maturing, spawning, and resting stages. The spawning occurred between August and October when surface seawater temperature reached the annual maximum (28°C), suggesting that temperature is an important factor modulating the gonadal development and mature of E. quadricolor.

Keywords

annual cycle, Entacmae aquadricolor, gonad, histology, seawater temperature

Publication Date

2015

Source Publication Title

Journal of Ocean University of China (English Edition)

Volume

14

Issue

1

Start Page

143

End Page

148

Publisher

Springer Verlag

ISSN (print)

16725182

ISSN (electronic)

19935021

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