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Seasonal Growth of the Purple Sea Urchin Heliocidaris crassispina Revealed by Sequential Fluorochrome Tagging.
Suarez, Juan Diego Urriago; Wong, Jane C Y; Lui, Gilbert; Dumont, Clement P; Qiu, Jian-Wen; Ganmanee, Monthon.
Afiliação
  • Suarez JDU; Department of Animal Production Technology and Fisheries, Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand. E-mail: monthon.ga@kmitl.ac.th (Ganmanee); urriago@gmail.com (Suarez).
  • Wong JCY; Department of Biology, Hong Kong Baptist University, Hong Kong, China. E-mail: chingyanw11@gmail.com (Wong).
  • Lui G; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), China. E-mail: qiujw@hkbu.edu.hk (Qiu).
  • Dumont CP; Department of Biology, Hong Kong Baptist University, Hong Kong, China. E-mail: chingyanw11@gmail.com (Wong).
  • Qiu JW; Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China. E-mail: csglui@gmail.com (Lui).
  • Ganmanee M; School of Biological Sciences, The University of Hong Kong, Hong Kong, China. E-mail: clement@asc.run (Dumont).
Zool Stud ; 60: e38, 2021.
Article em En | MEDLINE | ID: mdl-34966459
Many studies have applied fluorochrome tagging to examine the growth of animals with calcified skeletons, but most of them have used only a single tag to determine the annual growth rate. We used sequential fluorochrome tagging to study the seasonal growth of the purple sea urchin Heliocidaris crassispina in Hong Kong waters from February 2012 to February 2013. Sea urchins ranging from 18.9 to 42.7 mm in test diameter had a yearly growth from 0.6 to 13.0 mm. During that year, the sea urchins grew from 0.6 to 5.0 mm in test diameter during the first six months, and from 0.4 to 10.2 mm in test diameter in the second six months. The seasonal differences in growth were confirmed using the von Bertalanffy model. The growth was clear for young sea urchins, especially for individuals less than 5 years old, but was not evident for sea urchins older than 7 years. The seasonal differences in growth were probably related to the reproductive cycle and the seasonal differences in environmental conditions. Our empirical results provide the first evidence of seasonal changes in growth for H. crassispina, demonstrating the usefulness of sequential fluorochrome tagging in studying the growth of sea urchins in the field. We also identify the problem of low recovery of tagged individuals and provide recommendations to improve the tagging procedure.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Zool Stud Ano de publicação: 2021 Tipo de documento: Article País de publicação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Zool Stud Ano de publicação: 2021 Tipo de documento: Article País de publicação: China