SEAFDECINSTITUTIONAL REPOSITORY
    • English
    • ไทย
    • 日本語
    • Bahasa Indonesia
  • Bahasa Indonesia 
    • English
    • ไทย
    • 日本語
    • Bahasa Indonesia
  • Masuk
Lihat Publikasi 
  •   Beranda
  • 03 SEAFDEC External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • AQD
  • Lihat Publikasi
  •   Beranda
  • 03 SEAFDEC External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • AQD
  • Lihat Publikasi
JavaScript is disabled for your browser. Some features of this site may not work without it.

Thyroid hormones promote early metamorphosis in grouper (Epinephelus coioides) larvae

Thumbnail
View/Open
Request this document
Date
1998
Author
de Jesus, Evelyn Grace T.
Toledo, Joebert D.
Simpas, Marissa S.
Page views
25
Share 
 
Metadata
Perlihat publikasi penuh

Cited times in Scopus



Abstract
The response of grouper larvae to the thyroid hormones, thyroxine (T4) and triiodothyronine (T3), was examined. Two-, 3-, and 4-week-old grouper larvae were reared in seawater containing either T4 or T3 at 0.01, 0.1, and 1 ppm. T4 or T3 induced metamorphosis in all age groups in a dose-dependent manner. Regardless of the size of the larvae, metamorphosis was completed in 2 days in larvae treated with 1 ppm of either T4 or T3; 3–4 days in larvae exposed to 0.1 ppm; and 5–6 days in larvae immersed in 0.01 ppm. None of the fish in the control group completed metamorphosis during this period. Compared with the control fish, survival rates were higher in groups exposed to 0.01 ppm and lower in those exposed to 1 ppm of T3. In 4-week-old larvae, T4 treatment (0.01 to 1.0 ppm) resulted in higher survival compared to the control. These results suggest that a dose of 0.01 ppm is appropriate for acceleration of metamorphosis and improvement of survival in 3- and 4-week-old grouper larvae. A lower dose may be apropriate for earlier stages.
URI
http://hdl.handle.net/10862/1735
Suggested Citation
de Jesus, E. G. T., Toledo, J. D., & Simpas, M. S. (1998). Thyroid hormones promote early metamorphosis in grouper (Epinephelus coioides) larvae. General and Comparative Endocrinology, 112(1), 10-16.
Subject
Fish larvae; Growth regulators; Hormones; Metamorphosis; Rearing; Thyroid; Survival; Mortality; Epinephelus coioides; Thyroxine; Triiodothyronine; Development; Groupers
Koleksi
  • AQD [1107]

© SEAFDEC 2021
Contact Us | Send Feedback
 

 

Lihat

Semua PublikasiKomunitas & KoleksiTanggal terbitPengarangJudulSubjekKoleksi iniTanggal terbitPengarangJudulSubjek

Akunku

Masuk

Statistics

View Usage Statistics
Related Links
SEAFDEC/TD IRSEAFDEC/AQD IRSEAFDEC/MFRDMD IRSEAFDEC/IFRDMD IR

© SEAFDEC 2021
Contact Us | Send Feedback