Changes in thyroid hormone concentrations during early development and metamorphosis of the flounder, Paralichthys olivaceus : Endocrinology

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概要

• 論文の詳細を見る

• Changes in the whole body concentrations of thyroid hormones were examined during early development and metamorphosis of the flounder (Paralichthys olivaceus). Thyroxine (T4) as well as triiodothyronine (T3) were detected in eggs just after fertilization; concentration of T3 was 6-7 ng/g and that of T4 was about I ng/g. Concentration of T3 declined gradually until hatching, decreased sharply from 5 ng/g to 0.5 n/g within one day after hatching and became non-detectable (below 0.1 ng) thereafter. T4 concentration did not show marked changes until 10 days after fertilization. Until the climax of metamorphosis, T3 was undetectable and T4 concentration was less than I ng/g. During the climax, T4 concentration increased markedly to 10-15 ng/g, and T3 concentration increased to a detectable level (1-1.5 ng/g). After the completion of metamorphosis, T4 concentration decreased to about a half of the peak level. T3 concentration also decreased slightly. These observations were discussed in relation to the role of T4 and T3 in early development and metamorphosis of the flounder.

• 社団法人日本動物学会の論文
• 1990-02-15

著者

• Tagawa Masatomo

  Ocean Research Institute University Of Tokyo

• Miwa Satoshi

  Lnland Station National Research Institute Of Aquaculture Tamaki

• Hirano T

  Hawaii Institute Of Marine Biology University Of Hawaii

• TAGAWA MASAMOTO

  Ocean Research Institute, University of Tokyo

• Inui Yasuo

  lnland Station, National Research Institute of Aquaculture, Tamaki

• JESUS DE

  Ocean Research Institute, University of Tokyo

• HIRANO TETSUYAT

  Ocean Research Institute, University of Tokyo

• Inui Y

  National Research Inst. Aquaculture Mie Jpn

• Tagawa Masamoto

  Ocean Research Institute University Of Tokyo

• Jesus De

  Ocean Research Institute University Of Tokyo

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