Effects of exogenous thyroxine (T4) and
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Youson, John H.; Manzon, Richard G.; Peck, Brian J.; Holmes, John A.
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Article
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1997
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John Wiley and Sons
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English
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The effect of exogenous thyroid hormones (TH), thyroxine (T4) or triiodothyronine (T3), on spontaneous metamorphosis and serum T4 and T3 levels was examined in immediately premetamorphic sea lampreys (Petromyzon marinus) from two populations. Size (> or = 120 mm in length and 3.0 g in weight) and a