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Is salmon smoltification an example of vertebrate metamorphosis? Lessons learnt from work on flatfish larval development

Artikel i vetenskaplig tidskrift
Författare Björn Thrandur Björnsson
Ingibjörg Einarsdottir
D. Power
Publicerad i Aquaculture
Volym 362-363
Sidor 264-272
ISSN 0044-8486
Publiceringsår 2012
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 264-272
Språk en
Länkar dx.doi.org/10.1016/j.aquaculture.20...
Ämnesord Metamorphosis, Smoltification, Parr-smolt transformation, Development, Flatfish, Salmonids, parr-smolt transformation, thyroid-hormone receptor, halibut, hippoglossus-hippoglossus, quantitative gene-expression, oncorhynchus-kisutch, coho salmon, atlantic salmon, growth-hormone, seawater adaptation, plasma thyroxine, lmar lc, 1982, aquaculture, v28, p91, jesus eg, 1990, general and comparative endocrinology, v79, p167, lmar lc, 1980, aquaculture, v21, p1, jesus eg, 1991, general and comparative endocrinology, v82, p369, jesus eg, 1993, fish physiology and biochemistry2nd international symp of fish
Ämneskategorier Biologiska vetenskaper

Sammanfattning

The terms metamorphosis and smoltification both describe developmental processes. However, the question on what specific criteria define these terms continues to engage scientists. At the same time, various views have been expressed on whether or not smoltification of anadromous salmonids should be regarded as an example of vertebrate metamorphosis. This short overview tries to summarize some of these discussions and starts by determining if smoltification meets any of the criteria used to define metamorphosis. In particular, it broadly compares the process of flatfish metamorphosis with that of salmonid smoltification from a morphological, endocrine, molecular and behavioral perspective. Tools and approaches developed and used in metamorphosis research which could be useful in continued work on smoltification are highlighted. (c) 2011 Elsevier B.V. All rights reserved.

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