Article (Scientific journals)
Interplay between hormonal and morphological changes throughout a critical period of larval rearing in the orbicular batfish
Waqalevu, Viliame; Besson, Marc; Gache, Camille et al.
2020In Aquaculture Reports, 18, p. 100521
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Abstract :
[en] Advancement and diversification of the aquaculture industry is reliant on the development of captive breeding and rearing protocols for novel fish species. Orbicular batfish (Platax orbicularis), a major emerging species in Polynesian aquaculture, live in brackish and marine waters around coral reefs, and are highly prized by Pacific Island communities for their high-quality meat. The present study describes the larval growth of P. orbicularis from hatching until 16 days after hatching (DAH) using meristics and thyroid hormone (T3) quantification. Our study highlighted that metamorphosis of P. orbicularis is critical to their production in aquaculture, as found for other species. Levels of the thyroid hormone T3 in P. orbicularis reached a peak at 12 DAH (i.e. hormonal metamorphosis). This peak occurred in concert with important morphological changes and increased mortality and growth between 9 and 12 DAH, clearly illustrating the sensitivity of this fish during metamorphosis. Overall, our study sheds light on the metamorphosis and larval development of a novel aquaculture species, and the interplay between hormonal and morphological changes throughout a critical period of its rearing. These findings may promote the development of protocols for mass-scale production of orbicular batfish in captivity, which may be particularly beneficial to the aquaculture industries of many Pacific Island countries.
Disciplines :
Aquatic sciences & oceanology
Animal production & animal husbandry
Author, co-author :
Waqalevu, Viliame;  Kagoshima University, Japan > Laboratory of Larval Rearing Management, United Graduate School of Agricultural Sciences
Besson, Marc;  International Atomic Energy Agency > Environment Laboratories
Gache, Camille;  PSL Research University
Roux, Natacha;  PSL Research University
Fogg, Lily;  University of Queensland > Queensland Brain Institute
Bertucci, Frédéric ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive
Metian, Marc;  International Atomic Energy Agency > Environment Laboratories
Lafille, Marc-André;  Direction des Ressources Marines
Maamaatuaiahutapu, Moana;  Direction des Ressources Marines
Gasset, Eric;  Université Montpellier > MARBEC
Saulnier, Denis;  IFREMER
Laudet, Vincent;  Sorbonne Université > Observatoire Oc´eanologique de Banyuls-sur-Mer
Lecchini, David;  PSL Research University
More authors (3 more) Less
Language :
English
Title :
Interplay between hormonal and morphological changes throughout a critical period of larval rearing in the orbicular batfish
Publication date :
November 2020
Journal title :
Aquaculture Reports
eISSN :
2352-5134
Publisher :
Elsevier, Netherlands
Volume :
18
Pages :
100521
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 February 2021

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