Article (Scientific journals)
Application of DNA Barcoding for Monitoring Madagascar Fish Biodiversity in Coastal Areas
Jaonalison, Henitsoa; Durand, Jean-Dominique; Mahafina, Jamal et al.
2022In Diversity, 14 (5), p. 377
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Keywords :
coastal habitat; fish juvenile; fish post-larvae; marine biodiversity; molecular tool
Abstract :
[en] Madagascar is a marine biodiversity hotspot. A recent checklist recorded 1689 marine or transitional water fish species, 2.5% being endemic. To date, studies in this country were mostly focused on adult fishes using morphological-based identification. The early life stages of fishes remain largely understudied. The present work aimed to improve knowledge of fish biodiversity in Madagascar by focusing on post-larval reef fishes and settled juveniles in seagrass meadows of southwest Madagascar by using either species identification keys or DNA barcoding. Up to 119,500 individuals were collected, and 1096 individuals were successfully barcoded. We identified 387 species—85 through their morphology (with 58 unsuccessfully sequenced) and 302 by using CO1 barcoding corresponding to 302 barcode index numbers (BINs). This study added 27 new BINs for the BOLD database, 120 new for Madagascar, but only 159 were assigned a precise species name. By referring to the updated checklist of Madagascar fishes, 10 new species were detected for Madagascar. This number will probably increase when all the barcoded specimens become assigned to precise species names. These preliminary findings stress our poor knowledge of marine fish biodiversity in Madagascar and demonstrate the relevance of DNA barcoding in improving this knowledge.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Jaonalison, Henitsoa  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Institut Halieutique et des Sciences Marines, Université de Toliara, Toliara, Madagascar
Durand, Jean-Dominique;  MARBEC, Université Montpellier, IRD, CNRS, Ifremer, Montpellier, France
Mahafina, Jamal;  Institut Halieutique et des Sciences Marines, Université de Toliara, Toliara, Madagascar
Valade, Pierre;  Organisme Consultant en Environnement Aquatique, Ravine des Cabris, France
Collet, Adeline;  Organisme Consultant en Environnement Aquatique, Ravine des Cabris, France
Cerqueira, Frédérique;  ISEM, CNRS, University of Montpellier, IRD, EPHE, Montpellier, France
Ponton, Dominique ;  ENTROPIE, IRD, Université de La Réunion, CNRS, Université de la Nouvelle-Calédonie, Ifremer, c/o Institut Halieutique et des Sciences Marines, Université de Toliara, Toliara, Madagascar
Language :
English
Title :
Application of DNA Barcoding for Monitoring Madagascar Fish Biodiversity in Coastal Areas
Publication date :
May 2022
Journal title :
Diversity
eISSN :
1424-2818
Publisher :
MDPI
Volume :
14
Issue :
5
Pages :
377
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CEPF - Critical Ecosystem Partnership Fund [US-VA]
Rufford Foundation [GB]
WIOMSA - Western Indian Ocean Marine Science Association [TZ]
Funding text :
The research was funded by the Critical Ecosystem Partnership Fund under Grant MG 66341; the Rufford foundation under Grant 2ac29a-1; Western Indian Ocean Marine Science As-sociation (WIOMSA) under MARG II Contract 1/2016; the French National Research Institute for Sustainable Development under Grant JEAI-ACOM/IH.SM/IRD, and the European Union under grant POE 2.10 POCT FED–FEDER ‘Biodiversité de l’Océan Indien’.Funding: The research was funded by the Critical Ecosystem Partnership Fund under Grant MG 66341; the Rufford foundation under Grant 2ac29a-1; Western Indian Ocean Marine Science Association (WIOMSA) under MARG II Contract 1/2016; the French National Research Institute for Sustainable Development under Grant JEAI-ACOM/IH.SM/IRD, and the European Union under grant POE 2.10 POCT FED–FEDER ‘Biodiversité de l’Océan Indien’.
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since 19 November 2023

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