Article (Scientific journals)
Coral reef fish communities of natural habitats and man-made coastal structures in Bora-Bora (French Polynesia)
Gairin, Emma; Minier, Lana; Claverie, Thomas et al.
2023In Belgian Journal of Zoology
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Keywords :
Urbanisation; coastal habitats; reef fishes; nurseries; coral reefs; ichthyology; Ecology; fishes; coastal management
Abstract :
[en] Coastal habitats have long been recognised to be nurseries and growing grounds for many marine organisms. Worldwide, coastal hardening and urbanisation are leading to the removal of natural ecosystems. The tropical island of Bora-Bora in the South Pacific has undergone extensive coastal changes, with the construction of seawalls along more than half of its coastline since the 1950s. The daytime and night-time juvenile and adult fish communities were surveyed with multiple temporal replicates on a range of lagoon and coastal habitats on Bora-Bora. Over 47% of all fish on coastal habitats were juveniles. Mangroves, traditionally viewed as nurseries, had a high daytime and night- time abundance of juveniles, but less than 1% of the coastline of Bora-Bora consists of mangroves. The manmade seawalls, which are the most common type of coastal habitat on the island, were associated with lower juvenile densities during the day and promoted the presence of predators. The comparison of coastal and lagoon sites also highlighted contrasting life history strategies depending on coral reef fish species: although many favour coastal habitats as juveniles, others do not undergo ontogenetic shifts and thus other habitats must be considered when designing management plans to protect juvenile fish. Overall, our surveys show the importance of natural coastal zones in the lifecycle of numerous coral reef fish species in the lagoon of Bora-Bora and highlight the potential long-term impacts of coastal hardening on fish communities.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Zoology
Aquatic sciences & oceanology
Environmental sciences & ecology
Author, co-author :
Gairin, Emma;  Okinawa Institute of Science and Technology, Tancha, Okinawa, Japan ; Département de Biologie, École Normale Supérieure, Université PSL, Paris, France
Minier, Lana;  EPHE, PSL Research University, UPVD-CNRS, Papetoai, Moorea, UAR, French Polynesia ; Laboratoire d'Excellence "CORAIL", Perpignan, France ; Polynésienne des Eaux, Bora-Bora, Vaitape, French Polynesia
Claverie, Thomas;  UMR MARBEC, Centre Universitaire de Formation et de Recherche de Mayotte, Mayotte, France
Dromard, Charlotte;  Laboratoire d'Excellence "CORAIL", Perpignan, France ; Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Bâtiment de Biologie Marine, Université des Antilles -MNHN -CNRS, Pointe-à-Pitre, Guadeloupe
Maueau, Tehani;  Association Ia Vai Ma Noa Bora-Bora, Bora-Bora ; French Polynesia
Collin, Antoine;  Laboratoire d'Excellence "CORAIL", Perpignan, France ; EPHE-PSL University, CNRS LETG, Dinard, France
Frederich, Bruno  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Ecologie évolutive
Bertucci, Frédéric ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive ; EPHE, PSL Research University, UPVD-CNRS, Papetoai, Moorea, UAR, French Polynesia
Lecchini, David;  EPHE, PSL Research University, UPVD-CNRS, Papetoai, Moorea, UAR, French Polynesia ; Laboratoire d'Excellence "CORAIL", Perpignan, France
Language :
English
Title :
Coral reef fish communities of natural habitats and man-made coastal structures in Bora-Bora (French Polynesia)
Publication date :
May 2023
Journal title :
Belgian Journal of Zoology
ISSN :
0777-6276
eISSN :
2295-0451
Publisher :
Koninklijke Belgische Vereniging voor Dierkunde, Belgium
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 May 2023

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