Trophic morphology of goatfishes (Mullidae) from South-West Madagascar
editorial reviewed Mullids, also called goatfishes, constitutes a main group of the reef ichthyofauna . They have a worldwide distribution in tropical and subtropical reefs with a few species in temperate areas such as the North-East Atlantic coast or the Mediterranean Sea. The Mullidae family belon...
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ftorbi:oai:orbi.ulg.ac.be:2268/296793 2024-04-21T08:08:18+00:00 Trophic morphology of goatfishes (Mullidae) from South-West Madagascar Morphologie liée à l'écologie trophique des poissons chèvres (Mullidae) du sud-ouest de Madagascar Mittelheiser, Laurent Gillet, Amandine Lepoint, Gilles Frederich, Bruno 2022-11-24 https://orbi.uliege.be/handle/2268/296793 en eng https://orbi.uliege.be/handle/2268/296793 info:hdl:2268/296793 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess International Conference on Ecological Sciences, Metz, France [FR], Du 21 au 25 novembre 2022 Mullidae Ecomorphology Trophic ecology Morphometry Goatfishes Stable isotopes Coral reef Life sciences Environmental sciences & ecology Zoology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Sciences aquatiques & océanologie conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper editorial reviewed 2022 ftorbi 2024-03-27T14:58:20Z editorial reviewed Mullids, also called goatfishes, constitutes a main group of the reef ichthyofauna . They have a worldwide distribution in tropical and subtropical reefs with a few species in temperate areas such as the North-East Atlantic coast or the Mediterranean Sea. The Mullidae family belongs to the Syngnathiform order including seahorses (Syngnathidae) and trumpetfishes (Aulostomidae), and comprise 98 species grouped in 6 genera: Mullus, Upeneus, Upeneichthys, Mulloidichthys, Pseudupeneus and Parupeneus. The main morphological trait distinguishing Mullidae from other Syngnathiform families is the presence of a pair of hyoid barbels. It is often assumed that all goatfishes are mainly benthic carnivores, using barbels to extract small prey from the substrate (crustaceans, mollusks, worms). Despite the role that goatfishes play in reef ecosystems, knowledge of their ecomorphological diversity remains scarce. Thus, we explore the ecomorphology of six species of goatfishes living in sympatry at Toliara Reef (South-West of Madagascar) by using a combination of morphometric and isotopic (δ13C, δ15N and δ34S) data. The shape of cephalic region was quantified by landmark-based geometric morphometrics and linear measurements. Morphometric analyses permitted to distinguish each genus and species according to head elongation, cheek size and pectoral fins insertions. Isotopic ratios, used as trophic niche proxy, allowed to highlight clear trophic niche segregation among species built on C and S isotopic ratios. This diversity is possibly linked to variation in selected prey type and feeding areas. Interspecific variation of these two ratios could also be linked to a cross-reef distribution with species living in the lagoon and outer-shelf dwellers. The absence of variation in δ15N values suggests that the six species share similar trophic position. Our phylogenetic comparative analyses revealed a significant relationship between isotopic and morphometric data. These results allowed the formulation of hypotheses ... Conference Object North East Atlantic University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Mullidae Ecomorphology Trophic ecology Morphometry Goatfishes Stable isotopes Coral reef Life sciences Environmental sciences & ecology Zoology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Sciences aquatiques & océanologie |
spellingShingle |
Mullidae Ecomorphology Trophic ecology Morphometry Goatfishes Stable isotopes Coral reef Life sciences Environmental sciences & ecology Zoology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Sciences aquatiques & océanologie Mittelheiser, Laurent Gillet, Amandine Lepoint, Gilles Frederich, Bruno Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
topic_facet |
Mullidae Ecomorphology Trophic ecology Morphometry Goatfishes Stable isotopes Coral reef Life sciences Environmental sciences & ecology Zoology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Sciences aquatiques & océanologie |
description |
editorial reviewed Mullids, also called goatfishes, constitutes a main group of the reef ichthyofauna . They have a worldwide distribution in tropical and subtropical reefs with a few species in temperate areas such as the North-East Atlantic coast or the Mediterranean Sea. The Mullidae family belongs to the Syngnathiform order including seahorses (Syngnathidae) and trumpetfishes (Aulostomidae), and comprise 98 species grouped in 6 genera: Mullus, Upeneus, Upeneichthys, Mulloidichthys, Pseudupeneus and Parupeneus. The main morphological trait distinguishing Mullidae from other Syngnathiform families is the presence of a pair of hyoid barbels. It is often assumed that all goatfishes are mainly benthic carnivores, using barbels to extract small prey from the substrate (crustaceans, mollusks, worms). Despite the role that goatfishes play in reef ecosystems, knowledge of their ecomorphological diversity remains scarce. Thus, we explore the ecomorphology of six species of goatfishes living in sympatry at Toliara Reef (South-West of Madagascar) by using a combination of morphometric and isotopic (δ13C, δ15N and δ34S) data. The shape of cephalic region was quantified by landmark-based geometric morphometrics and linear measurements. Morphometric analyses permitted to distinguish each genus and species according to head elongation, cheek size and pectoral fins insertions. Isotopic ratios, used as trophic niche proxy, allowed to highlight clear trophic niche segregation among species built on C and S isotopic ratios. This diversity is possibly linked to variation in selected prey type and feeding areas. Interspecific variation of these two ratios could also be linked to a cross-reef distribution with species living in the lagoon and outer-shelf dwellers. The absence of variation in δ15N values suggests that the six species share similar trophic position. Our phylogenetic comparative analyses revealed a significant relationship between isotopic and morphometric data. These results allowed the formulation of hypotheses ... |
format |
Conference Object |
author |
Mittelheiser, Laurent Gillet, Amandine Lepoint, Gilles Frederich, Bruno |
author_facet |
Mittelheiser, Laurent Gillet, Amandine Lepoint, Gilles Frederich, Bruno |
author_sort |
Mittelheiser, Laurent |
title |
Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
title_short |
Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
title_full |
Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
title_fullStr |
Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
title_full_unstemmed |
Trophic morphology of goatfishes (Mullidae) from South-West Madagascar |
title_sort |
trophic morphology of goatfishes (mullidae) from south-west madagascar |
publishDate |
2022 |
url |
https://orbi.uliege.be/handle/2268/296793 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
International Conference on Ecological Sciences, Metz, France [FR], Du 21 au 25 novembre 2022 |
op_relation |
https://orbi.uliege.be/handle/2268/296793 info:hdl:2268/296793 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
_version_ |
1796948579107995648 |