Erwan Delrieu-Trottin

Erwan Delrieu-Trottin
Ecole Pratique des Hautes Etudes | EPHE · Centre d'Ecologie Fonctionnelle et Evolutive (Montpellier)

PhD

About

43
Publications
20,615
Reads
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519
Citations
Citations since 2016
35 Research Items
423 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Additional affiliations
October 2018 - November 2020
October 2018 - November 2020
Institut des Sciences de l'Evolution Montpellier (ISEM)
Position
  • PostDoc Position
January 2016 - September 2018
Universidad Austral de Chile
Position
  • PostDoc Position

Publications

Publications (43)
Article
Full-text available
Aim To understand the origin of the most isolated endemic fish fauna of the Indo‐Pacific, Easter Island (Rapa Nui), and to infer divergence times and colonization routes of the endemic coral reef fish fauna from their closest relatives. Location Easter Island, Pacific Ocean. Methods Samples of ten species were used: six small‐range species endemi...
Article
Full-text available
DNA barcoding opens new perspectives on the way we document biodiversity. Initially proposed to circumvent the limits of morphological characters to assign unknown individuals to known species, DNA barcoding has been used in a wide array of studies where collecting species identity constitutes a crucial step. The assignment of unknowns to knowns as...
Article
Full-text available
Abstract Monitoring plans using environmental DNA have the potential to offer a standardized and cost‐efficient method to survey biodiversity in aquatic ecosystems. Among these ecosystems, coastal wetlands are key elements that serve as transition zones between marine and freshwater ecosystems and are today the target of many conservation and resto...
Article
Pleistocene Climatic Fluctuations (PCF) are frequently highlighted as important evolutionary engines that triggered cycles of biome expansion and contraction. While there is ample evidence of the impact of PCF on biodiversity of continental biomes, the consequences in insular systems depend on the geology of the islands and the ecology of the taxa...
Article
Full-text available
Elucidating demographic history during the settlement of ecological communities is crucial for properly inferring the mechanisms that shape patterns of species diversity and their persistence through time. Here, we used genomic data and coalescent‐based approaches to elucidate for the first time the demographic dynamics associated with the settleme...
Article
The Blue-lined toby Canthigaster caeruleolineata n. sp. is described from the southeast coast of La Réunion, southwestern Indian Ocean, based on a single specimen that may have originated from a deep reef habitat. The species is distinguished within the genus by the few short, oblique blue streaks on the dorsal half of the body, and is characterise...
Article
Full-text available
The blenniids of the genus Scartichthys are one of the most common fishes of Central and South American Pacific coastal reefs. This being said, Scartichthys spp. remain difficult to identify in the field, and identification is particularly challenging across the ca. 6000 km where three of the four currently accepted species are known to occur in sy...
Article
The species of Eleotris from Indonesia are reviewed and compared to the known species described from the area. Nine species are recognized including three new species in the melanosoma neuromast pattern group. These are described using genetic and morpho-meristic approaches. The new species differ by a high percentage of genetic divergence in parti...
Article
Full-text available
The delineation of species and their evolutionary relationships informs our understanding of biogeography and how regional faunas are assembled. The peripheral geography and local environment of reefs in the subtropical South Pacific likely promotes the allopatric and adaptive divergence of taxa colonising from the tropics; however, the fauna of th...
Article
Aim Sea-level changes have long been put forward to explain the colonization of Southeast Asian islands by freshwater aquatic organisms. We examined the relative impact of Sundaland geology since the Oligocene and of Pleistocene Eustatic Fluctuations on the mitochondrial lineage diversification of a species-rich subfamily of freshwater fishes widel...
Article
Full-text available
Biodiversity knowledge is widely heterogeneous across the Earth’s biomes. Some areas, due to their remoteness and difficult access, present large taxonomic knowledge gaps. Mostly located in the tropics, these areas have frequently experienced a fast development of anthropogenic activities during the last decades and are therefore of high conservati...
Preprint
Full-text available
The blenniids of the genus Scartichthys are one of the most common fishes of Central and South American Pacific coastal reefs. This being said, Scartichthys spp. remain difficult to identify in the field, and identification is particularly challenging across the ca. 6000 km where three of the four currently accepted species are known to occur in sy...
Article
Full-text available
A new species of Schismatogobius, a freshwater goby, is described from Sulawesi (Indonesia). It differs from other species belonging to the genus by a high percentage of genetic divergence in partial COI gene (652 bp) and by several characters, including the number of pectoral fin rays, the pectoral fin colour pattern, the jaw length/head length ra...
Article
Full-text available
The Coral Triangle (CT), a region spanning across Indonesia and Philippines, is home to about 4,350 marine fish species and is among the world's most emblematic regions in terms of conservation. Threatened by overfishing and oceans warming, the CT fisheries have faced drastic declines over the last decades. Usually monitored through a biomass‐based...
Article
Full-text available
Sundaland constitutes one of the largest and most threatened biodiversity hotspots; however, our understanding of its biodiversity is afflicted by knowledge gaps in taxonomy and distribution patterns. The subfamily Rasborinae is the most diversified group of freshwater fishes in Sundaland. Uncertainties in their taxonomy and systematics have constr...
Article
Full-text available
The emergence of DNA barcoding and metabarcoding opened new ways to study biological diversity, however, the completion of DNA barcode libraries is fundamental for such approaches to succeed. This dataset is a DNA barcode reference library (fragment of Cytochrome Oxydase I gene) for 2,190 specimens representing at least 540 species of shore fishes...
Preprint
Full-text available
Elucidating demographic history during the settlement of ecological communities is crucial to properly inferring the mechanisms that shape species diversity and their persistence through time. We used genomic data to elucidate for the first time the demographic dynamics associated with the settlement by endemic reef fish fauna of one of the most is...
Article
Full-text available
Biodiversity hotspots have provided useful geographic proxies for conservation efforts. Delineated from a few groups of animals and plants, biodiversity hotspots do not reflect the conservation status of freshwater fishes. With hundreds of new species described on a yearly basis, fishes constitute the most poorly known group of vertebrates. This si...
Preprint
Now published in Scientific Data doi: 10.1038/s41597-019-0123-5 Open Access: https://www.nature.com/articles/s41597-019-0123-5 The emergence of DNA barcoding and metabarcoding opened new ways to study biological diversity, however, the completion of DNA barcode libraries is fundamental for such approaches to succeed. This dataset is a DNA barcode...
Article
Full-text available
Rapa Nui, commonly known as Easter Island (Chile), is one of the most isolated tropical islands of the Pacific Ocean. The island location of Rapa Nui makes it the easternmost point of the geographic ranges for many western Pacific fish species that are restricted to the subtropical islands south of 20°S latitude. The blenniid fish species Cirripect...
Article
Full-text available
Geomorphological features of atolls in the Tuamotu archipelago (French Polynesia) created during glaciation periods of the Pleistocene enable unique studies of evolution. Atolls not far from one another may be classic open atolls with water exchange between the ocean and the lagoon, or they may have an enclosed lagoon, without a direct ocean connec...
Article
Full-text available
on the occasion of the 10th Indo-Pacific Fish Conference (http://ipfc10.criobe.pf/) to be held in Tahiti in October 2017, it seemed timely to update Randall’s 1985 list of the fishes known from French Polynesia. Many studies focusing on fishes in this area have been published since 1985, but Randall’s list remains the authoritative source. Herein w...
Article
Full-text available
The newly-desribed Centropyge cocosensis has long been considered a variant of the lemonpeel pygmy angelfish C. flavissima because of their overall similarity in color patterns. DiBattista and co-authors [J. Hered. 107 (2016) 647–653] recently contested the validity of C. cocosensis, based on arguments that are challenged here.
Article
Full-text available
Despite the unique nature of endemic species, their origin and population history remain poorly studied. We investigated the population history of 28 coral reef fish species, close related, from the Gambier and Marquesas Islands, from five families, with range size varying from widespread to small-range endemic. We analyzed both mitochondrial and n...
Chapter
Full-text available
Malgré plusieurs missions d'inventaire focalisées sur les poissons des îles Marquises, depuis Jardin, 1859, les poissons côtiers de cet archipel sont encore mal connus : 20 espèces nouvelles découvertes lors de la dernière mission en 2011 et la liste actuelle comprenant 495 espèces décrites, dont 68 espèces endémiques (13,7 %). La communauté des po...
Article
Full-text available
Malgré plusieurs missions d’inventaire focalisées sur les poissons des îles Marquises, depuis Jardin, 1859, les poissons côtiers de cet archipel sont encore mal connus : 20 espèces nouvelles découvertes lors de la dernière mission en 2011 et la liste actuelle comprenant 495 espèces décrites, dont 68 espèces endémiques (13,7 %). La communauté des po...
Article
Full-text available
This article documents several cases of widespread species, which usually mimic other widespread species throughout the Indo-Pacific, using endemic Marquesan species as a model and displaying endemic mimicry patterns. This discovery adds a new line of evidence to the uniqueness of the Marquesas Islands, which not only host a high number of endemic...
Article
Full-text available
Genetic variation was examined in two complex cases of Indo-Pacific pygmy angelfishes (genus Centropyge; Pomacanthidae). The lemonpeel pygmy angelfish C. flavissima (Cuvier and Valenciennes) has a geographically disjunct Indian vs. Pacific distribution and the individuals from these two regions differ by their colour patterns. Previous research on...
Article
Full-text available
Expedition Pakaihi I Te Moana was conducted in 2011 to the Marquesas Islands, lying between 07°50ʹ S and 10°35ʹ S latitude and 138°25ʹ W and 140°50ʹ W longitude. The expedition combined extensive collections and visual censuses of the shore fish fauna. A total of 74 species are added as new records for the Marquesas Islands; the coastal fish fauna...
Article
Full-text available
Endemic species are frequently assumed to have lower genetic diversity than species with large distributions, even if closely related. This assumption is based on research from the terrestrial environment and theoretical evolution- ary modelling. We test this assumption in the marine environment by analysing the mitochondrial genetic diversity of 3...
Article
Full-text available
A new species of wrasse, Macropharyngodon pakoko, is described from the Marquesas Islands, bringing the total number of species of the genus Macropharyngodon to 12. Macropharyngodon pakoko was found at depths from 0-42 m and is endemic to the Marquesas Islands. Macropharyngodon pakoko is similar to M. meleagris, which is widely distributed from the...
Article
Full-text available
Two new species of anthiine fishes are described from the Marquesas Islands, French Polynesia. Plectranthias flammeus was found at depths from 20–45 m and is characterized by dorsal rays X, 14 or 15, with spines 1–6 bearing fleshy white tabs at their tips, longest fleshy tab on spine 4; 14 unbranched pectoral rays; lateral line incomplete with 16–1...
Article
Full-text available
A new species of the tetraodontid fish genus Canthigaster was discovered during a recent expedition to the Gambier Archipelago, French Polynesia. The new species, named Canthigaster criobe herein, is the only known species of Canthigaster having 12–14 brown stripes along the body (stripes beginning in front of the eye, extending along the body, and...

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