@article {9246, title = {Molecular ecology of the freshwater shrimp Caridina natalensis and comparative analysis with other amphidromous species (Decapoda, Teleostei, and Gastropoda)}, journal = {Hydrobiologia}, year = {2023}, month = {Jun-26-2023}, abstract = {Due to their life cycle shared between rivers and oceans, amphidromous organisms serve as intriguing models for studying biogeography. To investigate the implications of their unique life history, we examined the population structure of the amphidromous shrimp Caridina natalensis across its known range in the South Western Indian Ocean. A total of 118 specimens were collected from 7 islands (Mayotte, Moh{\'e}li, Mah{\'e}, Praslin, Silhouette, Mauritius and Madagascar) and the African mainland (South Africa), and their 16S rRNA and Cox1 mitochondrial genes were sequenced. Our findings reveal significant regional structure among archipelagos, suggesting complex patterns of dispersal involving successive events of extinction-recolonization. By conducting a comparative analysis with six other amphidromous species from the South Western Indian Ocean, based on literature sources, we were able to draw conclusions regarding the amphidromous biogeography of the area. Furthermore, we propose a novel classification of amphidromous species, considering their population structure and life history traits. We defined four categories of increasing dispersal abilities and decreasing genetic population structure: 1. Land-locked species; 2. Species with reduced or facultative amphidromy; 3. Species with common amphidromy; and 4. Super-amphidromous species. Lastly, we identified the Comoros Islands (namely Mayotte and Moh{\'e}li) as a critical area for the dispersal of amphidromous species, emphasizing the need for prioritizing conservation efforts in this region.}, issn = {0018-8158}, doi = {10.1007/s10750-023-05283-7}, url = {https://link.springer.com/10.1007/s10750-023-05283-7}, author = {de Mazancourt, Valentin and Ahmed Abdou and Castelin, Magalie and Ellien, C{\'e}line and Clara Lord and Marion Mennesson and Renneville, Cl{\'e}mentine and Marquet, G{\'e}rard and Philippe Keith} } @article {9118, title = {What are the toxicity thresholds of chemical pollutants for tropical reef-building corals? A systematic review}, journal = {Environmental Evidence}, volume = {12}, year = {2023}, month = {Jan-12-2023}, doi = {10.1186/s13750-023-00298-y}, url = {https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-023-00298-y}, author = {Ou{\'e}draogo, Dakis-Yaoba and Mell, Hugo and Perceval, Olivier and Burga, Karen and Domart-Coulon, Isabelle and H{\'e}douin, Laetitia and Delaunay, Mathilde and Mireille M.M. Guillaume and Castelin, Magalie and Calvayrac, Christophe and Kerkhof, Odile and Sordello, Romain and Reyjol, Yorick and Ferrier-Pages, Christine} } @article {8466, title = {Estimating ecotoxicological effects of chemicals on tropical reef-building corals; a systematic review protocol}, journal = {Environmental Evidence}, volume = {10}, year = {2021}, month = {Dec-11-2021}, doi = {10.1186/s13750-021-00250-y}, url = {https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-021-00250-y}, author = {Ou{\'e}draogo, Dakis-Yaoba and Perceval, Olivier and Ferrier-Pages, Christine and Domart-Coulon, Isabelle and H{\'e}douin, Laetitia and Burga, Karen and Mireille M.M. Guillaume and Calvayrac, Christophe and Castelin, Magalie and Reyjol, Yorick and Sordello, Romain} } @article {8200, title = {Evidence on the impacts of chemicals arising from human activity on tropical reef-building corals; a systematic map}, journal = {Environmental Evidence}, volume = {10}, year = {2021}, month = {Sep-22-2021}, doi = {10.1186/s13750-021-00237-9}, url = {https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-021-00237-9}, author = {Ou{\'e}draogo, Dakis-Yaoba and Delaunay, Mathilde and Sordello, Romain and H{\'e}douin, L. and Castelin, Magalie and Perceval, Olivier and Domart-Coulon, Isabelle and Burga, Karen and Ferrier-Pages, Christine and Multon, Romane and Mireille M.M. Guillaume and L{\'e}ger, Cl{\'e}ment and Calvayrac, Christophe and Joannot, Pascale and Reyjol, Yorick} } @article {7480, title = {What evidence exists on the impacts of chemicals arising from human activity on tropical reef-building corals? A systematic map protocol}, journal = {Environmental Evidence}, volume = {9}, year = {2020}, month = {Aug-03-2020}, abstract = {Background: Tropical coral reefs cover ca. 0.1\% of the Earth{\textquoteright}s surface but host an outstanding biodiversity and provide important ecosystem services to millions of people living nearby. However, they are currently threatened by both local (e.g. nutrient enrichment and chemical pollution of coastal reefs, arising from poor land management, agriculture and industry) and global stressors (mainly seawater warming and acidification, i.e. climate change). Global and local stressors interact together in different ways, but the presence of one stressor often reduces the tolerance to additional stress. While global stressors cannot be halted by local actions, local stressors can be reduced through ecosystem management, therefore minimizing the impact of climate change on reefs. To inform decision-makers, we propose here to systematically map the evidence of impacts of chemicals arising from anthropogenic activities on tropical reef-building corals, which are the main engineer species of reef ecosystems. We aim to identify the combinations of chemical and coral responses that have attracted the most attention and for which evidence can be further summarized in a systematic review that will give practical information to decision-makers.
Methods: The systematic map will follow the Collaboration for Environmental Evidence Guidelines and Standards for Evidence Synthesis in Environmental Management. We will search the relevant literature using English terms combined in a tested search string in two publication databases (Web Of Science Core Collection and Scopus). The search string will combine terms describing the population (tropical reef-building corals) and the exposure (chemicals). We will supplement this literature with some more obtained through search engines, specialist websites, and through a call to local stakeholders. Titles, abstracts, and full-texts will then be successively screened using pre-defined eligibility criteria. A list of pre-defined variables will then be extracted from full-texts. Finally, a database of all studies included in the map with coded metadata will be produced. The evidence will be described in a map report with text, figures and tables, and a matrix showing the distribution and frequency of included study into types of exposure and types of outcomes will be computed to identify potential knowledge gaps and knowledge clusters.}, keywords = {Contamination, Hermatypic, Nutrients, pollution, Scleractinian}, doi = {10.1186/s13750-020-00203-x}, url = {https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-020-00203-x}, author = {Ou{\'e}draogo, Dakis-Yaoba and Sordello, Romain and Brugneaux, S. and Burga, K. and Calvayrac, C. and Castelin, Magalie and Domart-Coulon, Isabelle and Ferrier-Pages, C and Mireille M.M. Guillaume and H{\'e}douin, L. and Joannot, P. and Perceval, O. and Reyjol, Yorick} } @article {5929, title = {Resurrection of Caridina natalensis De Man, 1908 (Crustacea: Decapoda: Atyidae) in the South Western Indian Ocean}, journal = {Zootaxa}, volume = {4543}, year = {2019}, pages = {375-387}, abstract = {

Numerous specimens of a freshwater shrimp with small eggs belonging to the Caridina nilotica complex collected in the South Western Indian Ocean were studied and compared with recent and old collection specimens genetically (16S mito-chondrial analysis for recent and type specimens) and morphologically. The results revealed that, in the Indian Ocean, what has been identified by several authors under various species names of the complex C. nilotica, was in fact C. natal-ensis De Man, 1908. This valid species is re-described and compared with closely related species, often confused with it in this area: C. brachydactyla De Man, 1908, C. brevidactyla Roux, 1920, C. gracilipes De Man, 1892 and C. longirostris H. Milne Edwards, 1837.

}, keywords = {16S, Caridina, Comoros, Integrative taxonomy, Madagascar, Mayotte, morphology, Seychelles, South Africa}, author = {de Mazancourt, Valentin and Mlambo, MC and Castelin, Magalie and Renneville, C and Marquet, G{\'e}rard and Philippe Keith} } @article {5019, title = {Genetic and morphological evidence for cryptic species in Macrobrachium australe and resurrection of M. ustulatum (Crustacea, Palaemonidae)}, journal = {European Journal of Taxonomy}, volume = {289}, year = {2017}, month = {03/2017}, pages = {1{\textendash}27}, abstract = {

\ Macrobrachium australe is an amphidromous prawn living in the insular freshwater systems of the Indo-Pacific. Because it possesses few informative morphological characters, that often vary from one habitat to another, M. australe has produced much taxonomic confusion and has historically been described under eight synonyms. Here, 53 specimens collected throughout the Indo-Pacific under the name M. australe were phylogenetically and morphologically examined. Results revealed that what has been called M. australe belongs to at least two distinct species: M. australe, distributed from the Southwest Indian Ocean to the Central Pacific Ocean, and a cryptic species potentially restricted to the Northwest Pacific Ocean, here identified as M. ustulatum, which until now was considered as a junior synonym. Although they are not quite found in the same habitat (lentic-lotic), the presence of these distinct, and reciprocally monophyletic entities in the same rivers on the islands of Palau and Santo strongly favors the hypothesis of two reproductively isolated entities. Six morphological characters, including the proportions of the joints of the male second pereiopod, the shape of the epistome lobe and the armature of the fourth thoracic sternite, are evidenced as diagnostic. A neotype of M. australe is designated and deposited in the Mus{\'e}um national d{\textquoteright}Histoire naturelle in Paris.

}, keywords = {Amphidromous prawn, Indo-West Pacific, morphology, multi-locus phylogeny}, author = {Castelin, Magalie and de Mazancourt, Valentin and Marquet, G{\'e}rard and Zimmermann, Gabrielle and Philippe Keith} } @article {5020, title = {When molecules and morphology work together: lines of evidence for the validity of Caridina buehleri Roux (Crustacea :Decapoda : Atyidae) and for C. gueryi Marquet, Keith and Kalfatak as its junior synonym}, journal = {Invertebrate Systematics}, volume = {31}, year = {2017}, month = {01/2017}, pages = {220-230}, abstract = {

The taxonomy of the freshwater shrimps Caridina (Atyidae) is very complex and confused mostly because the morphological characters that have traditionally been used for species delimitation and identification are highly plastic. There is thus a need for an integrative approach to their taxonomy. In total, 42 specimens belonging to either Caridina buehleri Roux, 1934 or Caridina gueryi Marquet, Keith \& Kalfatak, 2009 were examined. We combined here morphological data from 12 specimens from the whole distributional range of the species, including type specimens with 16S mtDNA analyses from seven freshly sampled specimens, to verify the specific status of Caridina buehleri from Papua New-Guinea, Central Sulawesi, Western Samoa and the Solomon Islands, and C. gueryi from Vanuatu. The comparison of 24 morphological characters showed that morphological variations of character traits between C. gueryi and C. buehleri are widely overlapping and that no morphological feature can effectively split specimens into two clear groups. Molecular characters corroborated these results, as specimens from both groups were only separated by a 2\% p-distance, a genetic distance that is coherent with their potentially high dispersal abilities. We thus consider C. gueryi as a junior synonym of C. buehleri. Finally, C. buehleri is characterised mainly by a styliform and characteristically indented rostrum and a long stylocerite. Detailed re-descriptions of the type specimens of C. buehleri and C. gueryi are given, as well as their geographical and ecological distribution.

}, keywords = {16S., freshwater shrimp, Indo-Pacific, Integrative taxonomy}, author = {de Mazancourt, Valentin and Marquet, G{\'e}rard and Klotz, Werner and Philippe Keith and Castelin, Magalie} } @article {3486, title = {New Sicydiinae phylogeny (Teleostei: Gobioidei) inferred from mitochondrial and nuclear genes: insights on systematics and ancestral areas.}, journal = {Mol Phylogenet Evol}, volume = {70}, year = {2014}, month = {2014 Jan}, pages = {260-71}, abstract = {

The Sicydiinae subfamily (Teleostei: Gobioidei) is the biggest contributor to the diversity of fish communities in river systems of tropical islands. These species are found in the Indo-Pacific area, the Caribbean region and West Africa. They spawn in freshwater, their planktotrophic larvae drift downstream to the sea where they develop, before returning to the rivers to grow and reproduce. Hence, they are called amphidromous. Their phylogeny has been explored using a total of 3545 sites from 5 molecular markers (mitochondrial DNA: 16S rDNA, cytochrome oxidase I, cytochrome b; nuclear DNA: rhodopsin gene and a nuclear marker specially developed for this study, the interferon regulatory factor 2 binding protein 1-IRF2PB1). Sequences were obtained for 59 Sicydiinae specimens of 9 known genera. The Bayesian and maximum likelihood analyses support the monophyly of the subfamily as well as the monophylyof all genera except Sicydium, which is paraphyletic. Five major clades were identified within this subfamily. One clade contained the genus Stiphodon. Another clade contained Sicyopterus, Sicydium and Parasicydium with Sicyopterus as sister genus of Sicydium. The non-monophyly of Sicydium subclade, because it includes the monotypic genus Parasicydium, challenged the validity of Parasicydium genus. Ancestral area reconstruction showed that the subfamily emerged in the Central West Pacific region implying that previous hypotheses proposing a dispersal route for Sicydiinae into the Atlantic Ocean are unsupported by the present analysis. Our results suggest that the hypotheses for the dispersal route of the genus Sicydium should be reconsidered.

}, keywords = {Animals, Bayes Theorem, Cell Nucleus, Cytochromes b, DNA, Mitochondrial, DNA, Ribosomal, Electron Transport Complex IV, Evolution, Molecular, Female, Mitochondria, Perciformes, Phylogeny, Sequence Analysis, DNA}, issn = {1095-9513}, doi = {10.1016/j.ympev.2013.09.026}, author = {Taillebois, Laura and Castelin, Magalie and Clara Lord and Chabarria, Ryan and Dettai, Agn{\`e}s and Philippe Keith} }