@article{fdi:010092255,
  title = {{A}quatic biodiversity on {R}eunion {I}sland : responses of biological communities to environmental and anthropogenic pressures using environmental {DNA}},
  author = {{J}annel, {L}. {A}. and {V}alade, {P}. and {C}habanet, {P}ascale and {J}ourand, {P}hilippe},
  editor = {},
  language = {{ENG}},
  abstract = {{I}sland ecosystems, characterized by isolation and vulnerability, are subject to natural and human-induced pressures. {R}apid and effective biodiversity monitoring is crucial for tracking these impacts and adapting conservation efforts. {T}his study focuses on {R}eunion {I}sland ({S}outh-{W}est {I}ndian {O}cean), where aquatic biodiversity is threatened by habitat loss, invasive species, and climate change. {S}tressors, both environmental and human-caused, can affect aquatic community structures. {T}o test this hypothesis, a comprehensive dataset was compiled from various aquatic habitats, including rivers, ponds, reefs, and coastal waters. {B}iodiversity data for bacteria, diatoms, invertebrates, and fish were collected using e{DNA} metabarcoding, while environmental and anthropogenic parameters were recorded through field measurements and local databases. {R}edundancy analysis was used to identify the spatial distribution patterns of aquatic communities and their variations in response to these parameters. {R}esults showed a significant distinction between freshwater and marine communities, with rivers and ponds hosting fewer taxa than marine environments, reflecting unique ecological patterns. {I}n freshwater systems, fish and invertebrate communities are significantly driven by conductivity, temperature, and metals such as arsenic and barium, while diatoms and bacteria are primarily influenced by oxygen levels, atrazine, and perfluorooctanesulfonate. {I}n marine environments, community composition is primarily affected by turbidity and conductivity. {T}his study demonstrated that e{DNA} methods are effective for routine monitoring of large taxonomic groups, enabling the detection of biodiversity changes related to water chemistry in watersheds. {T}hese approaches, commonly used on continents, are also effective in monitoring biodiversity on tropical islands threatened by human activities.},
  keywords = {{A}quatic communities ; e{DNA} ; {B}ioindicators ; {F}reshwater ecosystem ; {M}arine ecosystem ; {T}ropical island ; {REUNION}},
  booktitle = {},
  journal = {{A}quatic {E}cology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[29 p.]},
  ISSN = {1386-2588},
  year = {2024},
  DOI = {10.1007/s10452-024-10168-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092255},
}