Skip to content
DraconiticResearch
Search Sources API
186,631 studies31 sourcesUpdated 14 min ago
Peer-reviewedCC BYBioInvasions Records

An isolated introduction of the brush-clawed shore crab Hemigrapus takanoi Asakura & Watanabe, 2005 in Western Brittany (France)

  • Vincent Le Garrec
  • Thomas Burel
Open at sourcePDFDOICite

Abstract

We report a new French record of the introduced Varunid crab, Hemigrapsus takanoi Asakura & Watanabe, 2005, marking the first occurrence in Western Brittany, France.Specimens-including juveniles, ovigerous and non-ovigerous females, and males-conform to the species' descriptions.This population is approximately isolated by 250 km from the nearest known population, as confirmed by additional surveys along the Brittany coast.Collection stations were distant from ports but always near oyster farms, suggesting accidental introduction via oyster farming.This species known for its invasiveness has to be closely monitored in the forthcoming years as it could alter the functioning of native ecosystems and threaten local biodiversity.

Related

  1. Neanthes nubila (Quatrefages, 1865): a discrete polychaete in Brittany maerl beds and Zostera marina beds
    Vincent Le Garrec
    An Aod - Les cahiers naturalistes de l’Observatoire marinPeer-reviewedPublisher termsFull textEcologyEnvironmental science & pollutionHAL
  2. Scenery Evaluation of the Coast of Brittany (France)
    Alfredo Fernández-Enríquez, Giorgio Anfuso, Edna Hernández González
    EnvironmentsPeer-reviewedCC BY 4.0Full textEnvironmental science & pollutionHAL
  3. Between waste and value: A socio-material and political perspective on the blue bioeconomy in Brittany and Quebec
    Antoine Police, Juliette Daquin
    Environmental Science & PolicyPeer-reviewedCC BY 4.0Full text1 citedEnvironmental science & pollutionHAL
  4. Dating of Late Pleistocene sediments along the coast of Brittany (W France) by Optically Stimulated Luminescence, paleoclimate implications and Eemian highstand
    Carlos Arce-Chamorro, Guillaume Guérin, Pierre Dietrich +2
    Quaternary GeochronologyPeer-reviewedCC BY 4.0Full textGeology & geochemistryHAL
  5. Successful Rescue of a Juvenile Humpback Whale (Megaptera novaeangliae) Trapped Upstream of the Rance Tidal Power Station, Brittany, France
    Oihana Olhasque, Léanne Carpentier, Matthieu Duchemin +5
    AnimalsPeer-reviewedCC BY 4.0Full text1 citedEcologyZoology & animal behaviourHAL

Cite

BibTeXRIS
BibTeX
@article{garrec2026isolated,
  title = {{An isolated introduction of the brush-clawed shore crab Hemigrapus takanoi Asakura & Watanabe, 2005 in Western Brittany (France)}},
  author = {Vincent Le Garrec and Thomas Burel},
  journal = {BioInvasions Records},
  year = {2026},
  month = sep,
  doi = {10.3391/bir.2026.15.3.05},
  url = {https://hal.science/hal-05758485v1},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - An isolated introduction of the brush-clawed shore crab Hemigrapus takanoi Asakura & Watanabe, 2005 in Western Brittany (France)
AU  - Vincent Le Garrec
AU  - Thomas Burel
PY  - 2026
DA  - 2026/09/22
JO  - BioInvasions Records
DO  - 10.3391/bir.2026.15.3.05
UR  - https://hal.science/hal-05758485v1
AB  - We report a new French record of the introduced Varunid crab, Hemigrapsus takanoi Asakura & Watanabe, 2005, marking the first occurrence in Western Brittany, France.Specimens-including juveniles, ovigerous and non-ovigerous females, and males-conform to the species' descriptions.This population is approximately isolated by 250 km from the nearest known population, as confirmed by additional surveys along the Brittany coast.Collection stations were distant from ports but always near oyster farms, suggesting accidental introduction via oyster farming.This species known for its invasiveness has to be closely monitored in the forthcoming years as it could alter the functioning of native ecosystems and threaten local biodiversity.
SN  - 2242-1300
ER  -