RT Journal Article
T1 Phylogeography of the insular populations of common octopus, Octopus vulgaris Cuvier, 1797, in the Atlantic Macaronesia
A1 Quinteiro Vázquez, Javier
A1 Rodríguez Castro, Jorge
A1 Rey Méndez, Manuel
A1 González Henríquez, Nieves
K1 Haplogroups
K1 Phylogeography
K1 Haplotypes
K1 Octopus
K1 Canaries
K1 Population genetics
K1 Mitochondria
K1 Species diversity
AB Exploited, understudied populations of the common octopus, Octopus vulgaris Cuvier, 1797, occur in the northeastern Atlantic (NEA) throughout Macaronesia, comprising the Azores, Madeira and Canaries, and also the Cabo Verde archipelago. This octopus species, found from the intertidal to shallow continental-shelf waters, is largely sedentary, and the subject of intense, frequently unregulated fishing effort. We infer connectivity among insular populations of this octopus. Mitochondrial control region and COX1 sequence datasets reveal two highly divergent haplogroups (α and β) at similar frequencies, with opposing clinal distributions along the sampled latitudinal range. Haplogroups have different demographic and phylogeographic patterns, with origins related to the two last glacial maxima. FST values suggest a significant differentiation for most pairwise comparisons, including insular and continental samples, from the Galicia and Morocco coasts, with the exception of pairwise comparisons for samples from Madeira and the Canaries populations. Results indicate the existence of genetically differentiated octopus populations throughout the NEA. This emphasizes the importance of regulations by autonomous regional governments of the Azores, Madeira and the Canaries, for appropriate management of insular octopus stocks
PB Plos
YR 2020
FD 2020
LK http://hdl.handle.net/10347/23401
UL http://hdl.handle.net/10347/23401
LA eng
NO Quinteiro J, Rodríguez-Castro J, Rey-Méndez M, González-Henríquez N (2020) Phylogeography of the insular populations of common octopus, Octopus vulgaris Cuvier, 1797, in the Atlantic Macaronesia. PLoS ONE 15(3): e0230294. https://doi.org/10.1371/journal.pone.0230294
NO This work was supported by the BANCOMAC (European Community Initiative INTERREG IIIB) and BANGEN projects (MAC Interreg Territorial Cooperation Programme “Madeira, Azores and Canary Islands”)
DS Minerva
RD 3 may 2026