Biol Invasions https://doi.org/10.1007/s10530-018-1768-2 ORIGINAL PAPER Spatial distribution shifts in two temperate ﬁsh species associated to a newly-introduced tropical seaweed invasion . . . Josep Alo´s Elisabet Bujosa-Homar Jorge Terrados Fiona Tomas Received: 4 January 2018 / Accepted: 22 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract The establishment of non-native habitat- seaweed H. incrassata has led to the re-distribution of forming seaweeds into new areas may trigger impor- X. novacula, potentially by harbouring a greater tant changes in ecosystem functioning, yet their biodiversity of species at the base of the food-web community and ecosystem-level effects remain lar- through adding biogenic structure to an otherwise bare gely understudied. Here we studied the spatial distri- sediment. Our work demonstrates that non-native bution of two common ﬁsh species (Xyrichtys tropical habitat-forming species have the potential to novacula and Bothus podas) which are key compo- maintain or even enhance ﬁsh abundance in uncon- nents of communities in unconsolidated bottoms of solidated bottoms in temperate areas potentially temperate areas regarding the colonization of the altering the functioning of native habitats. newly-introduced tropical seaweed Halimeda incras- sata in the Mediterranean Sea. We used a spatially- Keywords Baited underwater cameras explicit before-after-control-impact
Biological Invasions – Springer Journals
Published: May 28, 2018
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