Do low oxygen environments facilitate marine invasions? Relative tolerance of native and invasive species to low oxygen conditions

Lagos, Marcelo E. , Barneche, Diego R. , White, Craig R. and Marshall, Dustin J. (2017) Do low oxygen environments facilitate marine invasions? Relative tolerance of native and invasive species to low oxygen conditions. Global Change Biology, 23 6: 2321-2330. doi:10.1111/gcb.13668


Author Lagos, Marcelo E.
Barneche, Diego R.
White, Craig R.
Marshall, Dustin J.
Title Do low oxygen environments facilitate marine invasions? Relative tolerance of native and invasive species to low oxygen conditions
Journal name Global Change Biology   Check publisher's open access policy
ISSN 1365-2486
1354-1013
Publication date 2017-04-01
Sub-type Article (original research)
DOI 10.1111/gcb.13668
Open Access Status Not yet assessed
Volume 23
Issue 6
Start page 2321
End page 2330
Total pages 10
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Abstract Biological invasions are one of the biggest threats to global biodiversity. Marine artificial structures are proliferating worldwide and provide a haven for marine invasive species. Such structures disrupt local hydrodynamics, which can lead to the formation of oxygen-depleted microsites. The extent to which native fauna can cope with such low oxygen conditions, and whether invasive species, long associated with artificial structures in flow-restricted habitats, have adapted to these conditions remains unclear. We measured water flow and oxygen availability in marinas and piers at the scales relevant to sessile marine invertebrates (mm). We then measured the capacity of invasive and native marine invertebrates to maintain metabolic rates under decreasing levels of oxygen using standard laboratory assays. We found that marinas reduce water flow relative to piers, and that local oxygen levels can be zero in low flow conditions. We also found that for species with erect growth forms, invasive species can tolerate much lower levels of oxygen relative to native species. Integrating the field and laboratory data showed that up to 30% of available microhabitats within low flow environments are physiologically stressful for native species, while only 18% of the same habitat is physiologically stressful for invasive species. These results suggest that invasive species have adapted to low oxygen habitats associated with manmade habitats, and artificial structures may be creating niche opportunities for invasive species.
Keyword Artificial structures
Exploitative competition
Invasions
Low flow
Low oxygen
Marinas
Nonindigenous species
Sessile organisms
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Biological Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 25 Apr 2017, 00:26:36 EST by Web Cron on behalf of Learning and Research Services (UQ Library)