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Poorer diversity but tougher species in old ballast water: biosecurity challenges explored from visual and molecular techniques
Ardura, A.; Martinez, J.L.; Zaiko, A.; Garcia-Vazquez, E. (2021). Poorer diversity but tougher species in old ballast water: biosecurity challenges explored from visual and molecular techniques. Mar. Pollut. Bull. 168: 112465. https://dx.doi.org/10.1016/j.marpolbul.2021.112465
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
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| Author keywords |
Ballast water age, Molecular techniques, Taxonomical identification, Nuisance species, Risk assessment |
| Auteurs | | Top |
- Ardura, A.
- Martinez, J.L.
- Zaiko, A.
- Garcia-Vazquez, E., meer
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| Abstract |
Millions of tons of water cross the oceans inside ships' ballast tanks every day. Planktonic species hitch-hike with water and some may pose risks to ecosystems and economies if get released and establish outside their native range. We monitored ballast water in different trans-equatorial travels, visually and using molecular techniques, and found significant increases of potential nuisance taxa over travel duration, despite evident diversity depletion. Thus, less diverse but more resistant and potentially more harmful communities persist in ballast water over long voyages. If we consider the enormous volume transported every day, the persistence of resistant species in ballast water would be threating the global marine biodiversity. This should be taken into account when modeling and assessing the bioinvasion risks associated with the ballast water and transfer considered in the future research. |
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