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Spiny lobsters prefer native prey over range-extending invasive urchins
Citation
Smith, JE and Keane, J and Mundy, C and Gardner, C and Oellermann, M, Spiny lobsters prefer native prey over range-extending invasive urchins, ICES Journal of Marine Science, 79, (4) pp. 1353-1362. ISSN 1054-3139 (2022) [Refereed Article]
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Copyright Statement
© The Author(s) 2022. Published by Oxford University Press on behalf of International Council for the Exploration of the Sea. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
DOI: doi:10.1093/icesjms/fsac058
Abstract
Climate change increases the need to control range-extending species, which adversely impact their recipient ecosystem. Increasing populations of resident predators may be effective to counter such range-extension, but only if they consume the novel invaders at sufficient rates. In South-East Australia, poleward range-extending Longspined Sea Urchins (Centrostephanus rodgersii) are causing catastrophic ecological habitat transition to extensive urchin barrens. Tasmanian native Southern Rock Lobster (Jasus edwardsii) is a potential predator that could control further urchin expansion. Experimental feeding trials showed that range-extending Longspined Sea Urchins are the least preferred prey choice for Southern Rock Lobsters (3.8% predation events), when compared to three local species: abalone, urchins, and snails (36.6, 32.6, and 27%). Interestingly, habitat origin and naivete of lobsters to urchins affected urchin consumption with 85% being consumed by lobsters originating from urchin barrens. Low predation rates on Longspined Sea Urchin suggest that resident lobsters are unlikely to control further barren expansion unless a behavioural shift occurs. Results imply that potential control of Longspined Sea Urchins by Southern Rock Lobsters has previously been overestimated. Additional control methods are needed to safeguard ecological communities and important commercial stocks from this climate change-induced, range-extending pest species.
Item Details
Item Type: | Refereed Article |
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Keywords: | naive predator, non-native prey, predator-prey, range shift, rock lobster, species redistribution, Tasmania, urchin barrens |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Fisheries management |
Objective Division: | Environmental Management |
Objective Group: | Marine systems and management |
Objective Field: | Control of pests, diseases and exotic species in marine environments |
UTAS Author: | Smith, JE (Miss Jennifer Smith) |
UTAS Author: | Keane, J (Dr John Keane) |
UTAS Author: | Mundy, C (Dr Craig Mundy) |
UTAS Author: | Gardner, C (Professor Caleb Gardner) |
UTAS Author: | Oellermann, M (Dr Michael Oellermann) |
ID Code: | 150372 |
Year Published: | 2022 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2022-06-09 |
Last Modified: | 2022-11-02 |
Downloads: | 6 View Download Statistics |
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