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Australian scallops do not recognise the introduced predatory seastar Asterias amurensis

journal contribution
posted on 2023-05-16, 18:51 authored by Hutson, KS, Donald RossDonald Ross, Day, RW, Ahern, JJ
Escape responses of Australian scallops (Pecten fumatus and Chlamys asperrima) to native and introduced predatory seastars were compared in laboratory and field trials. The native seastar Coscinasterias muricata elicited an almost immediate escape response by scallops in all trials. In contrast, there was a low frequency of escape response exhibited by scallops when held in contact with the introduced seastar Asterias amurensis. These results are consistent with the hypothesis that escape response in invertebrates has evolved relative to predation risk. The absence of predator recognition in marine invertebrates may have serious implications for wild and farmed populations in southern Australia where introduced predators are prevalent. © Inter-Research 2005.

History

Publication title

Marine Ecology Progress Series

Volume

298

Issue

August

Pagination

305-309

ISSN

0171-8630

Department/School

Institute for Marine and Antarctic Studies

Publisher

Inter-Research

Place of publication

Germany

Repository Status

  • Restricted

Socio-economic Objectives

Coastal or estuarine biodiversity

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