Open Access Repository

Australian scallops do not recognise the introduced predatory seastar Asterias amurensis


Downloads per month over past year

Hutson, KS, Ross, DJ, Day, RW and Ahern, JJ 2005 , 'Australian scallops do not recognise the introduced predatory seastar Asterias amurensis' , Marine Ecology Progress Series, vol. 298 , pp. 305-309 , doi: 10.3354/MEPS298305.

[img] PDF
Escape_response...pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.


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.

Item Type: Article
Authors/Creators:Hutson, KS and Ross, DJ and Day, RW and Ahern, JJ
Keywords: Predator recognition · Escape response · Introduced species · Northern Pacific seastar
Journal or Publication Title: Marine Ecology Progress Series
ISSN: 0171-8630
DOI / ID Number: 10.3354/MEPS298305
Additional Information:

Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page