Titre du document / Document title

Australian scallops do not recognise the introduced predatory seastar Asterias amurensis

Auteur(s) / Author(s)

HUTSON Kate S. ⁽¹⁾ ; ROSS D. Jeff ⁽¹⁾ ; DAY Rob W. ⁽¹⁾ ; AHERN John J. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Zoology, The University of Melbourne, Victoria 3010, AUSTRALIE

Résumé / Abstract

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.

Revue / Journal Title

Marine ecology. Progress series   ISSN 0171-8630 

Source / Source

2005, vol. 298, pp. 305-309 [5 page(s) (article)] (37 ref.)

Langue / Language

Anglais

Editeur / Publisher

Inter-Research, Oldendorf, ALLEMAGNE  (1979) (Revue)

Mots-clés anglais / English Keywords

Invertebrata ; Echinodermata ; Asteroidea ; Oceania ; Asterias amurensis ; Marine environment ; Predator ; Introduced species ; Australia ;

Mots-clés français / French Keywords

Invertebrata ; Echinodermata ; Asteroidea ; Océanie ; Asterias amurensis ; Milieu marin ; Prédateur ; Espèce introduite ; Australie ;

Mots-clés espagnols / Spanish Keywords

Invertebrata ; Echinodermata ; Asteroidea ; Oceania ; Asterias amurensis ; Medio marino ; Depredador ; Especie introducida ; Australia ;

Mots-clés d'auteur / Author Keywords

Predator recognition ; Escape response ; Introduced species ,Northern Pacific seastar ;

Localisation / Location

INIST-CNRS, Cote INIST : 18208, 35400013173415.0270