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Gastropod predation patterns in Pliocene and Recent pectinid bivalves from Antarctica and New Zealand

Jonkers, H.A.. 2000 Gastropod predation patterns in Pliocene and Recent pectinid bivalves from Antarctica and New Zealand. New Zealand Journal of Geology and Geophysics, 43 (2). 247-254. 10.1080/00288306.2000.9514884

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Abstract/Summary

Boreholes in the large, extinct Antarctic Neogene pectinid Zygochlamys anderssoni suggest that this scallop was preyed upon by a large predatory muricid gastropod impossibly a Trophon species). The holes occur in mature individuals, which contrasts with the situation in modern Zygochlamys delicatula from New Zealand, where gastropod predation is apparently restricted to juveniles only. This difference is ascribed to dissimilarities in the lifestyles of these scallops; whereas the former was probably byssally attached throughout ontogeny, adults of the latter become tree living after an initial period of byssal attachment. During the late Pliocene, a change towards higher motility in Chlamys‐like pectinids of the Southern Ocean may have caused the loss of an important food source for the larger muricids.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1080/00288306.2000.9514884
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 0028-8306
Additional Keywords: Antarctica, New Zealand, gastropod predation, Pectinidae, Muricidae
Date made live: 28 Nov 2012 11:12
URI: http://nora.nerc.ac.uk/id/eprint/20610

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