Mortality and longevity in the whelk  Dicathais orbita  (Gmelin)

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1974 English Publisher:CSIRO PublishingJournal:Australian Journal of Marine and Freshwater Research, volume 25, pages 25-33 (issn: 0067-1940,

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Authors: BF Phillips; NA Campbell;

doi: 10.1071/mf9740025

Mortality and longevity in the whelk Dicathais orbita (Gmelin)

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Abstract

A population of the whelk Dicathais orbita (Gmelin) at Fish-Hook Bay, Rottnest Island, in Western Australia, was found to have a high annual mortality and hence a low average life expectancy. A longevity of 19 years has been estimated but the average life expectancy is not more than 5 years. The mortality rate of the animals on the reef platforms (1-S = 0.46; M = 0.62) was found to be independent of age. A life table for D. orbita is presented and discussed, and these data compared with data on some other predatory gastropods.

8 Research products, page 1 of 1

Histomorphology of the hypobranchial gland in Dicathais orbita (Gmelin, 1791) (Neogastropoda: Muricidae)
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