
TY  - JOUR
A1  - Phillips, BF 
A1  - Campbell, NA 
T1  - Mortality and longevity in the whelk <I>Dicathais orbita</I> (Gmelin)
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 1974
VL  - 25
IS  - 1
SP  - 25
EP  - 33
KW  - 
UR  - https://doi.org/10.1071/MF9740025 
N2  - 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. 
ER  -

