Some Estimates of Population Density and Feeding Habits of the Rock Crab, Cancer irroratus, in a Kelp Bed in Nova Scotia
- 1 April 1982
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Fisheries and Aquatic Sciences
- Vol. 39 (4) , 636-639
- https://doi.org/10.1139/f82-090
Abstract
The population density of rock crabs (Cancer irroratus) in a kelp bed on the Atlantic coast of Nova Scotia was examined by mark–recapture techniques and found to be about one crab (> 45-mm carapace width) per 2 square metres. Prey taken by the crabs included hermit crabs (Pagurus), mussels (Mytilus), sea urchins (Strongylocentrotus), and various small crustaceans and polychaetes. It was concluded that the crab population would exert a strong predation pressure on these invertebrates.Key words: Cancer irroratus, rock crabs, predation, population density, kelpThis publication has 5 references indexed in Scilit:
- Relationship Between Destructive Grazing by the Sea Urchin, Strongylocentrotus droebachiensis, and the Abundance of American Lobster, Homarus americanus, on the Atlantic Coast of Nova ScotiaCanadian Journal of Fisheries and Aquatic Sciences, 1981
- The role of behavioral responses to predators in modifying urchins' (Strongylocentrotus droebachiensis) destructive grazing and seasonal foraging patternsMarine Biology, 1981
- The Estimation of Biological PopulationsThe Annals of Mathematical Statistics, 1954
- Inverse, Multiple and Sequential Sample CensusesBiometrics, 1952
- The Estimation of Total Fish Population of a LakeThe American Mathematical Monthly, 1938