Submarine canyons as important habitat for cetaceans, with special reference to the Gully: A review

摘要: There has been much research interest in the use of submarine canyons by cetaceans, particularly beaked whales (family Ziphiidae), which appear to be especially attracted canyon habitats some areas. However, not all are associated with large numbers cetaceans and mechanisms through may attract clearly understood. This paper reviews cetacean associations that have anecdotally described or presented scientific literature discusses physical, oceanographic biological lead enhanced abundance around these canyons. Particular attention is paid Gully, a Marine Protected Area off eastern Canada for there exists strongest evidence available as important habitat. Studies demonstrating increased Gully processes likely this relatively well-studied discussed. review provides limited more associate larger canyons; however, further studies needed fully understand relationship between physical characteristics abundance. In general, toothed (especially sperm whales) exhibit canyons, occurring features throughout year concentrating aggregating processes. By contrast, baleen tend occur seasonally most enrichment Existing thus suggests at least foraging areas should given special consideration conservation protection.