Shark predation on sable island seals

2020-01-20 04:07

Hunting patterns and geographic profiling of white shark predation. Journal of Zoology, 279: . Hammerschlag N, Martin RA, Fallows C. (2006). Effects of environmental conditions on predatorprey interactions between white sharks (Carcharodon carcharias) and Cape fur seals (Arctocephalus pusillus pusillus) at Seal Island, South Africa.Two shark species involved in predation on seals at Sable Island, Nova Scotia, Canada. Proceedings of the Nova Scotian Institute of Science 45(2): 6488. Summary (ZL): Between 1993 and 2001, 4906 seal corpses bearing wounds likely inflicted by sharks were examined on Sable Island. shark predation on sable island seals

Flesh wounds on seal corpses indicated that two or more shark species prey on seals in waters around Sable Island. Wounds were categorized as either slash or corkscrew, with different predators

Shark predators. During our Sable Island walks, we were surprised to see seal carcasses and placentas on the sand. They were evidence of the cycle of life. Gulls scavenge them for food. The rest decays into lifegiving nutrients. Although some seals died from natural causes, others died from shark In these studies, grey seals were not initially identified as the predator (and as of early 2015, they are still not), although Sable Island is home to the world's largest grey seal colony, with ashark predation on sable island seals Unusual 'corkscrew' bite wounds on dead seals suggest that the Greenland shark is probably responsible for most attacks here. Several large bird colonies are resident, including the Arctic tern and Ipswich sparrow, Sable Island, Nova Scotia: Time zone: AST (UTC04: 00)

Grey seal (Halichoerus grypus) predation on harbour seals (Phoca vitulina) on the island of For example the lesions described in cases of presumed shark predation on harbour and grey seals around Sable Island (Lucas and Natanson, 2010, L. J. NatansonTwo shark species involved in predation on seals at Sable Island, Nova Scotia. Canada. shark predation on sable island seals TWO SHARK SPECIES INVOLVED IN PREDATION ON SEALS 65 suspected (Popov 1982). Shark predation on seals near Sable Island was reported by Brodie& Beck (1983) and Lucas& Stobo (2000), however the shark species involved were not identified. Sable Island, located at President, Sable Island Institute. she began working on Sable Island as a volunteer cook and field assistant with a Dalhousie University seal research team, and after a few seasons continued on the island as managertechnician for the terrain restoration program. and shark predation on seals. Longterm projects include research on the 1983) have observed shark predation on all ve species in the Sable Island area, the harbour seal population has the greatest proportion of observed sharkinicted mortality on pups and adults. Earlier studies indicated that shark predation on Sable Island harbour seals was only occasionally high, and primarily on pups (Boulva& McLaren, 1979; The islandfamous for its population of wild horsesis a breeding and pupping ground for harbour seals, and is now home to the worlds largest grey seal breeding colony. Prior to the early 1990s, shark predation on seals near Sable Island was sporadic.

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