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South Georgia (540S; 380W) lies 350 km south of the Polar Front in the south-west Atlantic Ocean. It is a key global location for albatrosses: at the last all-island census in 1986, it was estimated that approximately 92,500 pairs of grey-headed albatrosses (most important global site), 101…
Black-browed and grey-headed albatrosses breed at four known locations in Chile: Islas Diego de Almagro, Islote Evangelistas, Islas Ildefonso and Islas Diego Ramirez.
Three species of burrowing seabirds nest on the Diego Ramirez Islands (60 nautical miles south-west of Cape Horn): blue petrels (Halobaena caerulea), common diving petrels (Pelecanoides urinatrix) and sooty shearwater (Puffinus griseus).
The most difficult seabirds in the world to deter from baited hooks are white-chinned petrels, grey petrels and the shearwaters. A fundamental principle of seabird-friendly longlines is that they commence sinking immediately upon deployment and sink fast. Longlines with integrated weight…
Black-browed albatrosses breed at four known locations in Chile: Diego de Almagro (15,900 pairs, Lawton et al. 2003), Evangelistas (4,700; Arata et al. 2003), Ildefonso (47,000; this presentation) and Diego Ramirez (55,300; Robertson et al. unpublished). After the Falkland Islands/Islas Malvinas…
Bycatch of seabirds during longline fishing operations is listed under Australian legislation as a key threatening process which could endanger 14 species of seabirds. In 1998 a Threat Abatement Plan (TAP) was finalised to manage this threat.
Chile is a fishery country with important artisanal and industrial longline fleets during the last 30 year. Main fishing resources in southern Chile are Patagonian toothfish, Ling and Austral hake. All these fisheries are suspected to have high seabird mortality.