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Line setters are used with integrated weight (IW) (50 g m–1 lead core) longlines by some autoline vessels in the Kerguelen and Crozet Islands Patagonian toothfish (Dissostichus eleginoides) fisheries to deter seabirds, ostensibly by expediting gear sink rates.
Longline fisheries have been responsible for the deaths of large numbers of seabirds worldwide. Two of the most difficult seabird species to deter from baited hooks are the whitechinned … petrel (Procellaria aequinoctialis) 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…
Increases in the anthropogenic CO2 inventory for Southern Ocean waters to the south of Australia were estimated by comparing measurements made 28 years apart in 1968 and 1996. For this period…