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Elasmobranchs (sharks, skates and rays) are among the least productive fish species, which make their populations vulnerable to increased mortality. Although skates exhibit elevated vulnerability to fishing, they are commonly caught as incidental bycatch in demersal fisheries.
The Spanish system of longline fishing is used in a range of demersal and semi-pelagic fisheries … throughout the southern hemisphere and has been the source of a large number of seabird fatalities.
Hundreds of thousands of seabirds are killed each year as a result of interacting with longline … and trawl fishing operations, and the severity of the impact varies regionally. Shy and whitecapped … albatrosses, Thalassarche cauta and Thalassarche steadi respectively…
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).
During January and February 2000 four research vessels, from Russia, the UK, Japan, and the United States…
In January and February 2000, a collaborative survey designed to assess the biomass of Antarctic krill across the … Scotia Sea was conducted aboard research vessels from Japan, Russia, the UK and the USA using active acoustic and … net sampling. Survey design, sampling protocols…
Vessels from Japan, Peru, and the USA conducted four sequential surveys designed to estimate the biomass density … and demography of Antarctic krill in the vicinity of the South Shetland Islands between late December 1999 and early … March 2000.
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…