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A condition assessment and handling guideline for skate (Rajiforms) by-catch in longline fisheries: Lessons from the Southern Indian Ocean CCAMLR Working Group on Fish Stock Assessment, Hobart, Australia, 10 to 20 October 2022, 2022 (Ref: 16947)
Category 2: International meeting papers

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.

An experimental assessment of factors affecting the sink rates of spanish-rig longlines to minimize impacts on seabirds Aquatic Conservation: Marine and Freshwater Ecosystems, 2008 (Ref: 13304)
Category 1: Peer-reviewed literature

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.

A global assessment of the impact of fisheries-related mortality on shy and white-capped albatrosses: Conservation implications Biological Conservation, 2007 (Ref: 12934)
Category 1: Peer-reviewed literature

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…

Fast sinking (integrated weight) longlines reduce mortality of white-chinned petrels (Procellaria aequinoctialis) and sooty shearwaters (Puffinus griseus) in demersal longline fisheries. Biological Conservation, 2006 (Ref: 12713)
Category 1: Peer-reviewed literature

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).

Biomass of Antarctic krill in the Scotia Sea in January/February 2000 and its use in revising an estimate of precautionary yield. Deep-Sea Research II, 2004 (Ref: 12426)
Category 1: Peer-reviewed literature

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…

Variation in the biomass density and demography of Antarctic krill in the vicinity of the South Shetland Islands during the 1999/2000 austral summer. Deep-Sea Research II, 2004 (Ref: 12424)
Category 1: Peer-reviewed literature

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 effectiveness of integrated weight (fast sinking) longlines in reducing mortality of white-chinned petrels and sooty shearwaters in the New Zealand Ling longline fishery. Third International Albatross and Petrel Conference, 23-27 August 2004, Montevideo, Uruguay., 2004 (Ref: 11661)
Category 3: Verbal presentation

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…

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