Study

Seabird mortality at trawler warp cables and a proposed mitigation measure: a case of study in Golfo San Jorge, Patagonia, Argentina

  • Published source details González-Zevallos D., Yorio P. & Caille G. (2007) Seabird mortality at trawler warp cables and a proposed mitigation measure: a case of study in Golfo San Jorge, Patagonia, Argentina. Biological Conservation, 136, 108-116.

Actions

This study is summarised as evidence for the following.

Action Category

Mark trawler warp cables to reduce seabird collisions

Action Link
Bird Conservation
  1. Mark trawler warp cables to reduce seabird collisions

    A replicated and controlled study in Golfo San Jorge, Argentina between December 2004 and April 2005 (González-Zevallos et al. 2007) found that there were significantly fewer seabird collisions with warp cables during net-hauling activities (and cable-related mortality was nil) when an orange-coloured plastic traffic cone was attached to each cable (average of 5.4 contacts/haul and no mortalities in 12 hauls) compared with when cones were not used (average of 58.5 contacts/haul and a total of 11 mortalities in ten hauls). Trials were on three commercial trawlers using cones 1 m long and 20-10 cm in diameter. Mortalities were eight kelp gulls Larus dominicanus and three black-browed albatross Thalassarche melanophrys.

     

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