Seabird mortality at trawler warp cables and a proposed mitigation measure: a case of study in Golfo San Jorge, Patagonia, Argentina
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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.
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.
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Mark trawler warp cables to reduce seabird collisions Action Link |
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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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