Estimates of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999–2001

摘要: The incidental mortality of albatrosses Diomedeidae and petrels Procellariidae by longline fishing vessels, has been assessed analysed in several areas the globe. We provide first direct estimates rates along Argentine Shelf shelf break. estimated by-catch rate for whole period (1999-2001) was 0.04 birds/1,000 hooks, with a maximum 0.20 hooks observed 1999. Annual captures averaged 1,160 birds; however, large variation indicates that annual may be order thousands, around 10,000 seabirds being killed longliners through study period. Most were Patagonian At least 12 bird species incidentally taken, Black-browed Albatrosses Thalassarche melanophris White-chinned Petrels Procellaria aequinoctialis accounting about 80% total captures. information provided this allowed design future implementation mitigation measures new survey methods onboard operating Atlantic waters on shelf.