Resumen

SECO PON, Juan Pablo  y  FAVERO, Marco. The Olrog's Gull (Larus atlanticus) attending high-seas trawlers during the breeding season. Hornero [online]. 2011, vol.26, n.2, pp.105-109. ISSN 0073-3407.

We report sightings of the Olrog's Gull (Larus atlanticus) obtained during observations of the interaction between commercial high-seas trawl fisheries and seabirds off Argentina. In late spring 2009, up to eight individuals (both adult and sub-adult birds) were noted feeding on fishery discard of an ice-trawler operating in waters relative close to the El Rincón estuary, southeast Buenos Aires Province. This is the first record of Olrog's Gull exploiting discards from high-seas fisheries 120 nautical miles off the coastline during the breeding season.

Palabras clave : El Rincón estuary; Fishery discards; High-seas trawlers; Larus atlanticus; Olrog's Gull.

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