Abstract
The research was carried out in October – December 2022 in the Pacific waters of Kamchatka and the Northern Kuril Islands on aboard medium-tonnage trawler fishing for pollock. We counted seabirds on line transects and in near-vessel aggregations. A total of 28 species were recorded, mainly larids and alcids. The density of bird distribution in the surveyed seawater area was 25.8 birds/km2 on average. Among them alcids (58.6%) and procellariids (27.4%) predominated. Most of the tubenoses and larids (15 species) wandering in the fishing areas were concentrated near the trawler, where they fed on catch processing waste. The most abundant were the northern fulmar and short-tailed shearwater, whose numbers reached 20 and 5 thousand individuals, respectively. The size of the near-vessel aggregations varied significantly during the fishing period. The population of seabirds had a transitional character, as it consisted of resident species that still continued to stay in the nesting areas, as well as transiting and arriving here for the winter from other regions.
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