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<p>Nighttime illumination of fishing vessels is a significant source of ecological light pollution. Attracted to artificial lighting and fish offal, seabirds collide with the superstructure of commercial fishing vessels resulting in accidental seabird mortalities. We assessed the scale of seabird mortalities caused by vessel lighting in the large-scale winter trawl fisheries for walleye pollock (<i>Gadus chalcogrammus</i>) in the Sea of Okhotsk during the 2015 and 2020 seasons. The extrapolated light-induced seabird mortality across the large-tonnage vessel fleet that represents the backbone of the trawl fleet was at least 5058 individual seabirds (95% CI: 4930–9409). This estimate included 4561 northern fulmars (<i>Fulmarus glacialis</i>), 456 fork-tailed storm petrels (<i>Hydrobates furcatus</i>), and 41 least auklets (<i>Aethia pusilla</i>). The number of birds killed during the winter fishing season of 2015 did not exceed the first tenths of a percent of the Sea of Okhotsk population for each species.</p>

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Light-induced mortality of seabirds during the winter trawl fishery for pollock in the Sea of Okhotsk

  • 期刊论文

  • 发表日期：

    2026年2月6日

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  • Yuri B. Artukhin

摘要

Nighttime illumination of fishing vessels is a significant source of ecological light pollution. Attracted to artificial lighting and fish offal, seabirds collide with the superstructure of commercial fishing vessels resulting in accidental seabird mortalities. We assessed the scale of seabird mortalities caused by vessel lighting in the large-scale winter trawl fisheries for walleye pollock (Gadus chalcogrammus) in the Sea of Okhotsk during the 2015 and 2020 seasons. The extrapolated light-induced seabird mortality across the large-tonnage vessel fleet that represents the backbone of the trawl fleet was at least 5058 individual seabirds (95% CI: 4930–9409). This estimate included 4561 northern fulmars (Fulmarus glacialis), 456 fork-tailed storm petrels (Hydrobates furcatus), and 41 least auklets (Aethia pusilla). The number of birds killed during the winter fishing season of 2015 did not exceed the first tenths of a percent of the Sea of Okhotsk population for each species.