Russian Journal of Marine Biology

, Volume 44, Issue 7, pp 592–597 | Cite as

Seabird Aggregation around Vessels during the Winter Trawl Fishery for Walleye Pollock in the Sea of Okhotsk

  • Yu. B. ArtukhinEmail author


The observations conducted during the Walleye Pollock expedition to the Sea of Okhotsk in January–April 2015 showed that various seabird species (at least 12) aggregate permanently around trawlers in the Sea of Okhotsk. The birds are attracted by fish-processing waste. The quantitative and species composition of aggregations is dynamic. The richest of these in terms of number of species and the most abundant (up to 23 000 individuals around one vessel at a time) are formed in the Kamchatka–Kuril subzone, where numerous overwintering birds arrive from adjacent ocean waters. The Northern Fulmar accounts for a major part of the aggregation (68.9% of all birds); this bird dominates most of the fishery areas. The second most-abundant group of species is large white-headed gulls of the genus Larus (31.0%), mainly the Slaty-backed Gull. In general, the pollock trawl fishery is regarded as an influential factor that causes large overwintering grounds of seabirds to form in the Sea of Okhotsk. Fish-processing waste disposed overboard supports a huge bird community by providing a stable food supply during the harsh season.


seabird aggregation around vessel trawl fishery Walleye Pollock Sea of Okhotsk 



The author is grateful to the Non-Commercial Organization Assotsiatsiya Dobytchikov Mintaya (“Pollock Catchers Association”) for the opportunity to conduct research, as well as to the administration of the OAO Okeanrybflot company and the crew of the BMRTMoskovskaya Olimpiada freezer trawler for providing logistical support during embarking and observations at sea.


  1. 1.
    Artukhin, Yu.B., New data on the bird populations of the Sea of Okhotsk in winter, Tezisy dokl. 16 mezhdunar. nauchn. konf., posvyashch. 20-letiyu obraz. prir. parkov na Kamchatke “Sokhranenie bioraznoobraziya Kamchatki i prilegayushchikh morei” (Abstracts 16th Int. Sci. Conf. Dedicated 20th Anniv. Found. Nat. Parks Kamchatka “Conservation of Biodiversity of Kamchatka and Coastal Waters”), Petropavlovsk-Kamchatsky: Kamchatpress, 2015, pp. 219–222.Google Scholar
  2. 2.
    Artukhin, Yu.B. and Utkin, D.Yu., On the question of the residence status of Thayer’s Gull Larus thayeri and Iceland Gull Larus glaucoides in the Russian Far East, Russ. J. Ornithol., 2012, vol. 21, no. 758, pp. 1148–1153.Google Scholar
  3. 3.
    Trukhin, A.M. and Kosygin, G.M., Distribution of seabirds on the ice of the Sea of Okhotsk in the winter season, Morskiye ptitsy Dal’nego Vostoka (Seabirds of the Far East), Vladivostok: Dal’nevost. Nauchn. Tsentr Akad. Nauk SSSR, 1986, pp. 48–56.Google Scholar
  4. 4.
    Shuntov, V.P., Ptitsy dal’nevostochnykh morei Rossii (Birds of the Far Eastern Seas of Russia), Vladivostok: TINRO-Tsentr, 1998, vol 1.Google Scholar
  5. 5.
    Divoky, G.J., The pelagic feeding habits of Ivory and Ross’ gulls, Condor, 1976, vol. 78, no. 1, pp. 85–90.CrossRefGoogle Scholar
  6. 6.
    O’Boyle, R., Japp, D., Payne, A., and Devitt, S., Russian Sea of Okhotsk Mid-Water Trawl Walleye Pollock (Theragra chalcogramma) Fishery: Public Certification Report, Derby, U.K.: Intertek Moody Marine, 2013.Google Scholar
  7. 7.
    Orben, R.A., Irons, D.B., Paredes, R., et al., North or south? Niche separation of endemic red-legged kittiwakes and sympatric black-legged kittiwakes during their non-breeding migrations, J. Biogeogr., 2015, vol. 42, no. 2, pp. 401–412. doi 10.1111/jbi.12425CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Kamchatka Branch, Pacific Geographical Institute, Far East Branch, Russian Academy of SciencesPetropavlovsk-KamchatskyRussia

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