Russian Federation
UDK 574.52 Гидробионты, влияние на них гидрологического и гидрохимического режимов
According to the data of accounting trawl surveys conducted by TINRO in the period from the 1980s to 2018, changes in the spatial and bathymetric distribution of black halibut on the continental slope of the Sea of Okhotsk over the past decades have been considered. The sea ice cover had decreased in this period that caused a weakening of the slope convection, whereas this process ventilated the intermediate layer, so a deoxygenation occurred at the depths below 300-400 m where the halibut dwell. Upon the «cold» times with strong slope convection and high content of dissolved oxygen in the intermediate layer, dense pre-spawning and spawning aggregations of halibut were formed in the southern part of the Lebed Trough at the depth of 900-1000 m. These aggregations are not observed in the recent «warm» years, but the halibut are distributed widely along the continental slope of Kamchatka in aggregations with moderate or low density.
greenland halibut Reinhardtius hippoglossoides, fish distribution, spawning aggregation, deoxygenation, climate warming, Okhotsk Sea
1. Semenov Yu.K., Smirnov A.A., Yelatintseva Yu.A., Tkachenko A.A. (2020). Features of bottom fish fishing (halibut, stingrays, macruruses, cod, lycodes, long-finned shiposhchek) in 2019 in the North Okhotsk fishing subzone of the Sea of Okhotsk // Fisheries. No. 2. Pp. 43-50. (In Rus., abstract in Eng.).
2. Semenov Yu.K., Smirnov A.A. (2009).The state and prospects of fishing for black halibut (Reinhardtius hippoglossoides) in the northern part of the Sea of Okhotsk // Fishing issues. Vol. 10. No. 2 (38). Pp. 227-237. (In Rus., abstract in Eng.).
3. Kornev S.I., Belonovich O.A., Nikulin S.V. (2014). Killer whales (Orcinus orca) and fishing for black halibut (Reinhardtius hippoglossoides) in the Sea of Okhotsk // Investigation of aquatic biological resources of Kamchatka and the north-western Pacific Ocean. Issue 34. Pp. 35-50. (In Russ.)
4. Nikolenko L.P. (2010). Superstatistical losses of black halibut (Reinhardtius hippoglossoides), equal-nosed crab (Lithodes aequispina) and strigun crab (Chionoecetes angulatus) in deep-sea net and longline fisheries in the Sea of Okhotsk // Questions of fisheries. Vol. 11. No. 3 (43). Pp. 592-600. (In Rus., abstract in Eng.).
5. Smirnov A.A., Semenov Yu.K., Lachugin A.S. (2004). The influence of killer whales (Orcinus orca) on the net fishing of black halibut in the eastern part of the Sea of Okhotsk // Collection of scientific papers based on the materials of the third International conference "Marine mammals of the Holarctic", Koktebel, Crimea, Ukraine. Pp. 508-510. (In Russ.)
6. Kulik V.V., Glebov I.I., Aseeva N.L., Novikov R.N. (2022). Assessment of the state of the stock of black halibut (Reinhardtius hippoglossoides matsuurae) in the Sea of Okhotsk // Izvestiya TINRO. Vol. 202. Pp. 466-497. (In Rus., abstract in Eng.).
7. Volvenko I.V. (2011). Updated and supplemented database of pelagic trawling stations carried out in the Far Eastern seas and the North Pacific Ocean in 1979-2009. // Izvestiya TINRO. Vol. 164. Pp. 3-26. (In Rus., abstract in Eng.).
8. Volvenko I.V. (2014). A new database of bottom trawling stations carried out in the Far Eastern seas and the North Pacific Ocean in 1977-2010. // Izvestiya TINRO. T. 177. Pp. 3-24. DOI:https://doi.org/10.26428/1606-9919-2014-177-3-24. (In Rus., abstract in Eng.).
9. Zuenko Yu.I., Figurkin A.L., Matveev V.I. (2018). Modern changes in the production of intermediate waters in the Sea of Okhotsk and their indicators // Izvestiya TINRO. T. 193. Pp.190-210. (In Rus., abstract in Eng.).
10. Zuenko Yu.I., Aseeva N.L., Glebova S.Yu., Gostrenko L.M., Dubinina A.Yu., Dulepova E.P., Zolotov A.O., Loboda S.V., Lysenko A.V., Matveev V.I., Muktepavel L.S., Ovsyannikov E.E., Figurkin A.L., Shatilina T.A. (2019). Modern changes in the ecosystem of the Sea of Okhotsk (2008-2018) // Izvestiya TINRO. Vol. 197. Pp. 35-61. (In Rus., abstract in Eng.).
11. Zuenko Yu.I., Aseeva N.L., Matveev V.I. (2021). Bathymetric distribution of black halibut Reinhardtius hippoglossoides under conditions of deoxygenation of the intermediate layer of the Sea of Okhotsk / // Questions of fisheries. Vol. 22. No.2. Pp. 27-39. DOI:https://doi.org/10.36038/0234-2774-2021-22-2-27-39. (In Rus., abstract in Eng.).
12. Nikolenko L.P. (1998). Biology and fishery of the black halibut of the Sea of Okhotsk. Autoref. diss. ... cand. biol. sciences. Vladivostok: TINRO. 23 p. (In Russ.)
