Development of approaches to regulation of flatfish fishery in the West Bering Sea zone
https://doi.org/10.15853/2072-8212.2023.68.70-89
Abstract
It is demonstrated based on results of bottom trawl surveys, that basis of flatfish resource in the West Bering Sea zone is formed by flathead sole, Alaska plaice and northern rock sole, respectively 40.3, 35.1 and 19.6% in the total flatfish biomass averaged for the period 2000–2021. Almost three quarters of the estimated flatfish stock of the zone are within the Anadyr Gulf. In 2001–2021 the stock was relatively stable and demonstrated a slight trend to growth. Estimates of the total biomass increased from 153 thous. t in 2001 to 230–305 thous. t in 2020–2021. The analysis of the current flatfish fishery showed that the major contribution to annual catches is made by the specialized fishery by bottom trawls – 39.4% and by Danish seines – 25.4%, and about 12.8% is taken as by-catch in the walleye pollock fishery by pelagic trawls. About 77.1% of the annual catches of flatfish reported in the West Bering Sea zone are taken from 169°E in Olutor Based on the analysis of the annual flatfish catch by different types of fishery, species composition of the catches and seasonal catch dynamics, the average proportion of northern rock sole in the total annual catches was about 53.1%. It is shown, that stocks of northern rock sole in this area bear the main fishing load, and Alaska plaice and flathead sole are not developed in full. Optimal scheme of the flatfish TAC assessment for the West Bering Sea zone is developed. It includes calculation of commercial biomass of northern rock sole by cohort methods, development of its fishery regulation rule, the TAC assessment based on this rule and assessment of possible by-catch of “minor” flatfish species based on their long-term proportional contribution into the catches.
About the Authors
A. O. Zolotov
Pacific Branch of Russian Federal Research Institute of Fisheries and Oceanography (TINRO-Centre)
Russian Federation
Russian Federation
Ph. D. in Biology, Leading Researcher, Pacific Branch of VNIRO (TINRO-Centre)
A. I. Glubokov
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO)
Russian Federation
Russian Federation
D. Sc. (Biology), Head of Department (VNIRO)
A. I. Varkentin
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Ph. D. (Biology), Deputy Director, Kamchatka Branch of VNIRO (KamchatNIRO)
References
1. Shuntov V.P., Bocharov L.N (Ed.) Atlas kolichestvennogo raspredeleniya nektona v zapadnoy chasti Beringova moray [Atlas of nekton species quantitative distribution in the western part of the Bering Sea]. Moscow: Publishing “Natsionalnye rybnye resursy”, 2006,1072 p.
2. Babayan V.K. Predostorozhnyi podkhod k otsenke obshchego dopustimogo ulova (ODU) [The Precautionary Approach to the Assessment of Total Allowable Catch (TAC)]. Moscow: VNIRO, 2000, 192 p.
3. Babayan V.K. Alternative methods for estimating recommended fishing intensity when calculating TAC. Rybnoe Khozyaistvo, 2004, no. 4, pp. 18–20. (In Russian)
4. Babayan V.K., Bobyrev A.E., Bulgakova T.I., Vasiliev D.A., Ilyin O.I., Kovalev Yu.A., Mikhailov A.I., Mikheev A.A., Petukhova N.G., Safaraliev I.A., Chetyrkin A.A., Sheremetyev A.D. Metodicheskiye rekomendatsii po otsenke zapasov prioritetnykh vidov vodnykh biologicheskikh resursov [Guidelines for assessing stocks of priority types of aquatic biological resources]. Moscow: VNIRO, 2018, 312 p.
5. Balykin P.A. Sostoyanie i resursi rybolovstvs v zapadnoi chasti Beringovs morya [Fishery state and resources in the west part of the Bering Sea]. Moscow: VNIRO, 2006, 143 p.
6. Bizikov V.A., Goncharov S.M., Polyakov A.V. The geographical informational system CardMaster. Rybnoe Khozyaistvo, 2007, no. 1, pp. 96–99. (In Russian)
7. Borets L.A. Donnyye ikhtiotseny rossiyskogo shelfa dalnevostochnykh morey: sostav, struktura, elementy funktsionirovaniya i promyslovoye znacheniye [Bottom ichthyocenes of the Russian shelf of the Far Eastern seas: composition, structure, functional elements and commercial significance]. Vladivostok: TINRO-Centre, 1997, 217 p.
8. Datsky A.V. The raw material base of fisheries and its use in the Russian waters of the Bering Sea. Report 2. Interannual dynamics of predicted and actual catch of aquatic biological resources at the present stage and in historical perspective. Trudy VNIRO, 2019, vol. 177, pp. 70–122. (In Russian)
9. Datsky A.V., Andronov P.Y. Ikhtiotsen verkhnego shel’fa severo-zapadnoy chasti Beringova moray [Ichthyocene of the upper shelf of the Northwestern Bering Sea]. Magadan: NESC FEB RAS, 2007, 261 p.
10. Dubinina A.Y., Zolotov A.O. Fecundity and maturation of northern rock sole Lepidopsetta polyxystra Orr et Matarese (2000) on the Pacific shelf of Kamchatka. Izvestia TINRO, 2013, vol. 172, pp. 119–132. (In Russian)
11. Zolotov A.O. Maximum ages of flounders (Pleuronectidae) in the Okhotsk and Bering Sea and on the Pacific coast of Kamchatka. Conservation of biodiversity of Kamchatka and coastal waters. Materials of VIII International scientific conference. Petropavlovsk-Kamchatsky, 2007, pp. 253–255 (In Russian)
12. Zolotov A.O. Simulation of the optimal regime of fishing yellow-fin sole in the west part of the Bering Sea. The researches of the aquatic biological resources of Kamchatka and of the north-west part of the Pacific Ocean, 2008, vol. 11, pp. 100–104. (In Russian)
13. Zolotov A.O. Kambaly zapadnoj chasti Beringova morja: dinamika chislennosti i osobennosti biologii. Avtoreferat discertacii kandidata biologicheskih nauk [Flounders of the western part of the Bering Sea: the dynamics of the abundance and features of biology. Abstract of dis. ... Ph.D. biol. sciences]. Vladivostok, TINRO, 2010, 20 p.
14. Zolotov A.O. Modern specialized fishery of sea fish in the Western Bering Sea. Izvestiya TINRO, 2021, vol. (201) 1, pp. 76–101. (In Russian)
15. Zolotov A.O., Zakharov D.V. Flounders of the Pacific coast of Kamchatka: stocks and fishing. Rybnoe Khozyaistvo, 2008, no. 3, pp. 44–47. (In Russian)
16. Zolotov A.O., Buslov A.V. A review of modern fishery of flounders (Pleuronectidae) in the waters adjacent Kamchatka and some aspects of flounder fishing with Danish seines. Problems of Fisheries, 2005, vol. 6, no. 3 (23), pp. 499–517. (In Russian)
17. Zolotov A.O., Dubinina A.Yu. Linear growth of the rock sole Lepidopsetta polyxystra Orr et Matarese (2000) in the Kamchatka waters. Izvestiya TINRO, 2012, vol. 171, pp. 97–120. (In Russian)
18. Zolotov A.O., Dubinina A.Y. The current state of the stocks of flounders of the Pacific shelf of Kamchatka and the Northern Kurils and the problems of regulating their fishing. Trudy SakhNIRO, 2013, vol. 14, pp. 17–35. (In Russian)
19. Zolotov A.O., Dubinina A.Y. Long-term dynamics of stock abundance and current fishing of flounders of the Southern Kuril Islands. Aquatic biological resources of Russia: condition, monitoring, management. Collection of materials of All-Russian scientific conf. with international participation, dedicated to 85th anniversary of KamchatNIRO (October, 3–6, 2017). Petropavlovsk-Kamchatsky: KamchatNIRO, 2017, pp. 62–73. (In Russian)
20. Zolotov A.O., Dubinina A.Y., Melnik D.Y. Distribution and seasonal migrations of the rock sole Lepidopsetta polyxystra Orr et Matareze (2000) on the Pacific shelf of Kamchatka and Northern Kuril. The researches of the aquatic biological resources of Kamchatka and of the north-west part of the Pacific Ocean, 2012, vol. 26, pp. 53–68. (In Russian)
21. Zolotov A.O., Smirnov A.V., Baranchuk-Chervonny L.N., Dubinina A.Y. Long-term dynamics and current state of yellowfin sole Limanda aspera stocks in the waters of Sakhalin Island. Izvestiya TINRO, 2014, vol. 178, pp. 25–57. (In Russian)
22. Ricker W.E. Computation and interpretation of biological statistics of fish populations. Ottawa, 1975, 408 p.
23. Bryan M.D., Palsson W. 2022. Assessment of Northern and Southern rock sole (Lepidopsetta polyxstra and bilineata) stocks in the Gulf of Alaska https://apps-afsc.fisheries.noaa.gov/refm/docs/2021/GOAnsrocksole.pdf /. Дата обращения 01.03.2022.
24. Darby C.D., Flatman S. Virtual Population Analysis. Version 3.1 (WINDOWS/DOS): User Guide. 1994, 85 p.
25. McGilliard C.R. 2022. Assessment of the Northern rock sole stock in the Bering Sea and Aleutian Islands. https://www.fisheries.noaa.gov/resource/data/2021-assessment-northern-rock-sole-stockbering-sea-and-aleutian-islands. Дата обращения 01.03.2022.
Review
For citations:
Zolotov A.O., Glubokov A.I., Varkentin A.I. Development of approaches to regulation of flatfish fishery in the West Bering Sea zone. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2023;(68):70-89. (In Russ.) https://doi.org/10.15853/2072-8212.2023.68.70-89
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