ANALYSIS OF NOWADAYS FISHERIES AND THE RECOMMENDATIONS OF THE REGULATION OF THE MAIN COMMERCIAL FISH SPECIES STOCKS EXPLOITATION IN THE DNIESTROVSKIY LIMAN
DOI:
https://doi.org/10.47143/1684-1557/2022.1-2.8Keywords:
Dniesterovskiy liman, commercial fish species, stock, exploitationAbstract
The dynamics of the catch of the main commercial fish species of the Dniesterovskiy liman are presented. The sizeage composition of the gibel carp Carassius gibelio (Bloch, 1783), common carp Cyprinus carpio (Linnaeus, 1758), common bream Abramis brama (Linnaeus, 1758), roach Rutilus heckelii (Nordmann, 1840) and common pike-perch Sander lucioperca (Linnaeus, 1758) from commercial catches in the Dniesterovskiy liman in 2012–2021 was analyzed. The obtained data were used to analyze the state of fish stocks and to obtain the recommended optimal indicators of their exploitation using modern models BSM, LBB and LB-SPR. The overexploitation of gibel carp in the Dniesterovskiy liman was observed accordingly BSM, LBB and LB-SPR results. A sharp increase in the level of exploitation of gibel carp has led to its stock decline. The level of common carp exploitation in 2018–2021 has approached the optimal value. The currently state of its population in the Dniesterovskiy liman is relatively good. Commercial exploitation of the common bream and roach remains at an excessive and at a relatively moderate level respectively. The catch and CPUE of the pike perch have been declined significantly in recent years. The stock of this species is in a very unfavorable condition. The recommendations for further use of the main commercial fish species in the Dniesterovskiy liman are given. Accordingly obtained results the value of the maximum sustainable yield (MSY) of gibel carp is 813 tons with the optimal average commercial length in the catch – 18.5–19 cm. MSY of common carp is set at 92.7 tons with the optimal length in the catch – 39.9 cm, common bream – 148 tons with an optimal length in the catch no less than 30.0 cm. MSY of roach is set at 57.7 tons. The value of pike perch biomass is significantly lower than the critical value of Bpa=0.5 BMSY – its catch should not exceed 5 tons. The strict compliance with the Rules (1998) and Regimes of commercial fishery, as well as commercial fishing regulating by limiting the use of fishing gear are the most effective methods of the abundance increasing and rational use of water biological resources of the Dniesterovskiy liman.
References
Б улат Ден., Булат Дм., Зубков Е., Филипенко С., Мустя М., Богатый Д., Губанов В., Степанок Н., Тромбицкий И. Предварительная оценка прессинга любительского лова на рыбные запасы Нижнего Днестра. Hydropower impact on river ecosystem functioning : Proceedings of the International Conference, Tiraspol, Moldova, October 8–9 2019. Tiraspol: Eco-Tiras, 2019. С. 35–40.
Б ушуєв С.Г., Снігірьов С.М. Організація рибальства в Нижньому Дністрі і в Дністровському лимані (аналітичний огляд). Морський екологічний журнал, 2020. 1. С. 53–63.
Г ребень В., Губанов В., Гуляева О., Гылка Г., Зубкова Е., Калашник А., Кольвенко В., Мелиан Р., Пенков М., Тромбицкий И., Усов А. Анализ влияния водохранилищ Днестровских ГЭС на состояние бассейна Днестра. Отчет молдавско-украинской экспертной группы / ред. Денисов Н. 2019. 62 с.
М етодика збору і обробки іхтіологічних і гідробіологічних матеріалів з метою визначення лімітів промислового вилучення риб з великих водосховищ і лиманів України / уклад. Озінковська С.П., В.М. Єрко, Г.Д. К оханова та ін. Київ: ІРГ УААН, 1998. 47 с.
М етодические указания по оценке численности рыб в пресноводных водоемах / сост. Ю.Т. Сечин. Москва: ВНИИ ПРХ, 1990. 50 с.
М овчан Ю.В. Риби України (визначник-довідник). Київ: Наукова думка, 2011. 420 с.
Правила промислового рибальства в басейні Чорного моря: Наказ Державного комітету рибного господарства України від 08 грудня 1998 № 164. URL: https://zakon.rada.gov.ua/laws/show/z0147-99#Text
Правдин И.Ф. Руководство по изучению рыб (преимущественно пресноводных). Москва: Пищевая промышленность, 1966. 375 с.
Пряхин Ю.В., Шкицкий В.А. Методы рыбохозяйственных исследований. Ростов-на-Дону: Изд-во ЮНЦ РАН, 2008. 256 с.
С нігірьов С.М., Леончик Є.Ю., Бушуєв С.Г. Стан промислових запасів коропа Cyprinus carpio Linnaeus, 1758, ляща Abramis brama (Linnaeus, 1758), тарані Rutilus rutilus (Linnaeus, 1758) та судака Sander lucioperca (Linnaeus, 1758) у Дністровському лимані в 2000–2019 рр. Рибогосподарська наука України. 2020. 1(51). С. 44–52.
С тарушенко Л.И., Бушуев С.Г. Причерноморские лиманы Одесщины и их рыбохозяйственное использование. Одесса: Астропринт, 2001. 151 с.
Т ромбицкий И., Булат Ден., Булат Дм., Филипенко С., Мустя М., Богатый Д., Губанов В., Степанок Н. Оценка влияния любительского рыболовства на рыбные запасы Нижнего Днестра. Oтчет по результатам полевых исследований в 2019–2020 гг. Kишинев-Одеса–Тирасполь: Eco-Tiras, 2020. 23 c.
Чугунова Н.И. Руководство по изучению возраста и роста рыб. Москва: Изд-во АН СССР , 1959. 164 с.
F roese R., Binohlan C. Empirical relationships to estimate asymptotic length, length at first maturity and length at maximum yield per recruit in fishes, with a simple method to evaluate length frequency data. Journal of Fish Biology. 2000. Vol. 56(4). P. 758–773.
F roese R., Branch T.A., Proelβ A., Quaas M., Sainsbury K., Zimmermann C. Generic harvest control rules for European fisheries. Fish and Fisheries. 2011. Vol. 12(3). P. 340–351.
F roese R., Demirel N., Coro G., Kleisner K., Winker H. Estimating fisheries reference points from catch and resilience. Fish and Fisheries. 2017. Vol. 18(3). P. 506–526.
F roese R., Winker H., Coro G., Demirel N., Tsikliras A., Dimarchopoulou D., Scarcella G., Probst W.N., Dureuil M., Pauly D. A new approach for estimating stock status from length frequency data. ICES Journal of Marine Science. 2018. Vol. 75(6). P. 2004–2015.
F roese R., Pauly D. (eds). FishBase. World Wide Web electronic publication. UR L: www.fishbase.org (06/2021)
G oodyear C.P. Spawning stock biomass per recruit in fisheries management: foundation and current use. Canadian Special Publication in Fisheries and Aquatic Sciences. 1993. Vol. 120. P. 67–82.
H ordyk A., Ono K., Sainsbury K., Loneragan N., Prince J. Some explorations of the life history ratios to describe length composition, spawning‐per‐recruit, and the spawning potential ratio. ICES Journal of Marine Science. 2015. Vol. 72(1). P. 204–216.
H urtado-Ferro F., Szuwalski C.S., Valero J.L., Anderson S.C., Cunningham C.J., Johnson K.F., Licandeo R., McGilliard C.R., Monnahan C.C., Muradian M.L., Ono K., Vert-Pre K.A., Whitten A.R., Punt A.E. Looking in the rear-view mirror: bias and retrospective patterns in integrated, age-structured stock assessment models. ICES Journal of Marine Science. 2015. 72. P. 99–110.
Jensen A.L. Beverton and Holt life history invariants result from optimal trade-off of reproduction and survival. Canadian Special Publication in Fisheries and Aquatic Sciences. 1996. 53. P. 820–822.
Markov Chain Monte Carlo in Practice / eds. W.R. Gilks, S. Richardson, D.J. Spiegelhalter. London: Chapman and Hall/CRC, 1996. 504 p.
Mohn R. The retrospective problem in sequential population analysis: An investigation using cod fishery and simulated data. ICES Journal of Marine Science. 1999. 56. P. 473–488.
Prince J., Hordyk A., Sarah R.V., Loneragan N., Sainsbury K. Revisiting the concept of BevertonHolt lifehistory invariants with the aim of informing data-poor fisheries assessment. ICES Journal of Marine Science. 2015. 72 (1). P. 194–203.
S chaefer M.B. Some aspects of the dynamics of populations important to the management of the commercial marine fisheries. Inter-American Tropical Tuna Commission Bulletin. 1954. 1(2). P. 23–56.
S nigirov S., Kvach Yu., Kutsokon Yu., Zamorov V., Snigirova A., Sylantyev S. Ecological and taxonomic analysis of the ichthyofauna of the Lower Dniester, the Dniester Estuary and the adjacent Black Sea area. Acta Zoologica Bulgarica. 2022. 74 (2). P. 245–254.
T he Magnuson-Stevens Fishery Conservation and Management Act is the primary law that governs marine fisheries management in U.S. federal waters. Last updated by Office of Sustainable Fisheries on 02/24/2022. UR L: https://www.fisheries.noaa.gov/resource/document/magnuson-stevens-fishery-conservation-andmanagement-act
