Status of reserves and fishing of peled Coregonus peled Middle Obi within the borders of the Tomsk region-Reference-Cited by-同舟云学术

Status of reserves and fishing of peled Coregonus peled Middle Obi within the borders of the Tomsk region

Published:2023-11-26 Issue:11 Volume: Page:724-731
ISSN:2074-5990
Container-title:Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries)
language:
Short-container-title:Fish Breeding and Fisheries

Author:

Tsapenkov A.V.^ORCID, ,Zaitsev V.F.^ORCID,Interesova E.A.^ORCID, ,

Abstract

The peled Coregonus peled is common in the water bodies of the Arctic. Peled reaches high numbers and biomass in the Ob-Irtysh basin coast of Eurasia. It lives in all major rivers of Siberia and it is a typical semi-anadromous species. It is assumed that in the Ob basin there are at least two subpopulations of peled, one of which reproduces in the Ural tributaries of the Ob (Lower Ob), the other in its middle reaches (Middle Ob). Peled in the Middle Ob within the boundaries of the Tomsk region is the main commercial target among whitefish species. Within the Tomsk region, fishing for the Middle Ob population of peled is carried out during its spawning migration, in September-October, on the approach to places of natural reproduction. In this study presents information about the stock, official catch and total allowable catches (TAC) of peled in the Middle Ob in the Tomsk region. In the last decade, the biomass of commercial peled stocks in the Middle Ob varies from 532.1 to 1349.7 tons, averaging 746.1 tons. According to official statistics, the catch of peled in the period from 2013 to 2022 ranged from 39.1 t to 89.7 t, which is below the TAC. According to calculated data, the actual volume of peled removal ranges from 19.9 tons to 86.7 tons or 27–118% of the legal catch of this species, which significantly exceeds the TAC. Thus, excessive fishing pressure on the spawning stock of peled will likely lead to a decrease in the reproductive capacity of the population and will have a negative impact on the state of peled stocks in the Ob basin as a whole.

Publisher

PANORAMA Publishing House

Subject

Environmental Engineering

Reference17 articles.

1. 1. Babayan, V.K., Bobyrev, A.E., Bulgakova, T.I. et al. Methodological recommendations for assessing stocks of priority types of aquatic biological resources. Publishing house VNIRO, Moscow, 2018. 312 p. (in Russian).

2. 2. Babkin, A.M., Babkina, I.B., Interestova, E.A. Size-age composition and catches of the peled Coregonus peled of the Middle Ob (within the Tomsk region). Vestnik rybokhozyaystvennoi nauki, 2018, vol. 5, no. 1, pp. 55-63 (in Russian).

3. 3. Krokhalevsky, V.R. Morphological features and spatial structure of the peled population of the Ob River. Izvestiya GosNIIORKH, 1978, vol. 133, pp. 56-67 (in Russian).

4. 4. Litvinenko, A.I., Kapustina, Ya.A., Matkovsky, A.K., Semenchenko, S.M. Sovremennoye sostoyaniye i problemy vosstanovleniya zapasov sigovykh ryb Ob'-Irtyshskogo basseyna [Current state and problems of restoration of coregonid fish stocks in the Ob-Irtysh basin]. Biology, biotechnology of breeding and state of coregonid fish stocks: mater. vseros. konf., 2016, pp. 57-60 (in Russian).

5. 5. Litvinenko, A.A., Rostovtsev, A.A., Zaitsev, V.F., Bessarab, A.C. Assessment of the magnitude of poaching catch of the siberian sterlet - acipenser rutenus marsiglii brandt in the average flow of the Irtysh river. Problems of Fisheries, 2013, no. 1, pp. 94-105 (in Russian).