Biological indicators of some small commercial fish species (vimba, kutum, walleye) in the northern part of the Agrakhan Bay of the Caspian Sea in 2018-2022
https://doi.org/10.36038/0131-6184-2024-5-87-92
Abstract
Based on ichthyological materials collected in 2018-2022 in the northern part of the Agrakhan Bay of the Caspian Sea, the biological indicators of vimba, kutum, and walleye are considered. It is shown that in the years under review, the average values of length, weight, age decreased in kutum, and the condition of the groupings of this species should probably be recognized as unfavorable. The biological indicators of the vimba tended to increase, the condition of the grouping of this species does not cause concern. The biological indicators of walleye, despite the depression in numbers, increased slightly.
Keywords
the northern part of the Agrakhan Bay,
vimba,
kutum,
walleye,
age,
length,
weight,
proportion of females
About the Authors
N. I. Rabazanov
Caspian Institute of Biological Resources of Dagestan Federal Research Center of the Russian Academy of Sciences ; Dagestan State University
Russian Federation
Russian Federation
Nuhkadi I. Rabazanov – Doctor of Biological Sciences, Director, Head of the Department of Ichthyology
367000, Republic of Dagestan, Makhachkala, M. Gadzhieva str., 45
367000, Republic of Dagestan, Makhachkala, Gadzhieva str., 43a
A. A. Smirnov
Russian Federate Research Institute of Fisheries and Oceanography (VNIRO Federal State Budgetary Budgetary Institution) ; Northeastern State University ; Dagestan State University
Russian Federation
Russian Federation
Andrey A. Smirnov – Doctor of Biological Sciences, Associate Professor, Chief Researcher of the Department of Marine Fishes of the Far East; Professor of the Department of Exact and Natural Sciences; Professor of the Department of Ichthyology
105187, Moscow, Okruzhny Proezd, 19
685000, Magadan, Portovaya str., 13
367000, Republic of Dagestan, Makhachkala, Gadzhieva str., 43a
R. M. Barkhalov
Caspian Institute of Biological Resources of Dagestan Federal Research Center of the Russian Academy of Sciences ; Dagestan State Natural Biosphere Reserve
Russian Federation
Russian Federation
Ruslan M. Barkhalov – Candidate of Biological Sciences, Head of the Laboratory of Marine Biology and Aquaculture, Senior Researcher
367000, Republic of Dagestan, Makhachkala, M. Gadzhieva str., 45
Republic of Dagestan, 367010,Makhachkala, Gagarina str., 120
References
1. Magritskiy D.V., Samokhin M.A., Goncharov A.V., Erin O.N., Sokolov D.I., Surkov V.V., Tereshina M.A., Mikhailyukova P.G., Semenova A.A. (2022). Features and factors of hydrological and morphological changes in the Agrakhan Bay at the mouth of the Terek River in the XX century and the beginning of the XXI century // Water resources. Vol. 49. No.5. Pp. 625-640. https://doi.org/10.31857/S0321059622050091 (In Russ.).
2. Magritskiy D.V., Goncharov A.V., Moreido V.M., Samokhin M.A., Abdusamadov A.S., Kuptsov S.V., Jamirzoev G.S., Erin O.N., Sokolov D.I., Arkhipkin V.S., Tereshina M.A., Surkov V.V., Semenova A.A. (2022). On the hydroecological state of the Agrakhan Bay and the possibility of its improvement // Arid ecosystems. Vol. 28. No. 4 (93). Pp. 163-178. https://doi.org/10.24412/1993-3916-2022-4-163-178 (In Russ.).
3. Abdusamadov A.S., Huseynova S.A., Dudurkhanova L.A. (2016). Analysis of the state of stocks and fisheries of biological resources of the western part of the Middle Caspian Sea and prospects for using their resource potential // South of Russia: ecology, development. vol. 11. No.2. Pp. 70-83. (In Russ.).
4. Barkhalov R.M., Abdusamadov A.S., Stolyarov I.A., Taibov P.S. (2016). Fisheries importance of the Dagestan coast of the Caspian Sea and recommendations for the conservation of fish stocks – Makhachkala: ALEPH. 133 p.
5. Specially protected natural territories of the Republic of Dagestan. (2020). // Proceedings of the Dagestan State Nature Reserve. Issue 16. – Makhachkala: ALEPH. Pp. 61-65. (In Russ.).
6. Ramazanova D.M., Grozescu Yu.N., Sudakova N.V. (2024). Characteristics of the structural changes of the ichthyofauna in the northern part of the Agrakhan Bay over the past 5 years // Bulletin of the Astrakhan State Technical University. Series: Fisheries. No.1. Pp. 7-13. https://doi.org/10.24143/2073-5529-2024-1-7-13 (In Russ.).
7. Pravdin I.F. (1966). Guide to the study of fish (mainly freshwater) – M.: Food industry. 376 p. (In Russ.).
8. Barkhalov R.M. (2014). Methodological guidelines for the collection and processing of ichthyological material – Makhachkala. The DSPU Editorial and Publishing Center. 108 pages. (In Russ.).
9. Vasilyeva L.M., Rabazanov N.I., Sudakova N.V., Anokhina A.Z., Ramazanova D.M., Barkhalov R.M. (2023). Comparative assessment of the current state of semi-aquatic and semi-aquatic fish species in the northern part of the Agrakhan Bay // Arid ecosystems. Vol. 29. No. 3 (96). Pp. 141-147. https://doi.org/10.24412/1993-3916-2023-3-141-147 (In Russ.).
10. Aliev A.B., Barkhalov R.M., Shikhshabekova B.I. (2021). The modern structure of the population of commercial fish species in the specially protected natural area of the reserve “Agrakhansky” // Problems of development of the agro-industrial complex of the region. No. 3 (47). Pp. 111-120. https://doi.org/10.52671/20790996_2021_3_111 (In Russ.).
11. Rabazanov N.I., Smirnov A.A., Barkhalov R.M. (2024). Biological indicators of dominant fish species in the northern part of the Agrakhan Bay of the Caspian Sea // Fisheries. 2024. No.2. Pp. 79-87. https://doi.org/10.36038/0131-6184-2024-2-79-87. (In Russ.).
12. Ramazanova D.M., Vagabova N.A.V., Vasilyeva L.M., Rabazanov N.I., Barkhalov R.M., Mirzakhanov M.K. (2023). Modern characteristics of valuable commercial fish species in the northern part of the Agrakhan Bay // Bulletin of Dagestan State University. Series 1. Natural sciences. Vol. 38. Issue 1. Pp. 88-92. https://doi.org/10.21779/2542-0321-2023-38-1-88-92 (In Russ.).
13. Ramazanova D.M., Grozescu Yu.N. (2023). The current state of passable fish species in the northern part of the Agrakhan Bay on the example of Kutum // Materials of the IV All-Russian (national) scientific and practical conference “Game and fish resources: use and reproduction”. – Krasnoyarsk. Krasnoyar. state agrarian. univ. Pp. 256-260. (In Russ.).
14. Ramazanova D.M., Barkhalov R.M. (2024). Bioecological state of passing fish species in the Agrakhan Bay on the example of Kutum // Materials of the All-Russian scientific and practical conference (Within the framework of the Priority 2030 program) “Modern view on the development of the fishing industry”. – Makhachkala. Dagestan State Agrarian University. Pp. 127-134. (In Russ.).
15. Shishkhabekova B.I., Musaeva I.V. (2023). Some data on morphobiological indicators and age structure of perch and walleye populations under anthropogenic pressure in the Agrakhan Bay // Proceedings of the VIII national scientific and practical conference with international participation “The state and ways of aquaculture development in the Russian Federation”. Saratov. Saratov State Agrarian University. Pp. 244- 250. (In Russ.).
16. Barkhalov R.M., Ramazanova D.M., Khlopkova M.V., Mirzakhanov M.K. (2024). To the study of the biology of walleye (Sander lucioperca) in the changed environmental conditions of the northern part of the Agrakhan Bay of the Caspian Sea // Izvestia of Higher educational institutions. The North Caucasus region. Series: Natural Sciences.. No. 1 (221). Pp. 118-125. https://doi.org/10.18522/1026-2237-2024-1-118-125 (In Russ.).
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For citations:
Rabazanov N.I., Smirnov A.A., Barkhalov R.M. Biological indicators of some small commercial fish species (vimba, kutum, walleye) in the northern part of the Agrakhan Bay of the Caspian Sea in 2018-2022. Fisheries. 2024;1(5):87-92. (In Russ.) https://doi.org/10.36038/0131-6184-2024-5-87-92
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