Indicator approach in the qualitative assessment of the stock state of the long-clawed crayfish in the Volga River and its watercooms (Astrakhan region)-Reference-Cited by-同舟云学术

Indicator approach in the qualitative assessment of the stock state of the long-clawed crayfish in the Volga River and its watercooms (Astrakhan region)

Published:2023-03-22 Issue: Volume:191 Page:25-36
ISSN:2307-3497
Container-title:Trudy VNIRO
language:
Short-container-title:tv

Author:

Safaraliev I. A.¹,Barabanov V. V.¹,Maznikova O. A.²

Affiliation:

1. VNIRO, Volga-Caspian Branch (CaspNIRKH)

2. Russian Federal Research Institute of Fisheries and Oceanography (VNIRO)

Abstract

The aim of the paper is a qualitative assessment of the stock of long - clawed crayfish on the basis of the indicator approach.Methods used: indicator approach of qualitative stock assessment, methods of descriptive statistics, regression analysis.Novelty: a qualitative assessment of the stocks of long - clawed crayfish in the Astrakhan region by the indicator approach has not been previously carried out.Result: Qualitative assessments of the state of the stock of long- clawed crayfish in the Astrakhan region in 2016-2020 were obtained. The results of the assessments showed that in 2016, 2019 and 2020 its stock in the Astrakhan region was in an uncertain state (an integral assessment showed no dynamics in the state of the stock for the worse or better), and in 2017 and 2018 - in the alarming state (the integral assessment showed a negative trend in the state of the stock). The final integral assessment made it possible to formulate recommendations for the further exploitation of the stock of this species of hydrobiont.Practical significance: this study represents the application of the indicator approach in the biological sub -stantiation of the assessment of the total allowable catch of long - clawed crayfish in the Astrakhan region.

Publisher

Russian Federal Research Institute of Fisheries and Oceanography

Subject

General Medicine

Reference24 articles.

1. Aksyutina Z.M. 1968. Elements of mathematical evaluation of the results of observations in biological and fishery research. M: Pishevaya promyshlennost. 288 p. (In Russ.).

2. Babayan VK. 1998. On the management strategy for highly fluctuating fish stocks // Abstr. of the VII All- Russian Conference on Problems of Fishery Forecasting. Murmansk October 7-9, 1998 Murmansk: PINRO. P 37-38. (In Russ.).

3. Babayan V.K. 2000. Precautionary approach to estimating total allowable catch (TAC). Moscow: VNIRO Publish. 192 p. (In Russ.).

4. Bukin S.D., Begalova G. V 2011. Influence of fishing on some biological parameters of the grass shrimp Pandalus latirostris in the bay Treason (Kunashir Island) // Izvestiya TINRO. V. 165. P. 104-116. (In Russ.).

5. Buyanovskij A.I. 2012. Forecast of the potential catch of coastal invertebrates in case of difficulty in stock assessment. Guidelines. Moscow: VNIRO. Publish. 222 p. (In Russ.).