INFLUENCE OF THE ANTHROPOGENIC PRESSURE ON VARNA AND BELOSLAV LAKES AND THEIR ICHTHYOFAUNA

Author:

Bekova Radoslava1ORCID,Prodanov Bogdan1ORCID,Lambev Todor1ORCID

Affiliation:

1. Institute of Oceanology "Fridtjof Nansen", Bulgarian Academy of Science

Abstract

The Varna and Beloslav lakes are the most strongly anthropogenized water bodies along the Bulgarian coast. At present, the lakes are again subject to deepening of the navigable channel, which significantly changes the quality of the habitats. An ecosystem approach was used to assess the status of the populations of fish species from the Varna-Beloslav Lake Complex. The paper's main purpose is to provide up-to-date information on the ichthyofauna of the largest northern Bulgarian Black sea brackish water bodies � Varna and Beloslav Lakes, the influence of the anthropogenic factor and its consequences.. The article includes data from mass kill fish and changes in physicochemical parameters in the period 2019 - 2021, compared to the previous periods, and identifies the main species affected by anthropogenic pressure. The data show that the mass death of fish includes small age groups and size classes. The anthropogenic pressure analysis shows that many fish species inhabiting the two lakes have lost their natural habitats.

Publisher

STEF92 Technology

Reference5 articles.

1. [1] Georgiev Z. Species composition of the ichthyofauna of the Bulgarian Black Sea lakes. Proceedings of the Research Institute of Fisheries and Oceanology � Varna, Vol. VIII, pp. 211 � 227, 1967.

2. [2] Karapetkova, M., M. Zhivkov. The fish in Bulgaria. Gaia Libris, Sofia, 92 p., 2006.

3. [3] Lambev, T., Prodanov, B., Dimitrov, L., Kotsev, I.. Digital terrain model of the Varna and Beloslav Lakes, North Bulgarian Black Sea Coast. In Eighth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2020), Vol. 11524, pp. 740-747, 2020. [3] Chugunova, N. Guidance for studying the age and growth of fish. ANSSR, Moscow, 156 p, 1959.

4. [4] Act � �-4/14 September 2012

5. [5] NATURA 2000 �Mapping of conservation status and habitats - Phase 1� - http://natura2000.moew.government.bg/Home/Map

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. SEABED FORMS AND SUBSTRATE MAPPING OF THE NESSEBAR AND POMORIE BAYS. SOUTHERN BULGARIAN BLACK SEA SECTOR;SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings;2023-10-01

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3