Nesho Chipev

Nesho Chipev

Professor Emeritus
Different scientific projects for research on stress ecology of the marine biota in the Bulgarian Black Sea part.

About

154
Publications
16,898
Reads
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330
Citations
Citations since 2016
46 Research Items
168 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Introduction
I was the Director of the Central Laboratory of General Ecology of the BAS 2000-2008), and then I was the head of the Ecosystem Research Section at the newly established Institute of Biodiversity and Ecosystem Research of the Biulgarian Academy of sciences (2010-2018). My scientific work in the last five years is related to basic national research projects in the field of marine ecology and the stress ecology of the Black Sea biota.
Additional affiliations
March 2012 - present
Konstantin Preslavsky University of Shumen
Position
  • Professor (Full)
March 2011 - present
University of Shumen
Position
  • Professor (Full)
May 1996 - present
Bulgarian Academy of Sciences
Position
  • Professor

Publications

Publications (154)
Poster
Full-text available
RESULTS The obtained results indicated significantly increased GSH levels and CAT activity in all tested tissues, together with decreased activities of the other tested enzymes at the beginning of autumn compared to the beginning of summer. CONCLUSION Based on the presented results, we hypothesised that increased environmental pressures on the coas...
Poster
Full-text available
R3 (Kamchia estuary) R4 (Shkorpilovtsi bay) R2 (Karaborun cape) R1 (Mussel farm) S3 (Varna bay) S5 (Ahtopol bay) S1, S2 (Gradina bay) S4 (Kranevo bay) R5 (St. Ivan island) R6 (Sozopol clifs) Fig.1. Distribution of sampling sites among ecosystem types (R-Infra-littoral rocks and other hard substrate; S-Sub-littoral sediments) Background Marine bival...
Poster
Full-text available
1996 г. и от 16 юли 1996 г. е равноправен член. Страните по Конвенцията работят за намаляване на загубата на биоразнообразие в глобален, национален и регионален мащаб, включващо и борбата с бедността и подобряване на условията за съществуване на всички форми на живот на Земята. България се нарежда на едно от първите места в Европа по своето биоразн...
Poster
Full-text available
Anthropogenic pressures are increasingly affecting marine ecosystems, causing significant changes in their state and functionality. The Black Sea is a unique semi-еnclosed basin which is accepted to be one of the highly polluted seas. As the number of possible pollutants is huge they can have not only cumulative but also synergistic effects. Thereb...
Article
Full-text available
Pollution with plastic waste and its effects on marine organisms is a global problem, the Black Sea being no exception. This study aimed to assess for the first time the presence of microplastics (MPs) in wedge clams Donax trunculus Linnaeus, 1758 from different localities along the Bulgarian Black Sea coast. Three morphological forms of MPs were i...
Article
Full-text available
This paper presents a study on the microbial status of different fish species and their habitats in the Bulgarian Black Sea area. The samples were collected in the period of January 2021 until March 2021. The fish species we used in this study were Black Sea turbot ( Scophthalmus maximus ), round goby ( Neogobius melanostomus ), shore rockling ( Ga...
Article
Full-text available
The present study reports on the determination of the antimicrobial activity of lactic acid bacteria (LAB) isolated from the Black sea mussel Mytilus galloprovincialis Lamarck, 1819. The samples were collected in the period of August 2018 until March 2021. The BIOLOG system was used for microbiological determination. From the mussel M. galloprovinc...
Preprint
Full-text available
The aim of the present study was to perform a pilot assessment and analysis of the oxidative stress (OS) level in four commercially important fish species (round goby, red mullet, sprat and horse mackerel) from different localities of the Bulgarian Black Sea coast. The fish were sampled during trawl selectivity experiments. The OS level in the fish...
Article
Full-text available
Pollution and climate change can induce oxidative stress (OS) in aquatic organisms. Reduced activity or incoordination between antioxidant enzymes in marine bivalves may cause cellular impairment with effects on higher levels of ecological organization. The present study aims to assess the condition factor and the activity of antioxidant enzymes ca...
Article
Full-text available
The pro/antioxidant status of marine macrozoobentic organisms is being increasingly applied in environmental monitoring and conservation programs. The oxidative stress level in marine bivalves can provide valuable information not only on the health of the organisms and their populations, but also on the current state of habitats and ecosystems. The...
Article
Full-text available
The aim of the present study was to carry out an initial screening of trace metals bioaccumulation in soft tissues of the wedge clam ( Donax trunculus Linnaeus, 1758) from different localities of the Bulgarian Black Sea coastal area and to evaluate the bioindicator potential of this species. Wedge clams were collected in June and September 2020 fro...
Article
Full-text available
The main goal of the present study was to investigate the impact of the state of the environment on the microbiota of the wedge clam Donax trunculus (Linnaeus, 1758) from the region of Arkutino (Bulgarian Black Sea aquatory). The species Enterococcus hirae was isolated during the summer (from May to August). The species P. mendocina prefers the war...
Article
Full-text available
Under the climate change context, warming Southern Ocean waters may allow mercury (Hg) to become more bioavailable to the Antarctic marine food web (i.e., ice-stored Hg release and higher methylation rates by microorganisms), whose biomagnification processes are poorly documented. Biomagnification of Hg in the food web of the Antarctic Peninsula, o...
Article
Full-text available
The present study is the first assessment of oxidative stress (OS) in fish species inhabiting the Bulgarian Black Sea coastal zone. The fish were caught during trawl selectivity experiments from different localities of the northern and southern coastal regions. The pro/antioxidant status of fish individuals was assessed by measuring standard OS bio...
Article
Full-text available
For top consumers in marine environments, trophic discrimination factors (∆¹³C and ∆¹⁵N) between food and consumers’ tissues are expected to be similar among related species. However, few studies conducted in the laboratory indicate a large variability among species, which should be potentially higher in free-ranging animals. Here, we test for diff...
Article
Full-text available
In the present study we present the results from antifungal activity of Lactic Acid Bacteria, isolated from M. galloprovincialis Lam. from the Bulgarian Black Sea aquatory. The Black Sea mussel (M. galloprovincialis Lam.) is in fact the only marine species grown as aquaculture in the Bulgarian section of the Black Sea. The mussels have an exception...
Article
Full-text available
In the present study we present the results from the isolation and study of microorganisms from Antarctic soils. The soil and lichen samples were gathered from the Livingston Island, South Shetland Islands. For the isolation of the different microorganism, different nutritious media were used. The isolated microorganisms were macro-morphologically...
Article
Full-text available
The study aimed at assessing changes in the pro-antioxidant balance in gills, foot and digestive gland, of the mussels, Mytilus galloprovincialis Lam., gathered in June and September in two successive years (2017-2018) from 11 different habitats with various environmental conditions of the Bulgarian Black Sea coastal area. The glutathione (GSH) con...
Book
Full-text available
The book is written to summarize the results of the WEMA project „Mapping and Assessment of Ecosystem Services of Wetlands in Bulgaria“. The project was implemented by the Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences (IBER‐BAS) and was accomplished with the financial support of the BG03 Program „Biodiversity...
Book
Full-text available
Книгата е написана с цел да се обобщят резултатите от проект „Картиране и оценка на екосистемните услуги във влажните зони на България“ (WEMA). Проектът беше изпълнен от Института по биоразнообразие и екосистемни изследвания при БАН (ИБЕИ- БАН) и е осъществен с финансовата подкрепа на Програма BG03 „Биологично разнообразие и екосистеми“, по Финансо...
Article
Full-text available
As climate change, among other factors, is increasingly affecting Antarctic marine systems, competition for prey may increase between predators, particularly in the Antarctic Peninsula which has warmed more than elsewhere. Under such a context, we tested the feeding and trophic ecology of Gentoo (Pygoscelis papua) and Chinstrap (Pygoscelis antarcti...
Article
Full-text available
The present paper is aiming at testing the National Methodological Framework for assessment ecosystem condition and ecosystem services on the local scale. In a pilot case study an assessment of the condition of Oriental beech (Fagus orientalis Lypski) ecosystems in Strandzha Mountain was carried out. The main conclusion to emerge is that the studie...
Article
Full-text available
The paper presents data of the autumn migration along the Western Black Sea migration route (Via Pon-tica) collected since 1979 with special attention to the changes of migration numbers and peak days of the ten most numerous soaring bird species. We found long-term increase in the migration numbers of Pelecanus onocrotalus, Ciconia ciconia, Ciconi...
Book
Full-text available
The present Monitoring guide is part of the structure of the National Methodological Framework for the mapping and biophysical valuation of the ecosystems in Bulgaria. It consists of: - an Introductory part including reflections and outlined practical steps on the connection with the economic assessment, natural capital accounting and other subsequ...
Book
Full-text available
The current document is part of the National Methodological Framework for assessment and mapping of ecosystem condition and ecosystem services in Bulgaria, which was produced with the financial support of the FM of the EEA, within the project BG03.PDP2“Methodological Support for Ecosystem Services Mapping and Biophysical Valuation” (MetEcoSMap). Th...
Book
Full-text available
The book is written to summarize the results of the WEMA project „Mapping and Assessment of Ecosystem Services of Wetlands in Bulgaria“. The project was implemented by the Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences (IBER‐BAS) and was accomplished with the financial support of the BG03 Program „Biodiversity...
Article
Full-text available
Assessment of DNA damage is of primary concern when the pollution-related stress in living organisms has to be determined. The reason for this concern comes from the evidence that damages in DNA often lead to mutations which are potential threat for the sustainability of organisms and ecological systems. To monitor genotoxicity of the marine enviro...
Article
Full-text available
Within the scope of the present study a field survey in the area of “Strandzha” Natural Park in south-east Bulgaria was carried out. The main goal of the investigation was to gain more detailed information on the diet of the European otters (Lutra lutra) that inhabit the park. As indicators for the presence of the mustelids a set of standard proced...
Article
Full-text available
In contemporary society various demographic factors lead to changes of people habits to use medicinal plants. A matter of interest is to establish how specific demographic features of people influence the use of herbs. The present survey aimed at determining the current trends regarding the use of four valuable medicinal Lamiaceae species in Bulgar...
Article
Full-text available
In the sustainable development concept the successful societal responses to conserve biodiversity are the key for maintaining ecosystem processes and structures, which is the basis for providing ecosystem services. Ecosystem services and resilience concepts have been seen as promising ways to analyse complex and coupled human-environment interactio...
Article
Full-text available
Effects of ozone on the sensitive tree species Fraxinus excelsior L. exposed to ambient air were investigated. The dynamics of photosynthesis, transpiration, stomatal conductance and the activity of the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) in three-year-old ash seedlings were studied during a four-month period (June-Sep...
Article
Full-text available
The soils of Antarctica are severe environments inhabited by well adapted microorganisms, the knowledge of which is scarce. The study on their abundance, diversity and physiology will provide the investigators with new data on the mechanisms of their adaptation and gives new opportunities to isolate microorganisms with unique properties for practic...
Conference Paper
Full-text available
The main objective of the present study was to assess changes in forest ecosystems in Strandzha Mt. for an 18 years period, directly or indirectly related to the flow of natural processes of regeneration and degeneration, and the possible role of environmental factors. The territory on which the survey was conducted, includes specific deciduous for...
Article
Full-text available
Terrestrial food webs of Antarctica are simple and dominated by microorganisms. Soil bacteria play an important role in nutrient cycling, yet little is known about their capacity to utilize different carbon sources and to participate in site nutrient turnover. Biolog EcoPlate™ was applied to study the catabolic activity and physiological diversity...
Conference Paper
Full-text available
An attempt was made to develop a basis for ecosystem services assessment – identification, description, classification and socio-economical evaluation. A pilot experiment was carried out in the territory of Natural Park “Strandzha Mountain”: the biggest protected area in Bulgaria, hosting unique biodiversity. The area includes villages and populate...
Article
Full-text available
The history of Castanea sativa Mill. (sweet chestnut) cultivation has been described on the basis of the available documentation. We have tried to identify the roles of the Greek and Roman civilizations in the dissemination of chestnut cultivation. This paper gives a short overview on the history and present situation of the chestnut cultivation in...