Гл. ас. д-р Димитър Дойчев Димитров
Факултет: Факултет по природни науки
Катедра: БИОЛОГИЯ
Кабинет: Корпус 1, стая 313
Телефон: 054 830495 вътр. 318 К1
Email: d.doichev@shu.bg
Приемно време: Петък от 10 до 12 часа; Присъствено време: сряда и четвъртък от 08:00 до 16:00 часа;
| 2022 | Оценка на въздействието на стагнантни и подвижни водни тела върху екосистеми чрез сравнителен биофизичен анализ |
| 2025 | Doychev D, and Taneva L., 2025. An unpolluted regulated stream and its recovery gradient dependency from environmental variables. Limnetica, 44(1): 000-000 (2025). DOI: 10.23818/limn.44.11. (Web of Science, SCOPUS, SJR2024 0.347, Q3, IF2024 – 1.2, H index – 40). | 2025 | DOYCHEV, D., DAVIDOVA, R. & TANEVA, L., DAIRY PLANT RAW SEWAGE LONGITUDINAL INFLUENCE ON RIVERINE WATER QUALITY, BOTTOM INVERTEBRATES AND THE MASS DEVELOPMENT OF HEALTH-THREATENING MICROORGANISMS IN AGRICULTURAL RIVER REACH, NE BULGARIA, Carpathian Journal of Earth and Environmental Sciences, February 2025 Vol. 20, No. 1, p. 121 – 134; DOI:10.26471/cjees/2025/020/319 (Web of Science, SCOPUS, SJR2024 0.23, Q3, IF2024 – 0.9, H index – 28). | 2025 | Doychev D, Gartsiyanova K, Yordanova G, Taneva L (2025) Multiple factor analysis using water quality index scores and parameters as an approach for evaluating the environmental status of polluted lakes along the Black Sea coast of Bulgaria. Journal of the Bulgarian Geographical Society 52: 37-57. https://doi.org/10.3897/jbgs.e143055, (SCOPUS, SJR2024 0.515, Q2, H index – 9). | 2025 | Davidova, R., Doychev, D. (2025). The community structure of Testate amoebae (Amoebozoa, Rhizaria) and their relation to water pH in reservoirs in Northeastern Bulgaria, Journal of Wildlife and Biodiversity, 9(2), 258-273. DOI: https://doi.org/10.5281/zenodo.15512891 (Web of Science - Q4; Scopus - Q4; H index - 8) | 2024 | Doychev D, Gartsiyanova K, Taneva L. Environmental Variables Significance for Ecological Status Assessment in the Bulgarian Eastern Continental Shallow Lakes. Journal of Ecological Engineering. 2024;25(10). (Web of Science, SCOPUS, SJR2024 0.404, Q2, IF2024 – 1.3, H index – 34). | 2024 | Taneva, L., Zahariev, D., Doychev, D. (2024). First record of the freshwater sponges (Spongilla) in the inland waterways of Bulgaria. Acta Scientifica Naturalis, 11(3) 1–11, DOI: 10.2478/asn-2024-0014. | 2023 | Doychev DD. Longitudinal recovery gradient of macroinvertebrates during different hydrological scenarios in a downstream river reach. Journal of Limnology, 2023, 82:2125, eISSN 1723-8633 - pISSN 1129-5767 (Web of Science, SCOPUS, SJR2022 0.38, Q2, IF2023 – 1.6, H index – 50). | 2022 | • Natchev N., T. Koynova, K. Tachev, D. Doichev, P. Marinova, V. Velkova and D. Jablonski, 2022. Temperature regulation in the Balkan spadefoot (Pelobates balcanicus Karaman,1928) at the beginning of nocturnal activity. PeerJ 10:e13647 DOI 10.7717/peerj.13647. (Web of Science, SCOPUS, SJR2022 0.62, Q1, IF2023 – 2.7, H – index 110) | 2022 | Ignatova-Ivanova T, Ibryamova S, Bachvarova D, Salim S, Valkova S, Simeonova Y, Dimitrov D, Ivanov R, Chipev N, Natchev N (2022) Determination of the antimicrobial activity of lactic acid bacteria isolated from the Black Sea mussel Mytilus galloprovincialis Lamarck, 1819. Pharmacia 69(3): 637–644. https://doi.org/10.3897/pharmacia.69.e84850. (SCOPUS, SJR2022 0.24, Q2, H index - 18). | 2022 | Ibryamova S, Pavlova B, Stanachkova E, Salim S, Lyatif A, Dimitrov D, Bachvarova D, Chipev N, Natchev N, Ignatova-Ivanova T (2022) Seasonal variations of the microflora of wedge clam Donax trunculus (Linnaeus, 1758) from the region of Arkutino (Bulgarian Black Sea aquatory). In: Chankova S, Peneva V, Metcheva R, Beltcheva M, Vassilev K, Radeva G, Danova K (Eds) Current trends of ecology. BioRisk 17: 253–262. https://doi.org/10.3897/biorisk.17.77097 (SCOPUS, SJR2022 0.25, Q2, H index - 10). | 2021 | Natchev N, Yordanova K, Topliceanu S, Koynova T, Doichev D and Coga lniceanu D (2021), Ontogenetic Changes of the Aquatic Food Uptake Mode in the Danube Crested Newt (Triturus dobrogicus Kiritzescu 1903). Front. Ecol. Evol. 9:641657. doi: 10.3389/fevo.2021.641657 | 2021 | Pavlova BK, Ibryamova SF, Bachvarova D, Doichev DD, Stanachkova ET, Salim S, Natchev ND, Ignatova-Ivanova TV. Specific microbiology spectrum of white sand mussels from key sample spots from Bulgarian Black Sea aquatory. J of IMAB. 2021 Oct-Dec;27(4):4077-4083. DOI: https://doi.org/10.5272/jimab.2021274.4077; | 2020 | Doichev, D., Santander, P., Koynova, T., Petkov, M., Natchev, N. (2020) Assessment of the Ecological Status of “Dalgachka“ River in its Section within the Protected Site “Ovcharovo“, (NE Bulgaria). Ecologia balkanica, 12(1), 76-84. | 2020 | Koynova, T., Doichev, D., Natchev, N. (2020) New data on the distribution of the Bulgarian Bent-toed Gecko (Mediodactylus danilewskii Strauch, 1887) in Shumen town (NE Bulgaria). Biharean Biologist, 14(2), Article No.: e202302 | 2020 | Ibryamova, S., Archangelova, N., Koynova, T., Dimitrov, D., Dimitrova, Zh., Ivanov, R., Kalchev, K., Chipev, N., Natchev, N., Ignatova-Ivanova, Ts. (2020) Antifungal Activity of Lactic Acid Bacteria, Isolated from (Mytilus galloprovincialis Lam.) in The Bulgarian Black Sea aquatory. Journal of IMAB - Annual Proceeding (Scientific Papers), 26(1), 2875-2882. ISSN: 1312-773X (Q4, IF 0.231, SJR 0.1, H Index 1) | 2020 | Borislava K. Pavlova, Sevginar F. Ibryamova, Nina N. Arhangelova, Dimitar D. Doichev, Radoslav I. Ivanov, Nesho H. Chipev, Nikolay D. Natchev, Tsveteslava V. Ignatova-Ivanova, Integrative Investigation on the Ecology of the Black Sea Mussel Mytilus galloprovincialis Lam. and its Habitat, 2020, Ecologia Balkanica, http://eb.bio.uni-plovdiv.bg | 2020 | TEODORA KOYNOVA, DIMITAR DOICHEV, NIKOLAY NATCHEV, Impacts of resource limitations on the reproduction behaviour in the Agile Frog (Rana dalmatina) on the territory of Natura park “Shumensko plato”, 2020, ZooNotes 168: 1-4 (2020), www.zoonotes.bio.uni-plovdiv.bg, ISSN 1313-9916 |
| 2024 | Dimitar Doychev. Plenary report “Biological recovery in thermally altered stream. Dependent from nutrients?” The 20th ANNUAL MEETING \"DURABLE AGRICULTURE –AGRICULTURE OF THE FUTURE“, 14th-15th November 2024, Craiova, Romania | 2024 | Lidiya Taneva, Dimcho Zahariev, Dimitar Doychev. FIRST RECORD OF FRESHWATER SPONGES IN INTERTERRITORIAL WATERWAYS OF BULGARIA. The 20th ANNUAL MEETING \"DURABLE AGRICULTURE –AGRICULTURE OF THE FUTURE“, 14th-15th November 2024, Craiova, Romania | 2024 | Kristina Gartsiyanova, Lidiya Taneva, Gratsiela Yordanova, Dimitar Doychev. Physico-chemical Variables Significance on Water Quality Status of Heavely Impacted Lake Ecosystems on Bulgarian Black Sea Coast. VI НАУЧНА КОНФЕРЕНЦИЯ С МЕЖДУНАРОДНО УЧАСТИЕ ГЕОГРАФИЯ РЕГИОНАЛНО РАЗВИТИЕ И ТУРИЗЪМ. 8 – 10 НОЕМВРИ 2024 г. ШУМЕН | 2024 | Dimitar DOYCHEV, Gratsiela YORDANOVA, Borislava BORISOVA, Lidiya TANEVA, June 2024, Health and environmental risk from non-treated wastewater from a dairy plant. THE INTERNATIONAL YOUNG PEOPLE SCIENTIFIC CONFERENCE, \"THE ENVIRONMENT - RESEARCH, CHARGE, ADMINISTRATION\" 2024, Craiova, Romania. | 2024 | Lidiya TANEVA, Dimcho ZAHARIEV, Dimitar DOYCHEV, June 2024, Macrophytes along diverse environments and various impacts within Luda Kamchia River, THE INTERNATIONAL YOUNG PEOPLE SCIENTIFIC CONFERENCE, \"THE ENVIRONMENT - RESEARCH, CHARGE, ADMINISTRATION\" 2024, Craiova, Romania. | 2024 | Ayshe Marinova, Lidiya Taneva, Dimitar Doychev, April 2024, Thermally altered semi mountain stream and its macroinvertebrate recovery gradient dependency from environmental variables, 12th Student Scientific Conference “Еcology and environment” Poster section “Еcology, Healthy lifestyle”, KONSTANTIN PRESLAVSKY UNIVERSITY OF SHUMEN FACULTY OF NATURAL SCIENCES DEPARTMENT OF BIOLOGY. | 2024 | Gratsiela Yordanova, Lidiya Taneva, Dimitar Doychev, April 2024, Influence of the environmental variables from clean thermally stratified dam on the quality of riverine Waters, 12th Student Scientific Conference “Еcology and environment” Poster section “Еcology, Healthy lifestyle”, KONSTANTIN PRESLAVSKY UNIVERSITY OF SHUMEN FACULTY OF NATURAL SCIENCES DEPARTMENT OF BIOLOGY. | 2023 | Stoycho Trifonov, Dimitar Doychev. Dopamine - universal currency of wellbeing. 11th Student Scientific Conference “Еcology and environment”, Shumen, Bulgaria, April 22, 2023 | 2022 | 2022 | Stoycho Trifonov, Dimitar Doychev. Hydrological alterations, as a main negative influence on the macrozoobenthic community in downstream river stretches - Case study of Golyama Kamchia river. The tenth student scientific conference “Ecology and environment”, Shumen, Bulgaria, April 30, 2022. | 2022 | Димитър Димитров, Стойчо Трифонов, Венка Дагонова, Мария Атанасова, Алтънай Ахмедов. Доклад: Анализ за синхронизиране и оптимизиране на процесите за набиране на данни по Директива за местообитанията, Рамкова Директива за водите и Рамкова Директива за Морска Стратегия. 20-та Национална конференция с международно участие „Природни науки“ 2022, 30.09-02.10.2022 г. | 2021 | Pavlova Borislava, Sevginar Ibryamova, Simona Toschkova, Elitsa Stanachkova, Dimitar Doichev, Karamfil Kalchev, Darina Bachvarova, Nikolay Natchev, Tsveteslava Ignatova-Ivanova Investigation of the degree of pollution of Varna Lake by the use of white sand mussels as a microbiological biomarker, NINTH STUDENT SCIENTIFIC CONFERENCE “ECOLOGY AND ENVIRONMENT” April 23-24, 2021 | 2021 | Ibryamova Sevginar, Borislava Pavlova, Simona Valkova, Aysel Ibrahim, Elitsa Stanachkova, Dimitar Doichev, Nikolay Natchev, Tsveteslava Ignatova-Ivanova Investigation of the degree of pollution of Varna Lake using Black (Mytilus galloprovincialis Lam.) as a microbiological biomarker, NINTH STUDENT SCIENTIFIC CONFERENCE “ECOLOGY AND ENVIRONMENT” April 23-24, 2021 | 2020 | Ibryamova S., B. Pavlova, A. Ibrahim, E. Stanachkova, D. Dimitrov, N. Natchev, Ts. Ignatova-Ivanova. Microbiological characteristics of mussel Mytilus galloprovincialis Lam. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24.04.2020, Volume 7, pp 39-41. | 2020 | Pavlova B., S. Ibryamova, D. Dimitrov, K. Kalchev, D. Bachvarova, Ts. Ignatova-Ivanova. Microbiological characteristics of white sand mussel Mya arenaria. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24.04.2020, Volume 7, pp 37-38. | 2020 | S. Ibryamova, S. Valkova, E. Stanachkova, K. Kalchev, R. Ivanov, Z. Dimitrova, T. Koynova, D. Doichev, N. Chipev, N. Natchev, Ts. IgnatovaIvanova. Plenary lecture: Microbiological and ecological assessment of the habitat of the mussel Mytilus galloprovincialis Lam. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24.04.2020, Volume 7, pp 8-11 | 2020 | Teodora Koynova, Dimitar Doichev, Sesil Mustafova, Nikolay Natchev. Herpetological transect in the area of the fifth Ropotamo river. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24-25.04.2020. | 2020 | Teodora Koynova, Dimitar Doichev, Aysel Lyatif, Nikolay Natchev. The distribution of the Bulgarien Bent-toed Gecko (Mediodactylus danilewskii) in Shumen, Bulgaria. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24-25.04.2020. | 2020 | Teodora Koynova, Dimitar Doichev, Rumyana Stefanova, Nikolay Natchev. Herpetological transect in the area Cholakova cheshma. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24-25.04.2020. | 2020 | Teodora Koynova, Dimitar Doichev, Desislava Taneva, Nikolay Natchev. Biodiversity investigation by the use of camera traps in Shumen Plateau Nature Park, Bulgaria. ECOLOGY AND ENVIRONMENT PROCEEDINGS OF THE EIGHTH STUDENT SCIENTIFIC CONFERENCE, Shumen, Bulgaria, 24-25.04.2020 | 2020 | Pavlova Borislava, Sevginar Ibryamova, Nina Arhangelova, Dimitar Dimitrov, Radoslav Ivanov, Nesho Chipev, Nikolay Natchev, Tsveteslava Ignatova-Ivanova. Integrative investigation on the ecology of the Black Sea mussel Mytilus galloprovincialis Lam. and its habitat. INTERNATIONAL SEMINAR OF ECOLOGY- 2020. DEDICATED TO 10TH ANNIVERSARY OF IBER-BAS 2020, ONLINE SEMINAR 23 - 24 April 2020 Sofia, Bulgaria | 2019 | Николай Начев, Теодора Койнова, Димитър Димитров, Ingmar Werneburg. Черепна кинетика при гръбначните животни – общо описание и нови експериментални данни. ШУ „Епископ Константин Преславски” XVII НАЦИОНАЛНА КОНФЕРЕНЦИЯ С МЕЖДУНАРОДНО УЧАСТИЕ \"Природни науки 2019\" (NCNS2019) | 2019 | Севгинар Ибрямова, Нина Архангелова, Теодора Койнова, Димитър Димитров, Жени Димитрова, Радослав Иванов, Карамфил Калчев, Нешо Чипев, Николай Начев, Цветеслава Игнатова-Иванова. Интегративно изследване върху екологията на черноморската мида Mytilus galloprovincialis Lam. и средата и на обитание. XVII НАЦИОНАЛНА КОНФЕРЕНЦИЯ С МЕЖДУНАРОДНО УЧАСТИЕ \"Природни науки 2019\" (NCNS2019) | 2019 | Севгинар Ибрямова, Нина Архангелова, Теодора Койнова, Димитър Димитров, Жени Димитрова, Радослав Иванов, Карамфил Калчев, Нешо Чипев, Николай Начев, Цветеслава Игнатова-Иванова. Микробиологична характеристика на черноморската мида Mytilus galloprovincialis Lam. и средата й на обитание. ШУ „Епископ Константин Преславски”, XVII НАЦИОНАЛНА КОНФЕРЕНЦИЯ С МЕЖДУНАРОДНО УЧАСТИЕ Природни науки 2019 04.10 - 06.10.2019г. | 2019 | Sevginar Ibryamova, N. Arhangelova, T. Koynova, D. Dimitrov, Zh. Dimitrova, R. Ivanov,K. Kalchev, N. Chipev, N. Natchev, Ts. Ignatova-Ivanova. The radioactivity and microbiological evaluation of Mussels (Mytilus galloprovincialis Lam.) and algae used as a bio-indicator species in the ecological monitoring of The Bulgarian Black Sea waters. 29-th Jubilee Annual Assembly of International Medical Association Bulgaria (IMAB) 09 - 12 May 2019.Hotel Admiral, Resort Golden Sands, near Varna, Bulgaria | 2019 | Pilar Jimenez Santander, Dimitar Dimitrov, Nikolay Nedyalkov, Aleksandar Doichinov, Darina Bachvarova, Nikolay Natchev. Data on cold bloodied tetrapods collaterally captured during long term monitoring of the myriapods on the Liljack heights (NE Bulgaria). SEVENTH STUDENT SCIENTIFIC CONFERENCE “ECOLOGY AND ENVIORNMENT. April 20, 2019. |
| 2024 | Pavlova B. K., S. F. Ibryamova, D. Bachvarova, D. D. Doichev, E. Tz. Stanachkova, S. Salim, N. D. Natchev, Ts. V. Ignatova-Ivanova, 2021, SPECIFIC MICROBIOLOGY SPECTRUM OF WHITE SAND MUSSELS FROM KEY SAMPLE SPOTS FROM BULGARIAN BLACK SEA AQUATORY, Journal of IMAB, ISSN: 1312-773X. ЦИТИРАНА В: Wang XY, Yan J, Xie J. 2024. Coculture of Acinetobacter johnsonii and Shewanella putrefaciens Contributes to the ABC Transporter that Impacts Cold Adaption in the Aquatic Food Storage Environment. Journal of Agricultural and Food ChemistryVol 72/Issue 18, (IF2023 – 5.7, Scopus, SJR – 1.11, Q1). | 2024 | Doychev DD. Longitudinal recovery gradient of macroinvertebrates during different hydrological scenarios in a downstream river reach. Journal of Limnology, 2023, 82:2125, eISSN 1723-8633 - pISSN 1129-5767 (Web of Science, SCOPUS, SJR2022 0.38, Q2, IF2023 – 1.6, H index – 50). ЦИТИРАНА В: Gartsiyanova, K., Genchev, S., Kitev, A. 2024 Assessment of WaterQuality as a Key Component in the Water–Energy–Food Nexus. Hydrology, 11, 36. https:// doi.org/10.3390/hydrology11030036 (Web of Science, Scopus, Q2, IF 3.2, SJR 0.68, H Index 34); | 2024 | Doychev DD. Longitudinal recovery gradient of macroinvertebrates during different hydrological scenarios in a downstream river reach. Journal of Limnology, 2023, 82:2125, eISSN 1723-8633 - pISSN 1129-5767 (Web of Science, SCOPUS, SJR2022 0.38, Q2, IF2023 – 1.6, H index – 50). ЦИТИРАНА В: Toschkova S., S. Ibryamova, D. Ch. Bachvarova, T. Koynova, E. Stanachkova, R. Ivanov, N. Natchev, Ts. Ignatova-Ivanova, 2024. The assessment of the bioaccumulation of microplastics in key fish species from the Bulgarian aquatory of the Black Sea. BioRisk 22: 17–31. https://doi.org/10.3897/biorisk.22.117668BioRisk 22: 17–31 DOI: 10.3897/biorisk.22.117668BioRisk (SCOPUS, SJR2022 0.25, Q2, H - index - 10). | 2024 | KOYNOVA Т., D. DOICHEV, N. NATCHEV, 2020, Impacts of resource limitations on the reproduction behaviour in the Agile Frog (Rana dalmatina) on the territory of Natura park “Shumensko plato”, ZooNotes 168: 1-4 (2020), ISSN 1313-9916. ЦИТИРАНА В: Vasileva V, Sabrieva S,Kabakchieva D, Emilova M (2024)Evaluation of the tourist functionsof protected areas: A case study of Shumen Plateau Nature Park. Journal of the Bulgarian Geographical Society 50: 149–168. https://doi.org/10.3897/jbgs.e117725 Journal of the Bulgarian Geographical Society 50: 149–168 (2024) DOI: 10.3897/jbgs.e117725. (Scopus, Q2, SJR2024 0.515, H Index - 9); |