Departments Department of Biology and Aquaculture Prof. Ivaylo Nikolaev Sirakov

Prof. Ivaylo Nikolaev Sirakov

 
Website
Scopus Author ID:
ORCID
 
Work experience
57189238044

 

• Date (from – to)
from 12.2021 – up to now
• Name and address of employer
Trakia University, Studentski grad, 6000 Stara Zagora, Bulgaria
• Type of business or sector
Education, science
• Occupation or position held
Professor
• Main activity and responsibility
Teach students that are specializing in ”Fish farming and aquaculture”, “Ecology and environmental protection” and “Zooengineering”, conducting research in aquaculture, working in different scientific projects
• Date (from – to)
from 06.2016 – 12.2021
• Name and address of employer
Trakia University, Studentski grad, 6000 Stara Zagora, Bulgaria
• Type of business or sector
Education, science
• Occupation or position held
Associate Professor
• Main activity and responsibility
Teach students that are specializing in ”Fish farming and aquaculture”, “Ecology and environmental protection” and “Zooengineering”, conducting research in aquaculture, working in different scientific projects
• Date (from – to)
from 09.2013 –10. 2014
• Name and address of employer
Zurich University of Applied Sciences, Grüental, CH-8820, Wädenswil, Switzerland;
• Type of business or sector
Science
• Occupation or position held
Researcher
• Main activity and responsibility
Conducting research in aquaponics, related with a project: “AQUA-SAFE: Enhancing safety and security of Aquaponics technology for fish and vegetable cultivation”.
• Date (from – to)
from 11.2012 to 12.2013
• Name and address of employer
Ministry of Environment and Water, 22 Mariya Luiza Blvd, Sofia
• Type of business or sector
Ecology and Environmental protection
• Occupation or position held
Key expert/Auditor (Nature 2000)
• Main activity and responsibility
Audit of project Mapping and determining conservation status of fishes’, activity 4, project DIR – 59318-1-2, ‘Mapping and identification of conservation status of natural habitats and species – Phase I.
• Date (from – to)
from 04.2011 –08.2013
• Name and address of employer
Trakia University, Studentski grad, 6000 Stara Zagora, Bulgaria
• Type of business or sector
Education, science
• Occupation or position held
Chief Assistant Professor
• Main activity and responsibility
Teach students that are specializing in ”Fish farming and aquaculture”, “Ecology and environmental protection” and “Zooengineering”, conducting research in aquaculture, working in different scientific projects
• Date (from – to)
from 10.09 –04.2011
• Name and address of employer
Trakia University, Studentski grad, 6000 Stara Zagora, Bulgaria
• Type of business or sector
Education, science
• Occupation or position held
Assistant Professor
• Main activity and responsibility
Teach students from specialities ”Fish farming and aquaculture”, “Ecology and environmental protection” and “Zooengineering”, conducting research in aquaculture, working in different scientific projects
• Date (from – to)
from 06.08 –05.2010
• Name and address of employer
Hach Lange LTD Bulgaria, 8 Kr.Srafov str., 1000 Sofia;
• Type of business or sector
Ecology , water management ,sales;
• Occupation or position held
Representative
• Main activity and responsibility
Presentation of the company ,consultation of costumers, sales, management and marketing
• Date (from – to)
from 01.2007 –06.2008
• Name and address of employer
Fish farm-Trynkovo
• Type of business or sector
Aquaculture 
• Occupation or position held
Consultant
• Main activity and responsibility
Water analysis and consultation for the cultivation of fish
• Date (from – to)
from 01.2004 –01.2008
• Name and address of employer
Trakia University – Stara Zagora, Studentski grad
• Type of business or sector
Education, science
• Occupation or position held
PhD Student (fish farming and industrial fishery)
• Main activity and responsibility
Conducting experiments in aquaculture science
Administrative experience
 
• Date (from – to)
from 2012 – up to now
• Name and type of organization providing education and training
Trakia University – Stara Zagora, Studentski grad
• Occupation or position held
Head of Aquaculture section
• Main activity and responsibility
Activities include not only but the following responsibilities:
 – assuring the setting and advancing of the academic strategy of the section in line with Faculty and University strategic plans and direction;
-assuring the fulfilment of the University´s responsibilities concerning students in respect of their admission, instruction, progress and examination;
-refresh and develop new programmes in order to attract new students and markets;
-create and exploit new opportunities for knowledge transfer activity in order to secure additional income streams and new areas of teaching and/or research;
Education and training
 
• Date (from – to)
from 01.2004 –11.2008
• Name and type of organization providing education and training
Trakia University – Stara Zagora, Studentski grad
• Primary subject
Aquaculture  – “Breeding of brown and rainbow trout with super- intensive technologies”
• Title of qualification
PhD (fish farming and industrial fishery)
• Level in national qualification
Doctor
 
• Date (from – to)
from 01.2003 to 01.2005
• Name and type of organization providing education and training
Trakia University – Stara Zagora, Studentski grad
• Primary subject   
Ecology and environmental management
• Title of qualification
Master
• Level in national qualification
Master
 
• Date (from – to)
from 09.1998 to 12.2002
• Name and type of organization providing education and training
Trakia University – Stara Zagora, Studentski grad
• Primary subject   
Ecology and environmental protection
• Title of qualification
Bachelor
• Level in national qualification
Bachelor
 
• Date (from – to)
To 1998
• Name and type of organization providing education and training
Secondary school of nature and mathematics 
• Primary subject   
Biology and French, English and Russian languages
 
Personal skills and competence
 

 

mother tongue
Bulgarian
others languages
 
 
French
• reading skills
very good
• writing skills
good
• verbal skills
good
 
English
• reading skills
very good
• writing skills
very good
• verbal skills
very good
 
Russian
• reading skills
very good
• writing skills
good
• verbal skills
very good
 
 
Social skills and competences
Experience in preparation and management of projects, intercultural competences, highly motivated and able to work under pressure, good communicative abilities.
Teaching disciplines
 

 

1. Aquaculture-introduction and principles;
2. Ecology of hydrobionts and aquaculture;
3. Ichthyology;
4. Hydrochemistry and water quality;
5. Freshwater aquaculture;
Selected projects
1. Sirakov I., Gabriele Hoerstgen-Schwark (2011). The effect of early and later high temperature treatments on sex ratio in Nile Tilapia (Oreochromis niloticus). Georg-August Universität Göttingen, Göttingen, Germany. (DAAD).
2. Sirakov I., 2011. The effect of algae meal (Spirulina) on the growth performance and carcass parameters of rainbow trout (Oncorhynchus mykiss). Scientific project 11J/11 (Trakia University, Bulgaria).
3. Staykov Y., Atanasov, V., Sirakov, I., Pascalev S.(2011): Development of technological parameters for breeding and cultivation in zander (Stizostedion lucioperca). Scientific project 1J/11 (Trakia University, Bulgaria).
4. Sirakov I., 2012. The usage of aquatic floating macrophytes (Lemna and Wolffia) as biofilter in Recirculation Aquaculture System (RAS). Scientific project 8J/12 (Trakia  University, Bulgaria).
5. Staykov Y., Sirakov, I., Nikolov, G., Atanasov, A., Petrov A., (2012): Development of technological parameters for breeding and cultivation in European perch (Perca fluviatilis L.). Scientific project 2J/12, (Trakia University, Bulgaria).
6. MoEW, 2011-2013.Mapping and determining conservation status of fish, activity 4, audit of project DIR – 59318-1-2, ‘Mapping and identi¬cation of conservation status of natural habitats and species – Phase I’, MoEW, Bulgaria.-key expert. 
7. Sirakov I., M. Lutz, A. Graber, A.Mathis, Y. Staykov, R. Junge (2013-2014): AQUA-SAFE: ENHANCING SAFETY AND SECURITY OF AQUAPONICS TECHNOLOGY FOR FISH AND VEGETABLE CULTIVATION.Zurich university of applied sciences. Wädenswil, Switzerland.(SCIEX NMS.CH).
8. Sirakov I., 2015. Determination of optimal flow rate in aquaponics, 5AF/15 (Trakia University, Bulgaria).
9. Sirakov I., 2016. In vitro animicrobial activity of extracts from different medicinal plants against fish pathogen Saprolegnia parasitica, 5АФ/16, (Trakia University, Bulgaria).
10. Biota monitoring for determination of priority substances – key expert sampling- MoEW, Bulgaria.-key expert.
11. Smart agriculture, 2021. National scientific program. Ministry of education and sciences
12.Smart animal sciences, 2021. National scientific program. Ministry of education and sciences

Scientific publications

Publications with peer review process
  1.  Sirakov I., Velichkova K., Slavcheva-Sirakova, D., 2021. The Proviotic® supplemented diet on growth performance, biochemical blood parameters and meat quality of common carp (Cyprinus carpio L.) and growth of lettuce (Lactuca sativa) cultivated in aquaponics. Journal of Hygienic Engineering and Design, 33, 26-30, (SJR=0.16), Q4.
  2. Velichkova, K., Sirakov, I., 2021.  In vitro test of inhibition effect of Lemna minuta, Chlorella vulgaris and Spirulina sp. extracts on Saprolegnia parasitica, AACL Bioflux, 14(1), 349-356. (SJR=0.28), Q3.
  3.  Velichkova, K., Sirakov, I., Dinev, T., 2020. Removal of indicator and pathogenic bacteria by Lemna minuta in an aquaponic recirculation system. Fresenius Environmental Bulletin, 29 (4), 2222-2227. (IF – 0.6), Q3;
  4. Velichkova, K., Sirakov, I., Veleva, P., 2020. Use of Lemna minuta Kunth. for composition of sustainable diets and influence on hydrochemical, technological and blood biochemical parameters in common carp (Cyprinus carpio L.) cultivated in aquaponics. Bulgarian Journal of Agricultural Science, 26 (3), 274–279. (SJR – 0.196), Q3;
  5. Velichkova, K., Sirakov, I., Stoyanova, S., 2020. Growth efficiency, biochemical blood parameters and meat quality of rainbow trout (Oncorhynchus mykiss W.), fed with supplement of sweet flag extract (Acorus calamus L.). Bulgarian Journal of Agricultural Science, 26 (Suppl. 1), 180-185. (SJR – 0.196), Q3;
  6. Velichkova, K., Sirakov, I., Vylkova, E., 2020. The effect of sweet flag (Acorus calamus L.) supplemented diet on growth performance, biochemical blood parameters and meat quality of rainbow trout (Oncorhynchus mykiss W.) and growth of lettuce (Lactuca sativa L.) cultivated in aquaponic recirculation system. AACL Bioflux, 13(6), 3840-3848. (SJR – 0.28), Q3;
  7. Cherpokov, J., Sirakov, I., Stoyanova, S., Velichkova, K., Simitchiev, A., Nenov, V., Slavov, T., 2020. The influence of Nu Pro® as a substitution of fish meal on the growth performance of rainbow trout (Oncorhynchus mykiss W.) cultivated in recirculating system. Bulgarian Journal of Agricultural Science, 26(1), 223–231. (SJR=0.196), Q3.
  8. Koshinski, R., Velichkova, K., Sirakov, I., Stoyanova, S., 2020. Effect of Angelica archangelica L. extract on growth performance, meat quality and biochemical blood parameters of rainbow trout (Oncorhynchus mykiss W.), cultivated in a recirculating system. Bulgarian Journal of Agricultural Science, 26(1), 232–237. (SJR=0.196), Q3.
  9. Kurdomanov, A., Sirakov, I., Stoyanova, S., Velichkova, K., Nedeva, I., Staykov, Y., 2019. The effect of diet supplemented with Proviotic® on growth, blood biochemical parameters and meat quality in rainbow trout (Oncorhynchus mykiss) cultivated in recirculation system. AACL Bioflux, 12 (2), 404-412. (SJR – 0.27), Q3;
  10. Velichkova, K., Sirakov, I., Stoyanova, S., Zhelyazkov, G., Staykov, Y., Slavov, T., 2019. Effect of Acorus calamus L. extract on growth performance and blood parameters of common carp (Cyprinus carpio L.) cultivated in a recirculation system. Journal of Central European Agriculture, 20(2), 585-591. (SJR=0.2), Q4;
  11. Sirakov, I., Velichkova, K., Stoyanova, S., Zhelyazkov, G., Staykov, Y., 2019. The effect of diet supplemented with dandelion’s (Taraxacum officinale) extract on the productive and blood parameters of common carp (Cyprinus carpio L.), cultivated in the recirculation system. Macedonian Veterinary Review, 42(2), 131-139. (SJR=0.19), Q3;
  12. Velichkova, K., Sirakov, I., 2019. The effect of diet supplemented with Lemna minuta Kunth extract on technological parameters, blood parameters and meat quality in rainbow trout (Oncorhynchus mykiss W.) cultivated in aquaponic recirculation system. Journal of Hygienic Engineering and Design, 28, 22-27. (SJR=0.16), Q4;
  13. Sirakov, I., Velichkova, K.,  Slavcheva-Sirakova, D., 2019. The effect of yarrow (Achillea millefolium) supplemented diet on growth performance, biochemical blood parameters and meat quality of rainbow trout (Oncorhynchus mykiss W.) and growth of lettuce (Lactuca sativa) cultivated in aquaponic recirculation system. Journal of Hygienic Engineering and Design, 28, 28-32. (SJR=0.16), Q4;
  14. Velichkova, K., Sirakov, I., 2019. Accumulation, growth and photosynthetic response of Lemna minuta Kunth to heavy metal pollution. Fresenius Environmental Bulletin, 28 (6), 4579-4583. (IF – 0.6), Q3
  15. Velichkova, K., Sirakov, I., Denev, S., 2019. In vitro antibacterial effect of Lemna minuta, Chlorella vulgaris and Spirulina sp. extracts against fish pathogen Aeromonas hydrophila. AACL Bioflux, 12(3), 936-940. (SJR – 0.26), Q3.
  16. Velichkova, K., Sirakov, I., Stoyanova, S., Staykov, Y., 2019. Cultivation of lettuce (Lactuca sativa L.) and rainbow trout (Oncorhynchus mykiss W.) in the aquaponic recirculation system. Journal of Central European Agriculture, 20(3), 967-973. (SJR – 0.2), Q4;
  17. Velichkova, К., Sirakov, I., Slavcheva-Sirakova, D., 2019. Bioaccumulation, growth and photosynthetic response of a new found in Bulgaria invasive species Lemna minuta Kunth and L. valdiviana Phil. to heavy metal pollution. Planta Daninha, 37. (IF- 0.5), Q3;
  18. Sirakov I., 2019.The cleaning capacity and productivity of LECA and Floating raft aquaponic filters in an integrated recirculation system. Bulgarian Journal of Agricultural Science, 26(1), 243-247. (SJR – 0.196), Q3;
  19. Sirakov, I., 2019. The influence of two different lights intensities on cleaning capacity and productivity in aquaponic filter part of biological filtration in recirculation aquaculture system. AACL Bioflux, 12(5), 1746-1754. (SJR – 0.26), Q3.
  20. Sirakov, I., Velichkova, K. 2018. The Influence of Aquaponically Grown Duckweed (Lemna minuta Kunth) Used for Composition of Sustainable Diets on Hydrochemical and Technological Parameters in Carp (Cyprinus carpio L.). Turkish Journal of Fisheries and Aquatic Sciences 18: 1037-1044 (2018). DOI: 10.4194/1303-2712-v18_9_03   (IF – 0.5) Q3
  21. Zhelyazkov, G., Stoyanova, S., Sirakov, I., Velichkova, K., Staykov, Y. 2018. Effect of nutmeg extract supplementation on some productive traits and economic efficiency of common carp (Cyprinus carpio L.) cultivated in recirculation system. Agricultural science and technology, VOL. 10, No 1, pp 54 – 56, 2018 DOI: 10.15547/ast.2018.01.013-6
  22. Stoyanova, S., Zhelyazkov, G., Velichkova, K., Sirakov, I., Staykov, Y. 2018. Effect of savory extract supplementation on some productive traits and economic efficiency of common carp (Cyprinus carpio L.). Aquatic Research 1(3), 110-114, DOI: 10.3153/AR18012-2.0
  23. Velichkova, K., Sirakov, I. 2018.  Growth parameters, protein and photosynthetic pigment content of Chlorella vulgaris cultivated under photoautotrophic and mixotrophic conditions. Bulg. J. Agric. Sci, 24(1), 150-155. (SJR=0.196, 2014). Q3
  24. Sirakov, I., Velichkova, K., Stoyanova, S., Kaymakanova, M., Slavcheva-Sirakova, D., Atanasova, R., Staykov, Y. 2018.  Effect of synbiotic dietary supplementation on growth, physiological and immunological parameters in common carp (Cyprinus carpio L.) fingerlings and on yield and physiological parameters in lettuce (Lactuca sativa L.), cultivated in mesocosmos aquaponic system. Bulg. J. Agric. Sci, 24(1), 140-149. (SJR=0.196, 2014). Q3
  25. Velichkova, K., Sirakov, I., Rusenova N., Beev G., Denev S., Valcheva N., Dinev T. 2018 In vitro antimicrobial activity on Lemna minuta, Chlorella vulgaris and Spirulina sp. extracts. Fresenius Environmental Bulletin, 27(8): 5736-5741. (IF – 0.6) Q3
  26. Sirakov, I. Velichkova, K,  Slavcheva-Sirakova, D. 2018. In vitro study of the use of some medicinal plants against the fish pathogen Aeromonas hydrophila. Scientiic Bulletin. Series F. Biotechnologies, Vol. XXII, 168-171.
  27. Sirakov I., S.Stoyanova, . Influence of two extract types (krill and chironomus) as feed attractants on growth, survival and feed utilization in of European perch (Perca fluviatilis) fingerlings -Indian journal of fisheries
  28. Koshinski, R., Velichkova, K., Sirakov, I., Stoyanova, S. 2018. Growth performance, biochemical blood parameters and meat quality of rainbow trout (Oncorhynchus mykiss W.) fed with Cnicus benedictus L. extract. Trakia Journal of Sciences, 4, 300-306.
  29. Stoyanova, S., Zhelyazkov, G., Sirakov, I., Velichkova, K., Staykov, Y. 2018. Influence of dietary cinnamomum verum extract on the growth and economic efficacy of common carp /Cyprinus carpio L./, reared in a recirculation system. Trakia Journal of Sciences, 4, 307-312.
  30. Sirakov, I., Velichkova, K., Stoyanova, S., Staykov, Y. 2018. Growth performance, biochemical blood parameters and meat quality of rainbow trout (Oncorhynchus mykiss W.) fed with licorice (Glycyrrhiza glabra L.) supplemented diet. Trakia Journal of Sciences, 4, 284-291.
  31. Staikov Y., Sirakov I., 2018. Installation for integrated cultivation of hydrobionts and plants at closed cycle .
  32. Staykov Y., Sirakov, I., Zhelyazkov G., Stoyanova St., 2018. Mobile, modular type recirculation installation, for integrated and sustainable cultivation of hydrobionts and plants
  33. Staykov Y., Sirakov, I., Zhelyazkov G, 2018. Multitrophic system for aquaculture production in floating and submersible cages
  34. Sirakov, I., Velichkova, K., Stoyanova, S., Slavcheva-Sirakova, D., Staykov, Y., 2017. Comparison between two production technologies in an experimental aquaponicrecirculation system, Land Reclamation, Earth Observation & Surveying, Environmental Engineering. Vol. VI, 98-103.
  35. Velichkova, K., Sirakov, I., Valkova, E., Stoyanova S., Kostadinova G., 2017. Bioacumulation and protein content of Lemna minuta Kunth and Lemna valdiviana Phil. In Bulgarian water reservoirs, Land Reclamation, Earth Observation & Surveying, Environmental Engineering. Vol. VI,104-107.
  36. Sirakov, I., Lutz, M., Graber, A., Mathis, A., Staykov, Y., Smits, T. H., Junge, R., 2016. Potential for combined biocontrol activity against fungal fish and plant pathogens by bacterial isolates from a model aquaponic system. Water, 8(11), 518.
  37. Stoyanova, S., Sirakov, I., Velichkova, K.,Staykov, Y., 2016.Heavy metal content in the meat of common carp (C.carpio L.) and rainbow trout (O.mykiss W.) cultivated at different technologies. Agricultural science and technology, 8(1),90-93.
  38. Velichkova K., Sirakov, I., Beev, G., Denev, S. Pavlov, D., 2016. Treatment of wastewater originated from aquaculture and biomass production in laboratory algae bioreactor using different carbon sources. Sains Malaysiana, 45(4), 601-608.
  39. Stoyanova, S. Sirakov, I., Velichkova, K., Staykov, Y., 2016. Chemical composition and content of heavy metals in the flesh of the different marine fish species. J. BioSci. iotech.,SE/ONLINE:297-301.
  40. Sirakov I., Velichkova, K., Stoyanova, S. Dinev D., Staykov Y., 2015. Application of Natural Zeolites and Macrophytes for Water Treatment in Recirculation Aquaculture Systems. Bulg. J. Agric. Sci., Supplement 1, 21: 147–153.
  41. Sirakov, I., Slavcheva-Sirakova D., 2015. The influence of climate changes on the hydrobionts: a review. Journal of Biodiversity and Environmental Sciences (JBES), 6 (3), 315-329.
  42. Sirakov, I., Velichkova, K., Stoyanova, S., Staykov Y., 2015. The importance of microalgae for aquaculture industry. Review. International Journal of Fisheries and Aquatic studies 2(4):81-84.
  43. Sirakov, I., Velichkova, K., Stoyanova S., 2015. Comparison of microbiological parameters in experimental and conventional recirculation aquaculture systems. Journal of Applied Biology and Biotechnology Vol. 3 (01), pp. 021-023.
  44. Velichkova, K., Sirakov I., Staykov Y., 2015. Integrated use of two microalgal species for the treatment of aquaculture effluent and biomass production. Environmental Engineering and Management Journal (accepted).
  45. Sirakov I., 2015. Flesh quality in rainbow trout (Oncorhynchus mykiss W.) and brown trout (Salmo trutta m. fario L.) cultivated in recirculation aquaculture system. International Journal of Current Microbiology and Applied Sciences (IJCMAS) (4):50-57.
  46. Stoyanova S., Velichkova K., Nikolov G., Atanasoff A., Sirakov I., 2014. Oxygen uptake in a freshwater air-breathing fish with macrophytes. Turkish Journal of Agricultural and Natural Sciences 11/2014; 1(1):915-918.
  47. Velichkova K., Sirakov I., Stoyanova S., 2014. Bioremediation of wastewater originate from aquaculture and biomass production from microalgae species – Nannochloropsis oculata and Tetraselmis chuii. Scientific bulletin. Series F. Biotechnologies, Vol. XVIII, 83-88.
  48. Sirakov I., Velichkova K., 2014. Bioremediation of wastewater originate from aquaculture and biomass production from microalgae species -Nannochloropsis oculata and Tetraselmis chuii. Bulgarian Journal of Agricultural Science, 20 (No 1), 66-72.
  49. Sirakov, I.,Velichkova, K., Beev, G., Staykov Y., 2013. The influence of organic carbon on bioremediation process of wastewater originate from aquaculture with use of microalgae from genera Botryococcus and Scenedesmus. Agricultural science and technology, Vol. 5, No 4, pp 443 – 447.
  50. Atanasoff, A. Nikolov,G., Staykov, Y., Zhelyazkov,G., Sirakov,I., 2013. PROXIMATE AND MINERAL ANALYSIS OF ATLANTIC SALMON (SALMO SALAR) CULTIVATED IN BULGARIA. Biotechnology in Animal Husbandry 29 (3), p 571-57.
  51. Velichkova, K., Sirakov, I., 2013. The Usage of Aquatic Floating Macrophytes (Lemna and Wolffia) as Biofilter in Recirculation Aquaculture System (RAS). Turkish Journal of Fisheries and Aquatic Sciences, 13: 101-110.
  52. Velichkova K, Sirakov I, Georgiev G. 2013. Cultivation of Scenedesmus dimorphus strain for biofuel production. Agricultural science and technology, vol. 5, No 2, pp 181–185.
  53. Киряков,И. Величкова,К. Сираков,И., 2013. Придружаващи и масово развиващи се видове и групи при род SCENEDESMUS MEYEN (CHLOROPHYTA, CHLOROCOCCALES). Science & Technologies: Nautical & Environmental studies, Volume III, Number 2, 19-24.
  54. Kiryakov, I., Velichkova,K., Sirakov, I.,. 2013. Accompanying and widely developed algal species and groups in genus SCENEDESMUS MEYEN (CHLOROPHYTA, HLOROCOCCALES). Science & Technologies: Nautical & Environmental studies, Volume III, Number 2, 19-24.
  55. Velichkova, K., Sirakov, I., Georgiev, G., 2012. Cultivation of Botryococcus braunii strain in relation of its use for biodiesel production. J. BioSci. Biotech., SE/ONLINE: 157-162.
  56. Sirakov I., Velichkova K., Nikolov G., 2012 .The effect of algae meal (Spirulina) on the growth performance and carcass parameters of rainbow trout (Oncorhynchus mykiss).J. BioSci. Biotech., SE/ONLINE:151-156.
  57. Sirakov I., Staykov Y., Ivancheva, E., Nikolov, G., Atanasov A., 2012. Morphometric characteristic of European perch (Perca fluviatilis) related with sex dimorphism. Agricultural science and technology, vol. 4, №3, 203 – 207.
  58. Marinova, M., Sirakov, I., Staykov, Y. & Ivancheva, E., 2011. Body and carcass parameters of sea bream (Sparus aurata L.) and sea bass (Dicentrarchus labrax L.). Agricultural science and technology, vol. 3, №4, 299 – 301.
  59. Sirakov I., Staykov Y., Djanovski G., 2011. Consumption of dissolved oxygen in rainbow trout (Oncorhynchus mykiss) cultivated in raceway. Agricultural science and technology, Vol. 3, №3, 220 – 223.
  60. Velichkova K., Sirakov, I., Kiryakov I., 2011. Macrophytes in the Reservoir-cooler ”Ovcharitsa”. Ecology and future, vol. X, №1-2, 33 – 35.
  61. Gatseva, P., Slavcheva, D., Sirakov I., Slavchev S.,2010. Сравнителна оценка на микробиологичното замърсяване на храните в пет области на Южна България [Comparative evaluation of microbiological food contamination in five districts of South Bulgaria]. Scripta Periodica, vol. XIII, №2, 28 – 35.
  62. Gatseva, P., Slavcheva, D., Sirakov I., Slavchev M.,2009. Мониторинг на храни относно замърсяването им с листерии [Food monitoring about their Listeria contamination]. Scripta Periodica, Vol. XII, №2, 30 – 36.
  63. *Sirakov I., 2008. Автореферат на дисертационен труд на тема “Отглеждане на балканска и дъгова пъстърва при суперинтензивни технологии “[Breeding of brown and rainbow trout using super-intensive technologies (PhD thesis-summary)], 39 pp.
  64. Sirakov I., Ivancheva, E., 2008. Influence of stocking density on the growth performance of rainbow trout and brown trout grown in recirculation system.Bulgarian Journal of Agricultural Science, vol. 14, №2, 150-154.
  65. Sirakov I., 2007. Отглеждане на дъгова пъстърва (Oncorhynchus mykiss) в затворена система при различна гъстота на посадката [Cultivation of rainbow trout (Oncorhynchus mykiss) in closed system to the different density]. Journal of Animal Science, vol. XLIV, №6, 108 – 111.
  66. Sirakov I., Ivancheva, E., 2003. Хидрохимична характеристика на язовир Доспат [Hydrochemical characteristics of dam Dospat].Ecology and future, vol. II, №3, 39 – 42.
Technical skills and competences
computer  – Ms Office, Internet and several statistical programs
 
Academic and research awards and fellowships
Deutscher Akademischer Austauschdienst (DAAD)- Research grants for university academics and scientists (2011), Germany;
European Economic Area (EEA) grant (2012), Norway;
SCIEX (2013) Scientific Exchange Programme NMS-CH, Switzerland;
Patents and Utility models
Staykov Y., Sirakov I., 2017. Installation for integrated cultivation of hydrobionts and plants at closed cycle. Utility model №3765/31.08.2017, published in Official bulletin of Patent office of Republic of Bulgaria №8/31.08.2017.
Staykov Y., Sirakov, I., Zhelyazkov G., 2017. "MULTITROPHIC SYSTEM FOR AQUACULTURE PRODUCTION IN FLOATING AND SUBMERSIBLE CAGES". Utility model №2658/31.07.2017, published in Official bulletin of Patent office of Republic of Bulgaria №7/31.07.2017.
Staykov Y., Sirakov, I., Zhelyazkov G., Stoyanova St., 2018. Mobile, modular type recirculation installation, for integrated and sustainable cultivation of hydrobionts and plants, Utility model №3017/12.02.2018
Book
Sirakov, I., 2017. Aquaculture – introduction and principles. Training Manual, Fastumprint EOOD, Stara Zagora 231p, (bg).
Staykov, Y., Sirakov I., 2021. Aquaculture and environment, Fastumprint Д, София, 186 p (bg)..

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