Publication Network
Research Areas
Fisheries, Marine Biology, Biological Oceanography
Academic Titles / Tasks
2016 - Continues
2016 - ContinuesAssociate Professor
Istanbul University, Deniz Bilimleri Ve İşletmeciliği Enstitüsü, Deniz Bilimleri Ve İşletmeciliği Bölümü
2010 - 2016
2010 - 2016Research Assistant PhD
Istanbul University, Deniz Bilimleri Ve İşletmeciliği Enstitüsü, Deniz Bilimleri Ve İşletmeciliği Bölümü
2013 - 2015
2013 - 2015Researcher
GEOMAR Helmholtz Centre for Ocean Research Kiel, Evolutionary Ecology of Fishes
2001 - 2010
2001 - 2010Research Assistant
Istanbul University, Deniz Bilimleri Ve İşletmeciliği Enstitüsü, Deniz Bilimleri Ve İşletmeciliği Bölümü
Courses
Advising Theses
2020
2020Postgraduate
Kladosera popülasyonunun üreme stratejisi ve ekolojik ilişkisi
Demirel N.
D.Bedikoğlu(Student)
2020
2020Doctorate
Marmara Denizi Kıkırdaklı Balıklarının Beslenme Özellikleri ve Trofik Seviyelerinin Belirlenmesi
Demirel N.
G.Gül(Student)
Articles Published in Journals That Entered SCI, SSCI and AHCI Indexes
2022
2022The occurrence and feeding of a critically endangered shark species, Oxynotus centrina in the Sea of Marmara
Gül G., Yokeş B., Demirel N.
JOURNAL OF FISH BIOLOGY, vol.102, pp.1-7, 2022 (Journal Indexed in SCI)
2022
2022Reproductive strategies and population characteristics of key Cladocera species in the Sea of Marmara
Bedikoğlu D., Yilmaz I. N. , Demirel N.
REGIONAL STUDIES IN MARINE SCIENCE, pp.1-7, 2022 (Journal Indexed in SCI)
2022
2022Ontogenetic shift in diet and trophic role of Raja clavata inferred by stable isotopes and stomach content analysis in the Sea of Marmara
Gül G., Demirel N.
JOURNAL OF FISH BIOLOGY, vol.102, pp.1-10, 2022 (Journal Indexed in SCI)
2021
2021The biology and ecology of the invasive silver-cheeked toadfish (Lagocephalus sceleratus), with emphasis on the Eastern Mediterranean
Ulman A., Yildiz T. , Demirel N. , Çanak Ö. , Yemişken E. , Pauly D.
NEOBIOTA, vol.68, pp.145-175, 2021 (Journal Indexed in SCI)
2021
2021A moving target: Achieving good environmental status and social justice in the case of an alien species, Rapa whelk in the Black Sea
Demirel N. , Ulman A., Yildiz T. , Ertor-Akyazi P.
MARINE POLICY, vol.132, 2021 (Journal Indexed in SSCI)
2021
2021Evaluation of the comprehensive feeding strategy and trophic role of overexploited mesopredator species in the Sea of Marmara (northeastern Mediterranean)
Gul G., Demirel N.
ESTUARINE COASTAL AND SHELF SCIENCE, vol.259, 2021 (Journal Indexed in SCI)
2021
2021Low Pufferfish and Lionfish Predation in Their Native and Invaded Ranges Suggests Human Control Mechanisms May Be Necessary to Control Their Mediterranean Abundances
Ulman A., Harris H. E. E. , Doumpas N., Deniz Akbora H., Al Mabruk S. A. A. , Azzurro E., et al.
FRONTIERS IN MARINE SCIENCE, vol.8, 2021 (Journal Indexed in SCI)
2020
2020A comparison of market landings during fish spawning seasons to better understand the effectiveness of the temporal fishery closure in Turkey
Yıldız T. , Ulman A., Demirel N.
OCEAN & COASTAL MANAGEMENT, vol.198, 2020 (Journal Indexed in SCI)
2020
2020Stock dynamics and predator-prey effects of Atlantic bonito and bluefish as top predators in the Black Sea
Daskalov G. M. , Demirel N. , Ulman A., Georgieva Y., Zengin M.
ICES JOURNAL OF MARINE SCIENCE, vol.77, pp.2995-3005, 2020 (Journal Indexed in SCI)
2020
2020The Lost Fish of Turkey: A Recent History of Disappeared Species and Commercial Fishery Extinctions for the Turkish Marmara and Black Seas
Ulman A., Zengin M., Demirel N. , Pauly D.
FRONTIERS IN MARINE SCIENCE, vol.7, 2020 (Journal Indexed in SCI)
2020
2020Estimating stock status from relative abundance and resilience
Froese R., Winker H., Coro G., Demirel N. , Tsikliras A. C. , Dimarchopoulou D., et al.
ICES Journal of Marine Science, vol.77, pp.527-538, 2020 (Journal Indexed in SCI)
2020
2020First Large-Scale Eastern Mediterranean and Black Sea Stock Assessment Reveals a Dramatic Decline
Demirel N. , Zengin M., Ulman A.
Frontiers in Marine Science, vol.7, 2020 (Journal Indexed in SCI)
2019
2019On the pile-up effect and priors for L-inf and M/K: response to a comment by Hordyk et al. on "A new approach for estimating stock status from length frequency data" Reply
Froese R., Winker H., Coro G., Demirel N. , Tsikliras A. C. , Dimarchopoulou D., et al.
ICES JOURNAL OF MARINE SCIENCE, vol.76, pp.461-465, 2019 (Journal Indexed in SCI)
2018
2018Status and rebuilding of European fisheries
Froese R., Winker H., Coro G., Demirel N. , Tsikliras A. C. , Dimarchopoulou D., et al.
MARINE POLICY, vol.93, pp.159-170, 2018 (Journal Indexed in SSCI)
2018
2018A new approach for estimating stock status from length frequency data
Froese R., Winker H., Coro G., Demirel N. , Tsikliras A. C. , Dimarchopoulou D., et al.
ICES Journal of Marine Science, vol.75, pp.2004-2015, 2018 (Journal Indexed in SCI Expanded)
2017
2017Estimating fisheries reference points from catch and resilience
Froese R., Demirel N. , Coro G., Kleisner K. M. , Winker H.
FISH AND FISHERIES, vol.18, pp.506-526, 2017 (Journal Indexed in SCI)
2016
2016Reply to Andersen et al. (2016) "Assumptions behind size-based ecosystem models are realistic"
Froese R., Walters C., Pauly D., Winker H., Weyl O. L. F. , Demirel N. , et al.
ICES JOURNAL OF MARINE SCIENCE, vol.73, pp.1656-1658, 2016 (Journal Indexed in SCI)
2016
2016A critique of the balanced harvesting approach to fishing
Froese R., Walters C., Pauly D., Winker H., Weyl O. L. F. , Demirel N. , et al.
ICES JOURNAL OF MARINE SCIENCE, vol.73, pp.1640-1650, 2016 (Journal Indexed in SCI)
2016
2016Revisiting safe biological limits in fisheries
Froese R., Coro G., Kleisner K., Demirel N.
FISH AND FISHERIES, vol.17, pp.193-209, 2016 (Journal Indexed in SCI)
2015
2015New records of jellyfish species in the Marmara Sea
Isinibilir M. , Yılmaz I., Demirel N.
ITALIAN JOURNAL OF ZOOLOGY, vol.82, no.3, pp.425-429, 2015 (Journal Indexed in SCI)
2015
2015Ichthyoplankton dynamics in a highly urbanized estuary
Demirel N.
MARINE BIOLOGY RESEARCH, vol.11, pp.677-688, 2015 (Journal Indexed in SCI)
2015
2015An overall indicator for the good environmental status of marine waters based on commercially exploited species
Froese R., Demirel N. , Sampang A.
MARINE POLICY, vol.51, pp.230-237, 2015 (Journal Indexed in SSCI)
2014
2014Influence of the extreme conditions on the water quality and material exchange flux in the Strait of Istanbul
Altiok H. , Aslan A., Övez S., Demirel N. , Yuksek A. , Kiratli N., et al.
JOURNAL OF MARINE SYSTEMS, vol.139, pp.204-216, 2014 (Journal Indexed in SCI)
2014
2014Seasonal distribution of Trachurus mediterraneus (Steindachner, 1868) in the Golden Horn Estuary, Istanbul
Demirel N. , Yuksek A.
TURKISH JOURNAL OF ZOOLOGY, vol.38, pp.361-368, 2014 (Journal Indexed in SCI)
2013
2013Spawning Frequency of Trachurus mediterraneus (Carangidae) in The Sea of Marmara
Demirel N. , Yuksek A.
TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, vol.13, pp.441-446, 2013 (Journal Indexed in SCI)
2013
2013Reproductive biology of Trachurus mediterraneus (Carangidae): a detailed study for the Marmara - Black Sea stock
Demirel N. , Yuksek A.
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, vol.93, pp.357-364, 2013 (Journal Indexed in SCI)
2012
2012Weight-length relationships of 28 fish species in the Sea of Marmara
Demirel N. , Murat Dalkara E.
TURKISH JOURNAL OF ZOOLOGY, vol.36, pp.785-791, 2012 (Journal Indexed in SCI)
2007
2007Alien Crustacean Decapods from the Aegean Coast of Turkey
Yokeş M. B. , Karhan S. U. , Okus E. , Yuksek A. , Aslan-Yilmaz A., Yilmaz I. N. , et al.
AQUATIC INVASIONS, vol.2, no.3, pp.162-168, 2007 (Journal Indexed in SCI)
Articles Published in Other Journals
2022
2022Recovery potential and management options for European hake, Merluccius merluccius (Linnaeus, 1758), stocks in Turkish waters
Demirel N. , Gül G., Yüksek A.
Acta Biologica Turcica, vol.35, no.2, pp.1-9, 2022 (Other Refereed National Journals)
2020
2020Stomach content of three batoid species in the Sea of Marmara of the North-eastern Mediterranean
Gül G., Demirel N.
Journal of the Black Sea / Mediterranean Environment, vol.26, no.3, pp.294-309, 2020 (Refereed Journals of Other Institutions)
2007
2007Biodiversity in Western Part of Fethiye Bay
Okuş E., Altiok H., Yüksek A. , Yilmaz I. N. , Aslan A., Karhan S. Ü. , et al.
JOURNAL OF THE BLACK SEA/MEDITERRANEAN ENVIRONMENT, vol.19, pp.19-34, 2007 (Refereed Journals of Other Institutions)
Refereed Congress / Symposium Publications in Proceedings
2019
2019Life history and population of two marine Cladocerans.
Bedikoğlu D., Yilmaz I. N. , Demirel N.
MEDCOAST19, Muğla, Turkey, 22 - 26 October 2019, pp.1
2019
2019Diet overlap and trophic levels of two Mustelus species
Gül G., Demirel N.
MEDCOAST19, Muğla, Turkey, 22 - 26 October 2019, pp.1
2018
2018Reassessment of the changing fisheries for data poor stocks in the Eastern Mediterranean
DEMİREL N.
Fish Forum, Roma, Italy, 10 - 14 December 2018, pp.1-10
2017
2017Depletion of European hake stock in the Sea of Marmara
DEMİREL N.
52nd European Marine Biology Symposium, Piran, Slovenia, 25 - 29 September 2017, pp.70
2017
2017Estimating fisheries reference points from catch data for data-limited fish stocks in Turkish waters.
DEMİREL N.
ICES Annual Science Meeting, Florida, United States Of America, 18 - 21 September 2017, pp.65
2017
2017Implementation of CMSY method for estimating fisheries reference points in Turkish stocks
DEMİREL N.
ASLO 2017 Aquatic Sciences Meeting, Hawaii, United States Of America, 26 February - 03 March 2017, pp.66
2012
2012Bycatch and discarding experiments in the Marmara Sea demersal fishery
DEMİREL N. , Murat Dalkara E.
6. World Fisheries Congress, United Kingdom, 1 - 04 May 2012, pp.172
2010
2010Preliminary results on reproductive biology of Trachurus mediterraneus (Steindachner, 1868), in the northeastern Sea of Marmara.
DEMİREL N. , YÜKSEK A.
39. CIESM Congress, Italy, 1 - 04 August 2010, pp.491
2007
2007Summer ichtyoplankton data in the Sea of Marmara (July 1997, August 2000)
DEMİREL N. , YÜKSEK A. , Okuş E.
38. CIESM Congress, Turkey, 1 - 04 November 2007, pp.458
Books & Book Chapters
2018
2018The anticipated effects of oil spill on fish populations in case of an accident along the Turkish Straits System – a review of studies after several incidents from the world
Öz M. I. , Demirel N.
in: Oil Spill Along the Turkish Straits Sea Area; Accidents, Environmental Pollution, Socio-economic Impacts and Protection, Ünlü S.,Alpar B.,Öztürk B., Editor, Türk Deniz Araştırmaları Vakfı Yayınları, İstanbul, pp.261-271, 2018
2016
2016Demersal Fishes and Fisheries in the Sea of Marmara
Demirel N. , Gül G.
in: The Sea of Marmara - Marine Biodiversity, Fisheries, Conservation and Governance, Özsoy E.,Çağatay M.N.,Balkıs N.,Öztürk B., Editor, Turkish Marine Research Foundation Press, İstanbul, pp.630-643, 2016
2016
2016Status of Small Pelagic Fishes in the Sea of Marmara
Gül G., Demirel N.
in: The Sea of Marmara - Marine Biodiversity, Fisheries, Conservation and Governance, Özsoy E.,Çağatay M.N.,Balkıs N.,Öztürk B., Editor, Turkish Marine Research Foundation Press, İstanbul, pp.612-629, 2016
2006
2006GÖKOVA ÖZEL ÇEVRE KORUMA BÖLGESİNİN KIYI VE DENİZ ALANLARININ BİYOLOJİK ÇEŞİTLİLİĞİNİN TESPİTİ
Okuş E., Yüksek A. , Yökeş B., Yılmaz I. N. , Aslan A., Karhan S. Ü. , et al.
T.C. Çevre ve Orman Bakanlığı Özel Çevre Koruma Kurumu Başkanlığı, Ankara, 2006
Other Publications
2021
2021DENİZLERDE BÜTÜNLEŞİK KİRLİLİK İZLEME PROGRAMI 2014-2019 YILI MARMARA ÖZET RAPORU
Polat Beken Ç., Atabay H., Tan I., Sabri M., Bayram F., Tolun L., et al.
Technical Report, pp.1-119, 2021
Supported Projects
2018 - 2021
2018 - 2021Marmara Denizinde Berlam Balığının (Merluccius merluccius, Linnaeus 1758) Beslenme İlişkileri ve Trofik Düzeyi
Project Supported by Higher Education Institutions
DEMİREL EROL N. (Executive) , DURSUN F. , KESKİN E., GÜL G.
2020 - 2020
2020 - 2020
Marmara Denizi’nde Ticari Öneme Sahip Balık Stoklarının Güncel Durumu ve İleriye Dönük Senaryoların Modellenmesi
TUBITAK Project
(Project Abstract)
Demirel N. (Executive)
2015 - 2016
2015 - 2016
Marmara Denizi Berlam Balığı Stoklarının Ekosistem Yaklaşımı Çerçevesinde Sürdürülebilirlik Düzeyi
TUBITAK Project
(Project Abstract)
Demirel N. (Executive) , Yüksek A.
2005 - 2007
2005 - 2007
Marine Biological Diversity Assessment of Gökova Special Environmental Protection Area
Project Supported by Other Official Institutions
Okuş E.(Executive), Yüksek A. (Executive) , Yılmaz İ. N. , Demirel N. , Demir V. , Zeki S. , et al.
2002 - 2004
2002 - 2004
Marine Biological Diversity Assessment of Datça-Bozburun Specially Protected Area
Project Supported by Other Official Institutions
Okuş E.(Executive), Sur H. İ. , Yüksek A. , Yılmaz I. N. , Demirel N. , Taş S. , et al.
Activities in Scientific Journals
2016 - Continues
2016 - ContinuesFrontiers in Marine Science
Assistant Editor
2015 - Continues
2015 - ContinuesJournal of Applied Ichthyology
Committee Member
Memberships / Tasks in Scientific Organizations
2020 - 2020
2020 - 2020FAO-GFCM BlackSea4Fish
Head of Support Program
Scientific Refereeing
February 2022
February 2022H2020 Project
RIA Research and Innovation Actions Project, H2020, Turkey
February 2016
February 2016H2020 Project
RIA Research and Innovation Actions Project, European Commssion, Belgium
Scientific Consultations
2016 - 2017
2016 - 2017Project Consultancy
FAO BlueBRIDGE
Istanbul University, Deniz Bilimleri Ve İşletmeciliği Enstitüsü, Deniz Bilimleri Ve İşletmeciliği Bölümü, Turkey