İzmir İç Körfez İhtiyoplanktonu, Ege Denizi (2022-2023)

Yıl 2024, Cilt: 10 Sayı: 1, 28 - 37, 30.04.2024

Burcu Taylan , Ertan Dağlı

Öz

Türkiye’nin en önemli doğal limanlarından biri olan İzmir Körfezi; İzmir şehrinin çevresinde yer almakta olup çeşitli endüstriyel faaliyetler ile birlikte küçük nehirlerin deşarjı ve kanalizasyon girişlerinden dolayı büyük ölçüde kirlilikten etkilenmektedir. Atıksu arıtma tesisinin 2000 yılında devreye girmesi ile körfezdeki tür çeşitliliğini izleme çalışmaları önem kazanmıştır. Bu çalışmalardan biri de 2022 ve 2023 yıllarında gerçekleştirilen “İzmir Körfezi’nde Gerçekleştirilecek Tarama Faaliyetleri’nin İzmir Körfezi Denizel Ortamında Fiziksel, Kimyasal ve Biyolojik Etki ve Sonuçlarının İzlenmesi” projesidir. Çalışmamızda ihtiyoplankton örnekleri; proje kapsamında iç körfezde belirlenmiş 7 adet istasyondan vertikal plankton çekimleri olmak üzere yılda 2 kez (ilkbahar ve sonbahar) olarak gerçekleştirilmiştir. 2 yıllık örnekleme sonucunda 7 familya ve 8 türe ait toplam 10765 birey/ m2 yumurta, 542,3 birey/m2 prelarva, 2063,65 birey/m2 postlarva elde edilmiştir. Tespit edilen familya ve türler; Engraulidae (Engraulis encrasicolus), Clupeidae (Sardina pilchardus), Gobiidae (Gobius niger, Gobius paganellus), Mugilidae (Liza saliens), Callionymidae (Callionymus festivus), Blenniidae (Lipophrys pavo), Soleidae (Buglossidium luteum)’dir. Çalışmada elde edilen bulgular incelendiğinde iç körfezde özelikle E. encrasicolus türünün dominant durumda olduğu tespit edilmiştir.

Anahtar Kelimeler

İzmir iç körfez, yumurta, larva, ihtiyoplankton

Kaynakça

• Ak, Y. & Hoşsucu, B. (2001). Diversity, distribution, and abundance of pelagic Teleost fish eggs and larvae in İzmir Bay (in Turkish). Ege Journal of Fisheries and Aquatic Sciences, 18(1-2): 155-173. https://doi.org/10.12714/egejfas.2001.18.1.5000157207.
• Antunes, M., & Cunha, P.L. (2002). Skeletal anomalies in Gobius niger (Gobiidae) from Sado estuary, Portugal. Cybium, 26(3): 179-184.
• Cihangir, B. (1995). The abundance and Distribution of Eggs of European Sardine, Sardina pilchardus (Walbaum,1792) in İzmir Bay (Aegean Sea) (in Turkish) During the Spawning Season of 1989-1990. Turkish Journal of Zoology, 19: 17-26.
• Cihangir, B., Önen, M., Kocataş, A., Ergen, Z., Mater, S., Koray, T., Katağan, T., Özel, İ., Demirkurt, E., Tıraşın, E.M., Ünlüoğlu, A., Çınar, M.E., Çolak, F., Çoker, T., Öztürk, B. & Doğan, A. (1999). Some Biological Properties of İzmir Bay. Workshop On The Role Of The Physical, Chemical And Biological Processes In Marine Ecosystems. Ecosytem’99, Piri Reis Science Series, No. 2, İzmir, Turkey. Uslu, Özerler and Sayın (Editors): (19-48).
• Cunningham, J.T. (1889). Studies of reproduction and development of Teleosteans fishes occurring in the neighborhood of Plymouth. Journal of the Marine Biological Association of the United Kingdom, 1:10-54.
• Çakır, T.D., Örek, Y.A., Hoşsucu, B., Sever, T.M. & Sunlu, U. (2005). The Ichthyoplankton composition of İzmir’s Internal Bay (in Turkish). Ege Journal of Fisheries and Aquatic Sciences, 22(3-4): 317-323. https://doi.org/10.12714/egejfas.2005.22.3.5000156928
• Çoker, T. (1996). An investigation on larval abundance, distribution, and morphological properties of Blenniidae family in İzmir Bay (in Turkish). Msc. Thesis. E.U. Fisheries Faculty, 1-52 p.
• Çoker, T. (2003). The morphology and ecology of the pelagic eggs and larvae of Teleost fishes in İzmir Bay (in Turkish). PhD Thesis, E.Ü Fen Bilimleri Enstitüsü. Su Ürünleri Temel Bilimler Anabilim Dalı. Doktora Tezi. 539 s.
• Çoker, T., Mater, S. & Cihangir, B. (2006). The Changing of the fish fauna of İzmir’s Internal Bay (Between 1969-2005) (in Turkish). 5th National Congress of Coasts and Marine Areas of Turkey. May, 4-7 2004, Mugla, Turkey. pp. 855-869.
• Çoker, T. & Cihangir, B. (2018). Ichthyoplankton of Inner Part of Izmir Bay, Aegean Sea (2000-2005). Turkish Journal of Fisheries and Aquatic Sciences, 18: 57-67. https://doi.org/10.4194/1303-2712-v18_1_07
• D’ancona, U. (1933). Clupeoidei, In Uova, larve e stadi giovanili di Teleostei, Fauna Flora Golfo di Napoli. Pub. Stazione Zoologica Di Napoli. Monographia 38., part I-II-III 1064 P. Napoli.
• Dekhnik, T.V. (1973). Ihtioplankton Cernovo Moria, Haukova Dumka, Kiev., 1-235.
• Ehrenbaum, E. (1909). Eier and Larven von Fischen des Nordisches Planktons. Teil 2. Gadidae-Amphioxidae. Pp. 217-414. Reprinted 1964, Amsterdam, Asher, 197 p.
• Gürkaş, N. (1995). A study on abundance and dispersion of European Anchovy (Engraulis encrasicholus L. 1758) eggs and larvae in İzmir Bay (in Turkish). D.E.Ü. Msc Thesis, 38 p.
• Hoşsucu, B. (1992). Researches On Bio-Ecology of Eggs and Larvae of Pilchard (Sardina pilchardus, Walb.) In İzmir Bay (in Turkish). İstanbul University Journal of Aquatic Products, 2: 5-12.
• Hoşsucu, B. & Mater, S. (1995). An investigation on eggs and larvae of Round Sardinella (Sardinella aurita Val.,1847) İn Izmir Bay (Aegean Sea, Turkey) (in Turkish). Ege Journal of Fisheries and Aquatic Sciences, 12(1-2): 109-115.
• Hoşsucu, B. & Ak, Y. (2000). Ichthyoplankton of the Homa Lagoon (in Turkish). Ege Journal of Fisheries and Aquatic Sciences, 17(3-4): 241-256.
• Lebour, M.V. (1919). The young of the Gobiidae from the Neighbourhood of Plymouth. Journal of Marine Biol. Assoc. Vol. XII. P. 48-80., Text figs 1-3, Pls II-V.
• Koray, T., & Cihangir, B. (2002). Plankton blooming in marine environment, impacts on the fish and fisheries: an example Izmir Bay. In E. Özhan & N. Alpaslan (Eds). Coastal and Marine Environmental Areas of Turkey, 289 pp.
• Küçüksezgin, F., Kontaş, A., Altay, O., Uluturhan, E., & Darılmaz, E. (2004). An overview of the chemical properties of the Izmir Bay (in Turkish). Turkish Journal of Aquatic Life, 2: 361.
• Mater, S. (1977). Investigations on the biological and ecological characteristics of European pilchard’s (Sardina pilchardus, Walb., 1792) eggs and larvae in İzmir Bay (In Turkish). TÜBİTAK VI., Bilim Kongresi, 47.
• Mater, S. (1979). Effects of pollution on abundance and distribution of Teleost fish eggs in İzmir Bay (Aegean Sea, Turkey). Rapp. Comm. Int. Mer. Medit., 27(5): 147-150.
• Mater, S. (1981). An investigations on the abundance and distribution of the pelagic eggs and larvae of some Teleost Fishes in İzmir Bay (in Turkish). Doçentlik Thesis. E.Ü. Fen Fak. B. Oseanografi Bölümü ve Hidrobiyoloji Enst., Bornova, İzmir,118 s.
• Mater, S. (1983). Investigations on the pelagic eggs and larvae of Callionymidae (Pisces, Teleostei) species found in İzmir Bay (in Turkish). E.U. Faculty of Science Journal Series B, Vol.I: ( 264-272).
• Padoa, E. (1956). In Uova, Larvae e Stadi Giovanili Di Teleostei, Fauna Flora Golfo di Napoli. Monogr. 38(3/2): 687-774.
• Raffaele, F. (1988). Le uova gallegianti e le larva di Teleostei nel Golfo di Napoli., Mitth. Zool. Sta. Neapel., 8: 1-84.
• Russell, F.S. (1976). The eggs and planktonic stages of British marine Fishes, Academic Press, London, 524 pp. Taylan, B., & Hoşsucu, B. (2008). İzmir Körfezi'ndeki Teleost Balık Postlarvalarının Bolluk ve Dağılımı. Ege Journal of Fisheries and Aquatic Sciences, 25(3): 197-202.
• Taylan, B., & Hoșsucu, B. (2011). The ichthyoplankton of Izmir Bay (Central Aegean Sea of Turkey): 2008-2010 years study. Pakistan Journal of Zoology, 44(1): 241-248.
• Taylan, B., & Hoşsucu, B. (2015a). The abundance and distribution of some teleost fishes’ eggs and larvae in Izmir Bay between the years 2011-2013.
• Taylan, B., & Hoşsucu, B. (2015b). The Abundance and Distribution of Anchovy Engraulis encrasicolus (Linnaeus, 1758) Eggs and Larvae in Izmir Bay (Central Aegean Sea).
• TÜİK, 2023. Türkiye İstatistik Kurumu (https://www.tuik.gov.tr/, son erişim tarihi: 20.02.2024).
• Türker Çakır, D., Örek Ak, Y., Hoşsucu, B., Sever, T.M. & Sunlu, U. (2005). İzmir İç Körfezi İhtiyoplankton Kompozisyonu, E.U. Journal of Fisheries & Aquatic Sciences, 22(3-4): 317–323.
• Türköver, F. (1992). Investigations on The Abundance and Dispersion of The Gobiidae Family In Izmir Bay (in Turkish). D.E.Ü Marine Sci. And Tech. Institute, Live Marine Sources Branch, MSc Thesis, 39 p.
• Vodyanitskii, V.A. & Kazanova, I. (1954). Opredelitel Pelagicheskii lichinok ryb Chernogomoria (Key to do pelagic fish eggs and larvae of the Black Sea). Tr. Vses.naucho-Issled. Inst. Morsk. Rybn. Khoz. Okeanogr., 28: 240-325 (in Russian).
• Yalçın, K. (1984). Investigations on the Abundance and Distribution of Pelagic Eggs and Larvae of Teleost Fishes Living in the vicinity of Urla Bay (Aegean Sea, TURKEY) (in Turkish).Msc Thesis, E.Ü Fen Fak. Biyoloji Böl.,Hid. Anab. D.79 s.