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KARADENİZ İÇİN GELİŞTİRİLMİŞ YENİ NESİL EKOSİSTEM MODELİ BAŞARI ANALİZİ
Date
2016-06-03
Author
Salihoğlu, Barış
Fach Salihoğlu, Bettina Andrea
Akoğlu, Ekin
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https://hdl.handle.net/11511/80412
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INVESTIGATING PELAGIC FISH LARVAL DISPERSAL AND ECOLOGIC CONNECTIVITY IN THE BLACK SEA USING LAGRANGIAN DRIFTER MODELING
Çağdaş, Bulut; Fach Salihoğlu, Bettina; Department of Oceanography (2019-9-24)
In order to understand fish population dynamics, understanding the physical interaction of the current systems with pelagic fish larvae is necessary. Using a Black Sea circulation model output to undertake Lagrangian drifter studies embedded with a Lagrangian Flow Network the connectivity metrics; onshore transport, offshore transport, local retention and self recruitment are calculated for six different commercially important fish species in the Black Sea: anchovy (Engraulis encrasicolus ponticus), sprat (...
A COMPERATIVE ASSESSMENT OF THE BLACK SEA ANCHOVY STOCK BY USING HOLISTIC PRODUCTION AND ANALYTICAL AGE STRUCTURE MODELS
Akkuş, Gizem; Gücü , Ali Cemal; Department of Marine Biology and Fisheries (2016-10-10)
Economically the most important fish species in Turkey is the Black Sea anchovy (Engraulis encrasicolus). It provides 60% of the total fish catch amongst all Turkish fisheries. However this precious resource has, so far, been exploited recklessly disregarding the consequences. Moreover, the reasons for the dramatic fluctuations in the quantity of anchovy landings over the years are poorly known. A sound management plan targeting maximum sustainable yield therefore necessitates scientifically proven stock as...
KARADENİZ HAMSİSİ İLK ÜREME BOYU DEĞİŞİMİ VE BU DEĞİŞİMİN YAŞA DAYALI STOK DEĞERLENDİRME MODELLERİ ÜZERİNE ETKİSİ
Akkuş, Gizem; Gücü, Ali Cemal (2022-06-03)
Karadeniz hamsisi (Engraulis encrasicolus), Karadeniz’deki trofik seviyesi ve yüksek ticari değeri ile öncelikliyönetim planı uygulanan, kısa ömürlü, hızlı büyüyen ve yüksek üreme potansiyeline sahip olan küçükpelajik balık türüdür. İlk üreme bilgisi, balığın biyolojisinin anlaşılmasının yanı sıra, balıkçılık yönetimiaçısından da dikkate değerdir. Modelden bağımsız elde edilen ve bugüne kadar yeterince dikkatealınmayan olgunluk bilgisi, yaşa dayalı analitik modellerde üreyen stok biyokütlesi hesaplanmasında...
KARADENİZ’DE ÖTROFİKASYON ETKİLERİ: ÜST TABAKA BİYO-KİMYASAL ÖZELLİKLERİNDE UZUN DÖNEMLİ DEĞİŞİMLER
Salihoğlu, Barış; Yücel, Mustafa; Örek, Hasan; Tuğrul, Süleyman (2022-06-01)
Karadeniz, kendine özgü fiziksel ve biyo-kimyasal özelliklere sahip tipik bir kapalı denizdir. Karadeniz derin basenindeki kalıcı tuzluluk tabakalaşması sonucu, yüzeyden haloklin alt derinliklerine fiziksel prosesler yoluyla oksijen girdisi çok düşüktür; bunun sonucu olarak, haloklin alt sularında suboksik/anoksik (redox) geçiş tabakası oluşmuştur. Derinlik sınırları basen boyunca değişen haloklin içinde Karadeniz’e özgü belirgin kimyasal özellikler (nutriklin, NOx maksimum, suboksik bölge, P-minimum ve mak...
DISTRIBUTION OF CETACEAN AND THEIR FORAGING HABITATS IN THE BLACK SEA
Başkır, Saba; Gücü , Ali Cemal; Department of Chemical Oceanography (2019-10-04)
Cetacean hunting was banned in Turkey in 1983. In the following decades, as the ecological shifts in the Black Sea occur, over-increase in the cetacean populations were hypothesized as the cause of the decline in economically valuable pelagic fish species like Anchovy (Engraulis encrasicolus) and Sprat (Sprattus sprattus). These arguments create the pressure of re-legalization of direct killing of cetaceans, whom are assumed to be foraging mainly on Anchovy. These arguments, although raise concerns from the...
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B. Salihoğlu, B. A. Fach Salihoğlu, and E. Akoğlu, “KARADENİZ İÇİN GELİŞTİRİLMİŞ YENİ NESİL EKOSİSTEM MODELİ BAŞARI ANALİZİ,” 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80412.