Yazar "Er, Akif" için listeleme
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Farklı sucul sistemlerden izole edilen bakterilerin antibiyotik dirençliliklerinin karşılaştırılması
Bu çalışmada Doğu Karadeniz Bölgesi’nde iki farklı sucul sistemde (deniz ve tatlı su) bazı balıklardan izole edilen bakterilerde antibiyotik dirençliliği karşılaştırılmıştır. Denizel ortamdan Rize sahillerinden örneklenen, ... -
Histopathological effects of etiological and non-etiological agents in some fish gills
Yandı, İlhan; Kayış, Şevki; Er, Akif (Parlar Scientific Publications (P S P), 2017)The gill histology in fish is used as an identification of infectious and non-infectious diseases. This approach has also been used in recent years as a biomarker for the determination of pollution and as a tool in ... -
Histopathology of rainbow trout (oncorhynchus mykiss) and sturgeon (acipenser baerii) exposed to sublethal concentrations of cement
Kurtoğlu, İlker Zeki; Kayış, Şevki; Ak, Kübra; Gençoğlu, Songül; Düzgün, Ahmet; Ulutaş, Gökay; Er, Akif (Parlar Scientific Publications (P S P), 2016)In the present study, histopathologic effects of the cement mixing with water in aquatic environment on rainbow trout (Oncorhynchus mykiss) and Siberian sturgeon (Acipenser baerii) has been examined. Both of the two fish ... -
Intensity and prevalence of some crustacean fish parasites in Turkey and their molecular identification
Er, Akif; Kayış, Şevki (2015)In the present study, intensity, prevalence, and some pathologic effects of Caligus minimus, Nerocila spp., and Livoneca punctata on fishes extending from the eastern Black Sea coast of Turkey were determined. In addition, ... -
Investigation of long-term bisphenol A exposure on rainbow trout (Oncorhynchus mykiss): Hematological parameters, biochemical indicator, antioxidant activity, and histopathological examination
Minaz, Mert; Er, Akif; Ak, Kübra; Nane, İkbal Demet; İpek, Zeynep Zehra; Yalçın, Arzu; Kurtoğlu, İlker Zeki; Kayış, Şevki (Elsevier, 2022)As an industrial synthetic chemical, bisphenol A (BPA) has the potential to have physiologically and histologically adverse effects on aquatic organisms. BPA causes the reproductive disrupting of all vertebrates due to its ... -
Kültür kökenli Karaca Mersin balığı (Acipenser gueldenstaedtii)’nın hematolojik parametrelerinin referans değerlerinin belirlenmesi
Ak, Kübra; Er, Akif; Minaz, Mert (2023)Karadeniz havzasının doğal türlerinden olan Karaca mersin balığı (Acipenser gueldenstaedtii), ekolojik öneminin yanı sıra, et kalitesi ve havyarı ile ekonomik değeri de yüksek bir balık türüdür. Bu çalışmanın amacı, ... -
Nerocila bivittata (Cymothidae, Isopoda) infestation on Syngnathid Fishes in the Eastern Black Sea
Kayış, Şevki; Er, Akif (Eur Assoc Fish Pathologists, 2012)Fifty seahorses and 50 pipefish were sampled from 2010 to 2011, and examined for the presence of parasites. Unusual isopod infestations (Nerocila bivittata) were observed on pouch of Hippocampus guttulatus from 60 meters ... -
Parasites On Different Ornamental Fish Species In Turkey
Kayış, Şevki; Balta, Fikri; Serezli, Ramazan; Er, Akif (2013)Türkiye'nin Değişik Süs Balık Türlerindeki Parazitler Türkiye'de 2009 ve 2010 yılları arasında farklı akvaryum balık türleri, (Astronotus ocellatus, astronot ya da oscar (n=3), Carassius auratus, japon (n=11), Symphsodon ... -
Pathogenic effects of some common bacteria on trout in hatchery systems
Kayış, Şevki; Yılmaz, C.; Er, Akif (Eur Assoc Fish Pathologists, 2017)Compared to investigations involving later life stages, there are relatively limited reports of the effects of bacteria on egg hatching and very early survival of salmonid larvae. the present study investigated the effects ... -
Short-term exposure to bisphenol A (BPA) as a plastic precursor: Hematological and behavioral effects on oncorhynchus mykiss and vimba vimba
Minaz, Mert; Er, Akif; Ak, Kübra; Nane, İkbal Demet; İpek, Zehra Zeynep; Kurtoğlu, İlker Zeki; Kayış, Şevki (Springer, 2022)Bisphenol A (BPA) is the main ingredient of plastic materials that are the most used in the world and can cause environmental problems as a result of anthropogenic effects. It is adversely effect on organisms, especially ... -
The using potential of a new natural anesthetic agent on rainbow trout (Oncorhynchus mykiss): Chamomile oil (Matricaria chamomilla)
Ak, Kübra; Minaz, Mert; Er, Akif; Aslankoç, Rahime (Elsevier, 2022)One of the management problems in aquaculture is the negative impact of operational factors on fish health and welfare. In order not to adversely affect fish welfare, various anesthetic agents are applied in routine ... -
Vibrio vulnificus infection in horse mackerel (Trachurus mediterraneus) and its characteristic symptoms: An experimental study
Er, Akif; İpek, Zeynep Zehra; Arslan, M.N.; Kayış, Şevki (EAFP - European Association of Fish Pathologists, 2021)In the present study, the mortality and characteristic symptoms (bilateral exophthalmia and skin lesions) associated with Vibrio vulnificus infection in horse mackerel (Trachurus mediterraneus) are presented from an ...