Kurum Yazarı "Er, Akif" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Acute toxicity and histopathological assessment of bisphenol a in danube sturgeon (Acipenser gueldenstaedtii) larvae
Minaz, Mert; Er, Akif; Ak, Kübra; Kurtoğlu, İlker Zeki; Kayış, Şevki (HARD Publishing Company, 2024)Bisphenol A (BPA), an important component of the plastics industry, is characterized as an endocrine disrupting toxic substance for aquatic organisms. This study focused on the toxic effects of BPA on endangered Danube ... -
Acute toxicity of pozzolanic cement on two crustacean species, water flea (Daphnia magna) and gammarus komareki
Er, Akif; Kayış, Şevki (Springer, 2021)This study was conducted to determining the values of LC50, mortality rates and DNA damages (Daphnia magna) of species exposed to pozzolanic cement concentrations of 50, 100, 150, 200, 250, and 300 mg/L for 24 h. To compare ... -
Aeromonas hydrophila as a causative agent of blue sac fry syndrome in different trout species
Kayış, Şevki; Er, Akif; Yılmaz, Ceyran; Düzgün, Ahmet; Köse, Özay; Kurtoğlu, İlker Zeki (Wiley-Blackwell, 2015)Blue sac fry syndrome (BSFS) occurs in alevins of rainbow trout Oncorhynchus mykiss (Walbaum) and brook trout Salvelinus fontinalis, (Mitchill) and can cause substantial losses during the incubation period. It is generally ... -
Assessment of hematological indicators, histological alterations, and DNA damage in Danube sturgeon (Acipenser gueldenstaedtii) exposed to the organophosphate malathion
Er, Akif; Minaz, Mert; İpek, Zeynep Zehra; Ak, Kübra; Kurtoğlu, İlker Zeki; Kayış, Şevki (Elsevier, 2023)This study focused on organophosphate malathion toxicity in Danube sturgeon (Acipenser gueldenstaedtii) and its negative effects in sub-lethal concentration. In this context, the LC50 value of fish exposed to five different ... -
Bacterial pathogens and health problems of Acipenser gueldenstaedtii and Acipenser baerii sturgeons reared in the eastern Black Sea region of Turkey
Kayış, Şevki; Er, Akif; Kangel, P.; Kurtoğlu, İlker Zeki (Shiraz Univ, 2017)Farming sturgeons is an economically important practice in a number of Asian and European countries. However, since it is not widely implementedin Turkey, fertilized eggs necessary for research and industrial activities ... -
Bisphenol a used in plastic industry negatively affects wild vimba bream (Vimba vimba)
Minaz, Mert; Er, Akif; Nane, İkbal Demet; İpek, Zeynep Zehra; Aslankoç, Rahime (Central Fisheries Research Inst, 2023)Used as a component of polycarbonate plastics and epoxy resins in the modern industrial world, bisphenol A (BPA) is one of the highest volume produced industrial chemicals worldwide. BPA causes important environmental ... -
Dandelion root extract in trout feed and its effects on the physiological performance of Oncorhynchus mykiss and resistance to Lactococcus garvieae infection
Köse, Özay; Karabulut, Huriye Ariman; Er, Akif (Walter de Gruyter, 2023)In this study, we investigated the dietary effects of dandelion root extract (DRE) on growth performance, body composition, serum biochemical parameters, intestinal and liver histology, and fish resistance against Lactococcus ... -
Effect of pozzolanic cement exposure in nile tilapia (Oreochromis niloticus)
Er, Akif; Minaz, Mert; Kayış, Şevki (İstanbul University Press, 2024)Cement used in structures such as bridges, dams, and retaining walls built on the aquatic ecosystem harms different organisms. The current study reveals the effect of pozzolanic cement (PC) on Nile Tilapia (Oreochromis ... -
Effects of ceramic balls on trout welfare during their live transfer conditions
Akdemir, Gülperi; Er, Akif; İpek, Zeynep Zehra; Minaz, Mert; Kayış, Şevki (Ege Üniversitesi, 2022)The effects of ceramic balls on live transfer conditions of rainbow trout (Oncorhynchus mykiss, (Walbaum,1792)) were determined by examining ammonia, pH, dissolved oxygen, and temperature of water and gill histology of ... -
Effects of concrete additives on vital tissues of rainbow trout (oncorhynchus mykıss): A histological examination
Er, Akif; Öztek, Özgür; Kayış, Şevki (Parlar Scientific Publications (P S P), 2019)The construction of reinforced concrete structures in aquatic systems and water basins has now become an inevitable need. Concrete structures, both simple and large, such as retaining walls, the design of landscape areas, ... -
Effects of feed rations containing egg powder in different proportions on growth performance, feed utilization, body composition and survival rate of rainbow trout (Oncorhynchus mykiss Walbaum, 1792) fry
Köse, Özay; Karabulut, Huriye Arıman; Kurtoğlu, İlker Zeki; Er, Akif (Ege Üniversitesi Su Ürünleri Fakültesi, 2021)This study aims to determine the appropriate egg powder ratio that can be substituted into the fish meal to close the protein deficit without adversely affecting the development performance of rainbow trout fry (Oncorhynchus ... -
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 ... -
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 ... -
Toxic effects of pozzolanic cement on egg, alevine, fry and juvenile rainbow trout (Oncorhynchus mykiss) individuals and some water quality parameters
Er, Akif; Minaz, Mert; Kayış, Şevki (Springer Nature, 2024)Current study aims to ascertain the harmful effects of pozzolanic cement (PC) on water quality and several indicators of aquatic life. Also, the effects of PC on different life stages of rainbow trout were investigated. ... -
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 ...