Sürdürülebilir Kalkınma Amaçları

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• MakaleYalnız künye2024/r/munzur/6247
  Şerefiye (Zara-Sivas) Barajının Su Kalitesi İndekslerine Göre Değerlendirilmesi

  Mutlu, Ekrem; Kutlu, Banu

  Sivas ili Şerefiye Baraj gölünün su kalitesinin belirlenmesi üzerine yapılmış olan bu çalışma; Ocak 2014 ile Aralık 2014 tarihleri arasında 3 istasyondan aylık olarak toplanan numuneler üzerinde gerçekleştirilmiştir. 25 değişkenin incelendiği analizlerde su kalitesi, Dünya Sağlık Örgütü içme suyu standartları, su kalite indeksi (WQI), sodyum absorbsiyon oranı (SAR), sodyum yüzdesi, geçirgenlik indeksi (PI), magnezyum indeksi, sulama indeksi ve Türkiye Cumhuriyeti Yüzey Suyu Kalitesi Yönetmeliği (SWQR) Orman ve Su İşleri Daire Başkanlığı değerlerine göre belirlenmiştir. Barajdaki su kalite indeksinin ortalama değeri 46,82, sulama suyu değerleri ortalama 3,90 olarak bulunmuştur. Burada elde edilen sonuçlar Şerefiye Barajı'nın su kalite indeksi ve sulama suyu kalitesi açısından "çok iyi" sınıfta olduğunu göstermiştir.

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• Derleme MakaleAçık Erişim2023/r/munzur/6343
  Effects of Cadmium and Nickel on Embryonic Development of Fish: A Review

  Danabaş, Durali; Naz, Saima; Chatha, Ahmad Manan Mustafa

  In fish embryos, a variety of abnormalities have been found, including stunted growth, a reduced survival rate, and aberrant development. One plausible explanation is that early embryonic stages are more sensitive. Embryonic studies provide additional information regarding the various impacts of heavy metals on fish, but information on larval abnormalities caused by waterborne metals is lacking. It is found that cadmium (Cd) causes a decrease in thyroid hormone levels as well as a disruption in fish growth hormone expression. Similarly, negative health effects have been documented as a result of nickel (Ni) exposure. Some toxic effects on organs, skin irritation, skin itches or blisters and allergic reactions may occur as a result of Ni exposure. This review study focuses on the impacts of Cd and Ni, on the embryonic development of different fish species. The evidence on abnormalities in fish larvae caused by Cd and Ni was also provided in text.

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• MakaleAçık Erişim2023/r/munzur/5678
  Anaesthetic Effects of Rosewood (Aniba rosaeodora) Essential Oil and 2-phenoxyethanol on Goldfish (Carassius auratus) at Different Water Temperatures

  Şahin, Barış; Kizak, Volkan

  In this study, it was aimed to investigate the anesthetic effects of rosewood essential oil and 2- phenoxyethanol in goldfish at different water temperatures. Anesthetic trials were carried out at water temperatures of 14°C and 20°C. Concentrations of 250, 300 and 350 μl·L-1 for rosewood essential oil and 600, 700 and 800 μl·L-1 for 2-phenoxyethanol were tested. The ideal rosewood essential oil concentration was determined as 300 μl·L-1 at 14°C and 250 μl·L-1 at 20°C. The ideal concentration for 2-phenoxyethanol was determined to be 800 μl·L-1 at both water temperatures. Higher concentrations of rosewood essential oil and 2-phenoxyethanol caused shorter induction times and prolonged recovery times. Concentrations of anesthetic agents were negatively correlated with induction times and positively correlated with recovery times. A weak negative relationship was found between deep anesthesia and full recovery durations at 14ºC and a negative relationship at 20ºC for rosewood essential oil. A negative relationship was detected between deep anesthesia and full recovery times in 2-phenoxyethanol at 14ºC and 20ºC. There is a strong negative relationship between rosewood essential oil deep anesthesia times and rosewood essential oil concentrations at 14ºC and 20ºC, and a similar relationship was found for 2-phenoxyethanol. However, a strong positive relationship was detected between full recovery times and concentrations of both anesthetic agents at different water temperatures. As a result of increasing water temperature, anesthesia and recovery times were observed to be shortened for both anesthetic substances. The interaction of water temperature and anesthetic concentration was found to be important in the induction and recovery durations for rosewood essential oil and 2-phenoxyethanol.

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• Derleme MakaleYalnız künye2021/r/munzur/6585
  Potential Role of Zeolite on Improvement of Aquaculture Sector

  Danabaş, Durali; Dörücü, Mustafa

  Aquaculture, which is very important in many regions of the world, attracts attention as the fastest\rgrowing sector in the livestock sector in our country. The share of our country's aquaculture\rproduction in the production of total aquatic products is increasing day by day. Studies have been\rcarried out to solve feed problems and importance has been attached to additives that reduce cost\rand feed conversion ratio (FCR) to contribute to feed quality. Zeolites came to the forefront as feed\radditives. Due to the gap between 20 and 50 % in the structure, the molecules can be taken into the\rstructures and they are named as molecular sieves. Zeolites are used for purposes such as controlling\rthe pollution in pools in the aquaculture sector, increasing the growth parameters of the fish by\rincubation, fish transport and removal of nitrogen compounds from aquarium water, increasing\rambient oxygen in aquarium and fish transport, and as feed additive. In Turkey, billions of tons of\rzeolite have been detected and clinoptilolite type zeolite is found mostly in the beds of AnkaraPolatlı-Mülk-Oğlakçı Region and Bigadiç, Şaphane, Gediz, Emet and Gördes Districts. We believe\rthat the use of zeolites produced in Turkey as a local and natural product as feed additive substance\rin the aquaculture industry in the aquaculture sector will contribute to the production of lower cost\rfish as well as contribute to the development of 2 different sectors (aquaculture and mining) in\rinteraction with each other.

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