Evaluation of water quality variables and their effects on fish life in Asarsuyu Stream (Düzce/Turkey)

Asarsuyu Stream is one of the tributaries of Melen River located in the Western Black Sea Region in Turkey. It is influenced by intensive industrial activities, agricultural and urban areas. Ichthyofauna of the stream consists of Squalius pursakensis, Barbus escherichii, Alburnoides tzanevi, Rhodeus amarus, Alburnus derjugini, Gobio baliki, Cobitis splendens, Oxynoemacheilus banarescui, Gambusia holbrooki. In order to assess the impacts of the water quality on fish health, the water quality of Asarsuyu Stream was determined by some physiochemical (temperature, conductivity, salinity, total dissolved solids, pH, dissolved oxygen) and chemical (nitrite, nitrate, ammonium, phospahate, sulphate, calcium, magnesium, chloride, sodium and potassium) parameters were monitored seasonally during February and November 2018. All of the data obtained experimentally were compared according to the criteria of SKKY (Water Pollution Control Regulation in Turkey) and evaluated according to the criteria European Commission. The obtained data indicated that oxygen may be a critical factor for fish survival especially during spring and autumn in the study area. According to our results, the monitoring stations have class I-IV water quality in terms of nitrigenous compounds. Especially nitrite and ammonia, have been determined to reach critical levels for fish health.

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  • Akman, Y., Ketenoğlu, O., Evren, H., Kurt, L. (2002) Düzenli, S., Çevre Kirliliği (Çevre Biyolojisi), Palme Yayıncılık, Ankara.Alabaster, J.S., Lloyd, R. 1980, Water Quality Criteria for reshwater Fish. Butterworths, London-Boston, 297 p.Anonymus (2014) Ulusal Biyolojik Çeşitlilik Envanter ve İzleme Projesi, Düzce İli’nin Karasal Biyolojik Çeşitlilik ve İç Su Ekosistemleri Biyolojik Çeşitlilik Envanter ve İzleme İşi Sonuç Raporu, Orman ve Su İşleri Bakanlığı Doğa Koruma Ve Milli Parklar Genel Müdürlüğü, Düzce Şube Müdürlüğü, Dokay Çed-Çevre Mühendisliği Ltd. Şti., Ankara, 375 S.Anonymus (1981). Su ve Analiz Metodları. DSİ Basım ve Foto Film İşletme Müdürlüğü Matbaası, 158 s.Arrignon, J. (1976). Aménagement Ecologique et Piscicole des Eaux Douces, Bordas, Paris, 322p.Boyd, C.E., Lichtkoppler, F. (1993). Water Quality Management for Pond Fish Culture (Balık Yetiştiriciliğinde Su Kalitesi Yönetimi) (Translated by İ. Akyurt), Atatürk Üniversitesi Ziraat Fakültesi Ders Yayınları No:144, 67 s.Bremond, R., Vuichard, R. (1973). Parameters de la qualite des eaux: Ministere de la Protection de la Nature et de Environnement, Documentation, Française, Paris, 179 p.Chapman, D. (1992). Water Qaulity Assessments, A Guide to the Use of Biota, Sedimets and Water in Environmental Monitoring. Chapman & Hall Ltd., London, UK, 585 p.Dauba, F. (1981). Etude comperative de la fauna des poissons dans les ecosystemes de deux reservoirs: Luzech (Lut) et Chastang (Dordogone): These de troisieme cycle L’Institut National Polytechnique de Toulouse, 179 p.EC (European Communities) (2006) EC of the European Parliament and of the council of 6 September 2006 on the quality of fresh waters needing protection or improvement in order to support fish life. Directive 2006/44.Jobling, M. (1995). Environmental biology of fishes. Chapman & Hall, London, pp. 403–408.Manahan S. E. (2011). Water Chemistry: Green Science and Technology of Nature's Most Renewable Resource. Taylor & Francis Group, CRC Press, pp. 398.Nikolsky, G.V. (1963). The ecology of fishes (Translated by L. Birkett). Academic Press, London, 352 p.Nisbet, M., Verneaux, J. (1970). Composantes chimiques des eaux courantes, discussion et proposition de classes en tant que bases d’interprepretation des analyses chimiques. Annales de Limnologie, 6, 2, 161-170.Rose, K.A. (2000). Why are quantitative relationships between environmental quality and fish populations so elusive?. Ecological Applications, 10(2, 367-385.SKKY (Su Kirliliği Kontrol Yönetmeliği), 2004. Su Kirliliği Kontrolü Yönetmeliği (Water Pollution Control Regulation in Turkey). Yayımlandığı Resmi Gazete :Tarih 31 Aralık Cuma 2004 Sayı :25687.Svobodá, Z., Lloyd,R., Machova, J., Vykusova, B. (1993). Water Quality and Fish Health, EIFAC Technical Paper. No: 54, Rome, FAO, 59 p.Wetzel, R.G. (2001). Limnology, Lake and River Ecosystems (3rd Edition). Academic Press, London, UK, 1006 p.