caa a22 4500 467902119 CHVBK 20180406152821.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1007/s10661-005-9063-y doi (NATIONALLICENCE)springer-10.1007/s10661-005-9063-y Environmental Impact of the Marine Aquaculture in GÜLLÜk Bay, Turkey [Elektronische Daten] [Ahmet Demirak, Ahmet Balci, Mehmet TÜfekÇi] The effects of marine aquaculture on the environment were evaluated by studying the water quality of Güllük Bay (Turkey). Marine aquaculture, both extensive and intensive, is one of the most important activities carried out in this area. The intensive culture of fish (Dicentrarchus labrax) is the most important polluting element in Güllük Bay. Records of long term (seasonally) monitoring of the ambient water dissolved oxygen concentration, the inorganic nutrients (ammonia, nitrate, nitrite, and phosphate) and chlorophyll a concentrations were generated to assess sea water quality of Güllük Bay. Surface water (0.5 m) samples were collected from seven fish farm areas in the cage of Güllük Bay (here after reported as the cage stations). Reference surface water was also concurrently sampled at three stations. Modifications in the cage stations water quality were assessed as the difference between the magnitude of a specific parameter recorded at cage station and the concurrently recorded value of the parameter at the reference station, relative to the mean value at the reference station. In this study, results in the specific modifications are discussed at the study period. An aquaculture area had consistently positive modifications in phosphate concentration, but not in nitrogen or chlorophyll a concentrations. Chlorophyll a concentrations showed non positive modifications only in June. In addition to these site specific modifications nitrogen concentrations were positively modified in August and October. Springer Science + Business Media, Inc., 2005 pollution nationallicence seawater nationallicence marine aquaculture nationallicence environmental impact nationallicence Demirak Ahmet Department of Chemistry, Mugla University, 48000, Mugla, Turkey aut Balci Ahmet Department of Chemistry, Mugla University, 48000, Mugla, Turkey aut TÜfekÇi Mehmet Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey aut Environmental Monitoring and Assessment Kluwer Academic Publishers 123/1-3(2006-12-01), 1-12 0167-6369 123:1-3<1 2006 123 10661 https://doi.org/10.1007/s10661-005-9063-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-005-9063-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Demirak Ahmet Department of Chemistry, Mugla University, 48000, Mugla, Turkey aut NATIONALLICENCE 700 1- Balci Ahmet Department of Chemistry, Mugla University, 48000, Mugla, Turkey aut NATIONALLICENCE 700 1- TÜfekÇi Mehmet Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 123/1-3(2006-12-01), 1-12 0167-6369 123:1-3<1 2006 123 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer