Relationships with Some Physicochemical Parameters and Zooplankton Abundance with Depth in Lake Iznik, Bursa, Turkey
Makaleler > Tam Makale · 2014
Yazarlar: Meral Apaydin Yagci, Mustafa Rusen Ustaoglu
Ekoloji, Uluslararası, Wos, 2014, ss 36-42
Özet
Ozet Bu calismada Iznik Golunun en derin bolgesi Golluce mevkiinde, zooplanktonun derinlige bagli yogunlugu ve cesitliligi Ocak 2006 ile Aralik 2006 tarihleri arasinda aylik olarak arastirilmistir. Ayrica, zooplankton turlerinin bazi fiziksel-kimyasal parametreler ile iliskileri CCA (Konoik Uyum Analizi) ile analiz edilmistir. CCA analizine gore, tuzluluk ve konduktivite ile Bosmina longirostris pozitif iliskili, Daphnia cucullata, Copepodit ve Nauplii negatif iliskili olarak bulunmustur. Keretella quadrata, Brachionus calyciflorus, Bosmina longirostris, Diaphanosoma lacustris ve Cyclops vicinus dominant turler olarak belirlenmistir. Shannon (Cesitlilik) indeksi 0.33 ile 0.98 arasinda hesaplanmistir. Zooplanktonun mevsimsel birey yogunlugu minimum 45.120 birey/m3 (Sonbahar) ve maksimum 144.613 birey/m3 (Ilkbahar) olarak tespit edilmistir. Bir yillik calisma periyodunda Rotifera grubunun 30-50 m, Cladocera grubunun 10-50 m, Copepoda grubu- nun ise 10-20 m derinlikte yogun dagilim gosterdigi belirlenmistir. Anahtar Kelimeler: CCA, Fizikokimyasal parametreler, Golluce, Iznik Golu, Zooplankton. Abstract In this study, zooplankton density and diversity with depth was investigated monthly, between January 2006 and December 2006 in the deepest area (Golluce) of Lake Iznik. In addition, the relations of zooplankton species with some physicochemical parameters were analyzed with a CCA (Canonical Correspondance Analysis). According to the CCA, Bosmina longirostris is positive relationship and Daphnia cucullata, Copepoda and Nauplii are negative relationship with conductivity and salinity. Keretella quadrata, Brachionus calyciflorus, Bosmina longirostris, Diaphanosoma lacustris and Cyclops vicinus were dominant species. Shannon's diversity index ranged from 0.33-0.98. The average total zooplankton abundance ranged from 45.120 ind./m3 (Autumn) to 144.613 ind./m 3 (Spring). One-year study period, it was determined that Rotifera, Cladocera and