İskenderun Körfezi'nde dağılım gösteren iki markroalg türünde (Cystoseirea corniculata (Phaeophyta), Laurencia papillosa (Rhodophyta) ağır metallerin mevsimsel değişimi

Doğu Akdeniz’in Kuzeydoğu köşesinde yer alan İskenderun Körfezi, balıkçılık, deniz trafiği ve kıyısal kesimlerde birçok sanayii kuruluşunun bulunması nedeniyle potansiyel kirlilik tehditi altında bulunan bir alandır. Bu kirlilik unsurlarının tespit edilebilmesi amacıyla İskenderun Körfezi kıyılarında belirlenen üç farklı istasyondan, makroalg örnekleri toplanarak, Demir (Fe), Bakır (Cu), Kurşun (Pb) ve Kadmiyum (Cd) konsantrasyonları spektrofotometrik yöntemlerle belirlenmiştir. Cystoseira corniculata (Phaeophyta) ve Laurencia papillosa (Rhodophyta)’da ağır metal konsantrasyonlarının sıralaması Fe > Pb > Cu > Cd olarak belirlenmiştir. Aynı istasyonlardan toplanan C. corniculata ve L. papillosa’da belirlenen ağır metal konsantrasyonları karşılaştırıldığında L. papillosa’nın C. corniculata’ya göre daha fazla Fe, Cu ve Pb biriktirdiği ettiği belirlenmiştir. L. papillosa, C. corniculata ile birlikte ağır metal kirliliğinin izlenme çalışmalarında indikatör tür olarak kullanılabileceği önerilebilir.

Anahtar Kelimeler:

mevsimsel değişimler, Türkiye, ağır metaller, indikatörler

Seasonal changes of heavy metals in two macroalgae species (Cystoseira corniculata (phaeophyta), Laurencia papillosa (Rhodophyta) in the İskenderun Bay.

Seasonal changes of heavy metals in two macroalgae species [Cystoseira corniculata (Phaeophyta), Laurencia papillosa (Rhodophyta)] in the Iskenderun Bay. Iskenderun Bay, located in the most north-eastern part of eastern Mediterranean Sea, is potentially threatened by anthropogenic activities such as fishing, shipping and industrial efforts. The aim of the present study was to monitor the heavy metal pollution in macroalgae at three different stations in Iskenderun Bay. For this purpose, two macroalgae species, (Cystoseira corniculata (Phaeophyta) and Laurencia papillosa (Rhodophyta)) were collected, and the levels of iron (Fe), copper (Cu), lead (Pb), and cadmium (Cd) were measured spectrophotometrically. Heavy metal concentrations decreased in the following order: Fe > Pb > Cu > Cd in both species. The results of this study showed that the accumulation of Fe, Cu, Pb was higher in L. papillosa than C. corniculata which collected at the same stations. In conclusion, L. papillosa together with C. corniculata could be used as a bioindicator species to monitor the heavy metal pollution.

Keywords:

seasonal variation, Turkey, heavy metals, indicators,

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