Acute Toxicity of Cadmium on Ophelia bicornis Savigny, 1822

Yıl 2019, , 289 - 297, 15.09.2019

Levent Bat , Fatih Şahin , Ayşah Öztekin

https://doi.org/10.22392/actaquatr.509974

Cited By: 1

Öz

Static bioassays to assess
acute toxicity of cadmium to Ophelia bicornis were
conducted. Organisms were exposed to the different concentrations for 24, 48,
72 and 96-hr. The LC₅₀ values for 24, 48, 72 and 96-h with 95%
confidence limits were estimated statistically by the probit methods and were
26 (22.8-29.4), 18 (15-22), 12 (9.1-14.4) and 7.2 (6.8-7.5) mg/l for Group 1 (15
and 25 mm in length) and 28 (24.6-33.8), 24 (22.4-25.5), 18 (16.1-19) and 8.7
(7.8-9.6) mg/l for Group 2 (26 and 36 mm in length), respectively. Toxicity of
Cd was dependent on both concentration and exposure time. LC₅₀
increased with increasing the length of organisms. Mortality of O. bicornis was increased corresponding
to the high toxic concentrations and duration of exposure. Results showed that O. bicornis was sensitive to cadmium.

Anahtar Kelimeler

Lethal concentration, toxicity, cadmium, Ophelia bicornis, Black Sea

Acute Toxicity of Cadmium on Ophelia bicornis Savigny, 1822

Öz

Ophelia bicornis
türünde kadmiyumun akut toksisitesini
değerlendirmek için statik biyolojik deneyler yapılmıştır. Organizmalar 24, 48,
72 ve 96 saat süreyle farklı konsantrasyonlara maruz
bırakılmıştır. % 95 güven aralığına sahip LC₅₀
değerleri 24, 48, 72 ve 96 saatleri için probit yöntemlerle istatistiksel
olarak tahmin edilmiş olup, sırasıyla Grup 1 (15 ve 25 mm boy) için 26 (22,8-29,4),
18 (15-22), 12 (9,1-14,4) ve 7,2 ( 6,8-7,5) ve Grup 2 (26 ve 36 mm boy) için 28
(24,6-33,8), 24 (22,4-25,5), 18 (16,1-19) ve 8,7 (7,8-9,6) mg/l olarak
hesaplanmıştır. Kadmiyum toksisitesi
hem konsantrasyon hem de maruz kalma
süresine bağlı olarak değişmiştir. LC₅₀ değerleri organizmaların
uzunluğu arttıkça arttı. O. bicornis ölüm
yüzdesi, yüksek toksik
konsantrasyonlara ve maruz kalma süresine bağlı olarak artmıştır. Sonuçlar O.
bicornis
türünün kadmiyuma
duyarlı olduğunu göstermiştir. 

Anahtar Kelimeler

Ophelia bicornis, Öldürücü konsantrasyon, toksisite, kadmiyum, Karadeniz

Kaynakça

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