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Cetacean species found stranded along Croatian coast of the Adriatic Sea as bioindicators of non-essential trace elements in the environment
Aquatic Toxicology ( IF 4.1 ) Pub Date : 2024-12-17 , DOI: 10.1016/j.aquatox.2024.107206 Marija Sedak, Maja Đokić, Nina Bilandžić, Tomislav Gomerčić, Miroslav Benić, Manuela Zadravec, Martina Đuras
Aquatic Toxicology ( IF 4.1 ) Pub Date : 2024-12-17 , DOI: 10.1016/j.aquatox.2024.107206 Marija Sedak, Maja Đokić, Nina Bilandžić, Tomislav Gomerčić, Miroslav Benić, Manuela Zadravec, Martina Đuras
In tissues of toothed whales from the Adriatic Sea (muscle, liver, kidney, lung, spleen, adipose tissue and skin) the concentrations of cadmium (Cd), lead (Pb) and arsenic (As) were analysed. In total, 186 dolphins were analysed; 155 bottlenose (Tursiops truncatus ), 25 striped (Stenella coeruleoalba ) and 6 Risso's dolphins (Grampus griseus) . Cadmium concentrations in tissue samples ranged from 0.001 mg/kg in muscle to 16.8 mg/kg wet weight in kidney. Arsenic concentrations in dolphin samples ranged from 0.010 to 12.9 mg/kg ww. The lowest As concentration was found in spleen and highest in liver of bottlenose dolphin. Cadmium and As levels in Risso's dolphins showed higher concentrations in all tissues in comparison to bottlenose and striped dolphins. >50 % of the measured Pb values for all three species of dolphins and examined tissues were lower than 0.1 mg/kg. The accumulation of Cd and As during the lifetime was confirmed. None of the dolphins analysed in this study were exposed to concentrations of Cd in the liver higher than 20 mg/kg wet weight, which can cause renal failure in marine mammals. Numerous species of marine mammals inhabit coastal environments alongside humans and utilize similar food sources, such as fish and cephalopods. Consequently, these mammals can function as valuable indicators of public health concerns.
中文翻译:
在亚得里亚海克罗地亚海岸发现搁浅的鲸类物种,作为环境中非必需微量元素的生物指示物
分析了亚得里亚海齿鲸的组织(肌肉、肝脏、肾脏、肺、脾脏、脂肪组织和皮肤)中镉 (Cd)、铅 (Pb) 和砷 (As) 的浓度。总共分析了 186 只海豚;155 只宽吻海豚 (Tursiops truncatus),25 只条纹海豚 (Stenella coeruleoalba) 和 6 只里索海豚 (Grampus griseus)。组织样本中的镉浓度范围从肌肉中的 0.001 mg/kg 到肾脏中的 16.8 mg/kg 湿重不等。海豚样本中的砷浓度范围为 0.010 至 12.9 mg/kg ww。樽鼻海豚脾脏中 As 浓度最低,肝脏中 As 浓度最高。与宽吻海豚和条纹海豚相比,Risso 海豚的镉和 As 水平在所有组织中的浓度更高。>50% 的测量 Pb 值对所有三种海豚和检查的组织都低于 0.1 mg/kg。证实了 Cd 和 As 在一生中的积累。本研究中分析的海豚都没有暴露于肝脏中高于 20 mg/kg 湿重的 Cd 浓度,这可能导致海洋哺乳动物肾功能衰竭。许多种类的海洋哺乳动物与人类一起栖息在沿海环境中,并利用类似的食物来源,例如鱼类和头足类动物。因此,这些哺乳动物可以作为公共卫生问题的重要指标。
更新日期:2024-12-17
中文翻译:
在亚得里亚海克罗地亚海岸发现搁浅的鲸类物种,作为环境中非必需微量元素的生物指示物
分析了亚得里亚海齿鲸的组织(肌肉、肝脏、肾脏、肺、脾脏、脂肪组织和皮肤)中镉 (Cd)、铅 (Pb) 和砷 (As) 的浓度。总共分析了 186 只海豚;155 只宽吻海豚 (Tursiops truncatus),25 只条纹海豚 (Stenella coeruleoalba) 和 6 只里索海豚 (Grampus griseus)。组织样本中的镉浓度范围从肌肉中的 0.001 mg/kg 到肾脏中的 16.8 mg/kg 湿重不等。海豚样本中的砷浓度范围为 0.010 至 12.9 mg/kg ww。樽鼻海豚脾脏中 As 浓度最低,肝脏中 As 浓度最高。与宽吻海豚和条纹海豚相比,Risso 海豚的镉和 As 水平在所有组织中的浓度更高。>50% 的测量 Pb 值对所有三种海豚和检查的组织都低于 0.1 mg/kg。证实了 Cd 和 As 在一生中的积累。本研究中分析的海豚都没有暴露于肝脏中高于 20 mg/kg 湿重的 Cd 浓度,这可能导致海洋哺乳动物肾功能衰竭。许多种类的海洋哺乳动物与人类一起栖息在沿海环境中,并利用类似的食物来源,例如鱼类和头足类动物。因此,这些哺乳动物可以作为公共卫生问题的重要指标。