Abdallah Maha A M, Abdallah Aly M A
National Institute of Oceanography and Fisheries, Marine Pollution Lab, Alexandria, Egypt.
Environ Monit Assess. 2008 Nov;146(1-3):139-45. doi: 10.1007/s10661-007-0066-8. Epub 2007 Dec 12.
Concentrations of Cd, Cu, Co, Zn, Mn and Fe were determined in biota and sediment samples collected from the Eastern Harbour and El-Mex Bay in the Mediterranean Sea, Egypt. The levels of Cu, Co, Zn, Mn and Fe in the macroalgae, Ulva lactuca, Enteromorpha compressa (green algae) and Jania rubens (red algae), recorded high concentrations except for Cd. Moreover, Fe was the most predominant metal in the seaweed. The two species of bivalves, Donax trunculus and Paphia textile, showed different amounts of metals in their tissue. The abundance of heavy metal concentrations in the mussel samples was found in the order Fe> Zn> Mn> Cu> Co> Cd and Fe> Zn> Mn> Cu> Cd> Co, respectively for the two species. The metals concentrations were generally higher compared with the previous studies in mussels from the same area. The levels of metals accumulated in the investigated fish samples, Saurida undosquamis, Siganus rivulatus, Lithognathus mormyrus and Sphyraena sphyraena, were higher than those of Marmara Sea (Turkey), for Co and Cd and lower for Cu, Zn, Mn and Fe. El-Mex Bay having the highest metals concentration in sediments as their order of abundance were Fe> Zn> Mn> Cu> Cd> Co. Nevertheless, a high variability in the metal levels occurs among the studied algae and biota and also between the investigated Harbour. A significant correlations (p < 0.05) were found for each of Zn and Fe in P. textile and of Co in D. trunculus relative to their concentrations in surficial sediments.
对从埃及地中海的东港和埃尔-梅克斯湾采集的生物群和沉积物样本中的镉、铜、钴、锌、锰和铁浓度进行了测定。大型海藻石莼、浒苔（绿藻）和红藻仙掌藻中的铜、钴、锌、锰和铁含量记录显示，除镉外浓度都很高。此外，铁是海藻中最主要的金属。两种双壳贝类，截形贝和织锦巴非蛤，其组织中的金属含量不同。贻贝样本中重金属浓度的丰度顺序分别为铁>锌>锰>铜>钴>镉和铁>锌>锰>铜>镉>钴。与之前对同一地区贻贝的研究相比，金属浓度普遍较高。在调查的鱼类样本，即长蛇鲻、条纹篮子鱼、颌针鱼和尖吻鲭鲨中，积累的钴和镉的金属含量高于马尔马拉海（土耳其），而铜、锌、锰和铁的含量则低于马尔马拉海。埃尔-梅克斯湾沉积物中的金属浓度最高，其丰度顺序为铁>锌>锰>铜>镉>钴。然而，在所研究的藻类和生物群之间以及所调查的港口之间，金属含量存在很大差异。相对于表层沉积物中的浓度，在织锦巴非蛤中发现锌和铁以及在截形贝中发现钴存在显著相关性（p < 0.05）。
