Effects of the exotic zebra mussel (Dreissena polymorpha) on metal cycling in Lake Erie

The effects of the zebra mussel (Dreissena polymorpha) on the cycling of copper, nickel and zinc in Erie lake were studied by quantifying metal removal from the water column, metal bioaccumulation and metal biodeposition. The mussels were either kept in flow-through systems (bioboxes) receiving lake...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 1997-07, Vol.54 (7), p.1630-1638
Main Authors: KLERKS, P. L, FRALEIGH, P. C, LAWNICZAK, J. E
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Dreissena polymorpha
Ecotoxicology, biological effects of pollution
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
Metals
Mollusks
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Summary:The effects of the zebra mussel (Dreissena polymorpha) on the cycling of copper, nickel and zinc in Erie lake were studied by quantifying metal removal from the water column, metal bioaccumulation and metal biodeposition. The mussels were either kept in flow-through systems (bioboxes) receiving lake water or were placed in the lake using a sedimentation trap design. Rates of removal of copper, nickel and zinc from the water column were estimated as 0.6, 0.7 and 2.8 mg per m2.d, respectively, representing 10, 17 and 10 per cent of the total metal concentrations in the water column. Concentrations of copper, nickel and zinc in soft tissues of zebra mussels from western Erie lake averaged 17, 15 and 119 ug per g dry weight, respectively. The zebra mussels deposited metals on the lake bottom. There are 31 references.
ISSN:0706-652X
1205-7533
DOI:10.1139/cjfas-54-7-1630