zebra mussels Articles

  • Effective Removal of Zebra Mussels with Amiad Screen Technology

    Introduction The zebra mussel, native to the Black and Caspian Seas, has spread in the past few decades to waterways throughout the world mostly via ballast water. Zebra mussels, when non-indigenous to the environment, pose a serious threat to intakes of facilities that rely on fresh and brackish surface water. The mussel colonies obstruct the flow of water through the pipelines eventually ...

  • Linking zebra mussel invasion and waterborne commerce in the USA

    The zebra mussel, a non-indigenous species in North American freshwater ecosystems, has received significant attention over the past two decades as a costly and damaging invader. In the USA, federal-, state-, and local-level policies designed to control and/or prevent the spread of this species remain flawed, in that they do not everywhere account for (or enforce regulations over) all potential ...


    By IWA Publishing

  • Evaluation of zebra mussels (Dreissena polymorpha) as biomonitors of mercury contamination in aquatic ecosystems

    Zebra mussels have invaded many lakes in the United States and could be a useful tool for monitoring responses of aquatic biota to changes in mercury loading. The goal of the present study was to evaluate zebra mussels for use as a biomonitor of mercury contamination by comparing zebra mussel mercury concentrations between a lake with only indirect atmospheric mercury contamination (Otisco ...


    By John Wiley & Sons, Ltd.

  • Zebra mussels (Dreissena polymorpha) as a biomonitor of trace elements along the southern shoreline of lake michigan

    The invasive zebra mussel (Dreissena polymorpha) has become an accepted biomonitor organism for trace elements, but it has yet to be studied along the Lake Michigan shoreline. Likewise, the relationships between tissue concentrations of elements, organism size and sediment concentrations of elements have not been fully explained. This study found that a variety of allometric variables such as ...


    By John Wiley & Sons, Ltd.

  • Filtration effects of zebra mussels on pathogens and total bacterial burden in the Odra Lagoon (South Baltic)

    As a result of their mode of filter feeding, zebra mussels (Dreissena polymorpha Pall.) have been observed to purify natural water bodies and in vitro. Therefore, the possibility of using zebra mussels for water purification was investigated in a slightly brackish water body of a large lagoon. In this study, water samples were taken above, near and at distance from zebra ...


    By IWA Publishing

  • Building a filter defense against Zebra and Quagga mussles

    Tiny mussels can create massive problems for intake structures, vaLves, pumps, screens and other water infrastructure around the US. Some filtration systems can provide chemical-free protection against invasive zebra and quagga mussels, but it is vital to understand the problem and develop the right system to avoid being overrun by the alien species. Zebra mussels (Dreissena polymorpha) and their ...

  • Chlorination for Dreissena polymorpha control: old war-horse for the new pest?

    The various chlorination regimes employed in industrial cooling water systems to control Dreissena polymorpha (Pallas) are illustrated. Literature data on lethal and sublethal effects of chlorination on D. polymorpha are presented and gaps in knowledge are identified. The data show that various factors can influence the chlorine tolerance of D. polymorpha, among which mussel species, mussel size, ...


  • State Fish Hatcheries and Invasive Species Don’t Mix

    INTRODUCTION The Vermont Fish and Wildlife Department is responsible for the protection and management of the state’s fish populations. Cultured fish are stocked in natural and manmade areas that are excellent for growth and survival but have little or no spawning habitat. Other stocking areas include natural water bodies where spawning and nursery habitats have been destroyed or isolated from ...

  • Case study - Water quality in the Mississippi Basin

    A resilient method for monitoring water quality and nitrate levels in the harsh aquatic environment of the Mississippi River, in section 16, was required by the University of Iowa -IIHR. The monitoring of continually accurate water quality data was important for analysis, in conjunction with the diurnal mussel study of the University of Iowa. Monitoring water over extended periods of time in ...


    By The OTT Hydromet Group

  • Industrial cooling water fouling by Dreissenidae

    Together with the cooling water, a wide range of living organisms is entrained into cooling water systems, which can readily colonise the available surfaces in the system. Growth conditions in the cooling water system often are ideal for sessile organisms: the steady water flow assures abundance of nutrients and oxygen, while access for predators is limited. The consequence of this is that ...


  • Electronic water treatment reduces fouling in heat exchangers

    The deposition of material on heat transfer surfaces is called fouling which significantly impacts on the thermal and mechanical performance of heat exchangers. Fouling increases the overall thermal resistance and lowers the overall heat transfer coefficient of heat exchangers as well as impeding fluid flow, accelerating corrosion and increasing pressure drop across the heat ...

  • ELECTRONIC WATER TREATMENT REDUCES FOULING AND CORROSION IN PIPELINES

    Increasing pressure loss in the pipeline is often caused by scale corrosion or product fouling of the internal surfaces. This condition slows transmission and distribution capacity, and can require more than just routine maintenance if it remains unaddressed. Interior corrosion, fouling and leakage in pipeline systems will adversely impact bottom-line operations. ...

  • Water quality is key to the success of Cardiff Bay

    Water quality has been a central theme in a redevelopment project that began with the creation of the Cardiff Bay Development Corporation in April 1987. This article will examine the role that water quality has played in the remarkable transformation that has taken place in Cardiff and explain how monitoring technology has developed to the stage whereby any person, anywhere in the world, can view ...

  • What’s Hiding in the Water?

    As we grow in understanding the significance different organisms have in the ecology of an environment, it helps tremendously if we knowwhich organismsinhabit that environment – whether they’re supposed to be there or not.  One method that is gaining widespread use, and relies on a simple filtration method, is the analysis of environmental DNA (eDNA) from local waterways. ...


    By Sterlitech Corporation

  • Cornell Lake Source cooling cleaning - Case Study

    The project involved anchoring a sectional barge in 250′ of water on an inland lake, and recovering an intake screen weighing over 4 tons to the surface for cleaning and inspection. With the screen off, cleaning pigs (3) were sent through nearly 2 miles of 62″ diameter pipe to clean accumulated quagga and zebra mussels. ...

  • Top 5 ways marine researchers are currently using Underwater Drones

    Marine researchers around the world are utilizing Deep Trekker Underwater Drones (or ROVs) in their marine projects; here are the top 5 applications being used today. In a few weeks, the world will gather in San Diego, California for the Oceanology International North America exhibition. It will bring together ...


    By Deep Trekker Inc.

  • BioLargo’s “Lowest Cost - Highest Impact” Clean Water Technology Positioned To Save Maritime Operators Billions

    Beginning this year and continuing over the next 5 years, the International MaritimeOrganization and the U.S. Coast Guard are requiring an estimated 65,000 ships over 400 gross tons to be fitted with approved Ballast Water Treatment Systems, “BWTS”. ...


    By Biolargo, Inc.

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