BWT: the Cost of Great Lakes Invasive Species Damage

Press Release
Friday, March 30, 2012

Research project shows invasive species cost the Great Lakes millions of dollars.

 

Although there has been growing recognition among researchers and policymakers that shipborne invasive species cause a considerable economic toll, this environmental problem often goes unaddressed because of the difficulty in quantifying annual impacts on ecosystem services.

However, a new paper by researchers from the University of Notre Dame, the University of Wyoming and the Technical University of Delft in the Netherlands assigns a dollar figure on the cost to the Great Lakes from invasive species that originate in the ballast water of ocean-going vessels.

David M. Lodge and John D. Rothlisberger of Notre Dame, David C. Finnoff of Wyoming, and Roger M. Cooke of Delft determined that the median estimate of damages is $138 million annually but could be more than $800 million annually.

The researchers used structured expert judgment and economic analysis to determine the figure. They note that the economic analyses employed in their estimate of damages are far more accurate than previous attempts at calculating the damages caused by invasions, yet are probably underestimates for the U.S. side of the Great Lakes basin. Canadian costs were not included.

Using the group’s median value of $138 million, replacing shipping with other modes of transportation might bring net benefits to society in about 30 to 50 years. Using the higher values of damages in the same calculations would suggest that net benefits would occur much sooner.

By converting the impacts into dollar values, the researchers have provided benchmarks that could be used to evaluate the benefits of policy and management choices to reduce the probability of future invasions (for example, stringent requirements for ballast water treatment and inspection on ships).

The researchers’ approach to assessing ecosystem-scale effects of invasive species also provides a template for evaluating policy and management alternatives to prevent, or mitigate, many kinds of environmental damage.

 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

Activists Block Shell's Arctic Drilling Quest

Greenpeace protestors dangling from a bridge on Thursday in Portland, Oregon, halted an icebreaker that Royal Dutch Shell needs in northern Alaska before it can

Google Maps Goes Coastal with Unmanned Boat

A new high-tech unmanned vessel, launched with the help of Google, will use innovative technologies from the boatbuilding and mapping fields to map shorelines and

MARAD to Host Meeting on Proposed Delfin LNG License

MARAD Announces Public Scoping Meetings for Proposed Delfin Liquefied Natural Gas Deepwater Port Export Facility.   On July 29, the Maritime Administration

Marine Science

NAO Expedition to Study Walruses

From Naryan-Mar complex expedition started "Investigation Atlantic walrus habitat" for the study of animal southeastern Barents Sea. The expedition of seven

Korean Registry Okays Transas ECDIS

Transas, one of the world's leading providers of integrated navigation solutions, received ECDIS type-approval from the Korean Registry (Korea Marine Equipment Research Institute),

New Research Vessel for University of New Hampshire

All American Marine, Inc. (AAM) has entered into a contract with the University of New Hampshire (UNH) for the design and construction of a new aluminum catamaran research vessel.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Offshore Oil Port Authority Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1081 sec (9 req/sec)