What can we do?
"The next step is to find out which stowaways will have the greatest chance to survive the journey in ballast tanks or on the ship hulls, and which are most likely to establish breeding populations after arriving in the Arctic. These questions are the focus of our current research.
Each species has its own physiological characteristics and relationship to the environment, so if we can foresee that some particularly problematic species are at risk of becoming established as the climate warms, we are in a better position to concentrate specific effort and resources to keep them out."
How to curb harmful species?
The UN's International Maritime Organization (IMO) is on the verge of entering the Ballast Water Management Convention into force, but this will not happen until 12 months after countries with a combined total of at least 35 % of the World's commercial fleet (measured in gross tonnage) have ratified the Convention. Denmark and Norway have both done so, although the Convention does not presently apply to Greenland. It is up to Greenland's government to decide whether or when they want to join.
In Denmark the Danish Nature Agency states that Denmark is working on ensuring that the Convention enters into force as soon as possible, and that the Convention can be expected to come into effect in 2015. Among other things, they have established a partnership on ballast water with the Danish Maritime Administration and the Danish Shipowners Association and, as one of its activities, the partnership organised an international conference in Copenhagen on 1 November.
In addition to ballast water, biofouling on the hulls is also a source of introduced species. All shipowners are interested in alleviating fouling because a coating of algae etc. on the hull increases the consumption of fuel. However, there is
|Contact: Chris Ware|