Balancing competitiveness and climate objectives: Bellona Europa’s insights on the Draghi Report
Introduction Competitiveness has been the dominating topic in EU political discussions in recent months and is set to be a key focus of the upcomi...
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Publish date: January 7, 2009
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The Institute of Marine Research has created a numerical model for calculating the spread of salmon lice. Salmon lice spread during the first three stages of the louse’s life cycle, before the copepodite becomes parasitic and has to attach itself to a host to survive. The salmon louse’s potential for spreading is therefore a function of current, wind and the time it takes for the louse to pass from the free-swimming planktonic phase to the immobile parasitic phase.The time it takes before the parasitic phase begins is highly dependent on water temperature. In general, colder temperatures will lead to slower development (Jonson et al., 1991a) and a greater potential for spreading over longer distances.
At 8°C it will take approximately 4.5 days from hatching until the salmon louse is infectious, after which they can be infectious for up to 23 days. For 12°C, the corresponding figures are approx. 2.5 and 13 days (Boxaspen, K. et al., 2000). That is, at 8°C the salmon louse can spread for almost a month, whereas at 12°C the potential spreading period is cut in half. Given the typical current speeds in Western Norwegian fjord areas, this means that the salmon louse can be carried several hundred kilometres from where it hatched and still be capable of infesting salmon (Asplin, L. et al., 2002).
Introduction Competitiveness has been the dominating topic in EU political discussions in recent months and is set to be a key focus of the upcomi...
Russia is a world leader in the construction of nuclear power plants abroad. Despite the sanctions pressure on Russia since its full-scale invasion of Ukraine in 2022, its nuclear industry has remained virtually untouched.
Today, the Bellona Foundation is launching the establishment of the Center for Marine Restoration in Kabelvåg, Lofoten. At the same time, collaboration agreements related to the center were signed with Norrøna, the University of Tromsø, the Lofoten Council and Blue Harvest Technologies
To ensure that Germany achieves its goal of climate neutrality by 2045, negative emissions are necessary, as depicted in the global IPCC scenarios.