The universities of Zurich, New Zealand and Australia are conducting an international joint study. It’s about the fact that blue whales And sperm whales they will move to lower latitudes as the oceans warm. Researchers have already studied a complex model of the regional shift in the range of blue whales and sperm whales. All anticipating the year 2100 on various climate change scenarios.
The study confirms the southward movement of the two species’ habitat. It increases in size with the heating fromOcean. The climate change more severe already tested has resulted in a loss and decrease of 61% and 42% of the habitat. The latter is now suitable for blue whales and sperm whales. Right in the north of New Zealand.
Regardless of which of the climate change scenarios materializes, even the best-case scenario indicates remarkable changes in the distribution of habitats suitable for sperm whales and blue whales in New Zealand.
Katharina Peters from the University of Zurich, head of research
New Zealand, like island nations, is really vulnerable to climate change on the islands marine ecosystems. Sperm whales are essential for local economy And tourism in New Zealand. Sperm whales and blue whales are important to the ecosystem because they facilitate the transfer of nutrients from the depths of the water to the surface.
The whale watching industry off Kaikoura could potentially be jeopardized by increasingly less reliable sperm whale sightings off that coast. Such changes in the distribution of sperm whales would have a socio-economic effect due to the direct and indirect reliance on whale watching by the local economy.
Professor Karen Stockin, at Massey University’s Cetacean Ecology Research Group
Such areas have the potential to act as a climatic refuge for both species, knowing that these areas will soon present an opportunity for their better protection in the future, especially when considering the placement of marine protected areas and oil exploration legislation and gas.
Frédérik Saltré, senior author and co-leader of Flinders University’s Global Ecology Lab
Source: Lega Nerd
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