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Humpback whale underwater

Climate giants – how whales can help save the world

We know that whales, dolphins and porpoises are amazing beings with complex social and family...
Black Sea common dolphins © Elena Gladilina

The dolphin and porpoise casualties of the war in Ukraine

Rare, threatened subspecies of dolphins and porpoises live in the Black Sea along Ukraine's coast....
WDC's Ed Fox, Chris Butler-Stroud and Carla Boreham take a message from the ocean to parliament

Taking a message from the ocean to parliament

It's a sad fact that whales and dolphins don't vote in human elections, but I...
Minke whale © Ursula Tscherter - ORES

The whale trappers are back with their cruel experiment

Anyone walking past my window might have heard my groan of disbelief at the news...
Boto © Fernando Trujillo

Meet the legendary pink river dolphins

Botos don't look or live like other dolphins. Flamingo-pink all over with super-skinny snouts and...
Tokitae in captivity

Talking to TUI – will they stop supporting whale and dolphin captivity?

Last Thursday I travelled to Berlin for a long-anticipated meeting with TUI senior executives. I...

Earth Day Q&A with Waipapa Bay Wines’ marketing director, Fran Draper

We've been partnered with Waipapa Bay Wines since 2019 so for this year's Earth Day,...
Orcas at the seabed

The secrets of orca beach life

Rubbing on smooth pebbles is a generations-old cultural tradition for a particular group of orcas...

Important developments for naval sonar and impacts of pile driving

WDC was pleased to be asked to present at the first public forum (that I know of) on Sea Mammals and Active Sonar Symposium this week. You can see our contribution: sonar_symposium_2015.pdf. This is the first of two big noise developments that I want to mention.

Whilst we are always impatient for developments to mitigate impacts to move more quickly, and for navies to develop more robust planning strategies, it was a very welcome step that European (Norway, Netherlands, UK, France, Germany, Denmark and Sweden) and US Navies gathered to discuss the management measures that they each undertake to protect marine life during military exercises. Such collaboration and focus on robust ways to mitigate behavioural  impacts, as well as injury, is a solid step forward.

Things are less encouraging on the pile driving front. We now have the first calculated evidence of the potential for harbour porpoise populations to be seriously affected by the accumulation of pile driving undertaken to build wind farms by all nations in the North Sea. The report states that the impacts of seismic surveys for oil and gas deposits are of the same order of magnitude as piling to install wind farms.

Impacts for both avoidance (disturbance) and injury have been presented. The results predicted average reduction in the North Sea porpoise population of 23% from 2016 to 2022 under one scenario provided in the scientific report. This study does not consider the additional impacts that porpoises and seals face other than pile driving or seismic surveys, such as those due to pollution, being caught in fishing nets or because of reductions in prey availability.

The UK and devolved governments need to seriously consider this important scientific report – and revise their current marine mammal mitigation policies accordingly. The existing German mitigation measures to reduce the noise at the source (which are much more advanced and precautionary than those adopted in the UK) lead to a major reduction in porpoises that are disturbed. To be able to meet our legal commitments, and to protect porpoises and seals from disturbance and injury, all countries in Europe need to make much more effort to reduce noise pollution at the source when building offshore wind farms – either by not piling or by using source reduction mitigations.  

WDC have continuously raised concerns about the potential impacts of pile driving to porpoises and other species.