Skip to content
All articles
  • All articles
  • About whales & dolphins
  • Create healthy seas
  • End captivity
  • Fundraising
  • Green Whale
  • Kids blogs
  • Prevent deaths in nets
  • Scottish Dolphin Centre
  • Stop whaling
Dead sperm whale in The Wash, East Anglia, England. © CSIP-ZSL.

What have dead whales ever done for us?

When dead whales wash up on dry land they provide a vital food source for...
Risso's dolphin © Andy Knight

We’re getting to know Risso’s dolphins in Scotland so we can protect them

Citizen scientists in Scotland are helping us better understand Risso's dolphins by sending us their...
Pilot whales pooing © Christopher Swann

Talking crap and carcasses to protect our planet

We know we need to save the whale to save the world because they are...
Fin whale (balaenoptera physalus) Three fin whales Gulf of California.

Speaking truth to power – my week giving whales a voice

The International Whaling Commission (IWC) meeting is where governments come together to make decisions about whaling...

Why do whales and dolphins strand on beaches?

People often ask me 'why' whales and dolphins do one thing or another.  I'm a...
A spinner dolphin leaping © Andrew Sutton/Eco2

Head in a spin – my incredible spinner dolphin encounter

Sri Lanka is home to at least 30 species of whales and dolphins, from the...
Orca (ID171) breaches off the coast of Scotland © Steve Truluck.

Watching whales and dolphins in the wild can be life changing

Whales and dolphins are too intelligent, too large and too mobile to ever thrive in...
Kiska the orca

Real stories from the dark side of captivity

Since we launched our campaign, we've been talking a lot about what a dark place...

20th Biennial Conference on the Biology of Marine Mammals Part 1

Wind, Whales, and Dolphins – the conservation impacts of marine renewables

The 20th Biennial Conference on the Biology of Marine Mammals is taking place this week in Dunedin, New Zealand.  This is the largest international conference focused on marine mammals and WDC is there to present our conservation work to the world. 

“Many difficult and complex conservation issues highlighted at this conference. One issue which floats to the top as having increasing significance is the growing industry of marine renewable energy. Whilst the need to replace our dependence on fossil fuels is paramount, a new report from WDC (7.5mb) on this issue also helped to highlight the need for greater collaboration between those developing marine renewables and the need for further research to determine critical coastal habitat to avoid conflicts between marine renewable developments and marine wildlife, especially marine mammals.”– Philippa Brakes, Senior Biologist, WDC

PRESENTATION ABSTRACT: The marine renewables dilemma –  Brakes, Philippa 1; Simmonds, Mark Peter 2 – (1) Whale and Dolphin Conservation   (2) Humane Society International

Marine renewable energy installations are developing at great speed all around the world as part of efforts to tackle Climate Change. A variety of associated potential threats to marine mammals have been identified. Common concerns for all types of renewable devices include the noise made especially during construction, particularly where piledriving is involved. In addition, structures may be a source of chemical contaminants, including antifouling treatments. Construction and operational noise may lead to displacement and other behavioural changes. Intense noise might cause impairment of auditory senses; and/or masking and stress responses. Tidal-stream energy devices typically comprise turbines that are entirely submerged and moving at speed (commonly up to 12 m.s-1, or 43 kph) relative to the streaming water mass, presenting a collision risk. Wave energy converters also represent a collision risk; as does the increased vessel traffic associated with construction and maintenance work. Vessels may be of novel design in order to operate within the renewable arrays or hold themselves static without anchoring, and this may bring new risks.

These concerns have been well sketched but there is very little relevant information to inform this rapidly expanding multifaceted industry; most relevant studies have been done in Europe and mainly concern the harbour porpoise. Individual installations and arrays are all set to become far larger than the operations that are in place currently which presents challenges in terms of extrapolation of impacts based on current monitoring. The marine renewables industry is widely regarded as an important part of future energy security and, as such, it tends to have high level political support. However, this is an unprecedented incursion by industry into inshore and offshore habitats, including what balanced and more precautionary strategy is needed that attempts to reconcile energy needs, uncertainty, conservation and welfare.