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Displaying items by tag: marine wildlife

Did you know that our Native oysters have been an important food source for centuries - the Romans even exported them back to Italy!

The first report of a recognised commercial oyster fishery in Belfast Lough was in 1780 and although the native oyster has been considered extinct there since 1903, in the summer of 2020, live oysters were discovered for the first time in over 100 years – evidence that the environmental conditions for establishment are right.

The charity, Ulster Wildlife Trust, is hoping to establish the first native oyster nursery in Northern Ireland in Bangor Marina on Belfast Lough to support the declining population and to help create a natural long-term carbon store to tackle climate change. So under F, G and H Pontoons, Ulster Wildlife's Heidi McIlvenny with Harbour Master Kevin Baird and his staff will deploy a native oyster nursery.

Highly prized Loch Ryan OystersHighly prized Loch Ryan Oysters

Around 26 cages will be suspended under the pontoon walkways and will be populated with highly prized Loch Ryan Oysters. The Loch Ryan Oyster Bed, one of Scotland’s largest, dates to 1701 when King William 111 granted a Royal Charter to the Wallace family.

The native or flat oyster stays fixed in one place and is a filter feeder meaning it uses its valves to pump water filtering out microscopic algae and small organic particles from the surrounding water. A single oyster can filter up to 200 litres of seawater per day, which can significantly improve water quality and clarity.

Already thriving in another Marina in Conwy Wales, over time the oysters will start releasing oyster larvae into the harbour which will be carried out to settle on the seabed, ultimately resulting in cleaner waters and better marine biodiversity.

Classified as a Priority Species under the UK Post-2010 Biodiversity Framework and a Feature of Conservation Importance for which Marine Conservation Zones can be designated, the oyster has a lifespan of six years.

Harbour Master Kevin Baird would like to get local schools involved after the oysters are in place. “It’s a great environmental project with many very positive benefits”. He added “There will be no disruption to marine traffic”.

Published in Belfast Lough

New antibiotics in the world’s oceans and the curative properties of marine animals like sponges will be explored in a European project involving researchers at University College Cork (UCC).

The EU has awarded a total of €7.5 million under its Horizon 2020 programme to the research into the largely unknown potential of the world’s oceans in protecting people, animals and crops from disease.

The Marine Biodiversity as Sustainable Resource of Disease-Suppressive Microbes and Bioprotectants for Aquaculture and Crop Diseases project, as it is officially known, has been given the name “Marbles”.

The research team will look specifically for new antibiotics and anti-fungals as well as microbes that can serve as “bio-protectants” in agriculture and aquaculture.

Synthetic chemicals currently used in pharmaceutical, agriculture and aquaculture have a devastating impact on marine life and this research is looking for sustainable solutions, according to the UCC research team.

The project will assess the potential of microorganisms derived from marine sponges, microalgae and fish for disease suppression.

They explain that “disease-suppressive” microorganisms will be drawn from "microbiomes", the complex collection of microorganisms that live in and around their marine hosts.

The world’s growing population and the current climate and biodiversity crises are driving the need to harness new compounds with pharmaceutical and nutritional applications sustainably, the UCC team says.

Prof Alan Dobson and Dr David Clarke from the UCC School of Microbiology and the Environmental Research Institute said that they were particularly excited about collaborating with the other 13 European partners from both academia and industry.

One project they hope to focus on involves isolating and genetically characterising disease suppressive microorganisms from the microbiome of Atlantic salmon.

These may then be generated into cocktails of microbial consortia, which could then be used either within fish feed as probiotics, or applied externally to boost the skin’s immune response in the salmon, they state.

This will improve disease control and overall fish health, and should decrease the dependency of using antibiotics in fish aquaculture systems while also reducing the potential spread of antimicrobial resistance in aquatic ecosystems, they state.

Published in Marine Science

There have been many reports of orcas - aka “killer whales” - attacking boats off the coast of Portugal and Spain. But large and all as they are, orcas are among the smaller whale species. And it seems that the bigger the whale, the more confident and friendly they are.

This drone video shows first one and then a pair of southern right whales interacting in the most harmless possible way with a very cool paddle boarder for an extraordinary inter-species experience. But as with everything to do with humans and whales, there’s a twist to the tale.

The “right whale” is so named because if you were on a whaling expedition, this was the right whale to hunt and slaughter for optimal profitability. Despite that, the sub-species has survived, and numbers are now back at healthy level.

Published in Marine Wildlife
Tagged under

Brown crabs are “mesmerised” by electromagnetism from underwater power cables laid around Scotland for offshore wind farms, a newly published study has found.

The edible crab Cancer pagurus displayed a clear attraction to the underwater cables, the study published in the Journal of Marine Science and Engineering has found.

Scientists at Edinburgh’s Heriot-Watt University focused on the behaviour of a group of about 60 crabs at St Abbs marine station on the Scottish borders.

They found the higher levels of electromagnetism emanating from the cables caused cellular changes affecting the crabs’ blood cells.

“Underwater cables emit an electromagnetic field. When it’s at a strength of 500 microteslas and above, which is about 5 per cent of the strength of a fridge door magnet, the crabs seem to be attracted to it and just sit still,” Alastair Lyndon of Heriot-Watt University said.

“If they’re not moving, they’re not foraging for food or seeking a mate. The change in activity levels also leads to changes in sugar metabolism,” he said.

“ They store more sugar and produce less lactate, just like humans.”

“The aquarium lab is composed entirely of non-metallic materials, which means there is minimal electromagnetic interference,” Kevin Scott of St Abbs marine station said.

“ We found that exposure to higher levels of electromagnetic field strength changed the number of blood cells in the crabs’ bodies. This could have a range of consequences, like making them more susceptible to bacterial infection.”

Brown crabs are Britain’s second most valuable crustacean, and the most valuable inshore, catch. The scientists say the findings show how fishing markets could be affected by the change in crab behaviour.

The researchers have called for further research to ensure extensive underwater cabling required for Scottish coast wind farms does not destabilise the brown crab population.

Lyndon pointed out that if male brown crabs stop migrating up the east coast of Scotland, due to the impact of cables, it could affect population levels in the north-east and off the islands – and, by extension, the livelihoods of inshore fishermen.

Burying cables could provide a solution, but it is regarded as costly and posing maintenance challenges.

“We need to investigate further technical solutions so that we don’t create negative environmental effects while trying to decarbonise our energy supply,”Lyndon said.

The full study in the Journal of Marine Science and Engineering can be read here.

 

Published in Power From the Sea
Tagged under

New research at Queen’s University highlights the impact that microplastics are having on hermit crabs, which play an important role in balancing the marine ecosystem.

The research found that microplastics are affecting the behaviour of hermit crabs, namely their ability during shell fight contests, which are vital to their survival.

There is a strong association between hermit crabs and their shelters or shells, which are taken from marine snails to protect their soft abdomens. As the hermit crab grows over the years, it will need to find a succession of larger and larger shells to replace the ones that have become too small. They can achieve this through a contest, termed a shell fight, involving the ‘attacker’ rapping their shell against the ‘defender’ in an attempt to evict the opponent from its shell. In these contests, the hermit crabs will fight a competitor to secure the shell that they favour. These shells are vital in protecting and enabling hermit crabs to grow, reproduce and survive.

The new study builds on previous research by Queen’s University that showed hermit crabs were less likely to touch or enter high-quality shells when exposed to microplastics.

Hermit crabs were less likely to touch or enter high-quality shells when exposed to microplasticsHermit crabs were less likely to touch or enter high-quality shells when exposed to microplastics

The new study, published in Royal Society Open Science, provides a more in-depth insight into how the hermit crabs behaviour is affected when exposed to microplastics. The microplastics impair both the attacking and defending behaviour of hermit crabs during contests, impeding their ability to secure the larger shell that is required for both their growth and survival.

The research involved keeping hermit crabs in two tanks: one which contained polyethylene spheres (a common microplastic pollutant) and one without plastic (control) for five days. The team simulated the environment to encourage a hermit crab contest through placing pairs of hermit crabs in an arena, giving the larger crab a shell that was too small and the smaller crab a shell that was too big. Plastic-exposed hermit crabs displayed weaker attacking behaviour (known as rapping) during fights than crabs that were not exposed to plastic. Microplastics also reduced the ability of defending crabs to properly assess their attackers during contests and impaired their decision to give up their shell earlier.

Hermit crabs are known as scavengers as they recycle energy back into the ecosystem through eating up decomposed sea-life and bacteria. As such they play a vital role in rebalancing the ecosystem and are an important part of marine life.

Manus Cunningham from Queen’s University and one of the lead researchers on the paper, said: “These findings are hugely significant as they illustrate how both the information-gathering and shell evaluations were impaired when exposed to microplastics.

“Although 10% of global plastic production ends up in the ocean, there is very limited research on how this can disrupt animal behaviour and cognition. This study shows how the microplastic pollution crisis is threatening biodiversity more than is currently recognised.”

Dr Gareth Arnott, the principal investigator of the project said: “This study provides an insight into the potential for microplastics to alter important aspects of animal behaviour that are critical for survival and reproduction. We need to further investigate how microplastics affect their behaviour and the consequences, armed with this knowledge to advocate for change to protect our ecosystem.”

Published in Marine Science

Ireland has joined an international agreement to establish a marine protected area (MPA) in the North Atlantic Current and Evlanov sea basin.

The area is located in the high seas, to the west of the Ospar maritime area in the north-east Atlantic.

It covers 595,196 km² - over eight times the size of Ireland’s land area.

The designated area is home to up to five million seabirds across 21 different species, including five – such as the Atlantic Puffin – that are globally threatened.

Other threatened species, like the wide-ranging Basking Shark and Leatherback Turtle, also inhabit the ocean area.

Ireland’s commitment to the new MPA was announced on Friday by Minister of State for Heritage and Reform Malcolm Noonan at an Ospar ministerial meeting in Cascais, Portugal.

The Ospar Commission for the Protection of the Marine Environment of the North-East Atlantic, an international organisation, has been chaired by Ireland since 2018.

The commission also approved a North-East Atlantic Environment Strategy.

It has 12 strategic objectives and over 50 practical, operational objectives to tackle the triple challenges of climate change, biodiversity loss and pollution (including marine litter) facing the oceans,Mr Noonan said.

Its implementation will be part of Ospar’s contribution to the achievement of the United Nations 2030 Agenda for Sustainable Development, Noonan said.

Published in Marine Wildlife

University College Cork (UCC) says it is providing support to its staff who were passengers on the aircraft that was forced to make an emergency landing at Carne beach in Co Wexford on Thursday.

The staff were conducting marine life surveys in Irish offshore waters as part of the ObSERVE II project, UCC has confirmed.

An Air Accident Investigation Unit (AAIU) inquiry has been initiated into the light aircraft crash which occurred at about 5.10 pm on September 23rd.

The €4.5 million ObSERVE programme has been conducting aerial surveys of almost 500,000km2 of Ireland’s maritime area.

It is being funded by several Government departments as part of planning for offshore renewable and other marine activities which could have an impact on sensitive marine ecosystems.

The UCC team is led by Dr Mark Jessopp and Professor Emer Rogan from the School of Biological, Earth and Environmental Sciences, with partners from Action Air, France, Wageningen University and Research in the Netherlands and Duke University in the US.

The four occupants of the aircraft - two men aged in their 20s and 50s and two women both aged in their 30s - sustained non life-threatening injuries in the incident.

The wreckage of the French-registered Vulcanair P68 twin-engined, four-seater aircraft has been recovered by the AAIU for delivery to Gormanston, Co Meath for a full examination.

AAIU chief Jurgen Whyte told RTÉ News that it was not yet clear if it was an engine problem or control issue that led to the emergency landing, and also credited the pilot for his successful manoeuvre.

The pilot had issued a “Mayday” after it got into trouble off the Wexford coast, and had to transit a nearby wind farm to approach the beach.

The sudden “deceleration” in approaching the beach would have resulted in injury, Whyte explained.

An eye witness, Niall Hore, has told the Padraig Byrne of The Wexford People that the four occupants were very fortunate and paid tribute to the pilot.

Hore, who had gone to Carne beach for some sea angling, said he and several Northern Irish anglers witnessed the incident.

“We ran down and two people were out of the plane and were shouting for us to call 112. The two people in the back of the plane were able to get out and had dragged out the pilot and co-pilot and they were propped up against the plane,” Hore said.

"The plane was very bent up at the front and I knew that the pilots’ legs must have been in a bad way,” he said.

“We just tried to keep them talking to make sure they were OK. We asked them where they came from and they said they took off from Waterford and that they were on their last run doing marine surveys in the area,” he said.

"One of the women was pretty bad and was covered in blood and not saying much, so we tried to talk to her to make sure she was OK. As it turned out, one of the crew was from Northern Ireland and was from the same area as the two other fishermen who were on the beach, he added.

“He did very well to get it down just at the shore,” Niall Hore said.

“I’m just glad he didn’t land further out in the water because the current is unreal there and it would have been very hard to get to them. It definitely wasn’t an easy thing for him to do. I’m just really glad that everyone is going to be alright, “he said.

Read more in The Wexford People here

Published in Marine Wildlife
Tagged under

Birdwatch Ireland says it is “deeply concerned” at a refusal by the Court of Appeal to continue the Government’s interim ban on large vessels fishing inside the six nautical mile zone.

The stay was applied for by Minister for Marine Charlie McConalogue, pending a Court of Appeal ruling on a permanent ban.

A full hearing took place on June 22nd, and judgement was reserved.

The case arose after former marine minister Michael Creed announced in December 2018 that vessels over 18 metres (m) would be excluded from trawling inside the six nautical mile zone and the baselines from January 1st, 2020.

A three-year transition period was granted for vessels over 18m targeting sprat, as the fishery is concentrated inside the six nautical mile zone.

Birdwatch Ireland says the ban followed extensive consultation and was supported by “expert analysis by the Marine Institute and the Bord Iascaigh Mhara”.

“These reports highlighted that restricting the access of larger vessels inside the six nautical mile zone would lead to improved protection of coastal environments and essential fish habitat, benefitting marine biodiversity and commercially exploited fish stocks,” the NGO said.

“They highlighted the socio-economic benefits for the smaller inshore vessels, that constitute the vast majority of Ireland’s registered fishing vessels. The potential benefits included diversification opportunities, more jobs, and added value of landings,” it said.

“Improved management of inshore waters could be achieved by aligning fishing more closely with local ecological and environmental objectives and by reducing conflict between mobile and static gears,” it said.

It said it could also strengthen the link between local fish resources and local economies.

Two fishermen sought a judicial review, challenging the validity of the policy. The High Court ruled on October 6th 2020 that the policy was made in breach of fair procedures, and was void and/or of no legal effect.

After a call by a number of NGOs, the minister appealed the High Court decision to the Court of Appeal.

Birdwatch Ireland policy officer Fintan Kelly said that it was of “serious concern”, that 2019 sprat catches increased significantly - relative to 2016-2018 - to 13,000 tonnes, at a value of approximately €3.5 million.

“Anecdotal evidence from inshore fishermen and anglers around the coast suggest that landings in 2020 may again be an increase on 2019 levels putting significant pressure on the marine environment,” he said.

“We now fear that overfishing of sprat will again occur this winter because of this ruling,” Kelly said.

He noted that European sprat is a critically important species, linking plankton and top predators including seabirds and marine mammals.

Sprat are also an important forage fish species for commercial fish species like herring, Kelly said, and overfishing poses “a significant risk to the health of commercial fish stocks which poses socio-economic implications for the fishing industry”.

“This is especially relevant when considering that three out of the five herring stocks that Irish fisher’s exploit has collapsed, and have zero catch advice for 2021,” he added.

He said BirdWatch Ireland’s research shows that sprat is an important prey species for 12 out of the 23 regularly occurring breeding seabirds in Irish waters. Many of these species are Amber-listed birds of conservation concern.

Overfishing sprat is also a threat to the whale species that pass through Irish waters during the summer months and which rely heavily on Sprat, he said, with up to half of the fin whale diet and 70 per cent of the humpback whale diet relying on young sprat and herring.

Published in Fishing
Tagged under

New research led by the University of Oxford says that successful conservation policies for marine mammals have increased the potential for conflict with small scale fishing communities.

The study published in the journal Conservation Letters says that management has to strike a balance, and the international community “needs to incorporate the needs and opinions of fishers in the global dialogue”.

This should include “considering if protecting human welfare could involve reducing protection for marine mammals”, the research states.

The paper drew on the experience of fisheries on the west coast of South America to highlight what the researchers describe as a “worldwide issue”.

“Globally, conflict between recovering seal and sea lion populations and fishing communities has been escalating,” the authors state.

They note that in South America, specifically Peru and Chile, marine mammals have been protected since the mid-20th century.

“ Conservation policies have mostly been successful and over the last thirty years marine mammal populations - specifically those of sea lions and seals - have recovered,” they state.

“ However, this recovery means that there’s a much higher likelihood that these animals will come into conflict with local fishers,” they say.

The study found that nearly nine out of ten fishers have a negative impression of sea lions, and they estimate that on average sea lions reduce their catch and income by over 50%.

“Whilst it’s illegal for sea lions and seals to be killed, this is happening regularly with over 70% of fishers admitting that sea lions are being killed to defend catches,”the study says.

It says that “fishers’ overwhelming concern is that sea lion populations are now too large”.

“To manage this conflict, there’s a need to balance the competing objectives of wildlife conservation with protection for local communities,”the researchers state.

“ There’s still concern about sea lion and seal populations because of how recently they’ve recovered, but small-scale fisheries are struggling, and fishers are often earning less than the minimum wage,”they note.

“If the global community is committed to a post-2020 deal for nature and people where improvements to people's wellbeing and nature conservation are both fulfilled - the elusive ‘win-win’ - then governments and scientists must engage with these “messy” local conflicts that repeat across the globe but resist high-level simplification,”lead author Professor Katrina Davis, noted.

The study says that sea lions and seals eat the same fish targeted by fisheries, and it is not uncommon for fishers to catch fish that have already been “nibbled” by the marine mammals.

This is a similar situation in Ireland with competition between seals and inshore vessels.

Marine mammals can also be accidentally caught in fishing nets.

“A tricky balance must be met between ensuring the future viability of marine mammal populations and ensuring that the livelihoods of small-scale fishers are protected. Fishers perceive that they are suffering large catch and income losses because of sea lions—and it’s these perceptions that we have to manage when we’re developing policy solutions,” Prof Davis says.

The researchers say the plan to investigate the impact of culls, and whether this would be viable without harming population levels, and whether it would curb aggression towards marine mammals.

The full paper can be read here

Published in Marine Wildlife
Tagged under

The largest ever coastal clean-up in Northern Ireland is planned for later this month - if enough volunteers turn up.

Live Here Love Here has sent out a call to people to "play their part" in cleaning up their nearest beach on Saturday and Sunday September 18-19.

The `community and civic pride initiative' is holding the event to mark the start of its annual Healthy Oceans, Healthy Minds campaign, in partnership with Belfast Harbour.

Helen Tomb, of Live Here Love Here said while people "feel better when they're near the sea... the benefit is hugely reduced by the presence of litter, which upsets people and makes them really angry".

"Taking direct action enables people to channel those feelings positively. Volunteering, even for a day, enables people to do their bit, meet new friends and gives everyone a real lift."

The Irish News has more here.

Published in Coastal Notes
Page 1 of 56

Ireland's Offshore Renewable Energy

Because of Ireland's location at the Atlantic edge of the EU, it has more offshore energy potential than most other countries in Europe. The conditions are suitable for the development of the full range of current offshore renewable energy technologies.

Offshore Renewable Energy FAQs

Offshore renewable energy draws on the natural energy provided by wind, wave and tide to convert it into electricity for industry and domestic consumption.

Offshore wind is the most advanced technology, using fixed wind turbines in coastal areas, while floating wind is a developing technology more suited to deeper water. In 2018, offshore wind provided a tiny fraction of global electricity supply, but it is set to expand strongly in the coming decades into a USD 1 trillion business, according to the International Energy Agency (IEA). It says that turbines are growing in size and in power capacity, which in turn is "delivering major performance and cost improvements for offshore wind farms".

The global offshore wind market grew nearly 30% per year between 2010 and 2018, according to the IEA, due to rapid technology improvements, It calculated that about 150 new offshore wind projects are in active development around the world. Europe in particular has fostered the technology's development, led by Britain, Germany and Denmark, but China added more capacity than any other country in 2018.

A report for the Irish Wind Energy Assocation (IWEA) by the Carbon Trust – a British government-backed limited company established to accelerate Britain's move to a low carbon economy - says there are currently 14 fixed-bottom wind energy projects, four floating wind projects and one project that has yet to choose a technology at some stage of development in Irish waters. Some of these projects are aiming to build before 2030 to contribute to the 5GW target set by the Irish government, and others are expected to build after 2030. These projects have to secure planning permission, obtain a grid connection and also be successful in a competitive auction in the Renewable Electricity Support Scheme (RESS).

The electricity generated by each turbine is collected by an offshore electricity substation located within the wind farm. Seabed cables connect the offshore substation to an onshore substation on the coast. These cables transport the electricity to land from where it will be used to power homes, farms and businesses around Ireland. The offshore developer works with EirGrid, which operates the national grid, to identify how best to do this and where exactly on the grid the project should connect.

The new Marine Planning and Development Management Bill will create a new streamlined system for planning permission for activity or infrastructure in Irish waters or on the seabed, including offshore wind farms. It is due to be published before the end of 2020 and enacted in 2021.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE. Is there scope for community involvement in offshore wind? The IWEA says that from the early stages of a project, the wind farm developer "should be engaging with the local community to inform them about the project, answer their questions and listen to their concerns". It says this provides the community with "the opportunity to work with the developer to help shape the final layout and design of the project". Listening to fishing industry concerns, and how fishermen may be affected by survey works, construction and eventual operation of a project is "of particular concern to developers", the IWEA says. It says there will also be a community benefit fund put in place for each project. It says the final details of this will be addressed in the design of the RESS (see below) for offshore wind but it has the potential to be "tens of millions of euro over the 15 years of the RESS contract". The Government is also considering the possibility that communities will be enabled to invest in offshore wind farms though there is "no clarity yet on how this would work", the IWEA says.

Based on current plans, it would amount to around 12 GW of offshore wind energy. However, the IWEA points out that is unlikely that all of the projects planned will be completed. The industry says there is even more significant potential for floating offshore wind off Ireland's west coast and the Programme for Government contains a commitment to develop a long-term plan for at least 30 GW of floating offshore wind in our deeper waters.

There are many different models of turbines. The larger a turbine, the more efficient it is in producing electricity at a good price. In choosing a turbine model the developer will be conscious of this ,but also has to be aware the impact of the turbine on the environment, marine life, biodiversity and visual impact. As a broad rule an offshore wind turbine will have a tip-height of between 165m and 215m tall. However, turbine technology is evolving at a rapid rate with larger more efficient turbines anticipated on the market in the coming years.

 

The Renewable Electricity Support Scheme is designed to support the development of renewable energy projects in Ireland. Under the scheme wind farms and solar farms compete against each other in an auction with the projects which offer power at the lowest price awarded contracts. These contracts provide them with a guaranteed price for their power for 15 years. If they obtain a better price for their electricity on the wholesale market they must return the difference to the consumer.

Yes. The first auction for offshore renewable energy projects is expected to take place in late 2021.

Cost is one difference, and technology is another. Floating wind farm technology is relatively new, but allows use of deeper water. Ireland's 50-metre contour line is the limit for traditional bottom-fixed wind farms, and it is also very close to population centres, which makes visibility of large turbines an issue - hence the attraction of floating structures Do offshore wind farms pose a navigational hazard to shipping? Inshore fishermen do have valid concerns. One of the first steps in identifying a site as a potential location for an offshore wind farm is to identify and assess the level of existing marine activity in the area and this particularly includes shipping. The National Marine Planning Framework aims to create, for the first time, a plan to balance the various kinds of offshore activity with the protection of the Irish marine environment. This is expected to be published before the end of 2020, and will set out clearly where is suitable for offshore renewable energy development and where it is not - due, for example, to shipping movements and safe navigation.

YEnvironmental organisations are concerned about the impact of turbines on bird populations, particularly migrating birds. A Danish scientific study published in 2019 found evidence that larger birds were tending to avoid turbine blades, but said it didn't have sufficient evidence for smaller birds – and cautioned that the cumulative effect of farms could still have an impact on bird movements. A full environmental impact assessment has to be carried out before a developer can apply for planning permission to develop an offshore wind farm. This would include desk-based studies as well as extensive surveys of the population and movements of birds and marine mammals, as well as fish and seabed habitats. If a potential environmental impact is identified the developer must, as part of the planning application, show how the project will be designed in such a way as to avoid the impact or to mitigate against it.

A typical 500 MW offshore wind farm would require an operations and maintenance base which would be on the nearby coast. Such a project would generally create between 80-100 fulltime jobs, according to the IWEA. There would also be a substantial increase to in-direct employment and associated socio-economic benefit to the surrounding area where the operation and maintenance hub is located.

The recent Carbon Trust report for the IWEA, entitled Harnessing our potential, identified significant skills shortages for offshore wind in Ireland across the areas of engineering financial services and logistics. The IWEA says that as Ireland is a relatively new entrant to the offshore wind market, there are "opportunities to develop and implement strategies to address the skills shortages for delivering offshore wind and for Ireland to be a net exporter of human capital and skills to the highly competitive global offshore wind supply chain". Offshore wind requires a diverse workforce with jobs in both transferable (for example from the oil and gas sector) and specialist disciplines across apprenticeships and higher education. IWEA have a training network called the Green Tech Skillnet that facilitates training and networking opportunities in the renewable energy sector.

It is expected that developing the 3.5 GW of offshore wind energy identified in the Government's Climate Action Plan would create around 2,500 jobs in construction and development and around 700 permanent operations and maintenance jobs. The Programme for Government published in 2020 has an enhanced target of 5 GW of offshore wind which would create even more employment. The industry says that in the initial stages, the development of offshore wind energy would create employment in conducting environmental surveys, community engagement and development applications for planning. As a site moves to construction, people with backgrounds in various types of engineering, marine construction and marine transport would be recruited. Once the site is up and running , a project requires a team of turbine technicians, engineers and administrators to ensure the wind farm is fully and properly maintained, as well as crew for the crew transfer vessels transporting workers from shore to the turbines.

The IEA says that today's offshore wind market "doesn't even come close to tapping the full potential – with high-quality resources available in most major markets". It estimates that offshore wind has the potential to generate more than 420 000 Terawatt hours per year (TWh/yr) worldwide – as in more than 18 times the current global electricity demand. One Terawatt is 114 megawatts, and to put it in context, Scotland it has a population a little over 5 million and requires 25 TWh/yr of electrical energy.

Not as advanced as wind, with anchoring a big challenge – given that the most effective wave energy has to be in the most energetic locations, such as the Irish west coast. Britain, Ireland and Portugal are regarded as most advanced in developing wave energy technology. The prize is significant, the industry says, as there are forecasts that varying between 4000TWh/yr to 29500TWh/yr. Europe consumes around 3000TWh/year.

The industry has two main umbrella organisations – the Irish Wind Energy Association, which represents both onshore and offshore wind, and the Marine Renewables Industry Association, which focuses on all types of renewable in the marine environment.

©Afloat 2020

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