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A Harbour Seal photographed at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinnipeds, they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic and North seas. Photo: AfloatA photograph of a Harbour Seal taken at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, this species can be found along temperate and Arctic marine coastlines throughout the Northern Hemisphere. They are the most widely distributed species of pinnipeds and can be found in the coastal waters of the northern Atlantic and Pacific oceans, as well as the Baltic and North Seas. Photo: Afloat

Displaying items by tag: Porpoise

The first case of a grey seal predation on a harbour porpoise in Irish waters has been confirmed, the Irish Whale and Dolphin Group (IWDG) says.

Video of the incident off Clogherhead in Co Louth on Sunday 14 November was submitted to the marine wildlife charity. It appears to show an adult grey seal with a porpoise calf in its mouth and attempting to drown its victim before feeding on it.

Sightings officer Pádraig Whooley said there was “little doubt” as to what was occurring in the footage, which can be seen below. Some viewers may find the video disturbing:

Andy Smith, who was fishing on the pier in Clogherhead when he shot the video, said: “We initially saw the mother and baby about 200m out to sea but about 20 minutes later the seal surfaced with the baby porpoise in its mouth.

“It was quite violent and bloody. Thankfully there were no kids around to witness it. Nature raw in tooth and claw I suppose.”

Whooley added that the incident, while rare, is not without precedent. A paper published in the journal Marine Mammal Science in 2014 offered the first evidence of grey seal predation on harbour porpoise in the English Channel and North Sea.

“However, this behaviour has never before been documented in Irish waters, which is surprising given the large populations we have of both coastal species,” he said.

The incident now opens questions as to whether this is indeed new behaviour from an Irish seal “or one that has simply never before been witnessed or recorded in Ireland”.

In addition, it is not confirmed whether the seal in the video is from an Irish resident population or one that travelled here from the North Sea area.

Whooley also posits: “What are the likely implications at population level for the resident harbour porpoises of Clogherhead and beyond? Especially given that areas like north Co Dublin have some of the highest densities of porpoises in Irish waters.”

Published in Marine Wildlife
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Marine scientists have published landmark advice to the European Commission for urgent action to protect dolphins and porpoise in European waters.

According to EU Reporter, the International Council for the Exploration of the Sea (ICES) is advocating for ‘emergency measures’ to prevent bycatch of these vulnerable marine wildlife amid fishing activity in the Bay of Biscay and Baltic Sea.

ICES also insists that such measures, including the closure of some fisheries, would have to be instituted over the long term to ensure the future survival of the species under threat.

The move comes after a network of NGOs, which included the Irish Whale and Dolphin Group, last year called on the Commission to take action against 15 EU member states for failing in their cities to protect cetaceans from bycatch in the North East Atlantic.

EU Reporter has much more on the story HERE.

Published in Marine Wildlife
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Electronic navigation safety technology is to be used to study the potential impacts of marine traffic on whale, dolphin and porpoise species off western Scotland in a new season of research expeditions launched by Hebridean Whale and Dolphin Trust this week.

For the first time, scientists and trained volunteers onboard the conservation charity’s specialized research yacht Silurian will use an Automatic Identification System (AIS) transponder to collect detailed data on other vessels’ movements. This will be combined with sightings and underwater acoustic monitoring of cetaceans – the collective name for whales, dolphins and porpoises – to gain new insights into how species are affected by ships’ movements and noise.

AIS – an automatic tracking system that electronically identifies and locates nearby vessels, continuously transmitting details of their identity, position, speed and course – is more commonly used in navigation safety, allowing ships to ‘see’ each other in all conditions.

With marine traffic from a large range of industries growing, known threats or pressures for cetaceans from shipping include ship-strikes – in which vessels accidentally hit whales – and noise pollution from poorly designed or poorly maintained vessels, which can mask out whale sounds used for communication and navigation.

Dr Conor Ryan, Hebridean Whale and Dolphin Trust Science Officer, said: “This innovative approach provides us with an opportunity to enhance our long-term research, which is providing unprecedented insights into the distribution and range of cetaceans in Scotland’s seas, as well as the challenges they face – including the unintentional consequences of human activities.

“The Hebrides may seem like a wilderness, but human impacts on the marine environment are significant – and likely to increase with expansions in marine industries, such as aquaculture and renewable installations. Strengthening scientific understanding is crucial if we are to help industries ensure that their impacts on Scotland’s remarkable whales, dolphins and porpoise populations are minimal.”

The new AIS transponder on Silurian will also allow closer public engagement with the trust’s research expeditions. By using the research vessel’s unique Maritime Mobile Service Identity (MMSI) number 232004280, people will be able to follow Silurian’s progress around Scotland’s west coast in real-time via www.hwdt.org.

Equipping Silurian with AIS technology has been made possible by a grant of £94,000 from the UK Government’s Coastal Communities Fund. This grant has also funded a major refurbishment of the yacht, including an environmentally friendly and long-lasting copper coating for the hull that will ensure the vessel remains seaworthy for the next decade, alongside other activities.

Hebridean Whale and Dolphin Trust – based in Tobermory on the Isle of Mull – is recruiting paying volunteers for its surveys. Between May and October, there will be 12 separate expeditions, each lasting between one and two weeks. This includes two ‘Teen Teams’ reserved for 16-17 year olds.

These volunteers will work and sleep on Silurian, receiving specialist training and working with scientists – conducting visual surveys, acoustic monitoring, and cetacean identification through dorsal fin photography. They will also be able to develop sailing and navigation skills as they visit some of Britain’s most remote and wild corners.

Silurian has been the platform for Hebridean Whale and Dolphin Trust’s unique research programme since 2002, welcoming aboard over 60 volunteers annually, surveying tens of thousands of nautical miles and logging every cetacean encounter made. This year, the yacht will welcome her 800th volunteer aboard. The yacht is also used as a floating classroom for marine conservation education for schoolchildren and students.

Western Scotland’s seas are one of Europe’s most important habitats for cetaceans with 24 of the world’s estimated 92 cetacean species recorded in the region to date. Many of these are national and international conservation priority species.

As well as strengthening knowledge about cetaceans and contributing to recommendations to safeguard them, the trust’s surveys are important because cetaceans are apex predators at the top of the marine food web, and so can act as indicators of the marine environment’s overall health.

The 2016 surveys depart from Tobermory on the Isle of Mull, Kyle of Lochalsh or Ullapool. The new addition of Ullapool as a rendezvous point will allow the trust to carry out more surveys in the remoter corners of its study area. Areas covered depend on the weather but will range from Mull of Kintyre in the south, Cape Wrath in the north and St Kilda in the west.

Participation costs cover boat expenses, accommodation, training, food and insurance, and support the charity’s research. For details, email [email protected], call 01688 302620 or visit www.hwdt.org.

Published in Marine Wildlife
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#MarineWildlife - The Irish Examiner reports on efforts to save an injured porpoise calf that was found beached on the shores of Lough Foyle yesterday (25 February).

Local people managed to help the young marine mammal, which has a wound on its tail fin, back into deeper water - but strong wind and wave action forced it into the stream of the Bredagh river.

It currently appears to be struggling in the mix of saltwater and freshwater, the latter of which can cause kidney and skin serious problems if cetaceans are exposed to it for extended periods.

The Irish Examiner has more on the story HERE.

Published in Marine Wildlife

Howth Coast Guard picked up a baby Porpoise stranded in shallow water off Portmarnock beach, Dublin yesterday and brought it one kilomretre back out to sea to safety.

Howth Coastguard was requested to assist the Irish Whale and Dolphin Group (IWDG) yesterday afternoon at Portmarnock beach in North Dublin as the youtube video above depicts.

A Coast Guard team from Howth station travelled by boat and jeep to the location and meet with the IWDG representative.

The decision was made to bring the baby mammal who was beached back to the sea in the hope it would swim away.

The boat team lead by coxswain Jaimie Blandford carefully placed the mammal on board and brought it a kilometre out into the open water.

Porpoises are very similar to dolphins but have shorter beaks and are seen in the Irish Sea with the same swimming patterns as dolphins.

The porpoise now named "Fungie Beag" was placed in the water, after some initial hesitation it successfully returned to the water and swam back into the Irish Sea, hopefully returning to its family.

Published in Marine Wildlife

#MARINE WILDLIFE - The body of a porpoise washed up on a beach near Dundalk recently is believed to be one of two 'dolphins' rescued from the area just days before.

The Dundalk Democrat reports that the porpoise carcass was discovered by Blackrock Tidy Towns supervisor Pat Rafferty while on a litter patrol of the beach on Tuesday 3 June.

“It must have beached on Monday night sometime, as we would have seen it the day before," he said. "Unfortunately it seems that gulls had got to it.”

Rafferty added: "“Maybe if it had beached during the day we would have been able to rescue it.”

It's thought that the porpoise is one of the two 'dolphins' that were rescued from the shallows by local people and the DunDalk Sub Aqua Team during the Blackrock Raft Race on 25 June.

Harbour porpoises - one of the most common forms of marine wildlife in Ireland - are very similar in apperance to dolphins but have a more triangular dorsal fin and lack the dolphin's beak-like snout.

The Dundalk Democrat has more on the story HERE.

Published in Marine Wildlife

For all you need on the Marine Environment - covering the latest news and updates on marine science and wildlife, weather and climate, power from the sea and Ireland's coastal regions and communities - the place to be is Afloat.ie.

Coastal Notes

The Coastal Notes category covers a broad range of stories, events and developments that have an impact on Ireland's coastal regions and communities, whose lives and livelihoods are directly linked with the sea and Ireland's coastal waters.

Topics covered in Coastal Notes can be as varied as the rare finding of sea-life creatures, an historic shipwreck with secrets to tell, or even a trawler's net caught hauling much more than just fish.

Other angles focusing the attention of Coastal Notes are Ireland's maritime museums, which are of national importance to maintaining access and knowledge of our nautical heritage, and those who harvest the sea using small boats based in harbours where infrastructure and safety pose an issue, plying their trade along the rugged wild western seaboard.

Coastal Notes tells the stories that are arguably as varied as the environment they come from, and which shape people's interaction with the natural world and our relationship with the sea.

Marine Wildlife

One of the greatest memories of any day spent boating around the Irish coast is an encounter with Marine Wildlife. It's a thrill for young and old to witness seabirds, seals, dolphins and whales right there in their own habitat. And as boaters fortunate enough to have experienced it will testify, even spotting a distant dorsal fin can be the highlight of any day afloat. Was that a porpoise? Was it a whale? No matter how brief the glimpse, it's a privilege to share the seas with Irish marine wildlife.

Thanks to our location in the North Atlantic, there appears to be no shortage of marine life to observe. From whales to dolphins, seals, sharks and other ocean animals, the Marine Wildlife category documents the most interesting accounts around our shores. And we're keen to receive your observations, your photos, links and video clips, too!

Also valuable is the unique perspective of all those who go afloat, from coastal sailing to sea angling to inshore kayaking to offshore yacht racing, as what they encounter can be of great importance to organisations such as the Irish Whale and Dolphin Group (IWDG). Thanks to their work we now know we share the seas with dozens of species who also call Ireland home. But as impressive as the list is, the experts believe there are still gaps in our knowledge. Next time you are out on the ocean waves, keep a sharp look out!

Weather

As an island in the North Atlantic, Ireland's fate is decided by Weather more so than many other European countries. When storm-force winds race across the Irish Sea, ferry and shipping services are cut off, disrupting our economy. When swollen waves crash on our shores, communities are flooded and fishermen brace for impact - both to their vessels and to their livelihoods.

Keeping abreast of the weather, therefore, is as important to leisure cruisers and fishing crews alike - for whom a small craft warning can mean the difference between life and death - as it is to the communities lining the coast, where timely weather alerts can help protect homes and lives.

Weather affects us all, and Afloat.ie will keep you informed on the hows and the whys.

Marine Science

Perhaps it's the work of the Irish research vessels RV Celtic Explorer and RV Celtic Voyager out in the Atlantic Ocean that best highlights the essential nature of Marine Science for the future growth of Ireland's emerging 'blue economy'.

From marine research to development and sustainable management, Ireland is developing a strong and well-deserved reputation as an emerging centre of excellence. Whether it's Wavebob ocean energy technology to aquaculture to weather buoys and oil exploration, the Marine Science category documents the work of Irish marine scientists and researchers and how they have secured prominent roles in many European and international marine science bodies.

Power From The Sea

The message from the experts is clear: offshore wind and wave energy is the future. And as Ireland looks towards the potential of the renewable energy sector, generating Power From The Sea will become a greater priority in the State's 'blue growth' strategy.

Developments and activities in existing and planned projects in the pipeline from the wind and wave renewables sector, and those of the energy exploration industry, point to the future of energy requirements for the whole world, not just in Ireland. And that's not to mention the supplementary industries that sea power projects can support in coastal communities.

Irish ports are already in a good position to capitalise on investments in offshore renewable energy services. And Power From The Sea can even be good for marine wildlife if done properly.

Aside from the green sector, our coastal waters also hold a wealth of oil and gas resources that numerous prospectors are hoping to exploit, even if people in coastal and island areas are as yet unsure of the potential benefits or pitfalls for their communities.

Changing Ocean Climate

Our ocean and climate are inextricably linked - the ocean plays a crucial role in the global climate system in a number of ways. These include absorbing excess heat from the atmosphere and absorbing 30 per cent of the carbon dioxide added to the atmosphere by human activity. But our marine ecosystems are coming under increasing pressure due to climate change.

The Marine Institute, with its national and international partners, works to observe and understand how our ocean is changing and analyses, models and projects the impacts of our changing oceans. Advice and forecasting projections of our changing oceans and climate are essential to create effective policies and management decisions to safeguard our ocean.

Dr Paul Connolly, CEO of the Marine Institute, said, “Our ocean is fundamental to life on earth and affects so many facets of our everyday activities. One of the greatest challenges we face as a society is that of our changing climate. The strong international collaborations that the Marine Institute has built up over decades facilitates a shared focusing on our changing ocean climate and developing new and enhanced ways of monitoring it and tracking changes over time.

“Our knowledge and services help us to observe these patterns of change and identify the steps to safeguard our marine ecosystems for future generations.”

The Marine Institute’s annual ocean climate research survey, which has been running since 2004, facilitates long term monitoring of the deep water environment to the west of Ireland. This repeat survey, which takes place on board RV Celtic Explorer, enables scientists to establish baseline oceanic conditions in Irish waters that can be used as a benchmark for future changes.

Scientists collect data on temperature, salinity, water currents, oxygen and carbon dioxide in the Atlantic Ocean. This high quality oceanographic data contributes to the Atlantic Ocean Observing System. Physical oceanographic data from the survey is submitted to the International Council for the Exploration of the Seas (ICES) and, in addition, the survey contributes to national research such as the VOCAB ocean acidification and biogeochemistry project, the ‘Clean Atlantic’ project on marine litter and the A4 marine climate change project.

Dr Caroline Cusack, who co-ordinates scientific activities on board the RV Celtic Explorer for the annual survey, said, “The generation of long-term series to monitor ocean climate is vital to allow us understand the likely impact of future changes in ocean climate on ecosystems and other marine resources.”

Other activities during the survey in 2019 included the deployment of oceanographic gliders, two Argo floats (Ireland’s contribution to EuroArgo) and four surface drifters (Interreg Atlantic Area Clean Atlantic project). The new Argo floats have the capacity to measure dissolved ocean and biogeochemical parameters from the ocean surface down to a depth of 2,000 metres continuously for up to four years, providing important information as to the health of our oceans.

During the 2019 survey, the RV Celtic Explorer retrieved a string of oceanographic sensors from the deep ocean at an adjacent subsurface moored station and deployed a replacement M6 weather buoy, as part of the Irish Marine Data Buoy Observation Network (IMDBON).

Funded by the Department of Agriculture, Food and the Marine, the IMDBON is managed by the Marine Institute in collaboration with Met Éireann and is designed to improve weather forecasts and safety at sea around Ireland. The data buoys have instruments which collect weather and ocean data including wind speed and direction, pressure, air and sea surface temperature and wave statistics. This data provides vital information for weather forecasts, shipping bulletins, gale and swell warnings as well as data for general public information and research.

“It is only in the last 20 years, meteorologists and climatologists have really began to understood the pivotal role the ocean plays in determining our climate and weather,” said Evelyn Cusack, Head of Forecasting at Met Éireann. “The real-time information provided by the Irish data buoy network is particularly important for our mariners and rescue services. The M6 data buoy in the Atlantic provides vital information on swell waves generated by Atlantic storms. Even though the weather and winds may be calm around our shores, there could be some very high swells coming in from Atlantic storms.”