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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: orca

The Cruising Association (CA) has launched an updated online portal and web pages for orca information and reporting, resulting from a year-long effort to gather and analyse data on orca interactions.

The updates to the portal and web pages reflect the research and analysis that the CA has undertaken since June 2022 and include the sharing of additional safety and deterrent advice, updated reporting forms and links to other resources, including current orca locations.

In June 2022, the CA launched its portal – available in English, French, Portuguese and Spanish – in collaboration with Grupo Trabajo Orca Atlantica (GTOA), to share information and gather reports from skippers on orca interactions and uneventful passages. The initiative was in response to the increasing trend of behaviour demonstrated since 2020 within a population of orcas that feeds on and follows the migration of tuna exiting the Mediterranean from the Strait of Gibraltar and heading West and North around the Iberian Peninsula.

In 2022 two yachts were sunk due to interactions with orcas, and another yacht met the same fate in early May 2023. While fortunately, all crew members were rescued, this situation is of great concern to cruising sailors located within or transiting through the affected area, and there is only limited evidence-led advice available to help.

Research and Analysis

The CA orca project team has analysed over 300 interactions and uneventful passage reports received in 2022, and some patterns have emerged, which are shared on the portal. Of the 132 interactions, 99 yachts experienced damage.

The comparative data is published, with the CA portal the only database that is publicly accessible for use by sailors, scientists, and others interested in the data.

By gathering as much information as possible, the CA and GTOA will be better equipped to identify factors that may help reduce the risk of an interaction, along with those actions taken by a skipper, which are effective or not.

Online Reporting

Skippers are urged to submit orca interaction, and uneventful passage reports through interaction hotspots. The CA reporting portal is considered the central platform to monitor in detail interactions and uneventful passages, as it gathers comprehensive information in a structured way.

Data gathered includes sea state/wind speed, boat speed, day/night, cloud cover, distance off the land, sea depth, hull/antifoul colour, type of rudder, use of autopilot and depth sounder etc. Additional data fields added for 2023 include details on the number of orcas (whether adult or juvenile) in contact with the boat, whether trailing a fishing lure and reversing technique. These new fields are intended to test scientific theory-based advice and to look for best practices when reversing.

Stay Safe

Although various deterrent measures are discussed, there are currently no reliable legal methods. The CA portal provides a ‘Safety Protocol’ and a list of potential, yet unproven, deterrent measures. Examples include staying close to shore, staying in shallow water, using sand as a screen, reversing and making a noise onboard.

The CA will continue to share progress and information with the cruising community. You can find out more at www.theca.org.uk/orcas.

Published in Cruising
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Portuguese-based cruising enthusiast John Duggan of Cascais and originally Malahide has been monitoring the continuing situation with orca attacks on the rudders of cruising boats off the Iberian coast, and has posted this update today:

"Anyone with a boat in the Atlantic waters of Spain and Portugal will be aware of a recent spate of damage done by orcas (killer whales) to the rudder and steering gear of yachts. More than two dozen boats have needed external assistance, and the Spanish authorities have ordered the exclusion of boats of less than 15M from an area between Tarifa and Cape Trafalgar.

The official advice when dealing with an aggressive approach by orcas is to take down the sails, stop the engine and echo sounder, and not touch the wheel in the hope that eventually the orcas will simply mvd on. But the effectiveness of these measures is uncertain, and a Portuguese sailor has recently reported success with another technique - to go astern under power slowly at 2-3 knots. The idea is that the orca will want to stay clear of the propeller, and will not easily be able to bash against the rudder.”

Mr Duggan has asked us to point out that he accepts no responsibility whatsoever for any boat which has to motor astern all the way across the Bay of Biscay with an increasingly irritated pod of orcas following at the bow.

Seasoned sailor. Orca observer John Duggan on mainsheet trim aboard Otto Glaser’s 47ft McGruer sloop Tritsch-Tratsch II in the i975 Howth-Holyhead Race - in which she took line honours and the Class 1 win - with Olympic sailor Barry O’Neill beyond on the wheel. Photo: W M NixonSeasoned sailor. Orca observer John Duggan on mainsheet trim aboard Otto Glaser’s 47ft McGruer sloop Tritsch-Tratsch II in the i975 Howth-Holyhead Race - in which she took line honours and the Class 1 win - with Olympic sailor Barry O’Neill beyond on the wheel. Photo: W M Nixon

Published in Marine Wildlife
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Late last summer and into the Autumn, there were several reports of orcas – "killer whales" if you want to be more sensational – getting decidedly friendly to the point of aggression with fishing boats and sailing cruisers off the coasts of Spain and Portugal.

They seem to be back in business, but now it's off the coast of the Algarve, and Galicia-based sailor Jose Manuel Baldor Gutierrez has posted some vids showing a pair taking more interest than was comfortable in his 45-footer off Portugal's southern shore.

He reports:

"These videos are of what happened yesterday when sailing gently along on the south coast of Portugal, 12 miles from Cape Santa Maria in Faro. I don't know much about the subject of orcas and whales generally, but when the stern of the boat was suddenly turned 90 degrees, I thought at first it was a complete autopilot failure.

But immediately when I saw the orcas, I disconnected the autopilot, and then turned off all the other electronics and electrics by disconnecting the batteries. However, seeing that the orcas were still very much there, it seemed best to stop the boat moving altogether.

So we took all the sails down and left the boat to roll gently in the light winds, while the two of us got into the little bathtub to minimise our presence and maximise the number of protective layers between us and the orcas, should they decided to step up the attention in a more confrontational way.

We'd been "hiding" in the bathtub for a very long 10 to 15 minutes until – with the boat "dead" - they finally lost interest and left. But we waited another even longer 15 minutes before we re-connected the batteries and started sailing with very little wind, at first not using the engine and minimizing the changes to the rudder direction.

My feeling is that their interest is primarily in the rudder, as its movement suggests it's the only living part of the boat – they go to this mobile hull zone, because they can do nothing on the keel or bow. But having seen the sheer power evident in the way they spun our boat through 90 degrees with very little effort, it could be that accidents will happen if you try to control the rudder by hanging on to the wheel – you could end up with damaged arm and shoulder muscles, or even with a broken tiller arm on the rudder stock.

Now we know a little bit more about orcas, and luckily the experience ultimately went well"

Published in Marine Wildlife
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Stories of whales attacking boats at sea and sometimes sinking them go back a long way in maritime history, and as often as not it has happened in such a sudden and frightening way that identifying the precise species has not been part of the narrative.

But since mid-September, an increasing number of reports of whale attacks off the coast of Spain and Portugal have identified the largest dolphin, the orca or "killer whale", as being responsible for a continuing spate of attacks. And with verified incidents of rudders being torn off and hulls and keels - usually of fibreglass sailing boats – being seriously damaged, the maritime authorities in northwest Spain have become so concerned that a quite extensive exclusion zone for smaller craft has been imposed off the rugged coastline between El Ferrol and Punta de Estacia de Bares.

The exclusion zone for smaller craft off the rugged coastline between El Ferrol and Punta de Estacia de BaresThe exclusion zone for smaller craft off the rugged coastline between El Ferrol and Punta de Estacia de Bares

Several theories have been put forward to explain the unusually high incidence of these events, and in response to sensationalist local headlines of "TERROR KILLER WHALE ATTACKS", noted ocean voyager and marine scientist Vera Quinlan of Galway has made the reasonable point that it is humans invading their space who have described them as "killer" whales. They are in fact the largest species of dolphins, and it takes some of the heat out of the situation to give them their proper name of orca.

Nevertheless, the danger can ultimately be very real, and theories abound, such as the behaviour being a hostile response by whales to the sudden and marked increase in engine and propellor noise after some limitations of the pandemic lockdown was lifted in Spain, with coastal leisure traffic increasing to end a period of peace which was akin to the welcome silence which until recently prevailed onshore around noisy airports.

But as to whether or not it's an inbuilt whale dislike of fibreglass is difficult to assess, as the vast majority of boats have long since been constructed in GRP.

It's also said that modern hull shapes with the keel separate from the rudder may seem to whales like some sort of threatening sea creature, while another notion is that the whales approach the boat with very friendly or indeed amorous intentions, and then take a whack at it on being found they were mistaken.

As for keeping the engine running, the fact is a number of the attacks have taken place on boats which were motor-sailing.

And finally, there are those who reckon that the colour of your underwater paint is a significant factor. Old salts will tell you that having a white or red under-body is just asking for trouble – dark blue or black anti-fouling is your only man if you want to stay onside with the ocean cousins.

Published in Marine Wildlife
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A pod of orcas or killer whales caused great excitement in Strangford Lough, County Down yesterday. As reported by BBC News NI, local skipper Richard Connor from Causeway Boats said that it may be unusual but not unheard of. It was the third time he had seen them in 22 years of skippering.

Biologist Suzanne Beck from the Agri-Food and Biosciences Institute said the group that was in the lough are part of the West Coast community and may be seen a few times a year. "Usually they might travel on round the coast and the guys in the Hebrides might get a sighting and later they may travel right round Ireland, so you do hear of them every so often. They're just doing this circuit around us the whole time and it's only when they come close to the coast that we're getting these lucky sightings” They could have come in to chase a seal or been interested in different noises, but the concern was that they may keep travelling up through the Lough.

According to the Irish Whale and Dolphin Group NI they were initially reported yesterday afternoon several miles off Ardglass on the County Down coast before they pushed north into Strangford Narrows. “We can confirm from the presence of the bull known as "John Coe" that they are from the Scottish West Coast Community Group, which today has a core group of just seven or eight remaining individuals. They are recorded most years on a few occasions in Irish waters and this is the eighth time this apex predator has been recorded along the Co. Down coast since 2001. This is however not the first time killer whales have entered Strangford Narrows as a pod of four were photographed on Regatta Day off Portaferry on Aug. 18th 1962”. It was an exciting sight for children.

The McCarthy family got wind it was happening from the Irish Whale and Dolphin Group NI's Facebook page and decided to take a quick detour. “When we arrived, they were on the turn back and there were three boats near them”, Mr McCarthy said. I was concerned that it could turn into an awkward situation if they didn't find their way out through the Narrows but they seemed to make their way back fairly comfortably". He said the three boats out with them "did a good job of holding back". "It was a stunning night and what a treat," he added.

Published in Marine Wildlife

#MarineWildlife - Whale watchers on Slea Head were treated to a special sight earlier this week with the surprise appearance of the killer whale known as John Coe, as the Irish Examiner reports.

Landscape photographer Richard Creagh was among the lucky few on Monday (27 June) to spot the orca known by the distinctive notch on his dorsal fin – though in more recent times he's also lost a chunk of his tail fluke, most likely to a shark bite.

Creagh, a keen marine wildlife watcher for the last 10 years, said: "Up to now killer whales had always eluded me but today I got to add them to my list, and what a sight it was! I’m still buzzing!"

John Coe's unique orca pod are regular visitors to Irish waters, though he himself was last spotted close to our shores almost three years ago at the Inishkeas in Co Mayo, according to the Irish Whale and Dolphin Group – which is asking the public to watch the seas for any more sightings of the senior cetacean.

Published in Marine Wildlife

#DopeyDick - A killer whale who gained notoriety after swimming up the River Foyle in the late 1970s has been rediscovered enjoying his retirement off the west coast of Scotland, as the Derry Journal reports.

It's more than 38 years since the orca astounded the people of Derry by swimming up the estuary and hanging around the city for a number of days, earning the name 'Dopey Dick' for shrugging off attempts to lure him back to the safety of open water.

His whereabouts thereafter were unknown -- till cetacean experts with the Hebridean Whale and Dolphin Trust compared old photographs of his Derry visit with more recent images of the unique orca community that makes its home off the western Scottish coast, and identified a positive match.

Comet, as the orca is properly known, is estimated to be at least 58 years old, double the usual life expectancy for the species.

But that's not so surprising for the orca pod referred to as the 'West Coast Community', which has been a regular visitor to Irish waters over the years, and has interested marine wildlife specialists for decades due to its "evolutionary significant" qualities.

Sadly that group's numbers have been dwindling, with fellow orca Lulu becoming the latest victim after its believed she was entangled in fishing gear early this year, as previously reported on Afloat.ie.

Published in Marine Wildlife

#MarineWildlife - The killer whale found beached on a Scottish island last weekend likely died after getting entangled in fishing gear for days, say experts.

As previously reported on Afloat.ie, the orca known as Lulu to researchers, who have been tracking her unique pod since the early 1990s, was discovered on the island of Tiree in the Inner Hebrides last Sunday 3 January.

Lulu's "evolutionary significant" group has been under threat for years due to the absence of calves among its number since scientists began monitoring them around the Scottish and north Irish coasts.

But according to The Press and Journal, Lulu's death was not down to natural causes – with a post-mortem report from experts at the Scottish Marine Animal Strandings Scheme claiming "convincing evidence that she had become chronically entangled" in fishing gear, with deep wounds consistent with a rope wrapping around her tail.

“There were no ropes or gear left on the carcass," said the scientists in a statement. "We’re assuming all this from the lesions we found on her body, so we don’t know if this was due to active fishing gear, abandoned or ‘ghost’ gear, or other marine debris."

The Press and Journal has much more on the story HERE.

Published in Marine Wildlife

#MarineWildlife - One of the last remaining members of a unique pod of killer whales has been found dead on a Scottish island.

As STV News reports, the orca known as Lulu to marine researchers was found beached on the island of Tiree in the Inner Hebrides on Scotland's west coast on Sunday 3 January.

Like John Doe, who is believed to have survived an altercation with a shark a year ago, Lulu was one of a familiar family of orcas that's regularly seen off Scotland and even as far west as the Donegal coast.

It's a pod that's piqued the interest of marine science due to its genetic distinctiveness from other orcas in the North Atlantic, as previously reported on Afloat.ie.

But the "evolutionary significant" group's numbers have been dwindling in recent years due to the absence of calves since scientists started tracking them more than two decades ago.

"It is particularly sad to know that another one of these killer whales, unique to the British and Irish Isles, has died," said the Hebridean Whale and Dolphin Trust. "There may be as few as eight individuals remaining in this population."

STV News has more on the story HERE.

Published in Marine Wildlife

#MarineWildlife - A seal pup was lunch for a killer whale that's been attracting onlookers to Wales' Irish Sea coast in recent days.

As the Carmarthen Journal reports, the orca was first sighted of Mwnt, north of Cardigan, over the summer, but has since been spotted further down the coast near Fishguard - believed to be attracted by a boom in the local seal population.

It marks a rare appearance for the species in the Irish Sea, as they're more commonly spotted in Scottish waters and off Ireland's North Coast.

And it comes not long after another rare sight in the form of a pod of Risso's dolphins sighted near Anglesey in north Wales earlier this month - with experts telling BBC News that it may be one of the largest such pods ever recorded in Welsh waters.

In other marine mammal news, The Irish Times has video of a seal who appears to have taken a liking to Dublin city centre, swimming many kilometres up the Liffey from the usual Dublin Bay haunts.

Published in Marine Wildlife
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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.”