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Displaying items by tag: Whales

#MarineWildlife - Skerries RNLI joined a number of groups in assisting a beached whale back out to sea at Gormanston in Co Meath earlier today (Thursday 20 June).

The volunteer lifeboat crew launched their inshore lifeboat shortly after 10am following reports from the Irish Whale and Dolphin Group (IWDG) that a 25ft pilot whale had beached in the area.

The lifeboat helmed by Joe May, and with crew members Emma Wilson, AJ Hughes and Laura Boylan onboard, made its way to the scene where May got into the sea and helped manoeuvre the whale back into deeper water.



Skerries RNLI then shadowed the whale guiding it out to sea, preventing it from turning back to shore by positioning the boat in its way. The lifeboat did this for about 25 minutes until the mammal was well clear of the shore.

Other agencies on scene included Skerries coastguard, the Defence Forces based at Gormanston, the IWDG, Boyne Fishermen’s Rescue and Irish Coast Guard helicopter Rescue 116.

Meanwhile, RTÉ News reports that a second whale was found dead on the beach near Mornington, north of Bettystown.

Despite initial fears that the whale was the same one rescued in the morning, it was later determined to be a different creature.

Published in Marine Wildlife

#MarineWildlife - A gray whale has been sighted many thousands of miles from its usual Pacific swimming grounds in the South Atlantic.

As Pádraig Whooley writes on the Irish Whale and Dolphin Group (IWDG) website, the whale was spotted in the last week in Walvis Bay, Namibia - only the second ever confirmed sighting of the marine species in the Atlantic Ocean, and the first south of the equator, since records began.

Previously a solitary gray whale was tracked in the Mediterranean in May 2010 from the coast of Israel to Barcelona in north-eastern Spain.

That was the first time a gray whale had been seen anywhere east of the Pacific Ocean following the presumed extinction of the Atlantic gray whale in the 17th century.

Whooley calls the latest sighting "a fascinating discovery" and says it "points strongly towards a dramatic shift in distribution facilitated by climate change.

"This is a timely reminder that we should never assume to know what species occur in our local waters, especially when this species seems to have literally come back from the dead."

Published in Marine Wildlife

#MarineWildlife - Seven dolphins and two beaked whales have stranded on beaches in the northwest in events described as "unusual" by the Irish Whale and Dolphin Group (IWDG).

On the Mullet Peninsula, a group of seven common dolphins - comprising five adults and two juveniles - live stranded at Tarmon Beach on Sunday 12 May.

Though initial attempts to refloat them were successful, one of the juveniles was later found dead and the other was euthanised due to poor health.

Meanwhile in Donegal, the fresh carcass of a female True's or Sowerby's beaked whale was found on Sunday evening on Five Fingers Stand at Inishowen - some days after a reported live stranding of a Sowerby's beaked whale on the Welsh coast.

The Inishowen stranding was followed yesterday 14 May by the discovery of a dead beaked whale calf at Trawbreaga Bay, in what is believed to be a connected stranding.

Samples of the adult female were taken in order to confirm the species, either of which would mark a rare cetacean record for Ireland - the first since 2009.

Published in Marine Wildlife

#DolphinExhibition - Balbriggan Maritime Museum has opened a new public display in Balbriggan Tourist Office on Quay Street near Balbriggan Harbour.

On show is a Whale and Dolphin Exhibition, bones, models and general information to celebrate the biodiversity of sea mammals off the coast. This follows the previous popular 'Cannon Balls Exhibition'.

Appropriately, 'Water & Biodiversity' is the theme of the 2013 International Day for Biological Diversity which falls on Wednesday, 22nd May.

Balbriggan Maritime Museum volunteers have assembled bones from many sea animals, such as a vertebra from a Fin Whale, the second largest whale in the world growing to 88ft in length. No wonder this bone is too heavy for one person to lift!

The Humpback Whale model, in real life, is about half the length of a Fin Whale and weighs only 40 tonnes! Even so, Humpback Whales, which are seen in the Irish Sea, would be too big to fit into Balbriggan Courthouse!

Smaller skulls from Common Dolphin, Pilot Whale and Grey Seal, as well as a Minke Whale jawbone can also be examined during May when this Whale and Dolphin Exhibition will be on display from Tuesday to Sunday when the Balbriggan Tourist Office is open.

 

Published in Marine Wildlife

#marinewildlife – A team of Irish scientists has just published the first information on the diet of fin and humpback whales in Ireland for one hundred years.

Until now, the only information on the diet of large baleen whales such as fin, humpback and minke whales in Irish waters, was gathered in 1913 by a Mr Burfield in Belmullet, Co Mayo where two whaling stations were operated by a Norwegian enterprise at the time. These whaling stations caught mostly fin whales as they migrated along the shelf edge close to Co. Mayo. Two new studies published in Marine Ecology Progress Series and Marine Mammal Science used stable isotopes and mixed modelling to reveal the diet of fin and humpback whales in Ireland.

Following regular sightings of fin, humpback and minke whales close to shore over the last 10-15 years there has been a resurgence of interest in whales in Irish waters. From June to February between Slea Head, Co. Kerry and Hook Head, Co. Wexford, fin and humpback whales appear to follow the seasonal movements of sprat and herring as they congregate inshore to spawn. The Irish Whale and Dolphin Group (IWDG), Galway-Mayo Institute of Technology and the Marine Institute collaborated on a project to determine what these whales were feeding on – essential information if we are to adopt a more sustainable 'ecosystem approach' to managing our fisheries. This ecosystem approach recognises that there are predators, other than humans in the marine ecosystem, which are entitled to marine resources and that these are an integral link in a complex food web which needs to be kept intact for the health of our oceans and for the benefit of our coastal communities.

Studying the diet of large whales is challenging. They cover vast distances and dive for up to 15 minutes at a time, and despite their huge size (fin whales up to 21m) they are difficult to follow and observe in the rough seas around Ireland. When they die and strand, it is difficult to obtain stomach samples before the carcase heats up with decay and quickly rots. At any rate, most of the stomach samples from dead whales are empty as these individuals tend to be sick. An alternative approach to investigating their diet was needed and this study used stable isotope analysis. The field of stable isotope analysis is rapidly becoming an essential tool for all scientists to trace food-webs and to follow ecosystem nutrient cycling in marine systems. In a novel way, this enables researchers infer information on their origins and dietary influences.

Skin samples were collected from fin and humpback whales using biopsy darts fired from a cross-bow. For the past decade, the IWDG Large Whale survey team has been conducting this field work during autumn and winter when the whales are close inshore in large numbers. They used local whale-watching boats or the IWDG rigid-hulled inflatable boat Muc Mhara to get close enough to the whales to dart them and photograph unique markings to help identify individual whales. This work was licensed by the National Parks and Wildlife Service. Chemical tracers, in this case stable carbon and nitrogen isotopes, in the skin of the whales were analysed. These same chemical signatures were measured in samples from sprat, herring and various krill species of different age classes, collected during annual fisheries surveys from the Marine Institute's R.V. Celtic Explorer. By matching the best fitting stable isotope signatures, the researchers were able to calculate what proportion of each prey species the whales were consuming.

The results showed that fin whales in Irish waters have a diet comprising 50% krill and 50% young sprat and herring. Throughout most of their range in European waters, fin whales feed almost exclusively on krill, so the Irish whales are unusual in that they rely heavily on small fish. Humpback whales seem to prefer sprat and herring when feeding in Irish waters and their diet comprised less than 30% krill. The research team also examined the long term diet of whales by analysing stable isotope values of baleen plates, which are flat sheets of fingernail-like tissue in the mouths of some large whales, used to filter food from the seawater. By using baleen plates stored in museums in Ireland and the UK the study examined changes in diet over the last 100 years. The main finding was that the long term diets of minke, fin and humpback whales are quite different from each other. This result was somewhat unexpected as these species are often seen feeding in close proximity to each other.

These results which have recently been published in the international science journals: Marine Mammal Science and Marine Ecology Progress Series, arise from a three year PhD project at the Galway-Mayo Institute of Technology (GMIT) and funded by the Irish Research Council.

Dr Conor Ryan said," We now have clear evidence that sprat and herring are important species supporting whales in Irish waters, and we must manage our fisheries with this in mind. We are very worried that sprat is being fished with an open quota, despite a huge gap in our knowledge about the life history of this important species in the Celtic Sea".

Dr Simon Berrow, lecturer in Marine Science at Galway-Mayo Institute of Technology (GMIT), Executive Officer of the IWDG, and member of the Celtic Sea Herring Management Advisory Committee added, "This data will be incorporated into the new Environmental Management Plan commissioned by the Celtic Sea Herring Management Advisory Committee which is essential for the proper management of these fisheries and ensuring this fishery is compliant with Marine stewardship Council requirements. Whale-watching is growing in Ireland and has the potential to expand much more if we manage these fish stocks for both fishers and whales and dolphins, which will bring further benefits to coastal communities".

Dr Brendan McHugh a chemist at the Marine Environment and Food Safety Services in the Marine Institute said, "Collaborative studies like this one between biologists and chemists are key to developing a greater understanding of ecosystem linkages and their impacts."

Published in Marine Wildlife
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#MarineWildlife - An upcoming research cruise by the Irish Whale and Dolphin Group (IWDG) is set to follow the path of a famous whaling voyage embarked on by an Irish Times journalist more than 100 years ago.

The paper reports on the pending mission by the marine wildlife charity's Celtic Mist research vessel that will retrace the movements of Crawford Hartnell from the site of what was then a Norwegian whaling station in the Inishkea Islands off the Mullet Peninsula in Mayo to a point 160km west where Hartnell report the harpooning of two whales.

Hartnell's accounts of his whaling adventure are remembered today for their blood-soaked vividness - but the IWDG's advances are altogether more friendly.

Rather than harpoon their quarry, the researchers on board the Celtic Mist will be on the lookout for baleen and beaked whales to count - and will also be teaching IWDG members how to identify species, how to carry out sea-bound surveys and how to use hydrophones to identify cetaceans by the sounds they make beneath the waves.

The Irish Times has much more on the story HERE.

Published in Marine Wildlife

#CoastalNotes - A new Irish short film shot on location on the south-west coast will have its premiere in Chicago this weekend, as the Southern Star reports.

The Blow-Ins is a 15-minute adventure comedy that was shot in Courtmacsherry, Kilbrittain and other picturesque coastal spots in West Cork.

It fictionalises story of the notorious Kilbrittain whale that washed ashore in 2009, as a family of 'blow-ins' from the capital attempt to rescue the stranded cetacean.

Written and directed by CJ Scuffins for Story Factory, The Blow-Ins will premiere at the 14th Chicago Irish Film Festival from Friday 1 March after its recent acclaim at the recent Corona Cork Film Festival.

The Southern Star has more on the story HERE.

Published in Coastal Notes

#MarineWildlife - If you've ever wanted to get closer to Ireland's marine wildlife, a new series of weekend excursions in West Cork may be just the ticket.

The Southern Star reports on the 'Discover Wildlife Weekends' being run from Rosscarbery by local company Ireland's Wildlife starting this April, where those taking part will be led by expert guides to explore the coastal region and have the best opportunities to spot the many species of whales and dolphins that visit our shores.

Weather permitting, the weekends will also involve some offshore whale watching in the company of 'whale watch supremo' Colin Barnes and the Irish Whale and Dolphin Group's (IWDG) sightings co-ordinator Pádraig Whooley.

And birdwatching will also be a feature, as West Cork is a hotspot for our feathered friends - from merlins and peregrine falcons to coastal waders and more exotic fowl that skirt our coasts on their spring migrations.

The Southern Star has much more on the story HERE.

Meanwhile, marine sector stakeholders have expressed their concerns over the designation of six new offshore marine areas by the National Parks and Wildlife Service.

As previously reported on Afloat.ie, the six sites at Blackwater Bank in Wexford, the West Connacht coast, Hempton's Turbot Bank in Donegal, the Porcupine Bank Canyon off Kerry, the South-East Rockall Bank, and the stretch from Rockabill to Dalkey Island off Dublin have been proposed for designation as Special Areas of Conservation (SACs) to protect marine habitats and species listed on the 1992 EU Habitats Directive.

But at a recent meeting at the Irish Farm Centre in Dublin, a coalition of fish farmers, fishermen and marine energy stakeholders have hit out at what they characterise as "the appalling handling of inshore designations since the 1990s by the State", which they claim "has resulted in hundreds of job losses and a flight of serious investment" from Ireland's coastal areas.

“Our experience of the Irish Government’s application of the EU Habitats Directive has been a saga of mismanagement, foot dragging and buck-passing which has left over 500 fish farming licences in limbo for over 10 years and a backlog of red tape and bureaucracy which could see producers waiting until 2020 and beyond for simple renewals which are vital to underpin their businesses," said IFA aquaculture executive Richie Flynn.

"These new offshore SACs will have the same effect of preventing any fishing, marine energy or aquaculture being carried out in these areas if left in the hands of the same agencies to manage."

Published in Marine Wildlife

#MarineWildlife - Sperm whales and a killer whale were among the finds on the last big effort of this year's Cetaceans on the Frontier survey led jointly by the Galway-Mayo Institute of Technology (GMIT) and the Irish Whale and Dolphin Group (IWDG).

As previously reported on Afloat.ie, marine scientists from GMIT's Marine and Freshwater Research Centre are on board the RV Celtic Explorer to carry out the fourth dedicated survey of cetaceans on the continental shelf edge.

The ship was surveying a zig-zag pattern in the Atlantic yesterday 2 February, some 55 nautical miles west-by-northwest of Achill Island (visible on this map HERE) when the team encountered at least two sperm whales, though an elusive third may also have been present - as indicated by the hydrophone being towed 200m behind the vessel.

"The blows continued and as we got closer, more and more body of the surfacing whale could be seen until we were treated to some reasonable views of the steep nose, long flat back and stumpy dorsal fin on initial surfacing followed by a thick tail stock with ‘knuckles’ seen when flaking," writes Niall Keogh on the Cetaceans on the Frontier blog.

Soon after that, the researchers were treated to their first sight of a killer whale in Irish waters - followed by a number of pilot whales surfacing close to the ship.

Photos of the team's finds can be seen HERE.

Published in Marine Wildlife

#whales – Unique video of whales "bubble feeding" off Baltimore was captured by sailor Youen Jacob Jnr just minutes after setting out from his home port at the weekjend. The RNLI lifeboat man and sailing champion Jacob, managed to photograph the two humpbacks as they hunted last Saturday morning.  A group of astounded sailors and fishermen watched in awe as a pod of humpback whales conducted a so-called 'bubble-netting' hunt off the west Cork coast for a herring shoal.The Irish Independent has more here.

Published in Marine Wildlife
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Dublin Bay

Dublin Bay on the east coast of Ireland stretches over seven kilometres, from Howth Head on its northern tip to Dalkey Island in the south. It's a place most Dubliners simply take for granted, and one of the capital's least visited places. But there's more going on out there than you'd imagine.

The biggest boating centre is at Dun Laoghaire Harbour on the Bay's south shore that is home to over 1,500 pleasure craft, four waterfront yacht clubs and Ireland's largest marina.

The bay is rather shallow with many sandbanks and rocky outcrops, and was notorious in the past for shipwrecks, especially when the wind was from the east. Until modern times, many ships and their passengers were lost along the treacherous coastline from Howth to Dun Laoghaire, less than a kilometre from shore.

The Bay is a C-shaped inlet of the Irish Sea and is about 10 kilometres wide along its north-south base, and 7 km in length to its apex at the centre of the city of Dublin; stretching from Howth Head in the north to Dalkey Point in the south. North Bull Island is situated in the northwest part of the bay, where one of two major inshore sandbanks lie, and features a 5 km long sandy beach, Dollymount Strand, fronting an internationally recognised wildfowl reserve. Many of the rivers of Dublin reach the Irish Sea at Dublin Bay: the River Liffey, with the River Dodder flow received less than 1 km inland, River Tolka, and various smaller rivers and streams.

Dublin Bay FAQs

There are approximately ten beaches and bathing spots around Dublin Bay: Dollymount Strand; Forty Foot Bathing Place; Half Moon bathing spot; Merrion Strand; Bull Wall; Sandycove Beach; Sandymount Strand; Seapoint; Shelley Banks; Sutton, Burrow Beach

There are slipways on the north side of Dublin Bay at Clontarf, Sutton and on the southside at Dun Laoghaire Harbour, and in Dalkey at Coliemore and Bulloch Harbours.

Dublin Bay is administered by a number of Government Departments, three local authorities and several statutory agencies. Dublin Port Company is in charge of navigation on the Bay.

Dublin Bay is approximately 70 sq kilometres or 7,000 hectares. The Bay is about 10 kilometres wide along its north-south base, and seven km in length east-west to its peak at the centre of the city of Dublin; stretching from Howth Head in the north to Dalkey Point in the south.

Dun Laoghaire Harbour on the southside of the Bay has an East and West Pier, each one kilometre long; this is one of the largest human-made harbours in the world. There also piers or walls at the entrance to the River Liffey at Dublin city known as the Great North and South Walls. Other harbours on the Bay include Bulloch Harbour and Coliemore Harbours both at Dalkey.

There are two marinas on Dublin Bay. Ireland's largest marina with over 800 berths is on the southern shore at Dun Laoghaire Harbour. The other is at Poolbeg Yacht and Boat Club on the River Liffey close to Dublin City.

Car and passenger Ferries operate from Dublin Port to the UK, Isle of Man and France. A passenger ferry operates from Dun Laoghaire Harbour to Howth as well as providing tourist voyages around the bay.

Dublin Bay has two Islands. Bull Island at Clontarf and Dalkey Island on the southern shore of the Bay.

The River Liffey flows through Dublin city and into the Bay. Its tributaries include the River Dodder, the River Poddle and the River Camac.

Dollymount, Burrow and Seapoint beaches

Approximately 1,500 boats from small dinghies to motorboats to ocean-going yachts. The vast majority, over 1,000, are moored at Dun Laoghaire Harbour which is Ireland's boating capital.

In 1981, UNESCO recognised the importance of Dublin Bay by designating North Bull Island as a Biosphere because of its rare and internationally important habitats and species of wildlife. To support sustainable development, UNESCO’s concept of a Biosphere has evolved to include not just areas of ecological value but also the areas around them and the communities that live and work within these areas. There have since been additional international and national designations, covering much of Dublin Bay, to ensure the protection of its water quality and biodiversity. To fulfil these broader management aims for the ecosystem, the Biosphere was expanded in 2015. The Biosphere now covers Dublin Bay, reflecting its significant environmental, economic, cultural and tourism importance, and extends to over 300km² to include the bay, the shore and nearby residential areas.

On the Southside at Dun Laoghaire, there is the National Yacht Club, Royal St. George Yacht Club, Royal Irish Yacht Club and Dun Laoghaire Motor Yacht Club as well as Dublin Bay Sailing Club. In the city centre, there is Poolbeg Yacht and Boat Club. On the Northside of Dublin, there is Clontarf Yacht and Boat Club and Sutton Dinghy Club. While not on Dublin Bay, Howth Yacht Club is the major north Dublin Sailing centre.

© Afloat 2020

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