Displaying items by tag: IWDG
Voyages out as far as the edge of the Continental Shelf on the Atlantic Ocean has produced rare sightings for the Irish Whale and Dolphin Group and this August there is a chance to see the join the crew and see the whales again writes Patrick Lyne
Back in 2012 when the Celtic Mist became available to the Irish Whale and Dolphin Group we were looking at ways the boat could be used to support the work the Group does and demonstrate to people in Ireland the wealth of life that exists in Irish waters. So for three years from 2012 to 2014 we took the Celtic Mist to the shelf edge in early September. Indeed we were blessed when first arriving on the shelf edge only to be greeted by two blue whales. It took several minutes in close proximity (200m) to the whales before we believed our eyes. We had expected large whales but not those to be waiting for us. They stayed around and passed either side of the boat moving from port to starboard for what seemed like an age, before moving further away. We could manage a top speed of maybe 8 knots while blue whales could travel at up to 25 knots approximately and there was no way we could keep pace with these animals if they decided to leave us behind.
Shortly afterwards the Irish Air Corps Casa (C253) appeared and called on the radio and managed to get some excellent shots of both the Celtic Mist and the blue whales.
Two blue whales in the Porcupine Seabight 60 miles off the Irish coast (Photo coutesy of Irish Air Corps)
In 2013 had some remarkable sightings of beaked whales again in the Porcupine Seabight and while unable to confirm that the animals that passed close to the vessel in 2013, were True’s beaked whales, it seems highly probable that they were. Beaked whales are particularly difficult to study being adverse to noise and spending large periods of time underwater. The Cuvier’s beaked whale holds the record for the longest recorded dive of any cetacean of 2 hours 17 minutes while attaining a depth of 2,992m. These animals are rarely seen close to shore and when they are, they often end up stranding and dying. The deep ocean off the shelf edge is their natural habitat.
Each year has produced it’s own spectcular moments and the humpback whales off Dingle have become more and more reliable and are a feature of our trips every year. Last year we were treated to one beautiful day on the shelf edge with calm weather. It is this calm weather that always produces the best results. While whales numbers wer not spectacular they were considerable and most if not all animals were engaged in feeding. We simply allowed the boat to drift while fin whales fed in close proimity to the boat and we could see the huge jaws opening to envelope the krill underwater.
Last year we changed vessels to Jessy of Adrigole a 37 ft–yacht, the Celtic Mist being unavailable and this year we have decided to continue using Jessy but for a longer trip. We propose starting in Castletownbere and sailing to Camaret in Brittany along the shelf edge. The shelf edge between here and Brittany is some of the most dramatic in the world with drop offs from 200m down to nearly 4000m. The EEZ of the UK is slowly squeezed such that French and Irish waters will eventually meet as boundaries extend.
It is more important than ever to record the variety and abundance of Ireland’s offshore environment. While oil exploration will suffer from the current over supply, exploration rights has been granted to both Russia and France by the International Seabed Authority (ISA – not the Irish Sailing Association but a UN body based in Jamaica) in the mid-Atlantic Ridge in the North Atlantic. The marine environment is constantly under greater and greater pressure. Protection for cetaceans is critical to mainting the entire marine habitat. Reduction in large whale numbers in the Southern Ocean due to whaling did not result in an increase in their favourite prey, krill, but rather reduced krill abundance. Whale faeces enriches the ocean with iron, producing plankton blooms which start the food chain and absorb excess carbon from the atmosphere. The South West in particualr sees large numbers of tuna arrive in August and September, follwoed by French and Spanish and Irish fishing vessel as well as whales. It is important for the whales that they are able to build blubber reserves at this time, especially for the females as without sufficient reserves to sustain them during pregnancy of 11 or 12 months, the whale will abort. Recovery rates are slow with these large whales and even with protection it will be manay many decades before fin and blue whale numbers reach pre-whaling levels.
Fin whale feeding Porcupine Seabight (Photo – Patrick Lyne IWDG)
In August we will embark again to try and find calm weather on the shelf edge and hope to add significantly to the picture of cetaceans in Irish waters in a time when they are at their most abundant. It is a unique opportunity for people to become involved with our marine mega fauna in a way not available elsewhere and to add to knowledge of the area. The charge to crew of €1310 allows the work to take place and is an enriching experience and an education. If interested contact Patrick Lyne by email ([email protected]).
#MarineWildlife - A research paper produced in a joint project by the Irish Whale and Dolphin Group (IWDG) and the Galway-Mayo Institute of Technology (GMIT) was cited by an expert panel that has struck down Japan's plans to resume whaling in the Southern Ocean.
As the Guardian reports, the International Whaling Committee (IWC) panel said Japan's revised programme did to have enough detail to determine whether it needed to hunt whales in order to, as per its reasons, measure population sizes ahead of any return to commercial whaling, or gain "a better understanding of the Antarctic marine ecosystem".
"The current proposal does not demonstrate the need for lethal sampling to achieve those objectives," said the IWC experts' report.
The IWDG-GMIT paper lead authored by Dr Conor Ryan and published in Marine Ecology Progress Series in 2013, which details the collection of relevant data from live biopsy tissue samples, was cited by the experts as evidence contrary to Japan's assertions.
Japan was forced to revise its whaling programme in the face of controversy last year after the International Court of Justice ruled it was not whaling for scientific research purposes.
The IWDG says that the IWC's report "endorses the internationally significant work being carried out in Ireland and shows how this information can be used to inform important management decisions such as that offered by the IWC Expert Panel."
Other recent research work conducted by the IWDG includes a visual and acoustic survey of cetaceans during the annual Marine Institute bus whiting survey, and a review of the National Parks and Wildlife Service's National Cetacean Protection Strategy.
#MarineWildlife - The Irish Whale and Dolphin Group (IWDG) hosts its annual general meeting at the Best Western Plus Academy Plaza Hotel at the top of O'Connell Street in Dublin tomorrow 8 November 2014.
The event, which kicks off at 2pm, is open to all IWDG members (with voting on proposals for members of at least six months' standing) and will provide an opportunity for people to learn more about the marine wildlife charity's work, and how to get more involved.
Held in conjunction with the Coastal & Marine Research Centre at University College Cork, the evening will see a talk by Barry McGovern on the CMRC's work in Broadhaven Bay as part of the Corrib Gas Project in Co Mayo over the past decade.
In addition, the IWDG's Dr Simon Berrow will look at whale and dolphin strandings around Ireland, with a focus on Belmullet.
The IWDG has more details on the evening HERE.
#MarineWildlife - A humpback whale new to Irish waters has been confirmed by the Irish Whale and Dolphin Group (IWDG).
Photos of the humpback's fluke and dorsal fin captured by Nick Massett off Clogher and Sybil Heads in West Kerry at the weekend were examined by the IWDG's catalogue experts who have determined that the whale is a new arrival - and one with a fluke colouring that's rarely seen in Irish waters.
Details have since been sent to Allied Whale in the US state of Maine - which curates the North Atlantic humpback whale catalogue - to see if a match can be made among its database of more than 7,000 fluke images.
Meanwhile, Wildlife Extra reports that sailors in the Irish Sea are urged to keep a lookout for a large group of minke whales.
The group includes three juveniles and a calf previously spotted some 19 miles east of Ireland's Eye near Howth.
"Although sightings of Minke whale are to be expected in these waters, such a large group is a rare occurrence," said Danielle Gibas, sightings officer with the UK's Sea Watch Foundation, which is organising Britain's annual National Whale and Dolphin Watch this week till 3 August.
And in other cetacean news, scientists claim that dolphins call each other by name, calling back to the sound of their signature whistle but ignoring whistles that aren't theirs.
Using underwater speakers, they played synthesised versions of dolphin whistles they'd identified with particular dolphins to determine their reactions.
They were surprised to find that individuals called back after hearing their own 'name' but ignored others, whether they were for dolphins in the same group or strangers.
Last night a woman was hospitalised after being struck by the dolphin's nose in the kidney area, leaving her "badly bruised and shocked by the incident".
It's since emerged that this was the fourth such attack by the bottlenose dolphin in the past month.
The cetacean responsible - a 14-year-old female - has made Doolin her home after many years in the Fanore area, and has apparently been responsible for a number of attacks on swimmers over the last two years.
But visitors continue to swim with the dolphin despite warnings by the Irish Whale and Dolphin Group (IWDG), which discourages any interference with the protected species.
The Irish Times has more on the story HERE.
As reported yesterday on Afloat.ie, Heritage Minister Jimmy Deenihan was on board the IWDG's research vessel Celtic Mist in Dun Laoghaire on Tuesday 16 July to lance the group's new atlas of marine mammal distribution in Irish waters - an event at which he also confirmed his extension of the protections already afforded to whales and dolphins over a number of coastal sites around Ireland.
The Dublin Bay SAC, running from Rockabill off Skerries to Dalkey Island, is one of the six new sites proposed by the minister's department late last year.
The list also features Blackwater Bank in Co Wexford, the West Connacht Coast, Hempton's Turbot Bank in Donegal, the Porcupine Bank Canyon off Kerry and the South-East Rockall Bank.
According to The Irish Times, the Dublin Bay conservation zone alone covers a sea area of 27,000 hectares and will extend protections under the 1992 EU Habitats Directive to the area's population of harbour porpoises.
#MarineWildlife - Minister for Arts, Heritage and the Gaeltacht Jimmy Deenihan was on board the Irish Whale and Dolphin Group's (IWDG) research vessel Celtic Mist yesterday 16 July to launch a new atlas of marine mammals in Ireland's coastal waters.
The Atlas of the Distribution and Relative Abundance of Marine Mammals in Irish Offshore Waters marks the culmination of six years of surveys involving more than 1,000 says at sea, and provides up to date information for 19 species of cetaceans: whales, dolphins and porpoises.
Ireland is home to a remarkable diversity of whales and dolphins, and the new atlas shows how common and widespread some of these species are - from the harbour porpoise and common dolphin to the much larger fin whale.
Not all Irish cetaceans are so common, however, and the atlas also highlights the importance of Irish waters for some of the Atlantic’s rarer deepwater species such as the sperm whale and several beaked whales.
These are species about which very little is known, the IWDG says more work will be required in the coming years to allow a better understanding of the conservation requirements of these animals.
Every six years, Ireland is obliged to report on the conservation status of all of its marine mammals as part of its commitments under the European Union’s Habitats Directive. The data from this atlas has already proved invaluable in underpinning Ireland’s 2013 report to the European Commission.
Speaking at the launch yesterday in Dun Laoghaire, Minister Deenihan commended the work undertaken to produce the atlas.
“This fine atlas is the culmination of many years of work by a large number of people and I’m happy to note that it was produced under a project funded over several years by my department in collaboration with the Marine Institute," he said.
"As minister, I have also extended the protection afforded to whales and dolphins through the designation of additional marine special areas of conservation. I would like to thank the Irish Whale and Dolphin Group for this excellent publication.”
The atlas is available as a PDF to download HERE.
Along the way they will be recording any sightings of whales or dolphins along the way using forms supplied by the IWDG.
And the IWDG is currently offering places on board to all members for both week-long legs of the cruise.
The vessel has eight berths that will comfortably sleep a team of one skipper and seven crew - indeed, anyone taking up this offer will be expected to prepare meals and perform other sailing duties!
For more details on how to join The Gathering Cruise on board Celtic Mist, see the IWDG website HERE.
In the meantime, Celtic Mist is offering all IWDG members a chance to sail on day trips from Dun Laoghaire this week - email [email protected] for details.
The studies, part funded by the US Navy, found that beaked whales where particularly sensitive to sonar - and that even blue whales, the largest animals on earth, were distracted from feeding by the subsurface noise.
It's long been feared that the use of sonar is to blame for unusual behaviour among whales, who navigate and communicate with each other over long distances using sound.
As previously reported on Afloat.ie, the Irish Whale and Dolphin Group (IWDG) identified sonar activity by Royal Navy submarines as a possible cause of a the mass stranding of pilot whales in Donegal in November 2010, in which as many as 35 whales died.
Now for the first time, sonar has been proven to affect behaviour of cetaceans to a detrimental degree, confirming for many a connection between the use of sonar technology and recordings of whale and dolphin strandings identified since the 1950s. The Guardian has much more on the story HERE.
In more positive whale-related news, the IWDG reports that its next Cape Clear summer whalewatching course over the weekend of 26-28 July is "filling up nicely".
Places are still available but as it coincides with the tourism high season in West Cork, anyone interested is advised to book sooner than later to ensure they have someone to stay nearby.
The most recent weekend course over the June bank holiday witnessed numerous harbour porpoises and common dolphins, but its hoped the elusive whales will make an appearance next time round!