Menu

Ireland's sailing, boating & maritime magazine

Displaying items by tag: bottlenose dolphins

#DALKEY ISLAND PROSPECT - The Irish Whale and Dolphin Group (IWDG) has joined the chorus of opposition to the proposed oil and gas exploration off Dalkey Island in Co Dublin.

As previously reported on Afloat.ie, Providence Resources has applied for a foreshore licence to search for oil or gas about 6km out to sea on the Kish Bank Basin.

But the prospect has provoked a split in the local community over the potential risks and benefits, with many calling for a public enquiry into the licence before it is granted.

This evening an urgent meeting in Dun Laoghaire will address the public's concerns, which have been echoed by the IWDG.

"The Kish Bank and adjacent waters are important for cetaceans," said the group in a statement. "In addition, sightings of bottlenose dolphins have increased dramatically in the area following the presence of a group of three individuals since August 2010."

The IWDG is concerned about the potential effects on dolphins and porpoises that "could due to noise generated from the drilling process", noting that "there is little published data on the intensity and effects of sound generated by drilling".

Protest group Protect Our Coast has launched a online petition against the Dalkey Island Prospect citing concerns over the proximity of the drilling area to the mainland as well as the Special Protection Area of Dalkey Island, which is a haven for marine wildlife.

Published in Coastal Notes

#'DALKEY ISLAND' PROSPECT – In response to a proposed exploratory search for oil and gas operation by Providence Resources off Dalkey Island, Co. Dublin, as previously reported on Afloat.ie, a public meeting is to be held by Dalkey Community Council next week, writes Jehan Ashmore.

The meeting to be held next Tuesday in Dalkey Town Hall (at 7.30 p.m.) is to discuss the Providence venture, named 'Dalkey Island' prospect, in reference to the island off the south-side suburb. The island and the coast along Dalkey is geographically the nearest landfall to where the proposed 'jack-up' drill rig would operate in block (33/21) in the Kish Bank Basin.

An online petition (see www.protectourcoast.net)  by campaigners, entitled 'Protect Dublin Bay, Dalkey Island and Killiney Bay from Large Oil Drill 2012', has already gained large support, including signatures from overseas. They are in protest over Providence Resources application for a foreshore license which has been lodged with the Department of Environment.

Providence Resources propose to drill a single borehole for the exploratory well which is likely to be in an area only 6kms offshore of the Dalkey coastline. The island is designated a Special Protection Area (SPA) and notably where there have been sightings of bottlenose dolphins in neighbouring Killiney Bay.

Should the oil be commercially viable, the benefits of becoming self-sufficient and security of supply would be of significant economic benefit to Ireland. To date 100% of the country's oil and 95% of its gas is currently imported, and yet most of Ireland's natural resources are unexplored, according to Providence Resources.

Exploration is an expensive exercise and has no guarantee of discovery while the timeframe from discovery to production can typically take five to seven years.

"Yet," say Providence Resources, "the implications of discovering and utilising such a natural resource, and potentially becoming self-sufficient in energy terms, would be of significant economic benefit for Ireland Inc. in terms of taxation, employment, security of supply and skills development."

To read more information about Dalkey Island Prospect from Providence Resources, with maps, montages (including views from White Rock Beach) newsletters and video presentation visit www.providenceresources.com/dalkeyisland.aspx

Published in Coastal Notes

#DALKEY ISLAND PROSPECT - An online petition organised by Protect Our Coast in protest over plans by Providence Resources to start exploratory drilling for oil and gas off Dalkey Island, in south Co. Dublin, has reached over 2,000 signatures to date, including support from overseas.

Providence Resources are seeking permission from the Department of Environment for a foreshore licence to carry out site investigation and drill testing in waters depths of 20-30m in the Kish Bank Basin, at the Dalkey Island 'Prospect'.

They propose drilling one exploratory well some 6kms offshore, though the exact location chosen for the well site is subject to results of seismic surveys. This particularly area lies closer to the coastline, as it is on the more westerly fringes of the exploratory block (33-21) zone.

The campaigners object to the proximity of the well site off Dalkey Island which is designated a Special Protection Area (SPA). The island is home to a resident herd of goats, is rich in birdlife, seals and cetaceans, notably bottlenose dolphins in neighbouring Killiney Bay, which have drawn recent media attention and aided the objectives of the campaign, see www.protectourcoast.net

In addition they oppose the drilling location given its closeness to a large urban population and the risk of an oil-spill and consequent effects to humans and the environment throughout Dublin Bay.

If granted, exploratory work is due to start this year, with Providence claiming the entire process would take up to six months, between survey and drilling operations. During part of that timeframe, up to two seismic vessels will be employed, prior to deploying a 'jack-up' rig to the well site.

Should the oil be commercially viable, the benefits of becoming self-sufficient and security of supply would be of significant economic benefit to Ireland. To date 100% of the country's oil and 95% of its gas is currently imported, and yet most of Ireland's natural resources are unexplored, according to Providence Resources.

Exploration is an expensive exercise and has no guarantee of discovery while the timeframe from discovery to production can typically take five to seven years.

"Yet," say Providence Resources, "the implications of discovering and utilising such a natural resource, and potentially becoming self-sufficient in energy terms, would be of significant economic benefit for Ireland Inc. in terms of taxation, employment, security of supply and skills development."

To read more information about Dalkey Island Prospect from Providence Resources, with maps, montages (including views from White Rock Beach) newsletters and video presentation visit www.providenceresources.com/dalkeyisland.aspx

As previously reported on Afloat.ie, the application for the foreshore license is currently on view in Dalkey and Dun Laoghaire Garda stations. The application contains maps, plans, and drawings which can be inspected, noting the public consultation process ends on Thursday 2nd February 2012.

In addition for information from the Department of Environment's website, click HERE. Those wishing to make an objection or representation of the sought license should make submissions to the Foreshore Unit of the department on close of business (also) on Thursday 2nd February 2012.

.

Published in Coastal Notes

#MARINE WILDLIFE - They were thought to have disappeared from the east coast in October after delighting wildlife enthusiasts in Dublin and Wicklow.

But concerns that one of the group had died were swept side when the pod of three bottlenose dolphins was once again spotted off Killiney recently.

The Wicklow People reports that the two adults and one juvenile reappeared almost two weeks ago, and have been seen daily "putting on great displays of leaping, breaching, and tail slapping".

Fears were that tragedy had befallen the group when two bottlenoses were seen off Skerries and Balbriggan in late October, and a juvenile was found dead in Portmarnock shortly after.

As previously reported on Afloat.ie, some 200 sightings of the dolphins between Dalkey Island and Wicklow town in recent months were validated by the Irish Whale and Dolphin Group (IWDG).

According to the IWDG, evidence suggests that the pod is now resident off the east coast.

The Wicklow People has more on the story HERE.

Published in Marine Wildlife
The Irish Whale and Dolphin Group (IWDG) has said that evidence suggests a pod of three bottlenose dolphins is living on the east coast of Ireland.
According to RTÉ News, the organisation as validated close to 200 sightings of the dolphins - one of whom was spotted off Co Down in October 2010 - along the Dublin and Wicklow coastline in the last year.
The IWDG's Páraig Whooley says that further analysis of theor movements show that they rarely travel north beyond Dalkey Island or south of Wicklow town, ind
icating a core range of 21 miles (33km).
"Remarkably, they seem to split their time evenly between their Dublin and Wicklow hotspots, thus making them extremely easy to locate, observe and photograph," he adds.
"In fact... the best way to find them other than checking this site, is probably to jump on a DART train in Dun Laoghaire bound for Greystones (or visa versa), making sure to look out the correct window."
While well known for being "boisterous, interactive and gregarious", bottlenose dolphins are also "indescriminate killers of porpoises and other dolphin species, with well-documented cases of infanticide".
Neither are they to be taken lightly by swimmers, with "a case load in Ireland of attacks on swimmers leading to serious injury, and at least one overseas case of [a bottlenose] killing a swimmer.
"It's nice to be able to boast of an apex predator lurking so close to the capital," adds Whooley.
RTÉ News has images of the dolphins in action off the south Dublin coastline HERE.

The Irish Whale and Dolphin Group (IWDG) has said that evidence suggests a pod of three bottlenose dolphins is living on the east coast of Ireland.

According to RTÉ News, the organisation as validated close to 200 sightings of the dolphins - one of whom was spotted off Co Down in October 2010 - along the Dublin and Wicklow coastline in the last year.

The IWDG's Pádraig Whooley says that further analysis of theor movements show that they rarely travel north beyond Dalkey Island or south of Wicklow town, indicating a core range of 21 miles (33km).

"Remarkably, they seem to split their time evenly between their Dublin and Wicklow hotspots, thus making them extremely easy to locate, observe and photograph," he adds. 

"In fact... the best way to find them other than checking this site, is probably to jump on a DART train in Dun Laoghaire bound for Greystones (or visa versa), making sure to look out the correct window."

While well known for being "boisterous, interactive and gregarious", bottlenose dolphins are also "indescriminate killers of porpoises and other dolphin species, with well-documented cases of infanticide". 

Neither are they to be taken lightly by swimmers, with "a case load in Ireland of attacks on swimmers leading to serious injury, and at least one overseas case of [a bottlenose] killing a swimmer.

"It's nice to be able to boast of an apex predator lurking so close to the capital," says Whooley.

RTÉ News has images of the dolphins in action off the south Dublin coastline HERE.

Published in Marine Wildlife
The Irish Independent reports that some 100 bottlenose dolphins have made a new home off the Donegal coast in the past week.
The pod of bottlenoses - a rare treat in Irish waters compared to the near ubiquitous common dolphin - has been spoted by boaters and wildlife enthusiasts in the inner Donegal Bay, between Rossnowlagh Beach and Doorin Head.
Patrick Lane of the Irish Whale and Dolphin Group said the bottlenose often swims closer to the shore than its more common counterparts, making it much easier for people on shore to catch a glimpse.
The Irish Independent has more on the story, including photos, HERE.

The Irish Independent reports that some 100 bottlenose dolphins have made a new home off the Donegal coast in the past week.

The pod of bottlenoses - a rare treat in Irish waters compared to the near ubiquitous common dolphin - has been spoted by boaters and wildlife enthusiasts in the inner Donegal Bay, between Rossnowlagh Beach and Doorin Head.

Patrick Lane of the Irish Whale and Dolphin Group said the bottlenose often swims closer to the shore than its more common counterparts, making it much easier for people on shore to catch a glimpse.

The Irish Independent has more on the story, including photos, HERE.

Published in Marine Wildlife
The Irish Whale and Dolphin Group (IWDG) reports that a newborn bottlenose dolphin calf was washed up in Doolin, Co Clare last week (photos here).
Measuring 1.2m in length and weighing 21kg, the IWDG said it was "by far the smallest bottlenose dolphin recorded stranded in Ireland".
"From the bent dorsal fin and curled tail flukes we can confidently say this dolphin was only just born and live-stranded," said IWDG co-ordinator Simon Berrow, who added that the group could only speculate as to what happened.
"Maybe it was separated from its mother on birth, maybe she was unable to help it to the surface to take its first breath, maybe the mother was alone and did not have the support of a maternal group to assist at birth."

The Irish Whale and Dolphin Group (IWDG) reports that a newborn bottlenose dolphin calf was washed up in Doolin, Co Clare last week (photos here).

Measuring 1.2m in length and weighing 21kg, the IWDG said it was "by far the smallest bottlenose dolphin recorded stranded in Ireland".

"From the bent dorsal fin and curled tail flukes we can confidently say this dolphin was only just born and live-stranded," said IWDG co-ordinator Simon Berrow, who added that the group could only speculate as to what happened. 

"Maybe it was separated from its mother on birth, maybe she was unable to help it to the surface to take its first breath, maybe the mother was alone and did not have the support of a maternal group to assist at birth."

Published in Marine Wildlife
Page 2 of 2

Sharks in Irish waters

Irish waters are home to 71 species of shark, skates and rays, 58 of which have been studied in detail and listed on the Ireland Red List of Cartilaginous fish. Irish sharks range from small Sleeper sharks, Dogfish and Catsharks, to larger species like Frilled, Mackerel and Cow sharks, all the way to the second largest shark in the world, the Basking shark. 

Irish waters provide a refuge for an array of shark species. Tralee Bay, Co. Kerry provides a habitat for several rare and endangered sharks and their relatives, including the migratory tope shark, angel shark and undulate ray. This area is also the last European refuge for the extremely rare white skate. Through a European Maritime and Fisheries Fund (EMFF) project, Marine Institute scientists have been working with fishermen to assess the distribution, diversity, and monthly relative abundance of skates and rays in Tralee, Brandon and Dingle Bays.

“These areas off the southwest coast of Ireland are important internationally as they hold some of the last remaining refuges for angel shark and white skate,” said Dr Maurice Clarke of the Marine Institute. “This EMFF project has provided data confirming the critically endangered status of some species and provides up-to-date information for the development of fishery measures to eliminate by-catch.” 

Irish waters are also home to the Black Mouthed Catshark, Galeus melastomus, one of Ireland’s smallest shark species which can be found in the deep sea along the continental shelf. In 2018, Irish scientists discovered a very rare shark-nursery 200 nautical miles off the west coast by the Marine Institute’s ROV Holland 1 on a shelf sloping to 750 metres deep. 

There are two ways that sharks are born, either as live young or from egg casings. In the ‘case’ of Black Mouthed Catsharks, the nursery discovered in 2018, was notable by the abundance of egg casings or ‘mermaid’s purses’. Many sharks, rays and skate lay eggs, the cases of which often wash ashore. If you find an egg casing along the seashore, take a photo for Purse Search Ireland, a citizen science project focusing on monitoring the shark, ray and skate species around Ireland.

Another species also found by Irish scientists using the ROV Holland 1 in 2018 was a very rare type of dogfish, the Sail Fin Rough Shark, Oxynotus paradoxus. These sharks are named after their long fins which resemble the trailing sails of a boat, and live in the deep sea in waters up to 750m deep. Like all sharks, skates and rays, they have no bones. Their skeleton is composed of cartilage, much like what our noses and ears are made from! This material is much more flexible and lighter than bone which is perfect for these animals living without the weight of gravity.

Throughout history sharks have been portrayed as the monsters of the sea, a concept that science is continuously debunking. Basking sharks were named in 1765 as Cetorhinus maximus, roughly translated to the ‘big-nosed sea monster’. Basking sharks are filter feeders, often swimming with their mouths agape, they filter plankton from the water.

They are very slow moving and like to bask in the sun in shallow water and are often seen in Irish waters around Spring and early Summer. To help understand the migration of these animals to be better able to understand and conserve these species, the Irish Basking Shark Group have tagged and mapped their travels.

Remarkably, many sharks like the Angel Shark, Squatina squatina have the ability to sense electricity. They do this via small pores in their skin called the ‘Ampullae of Lorenzini’ which are able to detect the tiny electrical impulses of a fish breathing, moving or even its heartbeat from distances of over a kilometre! Angel sharks, often referred to as Monkfish have a distinctively angelic shape, with flattened, large fins appearing like the wings of an angel. They live on the seafloor in the coastal waters of Ireland and much like a cat are nocturnal, primarily active at night.

The intricate complexity of shark adaptations is particularly noticeable in the texture of their skin. Composed of miniscule, perfectly shaped overlapping scales, the skin of shark provides them with protection. Often shark scales have been compared to teeth due to their hard enamel structure. They are strong, but also due to their intricate shape, these scales reduce drag and allow water to glide past them so that the shark can swim more effortlessly and silently. This natural flawless design has been used as inspiration for new neoprene fabric designs to help swimmers glide through the water. Although all sharks have this feature, the Leafscale Gulper Shark, Centrophorus squamosus, found in Ireland are specifically named due to the ornate leaf-shape of their scales.