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Displaying items by tag: Subsea Cable

Ireland is pursuing a “gateway to Europe” strategy for subsea telecoms cables, Minister for Communications Eamon Ryan pledged as he marked installation of one such link on the west coast.

Speaking at the landing ceremony for “IRIS”, a subsea telecoms cable between Galway and Iceland, Mr Ryan described it as “part of the new industrial revolution – one that combines high quality, digital infrastructure with renewable technology, infrastructure and skills”.

As Afloat reported in September 2020, The new cable, landing in Galway, will provide direct high-capacity links to Iceland with onward connectivity to Northern Europe via Denmark, he said. The cable system will greatly increase capacity and diversity of internet connections to Ireland, he said.

Ireland is “poised to become a key international connectivity hub between North America and Europe”, he and his junior communications minister Ossian Smyth said.

"it is the first subsea cable connected to Ireland that is not linked to Britain or North America"

“The IRIS cable enhances Ireland’s digital connectivity internationally, providing the essential factors needed by businesses to be able to compete globally and attract investment. This direct, high-capacity route to Iceland and through to Northern Europe provides opportunities for all businesses to extend their market reach,” Ryan said.

Mr Smyth described it as a “landmark in the history of Irish communications”, as it is the first subsea cable connected to Ireland that is not linked to Britain or North America.

He noted that Ireland has been an intercontinental communications hub since 1858, when the first transatlantic cable linking London and New York was routed through Ireland.

“This is the start of a strategic move by Ireland to connect directly to Northern and Southern Europe,” Smyth said, declaring that Ireland is “now open for business to further subsea cables”.

The landing station diversity in Ireland is “particularly advantageous”, the ministers noted, because the cable routes come from multiple directions, minimising the risk of simultaneous failure.

The IRIS cable is owned and operated by Farice. a company fully owned by the Icelandic Government, which contracted SubCom, a global subsea fibre optic cable system supply company, to install the cable system.

Published in Galway Harbour

Further to previous installation works on the Havhingsten fibre optic telecommunication cable system in the Irish Sea, post-lay inspection and burial (PLIB) of the cable is planned to begin later this week.

Works outside Irish and Isle of Man territorial waters are will start on Friday 14 January and continue until next Thursday 20 January, subject to weather.

It is advised that extra care is taken when vessels are operating near this area and that no vessel should trawl within 500m.

Installation will be via industry-standard burial tools including water jetting with remote operated vehicle (ROV). The target cable burial depth is 1.5m below seabed level in the region.

There will be two locations where PLIB will be performed: at Final Splice (FS) location outside Irish territorial waters, and at Branching Unit (BU) location outside of Isle of Man territorial waters.

The operations will be conducted by the cable installation vessel CS Ile d’Aix (callsign FICI) which will be working on a 24-hour basis, and will display appropriate day shapes and lights during reduced visibility and night operations.

All vessels operating within this area are requested to keep their distance and pass at minimum speed to reduce vessel wash.

For more information, including coordinates and contact details, see Marine Notice No 01 of 2022 attached below.

Published in News Update

Further to last week’s Marine Notice advising of the latest works on the Havhingsten fibre optic telecommunication cable system this month, rock placement activities in the Irish Sea are also planned from this weekend.

There are four crossing locations in the Irish Sea where rock placement will be installed from this Saturday 11 December, but only one will be within the Irish EEZ, at the offshore extent.

Rock placement will be via industry standard, and activity at each site will last for up to 15 hours.

The operations will be conducted by the cable installation vessel Stornes (callsign PCKX), which will operate on a 24-hour basis and display appropriate day shapes and lights during reduced visibility and night operations.

All vessels operating within this area are requested to keep their distance and pass at minimum speed to reduce vessel wash.

Further details, including relevant coordinates and contact information, can be found in Marine Notice No 65 of 2021 which is available to download below.

Published in News Update

Installation of the Havhingsten fibre optic telecommunication cable system in the Irish Sea inside of the Irish 12-nautical-mile zone is planned for this month.

It follows works this past autumn in the Irish Sea outside of territorial waters, as previously reported on Afloat.ie.

Works are planned to start on Monday 13 December, subject to weather and full execution of the foreshore licence.

The latest operations on the cable route for the western Irish Sea region, which lands at Loughshinny, will be conducted by the cable installation vessel CS Île de Batz (callsign FOSU).

It will be working on a 24-hour basis and will display appropriate day shapes and lights during reduced visibility and night operations.

All other vessels operating within its work area are requested to keep their distance and pass at minimum speed to reduce vessel wash.

Details of the coordinates of the work area and contact information can be found in Marine Notice No 64 of 2021, which can be downloaded below.

Published in News Update

Installation of the Havhingsten fibre optic telecommunication cable system is planned from Monday 23 August until Thursday 23 September in the Irish Sea outside of the Irish 12-nautical-mile zone.

Works within 12 nautical miles of Ireland’s mainland are planned from December 2021 subject to weather and operational conditions.

There will also be associated rock placement operations post-cable installation at four locations within the western Irish Sea and these works are expected in between October and December, weather permitting.

The entire cable system will comprise marine elements that pass from Denmark to the UK (NE region), and from the UK (NW) to Ireland, with two segments installed into landfalls on the Isle of Man. The cable route for the western Irish Sea region lands at Loughshinny in north Co Dublin.

Installation will be via industry standard burial tools including water jetting and ploughing. Target cable burial depth is 1.5m below seabed level in the region.

It is anticipated that installation operations in UK/Irish waters will occupy up to a maximum 500m width (250m either side of cable). The cable itself will occupy only 40mm of the seabed. Expected speed of installation will be approximately 17km per day.

Works will be conducted by the cable installation vessel CS Recorder (callsign MATL3) which will operate 24 hours a day and will display appropriate day shapes and lights during reduced visibility and night operations.

All vessels operating within its vicinity are requested to keep their distance, and pass at minimum speed to reduce vessel wash.

Full details, including coordinates for the work areas and rock armour placements, are included in Marine Notice No 45 of 2021 which can be downloaded below.

Published in News Update

Mariners off the South-East Coast of Ireland are advised of subsea cable survey operations currently under way, subject to weather conditions.

The survey was scheduled to begin this past Thursday 26 November and continue for at least eight days and up to two weeks.

It follows a route south-west from the 2m contour at Ballyteige Bay before veering south to the 12-nautical-mile limit.

The DNV-classed wind farm service and survey support vessel Fastnet Pelican (Callsign 2FNX7) is conducting this survey using a multibeam echo sounder and sub bottom profiler as well as a towed array with a sidescan sonar and magnetometer.

The vessel will have active AIS and will display all relevant lights and shapes.

Due to restricted manoeuvrability, other vessels are asked to maintain a distance of at least one nautical mile from the Fastnet Pelican.

Full details of this survey, including all relevant coordinates, are included in Marine Notice No 54 of 2020, a PDF of which can be downloaded below.

Published in Marine Warning

Planned works on the Portrane Pre-Lay Shore End installation for the Rockabill Subsea Cable are being carried out from the coast of Portrane, Co Dublin.

Scheduled to start yesterday. Monday 1 July, they will continue to next Wednesday 10 July. During this first Pre-lay Shore End phase of the project, the cable will be installed and buried in the Irish Sea by the utility vessel Roxane Z (Callsign FIRJ).

The vessel will monitor VHF Channel 16 at all times. All vessels, particularly those engaged in fishing, are requested to give the Roxane Z a wide berth and keep a sharp lookout in the relevant areas.

Details and co-ordinates of the work area are included in Marine Notice No 20 of 2019, a PDF of which is available to read or download HERE.

Another recent Marine Notice includes an updated schedule of examinations for the Certificate of Competency for Deck Officers, Marine Engineer Officers, Skippers and Second Hands, commencing Monday 2 September this year.

Published in Coastal Notes

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.