Menu

Ireland's sailing, boating & maritime magazine

Displaying items by tag: Seabed

Mapping Ireland’s seabed, how scientists predict flooding and how to grow your own volcano are themes of an open day hosted by the Geological Survey of Ireland (GSI) and National Museum of Ireland this weekend.

The free “Down to Earth” open day event takes place on Saturday next, May 7th, at the National Museum of Ireland - Decorative Arts and History, Collins Barracks, Dublin.

GSI scientists will be on hand to “bring land and seabed mapping to life, to show the importance of groundwater, and reveal the secrets of Irish fossils,” the organisers state.

They will be joined by colleagues from DIAS (Dublin Institute for Advanced Studies), iCRAG (the Science Foundation Ireland research centre in applied sciences), Met Éireann, and Teagasc to answer questions on earthquakes, the metals we need for life, weather and flooding, and soil.

Members of the public are invited to “try and stump the geologist” by bringing a favourite rock or fossil to have it identified by a geology curator from the National Museum of Ireland.

Sustainable arts experts ReCreate will be running workshops for those families who would like to design some geology inspired art.

The open day takes its inspiration from “Down to Earth- Exploring Ireland’s Geology”, which is currently on exhibition.

Booking is not required, and members of the public can drop in to Collins Barracks, Dublin from 11 am on Saturday, May 7th.

Published in Marine Science

The annual INFOMAR Seminar is a celebration of the year’s work by Ireland’s national seabed mapping programme. INFOMAR is funded by the Department of Communications, Climate Action and Environment and is jointly managed and operated by Geological Survey Ireland and the Marine Institute.

Attendees at the seminar, which will be held in Dingle, Co Kerry, on 16 and 17 October, will be among the first to see details of more than 8,500 of seafloor mapped, over 20 shipwrecks surveyed, and new 3D visuals of the coastal landscapes developed during the 2019 survey season.

The event will focus on Irish seabed mapping activities related to marine science, biodiversity, heritage and tourism in coastal communities. The event will feature an exciting line-up of experts presenting on; shipwreck mapping and archaeology, ocean literacy, marine ecology, ocean energy and infrastructure, as well as submerged and coastal landscapes and the connection between marine tourism and Fáilte Ireland’s Wild Atlantic Way.

Koen Verbruggen, Director of Geological Survey Ireland stated; “The INFOMAR seabed mapping programme continues to create significant positive impact at national, European and international levels, however this year’s annual conference in Dingle, Co Kerry, reflects INFOMAR’s prioritisation of engagement with local maritime communities who remain key stakeholders in Ireland’s national seabed mapping programme.”

“Ireland is an exemplar internationally in demonstrating best practice in ocean governance, through mapping, observing, predicting and managing our marine territory and resources. Connecting society with the value and importance of our ocean wealth is critical if we are to address today’s challenges, including climate change and population growth” said Dr. Peter Heffernan, CEO, Marine Institute.

Minister Canney stated; “INFOMAR, Ireland’s internationally renowned seabed mapping programme is an impressive example of inter-agency cooperation within the Government of Ireland. By holding its annual seminar event in Dingle Co. Kerry, I’m delighted to see the programme engage with its stakeholders at a local level, conveying its role in supporting the development of industry, research, heritage and tourism within coastal maritime communities”.

The INFOMAR Seminar will take place in the Dingle Skellig Hotel on Wednesday 16 and Thursday 17 October 2019. The event will include a special commemoration of the achievements of the Irish Baselines Project, and a live cast to MAREANO, the Norwegian marine mapping programme. Norway has just announced a new coastal mapping programme similar to INFOMAR which will complement the offshore activities of MAREANO. The event will conclude with a behind the scenes visit to Dingle OceanWorld Aquarium and to one of Ireland’s State research vessels, the RV Keary.

The event is open to all members of the public and interested people should register through the INFOMAR website www.infomar.com

Published in Coastal Notes
Tagged under

#seabed – A British government decision to slash 75 per cent of a proposed network of marine conservation zones (MCZs) intended to save seabeds and estuaries in England from being damaged by commercial and recreational activities, has been criticised by professional fishery managers.

The Department for Environment, Food and Rural Affairs (Defra) is proposing to go ahead with only up to 31 of 127 zones recommended by its advisors. It says it would be too expensive to set up more.

Responding to the watered-down proposals, the Institute of Fisheries Management (IFM) said it was "extremely disappointed" no more zones would be designated in the near future. Instead it called for "a clear timetable" for more, especially close inshore and for early discussions on how to manage and enforce them.

One zone the institute wants brought forward is in the Thames estuary which it says is one of the best studied estuaries in the UK, containing a wealth of well documented features fully meeting the MCZ criteria.

The estuary had long been a showcase for sustainable development. Most of the development challenges cited for delaying it were already being dealt with in a fully sustainable manner.

Another is the Alde-Ore estuary near Felixstowe, Suffolk. This contains a recruiting population of smelt (Osmerus eperlanus) a recognised MCZ flagship species. New evidence suggests a spawning run by these into the freshwater reaches of the estuary.

The institute agreed with the fisheries minister Richard Benyon that enforcing remote offshore zones could be costly, particularly if fishermen from other countries fished there.

Inshore, however, the use of sound and accessible science in selecting zones would engender strong commitment to self-enforcement among local sea users. Policing costs, including intelligence gathering, could then be "very low indeed."

There were already very good examples of self-enforcement in shell fisheries. In estuaries on the Thames and in Devon trawling restrictions had been maintained in an inclusive and coherent manner, at low cost.

Because Defra had not said how the zones would be managed and enforced the marine industry had, in some cases, provided "its own worst case scenarios," of the costs.

"This is an understandable reaction," according to Steve Colclough, chairman of the institute's marine section, "but it tends to militate against further designation [of more zones] in the near future."

Because of the uncertainty over management, some anglers felt that if estuaries became conservation zones they would be excluded from fishing in them. This was a factor in a number of cases and reassurances about a balanced approach carried little weight.

The institute was also disappointed the proposals did not refer to the socio-economic benefits of conservation zones. Around the world there was evidence they brought significant long-term benefits to fisheries, tourism and recreation. There had been early benefits to fishermen in recent examples of marine protection in England such as in Lyme Bay and Port Erin Bay on the Isle of Man.

Mr. Colclough said the institute was concerned about the balance of evidence and inconsistencies in some zone decisions. The rationale that estuaries, mudflats and salt marshes were some of the most productive aquatic ecosystems, was built into the reasoning for selecting some zones but not others.

The importance of conservation species such as the smelt had only been used in some decisions. For example, the Medway estuary was put forward for designation now, but data presented on the presence of a self-supporting population of smelt was not in the proposal. The institute said it was frustrating to be unable to see clearly where and how high quality information which it had provided had been used in making decisions.

"Such action tends to reduce the commitment and engagement so vital for success of these projects... We were promised [the MCZ process] would be transparent and fair, based on good science... Unfortunately we and others have noted specific data errors" which damaged the credibility of the whole process.

"These may seem small issues, but not to users who already feel threatened by the whole process. Understandable fear of the unknown quickly becomes antagonism."

As a professional body promoting more sustainable fisheries management, the Institute of Fisheries Management has a wealth of relevant experience, Mr. Colclough added, and said he looked forward to positive future engagement with Defra and others.

Published in Marine Wildlife

#DIVING - Deep sea diver Sean McGahern is currently attempting the world record for cold water open sea diving in Malta.

The Times of Malta reports that McGahern - who was born in England but raised in Ireland before moving to Malta 17 years ago - entered the water at the Starfish Diving School before midnight last night, hoping to break the standing record of 11 hours and 46 minutes.

His previous attempt at the record was ended little more than an hour short of the record due to bad weather, but today's clear forecast has buoyed his confidence.

McGahern plans to pass the time by cleaning the seabed, assisted by a team of 16 safety divers, but he also intended to catch some sleep below the depths.

“I’ve slept underwater before," he said. "it’s not as difficult as you might think.”

McGahern, who previously held the warm water open sea dive record, is undertaking the challenge for Dar tal-Providenza, a home for the disabled on the Mediterranean island.

Published in Diving

After the publication of the MCIB investigation report into the sinking of Asgard II the dive team lead by Eoin McGarry have released further photos of the wreck, showing different aspects of the boat including new shots of the hole in the hull. 

asgardholediver

The "hole" in Asgard's Hull as it looked in July 2010 on the starboard bow, the long plank that was in the MCIB report pictures has fallen down and can no longer be seen. The view of the hole is harder to get now as the hull is listed to starboard and the seabed is silting up on the starboard bow and scouring on the port aft quarter and stern

pump

The salvage pump used. It is located midships on the starboard side

books

A selection of nautical reading material still remarkably intact. The photo of the bookshelf is taken in the absence of the roof/deck of the navigation room. This is directly forward of the helm, the door out of the navigation room was just to the left of the books as you look at them

Click this link for all Afloat's coverage of Asgard II's sinking, and the plans to raise, dive and replace her

Raise the Asgard - Afloat's 2008 online petition

Published in Asgard II

Dublin Bay 21s

An exciting new project to breathe life into six defunct 120-year-old Irish yachts that happen to be the oldest intact one-design keelboat class in the world has captured the imagination of sailors at Ireland's biggest sailing centre. The birthplace of the original Dublin Bay 21 class is getting ready to welcome home the six restored craft after 40 years thanks to an ambitious boat building project was completed on the Shannon Estuary that saved them from completely rotting away.

Dublin Bay 21 FAQs

The Dublin Bay 21 is a vintage one-design wooden yacht designed for sailing in Dublin Bay.

Seven were built between 1903 and 1906.

As of 2020, the yachts are 117 years old.

Alfred Mylne designed the seven yachts.

The total voting population in the Republic's inhabited islands is just over 2,600 people, according to the Department of Housing.

Dublin Bay Sailing Club (DBSC) commissioned the boat to encourage inexpensive one-design racing to recognise the success of the Water Wag one-design dinghy of 1887 and the Colleen keelboat class of 1897.

Estelle built by Hollwey, 1903; Garavogue built by Kelly, 1903; Innisfallen built by Hollwey, 1903.; Maureen built by Hollwey, 1903.; Oola built by Kelly, 1905; Naneen built by Clancy, 1905.

Overall length- 32'-6', Beam- 7'-6", Keel lead- 2 tons Sail area - 600sq.ft

The first race took place on 19 June 1903 in Dublin Bay.

They may be the oldest intact class of racing keelboat yacht in the world. Sailing together in a fleet, they are one of the loveliest sights to be seen on any sailing waters in the world, according to many Dublin Bay aficionados.

In 1964, some of the owners thought that the boats were outdated, and needed a new breath of fresh air. After extensive discussions between all the owners, the gaff rig and timber mast was abandoned in favour of a more fashionable Bermudan rig with an aluminium mast. Unfortunately, this rig put previously unseen loads on the hulls, resulting in some permanent damage.

The fleet was taken out of the water in 1986 after Hurricane Charlie ruined active Dublin Bay 21 fleet racing in August of that year. Two 21s sank in the storm, suffering the same fate as their sister ship Estelle four years earlier. The class then became defunct. In 1988, master shipwright Jack Tyrrell of Arklow inspected the fleet and considered the state of the hulls as vulnerable, describing them as 'still restorable even if some would need a virtual rebuild'. The fleet then lay rotting in a farmyard in Arklow until 2019 and the pioneering project of Dun Laoghaire sailors Fionan De Barra and Hal Sisk who decided to bring them back to their former glory.

Hurricane Charlie finally ruined active Dublin Bay 21 fleet racing in August 1986. Two 21s sank in the storm, suffering the same fate as a sister ship four years earlier; Estelle sank twice, once on her moorings and once in a near-tragic downwind capsize. Despite their collective salvage from the sea bed, the class decided the ancient boats should not be allowed suffer anymore. To avoid further deterioration and risk to the rare craft all seven 21s were put into storage in 1989 under the direction of the naval architect Jack Tyrrell at his yard in Arklow.

While two of the fleet, Garavogue and Geraldine sailed to their current home, the other five, in various states of disrepair, were carried the 50-odd miles to Arklow by road.

To revive the legendary Dublin Bay 21 class, the famous Mylne design of 1902-03. Hal Sisk and Fionan de Barra are developing ideas to retain the class's spirit while making the boats more appropriate to today's needs in Dun Laoghaire harbour, with its many other rival sailing attractions. The Dublin Bay 21-foot class's fate represents far more than the loss of a single class; it is bad news for the Bay's yachting heritage at large. Although Dún Laoghaire turned a blind eye to the plight of the oldest intact one-design keelboat fleet in the world for 30 years or more they are now fully restored.

The Dublin Bay 21 Restoration team includes Steve Morris, James Madigan, Hal Sisk, Fionan de Barra, Fintan Ryan and Dan Mill.

Retaining the pure Mylne-designed hull was essential, but the project has new laminated cold-moulded hulls which are being built inverted but will, when finished and upright, be fitted on the original ballast keels, thereby maintaining the boat’s continuity of existence, the presence of the true spirit of the ship.

It will be a gunter-rigged sloop. It was decided a simpler yet clearly vintage rig was needed for the time-constrained sailors of the 21st Century. So, far from bringing the original and almost-mythical gaff cutter rig with jackyard topsail back to life above a traditionally-constructed hull, the project is content to have an attractive gunter-rigged sloop – “American gaff” some would call it.

The first DB 21 to get the treatment was Naneen, originally built in 1905 by Clancy of Dun Laoghaire for T. Cosby Burrowes, a serial boat owner from Cavan.

On Dublin Bay. Dublin Bay Sailing Club granted a racing start for 2020 Tuesday evening racing starting in 2020, but it was deferred due to COVID-19.
Initially, two Dublin Bay 21s will race then three as the boat building project based in Kilrush on the Shannon Estuary completes the six-boat project.
The restored boats will be welcomed back to the Bay in a special DBSC gun salute from committee boat Mac Lir at the start of the season.
In a recollection for Afloat, well known Dun Laoghaire one-design sailor Roger Bannon said: "They were complete bitches of boats to sail, over-canvassed and fundamentally badly balanced. Their construction and design was also seriously flawed which meant that they constantly leaked and required endless expensive maintenance. They suffered from unbelievable lee helm which led to regular swamping's and indeed several sinkings.

©Afloat 2020