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Displaying items by tag: humpback whales

The carcass of a juvenile humpback whale washed ashore in West Cork is only the ninth such stranding of the species in Ireland, according to the Irish Whale and Dolphin Group (IWDG).

Sightings officer Pádraig Whooley confirmed from images of the marine wildlife specimen captured in Roaringwater Bay yesterday (Wednesday 24 February) that it was a juvenile male not previously recorded in Irish waters.

Such young whales are not unexpected close to our shores at this time of year, when adults of breeding age are either en route to or already at lower-latitude breeding sites such as Cabo Verde off West Africa.

“This is something that some young humpbacks can opt out of, as it’s a long track south to places like the Cabo Verde and with no hope of successfully breeding there is nothing much in it for them,” Whooley explains.

“So a cohort of young, independent humpbacks seem content to over winter at higher latitudes, where there is, or should be, plenty of food for them.”

In this case, however, Whooley says: “The images we’ve received so far suggest it is in rather thin condition and so it may not have fed for some time.

“There are no obvious signs of rope marks or net damage that may suggest entanglement in fishing gear, something that slow-swimming humpbacks that remain inshore are prone to. And there are no large traumas to suggest ship-strike. So as is so often the case, the circumstances underpinning this stranding are unclear.

“IWDG hope in the coming days to visit the site to take detailed measurements and get skin and blubber samples which can be used for genetics, contaminants and stable isotope analyses.”

Whooley adds that the IWDG is in liaison with the National Parks and Wildlife Service (NPWS) regarding examination of the carcass and its disposal, but suggests that because of its remote location “there is no strong case for removal”.

Published in West Cork
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The Irish Whale and Dolphin Group (IWDG) says it has recently documented evidence of a humpback whale scarred by entanglement in fishing gear in Irish waters.

Humpback IRL#HB43 was photographed in Dingle Bay on Sunday 11 October by IWDG member Nick Massett, who noted in his images some significant scarring on its tail fluke that was not present when the same whale was spotted off West Kerry two months prior.

The charity says this scarring is consistent with entanglement — and it’s believed, based on the marine wildlife giant’s known movements between August and this month, that the lesions were sustained off West Kerry.

Humpback whales regularly feed in Ireland’s inshore waters during the summer and autumn. But this activity also brings the whales into close proximity with active fisheries.

“It’s likely this animal got caught in the rising rope of a marker buoy to a string of lobster pots, or gill net,” Massett says.

Entanglement in fishing gear is an issue of emerging concern to the IWDG, which is working with Dr Charla Basran at the University of Iceland’s Husavik Research Centre to quantify the rate of entanglement of humpback whales in Irish waters.

Dr Basran recently published work showing that 24.8% of 379 individual humpback whales photographed in Iceland presented wrapping injuries and notches known to be indicative of entanglement.

Ireland shares a whale population with Iceland, and the IWDG says will be interesting to quantify the rate of these lesions on whales photographed in Ireland — and potentially reveal where along their journey to the North Atlantic from their southern breeding grounds they pick up their wounds.

The IWDG is planning a workshop on the issue supported by knife-maker Spyderco, which has provided knives customised for cutting ropes from live whales.

Published in Marine Wildlife
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One of the victims of a deadly mass stranding of bottlenose whales in Donegal last week has not reappeared, according to Highland Radio.

Seven of the marine mammals died in the biggest mass stranding of its kind on record in Ireland, as previously reported on Afloat.ie.

The eighth whale was refloated in the shallows when the tide came in, and hopes were that it would make to back to deeper waters on its own. However it was confirmed to have died the following morning, Thursdasy 20 August.

Local volunteers with the Irish Whale and Dolphin Group (IWDG) have appealed for the public to report any possible sightings, as they are keen to get samples which might reveal more details about the whale pod and its sudden demise.

Elsewhere, rare video has been captured of the humpback whale known as ‘Boomerang’ off West Cork, as RTÉ News reports.

The whale is the third humpback in the IWDG’s records. It was first identified in 2001 thanks to its unique dorsal fin, and has returned to feed in Irish waters regularly over the last two decades.

This story was updated on Monday 31 August to correct details about the refloated bottlenose whale, which was not presumed to have survived as the previous version stated.

Published in Marine Wildlife

Whale watchers off the Kerry coast have been gifted a treat with a “feeding frenzy” of humpback whales near the Dingle Peninsula, as RTÉ News reports.

As many as 12 of the marine wildlife giants have spent more than a week chasing sprat shoals even in inshore waters — providing a rare opportunity to see them from land.

And the number includes the latest addition to the Irish Whale and Dolphin Group’s records: a juvenile that’s the 107th individual humpback in Irish books since 1999.

But the approach of Storm Ellen later today (Wednesday 19 August) means any prospective whale spotters will have to put off their plans as Status Red conditions loom.

Published in Marine Wildlife

The Irish Whale and Dolphin Group has celebrated a milestone with the confirmation of the 100th and 101st individual humpback whales in its catalogue of Ireland’s waters.

The sightings were made last Monday 20 July by Nick Massett in outer Dingle Bay — and reflect just how far the IWDG has come with its marine wildlife monitoring project, says IWDG sightings officer Pádraig Whooley.

Proper records first began in September 1999 with just three humpbacks spotted off the Kinsale Gas Fields in West Cork, and averaged fewer than one a year until the end of the Noughties, when the record totalled 12.

Humpback whale sightings became more numerous and West Cork it seemed no longer had a monopoly

“Then during the second decade, there was a change,” Whooley said.

“Humpback whale sightings became more numerous and West Cork it seemed no longer had a monopoly on the Big Winged New Englander, as individuals starting showing up as far east as Hook Head and Curracloe in Co Wexford.

“But there was always a sense that these were outliers; the real range expansion was further west off the Slea Head Peninsula, Co Kerry.

“During the second half of the decade it seemed fairly evenly split between the West Cork and West Kerry hotspots.

“That was until 2015 when something changed in the northeast Atlantic and in this year alone we doubled the numbers of animals on the catalogue from 33 to 66, with most of these showing up in West Kerry and almost all of them being new animals, never previously documented in Irish waters.”

This was also when the international research community began to take notice, especially since Irish sightings “were coming from an area where previously few humpbacks had been recorded”, Whooley said.

“We started off 2020 with 97 individually recognisable humpback whales, and it was always likely to be a big year for the catalogue, even with Covid.”

He added: “To have reached 100 by 2020, although not quite exponential, it is remarkable and surely mirrors the global recovery of this most iconic species.”

And the latest additions to the catalogue are not the only cause for celebration, as the IWDG have also made their third Irish match to the Cape Verde breeding grounds — the second this year after Ireland’s long-suspected link to the waters off West Africa was confirmed a year ago.

“It’s a great story and one IWDG look forward to sharing with you over the next 21 years,” Whooley said. “It seems humpback whales have an endless capacity to inspire both whale watchers and whale researchers alike.”

Published in Marine Wildlife
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A new hour-long documentary following the Irish Whale and Dolphin Group (IWDG) on a unique research expedition to the Arctic Circle is now available to rent and watch on demand.

On The Trail Of The Humpback Whale tells the story of the IWDG’s weeks-long passage to Iceland two years ago in search of humpback whales, building links with the country and its people among the way.

Tony Whelan of Canola Pictures — which also produced The Humpback Whales of Cape Verde — was along for the voyage, documenting the team’s encounters with local people and marine wildlife alike.

The IWDG previously brought the story of their adventure on a nationwide tour — and now it can be enjoyed at home on your choice of computer, tablet, smartphone or streaming box.

Published in Marine Wildlife

Nearly half of all humpback whales identified in Irish waters have been spotted off the coast of Co Kerry.

That’s according to new figures from the Irish Whale and Dolphin Group (IWDG), which also reveal that nearly 100 of the marine wildlife giants have been individually catalogued over the past 20 years — many of them return visitors.

IWDG chief executive Dr Simon Berrow tells the Irish Mirror that ‘citizen science’ contributions in the form of photos of cetaceans spotted offshore have been key to developing its catalogue of confirmed sightings.

“For someone to go out and find the whale, photograph the whale, recognise the whale and then go out and do it again a second or third time in the same season and give the information to us, is phenomenal,” he says.

Kerry leads the way for humpback whale sightings, accounting for almost half (46%) of the total.

But neighbouring Cork, at 42%, isn’t much further behind — and Waterford, Wexford, Galway and Clare also present good sighting opportunities.

The Irish Mirror has more on the story HERE.

Published in Marine Wildlife
Tagged under

Despite desktop research replacing field work during the ongoing Covid-19 pandemic, the Irish Whale and Dolphin Group recently made a breakthrough in confirming a second Irish humpback whale at breeding grounds off Cape Verde — following last year’s confirmation of what was long suspected by researchers.

The match with HBIRL78 — first sighted off Hook Head in January 2017 — was made in collaboration with Lindsey Jones of the North Atlantic Humpback Whale Catalogue and “suggests we were right to invest our time and energy into this archipelago”, writes IWDG sightings officer Pádraig Whooley.

Although there is little chance of any further trips this breeding season, with Cape Verde having shut down like much of the world to control the spread of the virus, the latest find will be encouraging when field work can resume in 2021.

“HBIRL78 may still be in the waters of Sal Rei Bay, Boa Vista, looking to mate or give birth, and if this is the case, it still has a long 4,250 km northbound journey ahead of it,” says Whooley. “It could of course have completed it’s reproductive mission, in which case it may be little more than a few weeks away from finding itself within scoping range of our southwest headlands.

“Whether of course we’ll be able to get out on boats to photograph it when it does return will be down to a much smaller and far less welcome organism. But given the current Covid-19 environment, I can think of nothing better for body, soul or mind, than to sit on a headland for a few hours and try to spot our returning humpbacks.”

Published in Marine Wildlife

The Irish Whale and Dolphin Group (IWDG) is seeking a new sponsor for its “pioneering” WhaleTrack Ireland project.

Previously backed by Ryanair, WhaleTrack Ireland seeks to understand how the large marine wildlife — especially humpback whales — are using Irish waters, largely through citizen science.

During the last 12 months, the IWDG says it has increased its work raising awareness of humpback whales “to unprecedented levels in Ireland”.

This includes the first ever confirmation of breeding grounds in Cape Verde for whales that frequent Irish shores.

“In order to continue this important work the IWDG need a new sponsor,” the group says.

“We have significant capital equipment purchased under the Ryanair sponsorship but require funds to support fieldwork and maintain our photo ID catalogues and provide support to our citizen scientists.

“This work supports the development of marine tourism in Ireland and greatly enhances the opportunities to go and see these magnificent creatures as well as ensuring their long-term conservation.

“The IWDG estimates that this costs around €40,000 per annum to maintain our current level of activity.”

Prospective sponsors, or those who could connect the group with same, are encouraged to get in touch with the IWDG at [email protected].

Published in Marine Wildlife

The Irish Whale and Dolphin Group (IWDG) sets sail this weekend for Cape Verde next month on its eighth humpback whale expedition.

Funded by the Island Foundation, this two-week mission comes just months after the IWDG finally confirmed the breeding grounds for Ireland’s regular humpback whale visitors near the west African island chain.

Cape Verde also appears to be a chosen spot for these marine wildlife giants from both ends of the earth, as a previous mission in September 2014 recorded humpbacks that usually feed in the southern hemisphere.

Next month’s mission, while building on this research, will also involve training local marine biologists in cetacean survey and research techniques “to empower them to take ownership of whale and dolphin conservation”.

Spanish research group Edmaktub will be providing its 47ft Lipari catamaran as a research platform for their work, updates from which will be posted to a dedicated Facebook page.

Published in Marine Wildlife
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General Information on using Waterways Ireland inland navigations

Safety on the Water

All users of the navigations are strongly recommended to make themselves aware of safety on the water for whatever activity they are involved in and to read the advice offered by the various governing bodies and by:

The Dept. of Transport, Ireland: www.gov.ie/transport and The Maritime and Coastguard Agency, UK, The RNLI – Water Safety Ireland for information in terms of drowning prevention and water safety.

Registration of Vessels

All vessels using the Shannon Navigation, which includes the Shannon-Erne Waterways and the Erne System must be registered with Waterways Ireland. Only open undecked boats with an engine of 15 horsepower or less on the Shannon Navigation, and vessels of 10 horsepower or less on the Erne System, are exempt. Registration is free of charge.

Craft registration should be completed online at: https://www.waterwaysireland.org/online-services/craft-registration

Permits for use of the Grand and Royal Canals and the Barrow Navigation

All vessels using the Grand and Royal Canals and the Barrow Navigation must display appropriate valid Permit(s) i.e A Combined Mooring and Passage Permit (€126) and if not intending to move every five days, an Extended Mooring Permit (€152).

Permit applications should be completed online at: https://www.waterwaysireland.org/online-services/canal-permits

Passage on the Royal and Grand Canals – Dublin Area

For boat passage through the locks east of Lock 12 into / out of Dublin on either the Royal or Grand Canals, Masters are requested to contact the Waterways Ireland Eastern Regional Office (M-F 9.30am-4.30pm) on tel: +353(0)1 868 0148 or email [email protected] prior to making passage in order to plan the necessary lock-keeping assistance arrangements.

On the Grand Canal a minimum of two days notice prior to the planned passage should be given, masters should note that with the exception of pre-arranged events, a maximum of 2 boats per day will be taken through the locks, travelling either east or west.

Movements in or out of the city will be organised by prior arrangement to take place as a single movement in one day. Boaters will be facilitated to travel the system if their passage is considered to be safe by Waterways Ireland and they have the valid permit(s) for mooring and passage.

Newcomen Lifting Bridge

On the Royal Canal two weeks’ notice of bridge passage (Newcomen Lifting Bridge) is required for the pre-set lift date, and lock assistance will then also be arranged. A minimum of 2 boats is required for a bridge lift to go ahead.

Waterways Ireland Eastern Regional Office (Tel: +353(0)1 868 0148 or [email protected] ) is the point of contact for the bridge lift.

A maximum number of boats passing will be implemented to keep to the times given above for the planned lifts (16 for the Sat / Sun lifts & 8 for the weekday lifts). Priority will be given on a first come first served basis.

On day of lift, boaters and passengers must follow guidance from Waterways Ireland staff about sequence of passage under bridge & through Lock 1, and must remain within signed and designated areas.

Events Held on the Waterways

All organised events taking place on the waterways must have the prior approval of Waterways Ireland. This is a twelve week process and application forms must be accompanied with the appropriate insurance, signed indemnity and risk assessment. The application should be completed on the Waterways Ireland events page at :

https://www.waterwaysireland.org/online-services/event-approval

Time Limits on Mooring in Public Harbours

On the Shannon Navigation and the Shannon-Erne Waterway craft may berth in public harbours for five consecutive days or a total of seven days in any one month.

On the Erne System, revised Bye Laws state that: No master or owner shall permit a vessel, boat or any floating or sunken object to remain moored at or in the vicinity of any public mooring, including mooring at any other public mooring within 3 kilometres of that location, for more than 3 consecutive days and shall not moor at that same mooring or any other public mooring within 3 kilometres of that location within the following 3 consecutive days without prior permission by an authorised official.

Winter Mooring on the Shannon Navigation and Shannon Erne Waterway

Winter mooring may be availed of by owners during the period 1 Nov to 31 Mar by prior arrangement and payment of a charge of €63.50 per craft. Craft not availing of Winter Mooring must continue to comply with the “5 Day Rule”. Winter Mooring applications should be completed online at : https://www.waterwaysireland.org/online-services/winter-moorings-booking

Owners should be aware that electricity supply and water supply to public moorings is disconnected for the winter months. This is to protect against frost damage, to reduce running costs and to minimise maintenance requirements during the winter months.

Vessel owners are advised that advance purchasing of electricity on the power bollards leading up to the disconnection date should be minimal. Electricity credit existing on the bollards will not be recoverable after the winter decommissioning date. Both services will be reinstated prior to the commencement of the next boating season.

Smart Cards

Waterways Ireland smart cards are used to operate locks on the Shannon Erne Waterway, to access the service blocks, to use the pump-outs along the navigations, to avail of electrical power at Waterways Ireland jetties.

Berthing in Public Harbours

Masters are reminded of the following:

  • Equip their vessel with mooring lines of appropriate length and strength and only secure their craft to mooring bollards and cleats provided for this purpose.
  • Ensure the available berth is suitable to the length of your vessel, do not overhang the mooring especially on finger moorings on floating pontoon moorings.
  • Ensure mooring lines, electric cables and fresh water hoses do not create a trip hazard on public jetties for others users.
  • Carry sufficient fenders to prevent damage to your own vessel, other vessels and WI property.
  • Allow sufficient space between your vessel and the vessel ahead /astern (c.1m) for fire safety purposes and /or to recover somebody from the water.
  • Do not berth more than two vessels side by side and ensure there is safe access/egress at all times between vessels and onto the harbour itself.
  • Do not berth in such a way to prevent use of harbour safety ladders, slipways or pump-outs.
  • Do not allow the bow of your vessel to overhang the walkway of a floating mooring thus creating a hazard for others with an overhanging anchor or bow fendering.
  • Animals are not allowed to be loose or stray at any time.
  • Harbour and jetty infrastructure such as railings, power pedestals, fresh water taps, electric light poles, safety bollards, ladders etc are not designed for the purpose of mooring craft , they will not bear the strain of a vessel and will be damaged.
  • At Carrybridge on the Erne System, Masters of vessels are not permitted to use stern on mooring. Masters of vessels must use the mooring fingers for mooring of vessels and for embarkation / disembarkation from vessels.

Passenger Vessel Berths

Masters of vessels should not berth on passenger vessel berths where it is indicated that an arrival is imminent. Passenger vessels plying the navigations generally only occupy the berths to embark and disembark passengers and rarely remain on the berths for extended periods or overnight.

Lock Lead-in Jetties

Lead-in jetties adjacent to the upstream and downstream gates at lock chambers are solely for the purpose of craft waiting to use the lock and should not be used for long term berthing.

Vessel Wake

Vessel wake, that is, the wave generated by the passage of the boat through the water, can sometimes be large, powerful and destructive depending on the hull shape and engine power of the vessel. This wake can be detrimental to other users of the navigation when it strikes their craft or inundates the shoreline or riverbank. Masters are requested to frequently look behind and check the effect of their wake / wash particularly when passing moored vessels, on entering harbours and approaching jetties and to be aware of people pursuing other activities such as fishing on the riverbank.

Speed Restriction

A vessel or boat shall not be navigated on the Shannon Navigation at a speed in excess of 5 kph when within 200 metres of a bridge, quay, jetty or wharf, when in a harbour or canal or when passing within 100 metres of a moored vessel or boat.

Vessels navigating the Shannon-Erne Waterway should observe the general 5 kph speed limit which applies along the waterway. This is necessary in order to prevent damage to the banks caused by excessive wash from vessels.

Vessels navigating the Erne System should observe the statutory 5kt / 6mph / 10kph speed limit areas.

A craft on the Royal and Grand canals shall not be navigated at a speed in excess of 6km per hour.

A craft on the Barrow Navigation shall not be navigated at a speed in excess of 11km per hour except as necessary for safe navigation in conditions of fast flow.

Bank Erosion

Narrow sections of all the navigations are particularly prone to bank erosion due to the large wash generated by some craft. Masters are requested to be vigilant and to slow down to a speed sufficient to maintain steerage when they observe the wash of their craft inundating the river banks.

Unusual Waterborne Activity

Unusual waterborne vessels may be encountered from time to time, such as, hovercraft or amphibious aircraft / seaplanes. Masters of such craft are reminded to apply the normal “Rule of the Road” when they meet conventional craft on the water and to allow extra room to manoeuvre in the interest of safety.

Sailing Activity

Mariners will encounter large numbers of sailing dinghies from late June to August in the vicinity of Lough Derg, Lough Ree and Lower Lough Erne. Sailing courses are marked by yellow buoys to suit weather conditions on the day. Vessels should proceed at slow speed and with due caution and observe the rules of navigation when passing these fleets, as many of the participants are junior sailors under training.

Rowing

Mariners should expect to meet canoes and vessels under oars on any part of the navigations, but more so in the vicinity of Athlone, Carrick-on-Shannon, Coleraine, Enniskillen and Limerick. Masters are reminded to proceed at slow speed and especially to reduce their wash to a minimum when passing these craft as they can be easily upset and swamped due to their very low freeboard and always be prepared to give way in any given traffic situation.

Canoeing

Canoeing is an adventure sport and participants are strongly recommended to seek the advice of the sport’s governing bodies i.e Canoeing Ireland and the Canoe Association of Northern Ireland, before venturing onto the navigations.

Persons in charge of canoes are reminded of the inherent danger to these craft associated with operating close to weirs, sluice gates, locks and other infrastructure particularly when rivers are in flood and large volumes of water are moving through the navigations due to general flood conditions or very heavy localised precipitation e.g. turbulent and broken water, stopper waves. Shooting weirs is prohibited without prior permission of Waterways Ireland.

Canoeists should check with lockkeepers prior entering a lock to ensure passage is done in a safe manner. Portage is required at all unmanned locks.

Canoe Trail Network – "Blueways"

Masters of powered craft are reminded that a canoe trail network is being developed across all navigations and to expect more organised canoeing along these trails necessitating slow speed and minimum wash when encountering canoeists, rowing boats etc

Rockingham and Drummans Island Canals – Lough Key

It is expected that work on Rockingham and Drummans Island Canals on Lough Key will be completed in 2021. Access to these canals will be for non-powered craft only, eg canoes, kayaks, rowing boats.

Fast Powerboats and Personal Watercraft (Jet Skis)

Masters of Fast Powerboats (speed greater than 17kts) and Personal Watercraft (i.e.Jet Skis) are reminded of the inherent dangers associated with high speed on the water and especially in the confines of small bays and narrow sections of the navigations. Keeping a proper look-out, making early alterations to course and /or reducing speed will avoid conflict with slower vessels using the navigation. Personal Watercraft are not permitted to be used on the canals.

Towing Waterskiers, Wakeboarders, Doughnuts etc

Masters of vessels engaged in any of these activities are reminded of the manoeuvring constraints imposed upon their vessel by the tow and of the added responsibilities that they have to the person(s) being towed. These activities should be conducted in areas which are clear of conflicting traffic. It is highly recommended that a person additional to the master be carried to act as a “look-out” to keep the tow under observation at all times.

Prohibition on Swimming

Swimming in the navigable channel, particularly at bridges, is dangerous and is prohibited due to the risk of being run over by a vessel underway in the navigation.

Age Restrictions on operating of powered craft

In the Republic of Ireland, Statutory Instrument 921 of 2005 provides the legal requirements regarding the minimum age for operating of powered craft. The Statutory Instrument contains the following requirements:

- The master or owner of a personal watercraft or a fast power craft shall take all reasonable steps to ensure that a person who has not attained the age of 16 years does not operate or control the craft

- The master or owner of a pleasure craft powered by an engine with a rating of more than 5 horse power or 3.7 kilowatts shall take all reasonable steps to ensure that a person who has not attained the age of 12 years does not operate or control the craft.

Lifejackets and Personal Flotation Devices (PFDs)

Lifejackets and PFD’s are the single most important items of personal protective equipment to be used on a vessel and should be worn especially when the vessel is being manoeuvred such as entering / departing a lock, anchoring, coming alongside or departing a jetty or quayside.

In the Republic of Ireland, Statutory Instrument 921 of 2005 provides the legal requirements regarding the wearing of Personal Flotation Devices. The Statutory Instrument contains the following requirements:

- The master or owner of a pleasure craft (other than a personal watercraft) shall ensure, that there are, at all times on board the craft, sufficient suitable personal flotation devices for each person on board.

- A person on a pleasure craft (other than a personal watercraft) of less than 7 metres length overall shall wear a suitable personal flotation device while on board an open craft or while on the deck of decked craft, other than when the craft is made fast to the shore or at anchor.

- The master or owner of a pleasure craft (other than a personal watercraft) shall take all reasonable steps to ensure that a person who has not attained the age of 16 years complies with paragraph above.

- The master or owner of a pleasure craft (other than a personal watercraft), shall take all reasonable steps to ensure that a person who has not attained the age of 16 years wears a suitable personal flotation device while on board an open craft or while on the deck of a decked craft other than when it is made fast to the shore or at anchor.

- The master or owner of a pleasure craft (other than a personal watercraft) shall take all reasonable steps to ensure that a person wears a suitable personal flotation device, at all times while – (a) being towed by the craft, (b) on board a vessel or object of any kind which is being towed by the craft.

Further information is available at: http://www.irishstatutebook.ie/eli/2005/si/921/made/en/print

Firing Range Danger Area – Lough Ree

The attention of mariners is drawn to the Irish Defence Forces Firing Range situated in the vicinity of buoys No’s 2 and 3, on Lough Ree on the Shannon Navigation. This range is used regularly for live firing exercises, throughout the year, all boats and vessels should stay clear of the area marked with yellow buoys showing a yellow "X" topmark and displaying the word "Danger".

Shannon Navigation, Portumna Swing Bridge Tolls

No attempt should be made by Masters’ of vessels to pay the bridge toll while making way through the bridge opening. Payment will only be taken by the Collector from Masters when they are secured alongside the jetties north and south of the bridge.

Navigating from Killaloe to Limerick on the Shannon Navigation

The navigation from Killaloe to Limerick involves passage through Ardnacrusha locks, the associated headrace and tailrace and the Abbey River into Limerick City. Careful passage planning is required to undertake this voyage. Considerations include: lock passage at Ardnacrusha, water flow in the navigation, airdraft under bridges on Abbey River in Limerick, state of tide in Limerick

Users are advised to contact the ESB Ardnacrusha hydroelectric power station (00353 (0)87 9970131) 48 hours in advance of commencing their journey to book passage through the locks at Ardnacrusha. It is NOT advised to undertake a voyage if more than one turbine is operating (20MW), due to the increased velocity of flow in the navigation channel, which can be dangerous. To ascertain automatically in real time how many turbines are running, users can phone +353 (0)87 6477229.

For safety reasons the ESB has advised that only powered craft with a capacity in excess of 5 knots are allowed to enter Ardnacrusha Headrace and Tailrace Canals.

Passage through Sarsfield Lock should be booked on +353-87-7972998, on the day prior to travel and it should be noted also that transit is not possible two hours either side of low water.

A Hydrographic survey in 2020 of the navigation channel revealed that the approach from Shannon Bridge to Sarsfield Lock and the Dock area has silted up. Masters of vessels and water users are advised to navigate to the Lock from Shannon bridge on a rising tide one or two hours before High Tide.

Lower Bann Navigation

The attention of all users is drawn to the “Users Code for the Lower Bann”, in particular to that section covering “Flow in the River” outlining the dangers for users both on the banks and in the navigation, associated with high flow rates when the river is in spate. Canoeists should consult and carry a copy of the “Lower Bann Canoe Trail” guide issued by the Canoe Association of Northern Ireland. Users should also contact the DfI Rivers Coleraine, who is responsible for regulating the flow rates on the river, for advisory information on the flow rates to be expected on any given day.

DfI Rivers Coleraine. Tel: 0044 28 7034 2357 Email: [email protected]

Lower Bann Navigation – Newferry – No wake zone

A No Wake Zone exists on the Lower Bann Navigation at Newferry. Masters of vessels are requested to proceed at a slow speed and create no wake while passing the jetties and slipways at Newferry.

Overhead Power Lines (OHPL) and Air draft

All Masters must be aware of the dangers associated with overhead power lines, in particular sailing vessels and workboats with cranes or large air drafts. Voyage planning is a necessity in order to identify the location of overhead lines crossing the navigation.

Overhead power line heights on the River Shannon are maintained at 12.6metres (40 feet) from Normal Summer level for that section of navigation, masters of vessels with a large air draft should proceed with caution and make additional allowances when water levels are high.

If a vessel or its equipment comes into contact with an OHPL the operator should NOT attempt to move the vessel or equipment. The conductor may still be alive or re-energise automatically. Maintain a safe distance and prevent third parties from approaching due to risk of arcing. Contact the emergency services for assistance.

Anglers are also reminded that a minimum ground distance of 30 metres should be maintained from overhead power lines when using a rod and line.

Submarine Cables and Pipes

Masters of vessels are reminded not to anchor their vessels in the vicinity of submarine cables or pipes in case they foul their anchor or damage the cables or pipes. Look to the river banks for signage indicating their presence.

Water Levels - Precautions

Low Water Levels:

When water levels fall below normal summer levels masters should be aware of:

Navigation

To reduce the risk of grounding masters should navigate on or near the centreline of the channel, avoid short cutting in dog-legged channels and navigating too close to navigation markers.

Proceeding at a slow speed will also reduce “squat” effect i.e. where the vessel tends to sit lower in the water as a consequence of higher speed.

Slipways

Reduced slipway length available under the water surface and the possibility of launching trailers dropping off the end of the concrete apron.

More slipway surface susceptible to weed growth requiring care while engaged in launching boats, from slipping and sliding on the slope. Note also that launching vehicles may not be able to get sufficient traction on the slipway once the craft is launched to get up the incline.

Bank Erosion

Very dry riverbanks are more susceptible to erosion from vessel wash.

Lock Share

Maximising on the number of vessels in a lock will ensure that the total volume of water moving downstream is decreased. Lock cycles should be used for vessels travelling each way.

High Water Levels:

When water levels rise above normal summer level masters should be aware of:

Navigation

Navigation marks will have reduced height above the water level or may disappear underwater altogether making the navigable channel difficult to discern.

In narrow sections of the navigations water levels will tend to rise more quickly than in main streams and air draft at bridges will likewise be reduced.

There will also be increased flow rates particularly in the vicinity of navigation infrastructure such as bridges, weirs, locks etc where extra care in manoeuvring vessels will be required.

Harbours and Jetties

Due care is required in harbours and at slipways when levels are at or near the same level as the harbour walkways' as the edge will be difficult to discern especially in reduced light conditions. It is advised that Personal Flotation Devices be worn if tending to craft in a harbour in these conditions.

Slipways

Slipways should only be used for the purpose of launching and recovering of water craft or other objects from the water. Before using a slipway it should be examined to ensure that the surface has sufficient traction/grip for the intended purpose such as launching a craft from a trailer using a vehicle, that there is sufficient depth of water on the slipway to float the craft off the trailer before the concrete apron ends and that the wheels of the trailer do not drop off the edge of the slipway. That life-saving appliances are available in the vicinity, that the vehicle is roadworthy and capable of coping with the weight of the trailer and boat on the incline. It is recommended that slipway operations are conducted by two persons.

Caution to be Used in Reliance upon Aids to Navigation

The aids to navigation depicted on the navigation guides comprise a system of fixed and floating aids to navigation. Prudent mariners will not rely solely on any single aid to navigation, particularly a floating aid to navigation. With respect to buoys, the buoy symbol is used to indicate the approximate position of the buoy body and the ground tackle which secures it to the lake or river bed. The approximate position is used because of the practical limitations in positioning and maintaining buoys in precise geographical locations. These limitations include, but are not limited to, prevailing atmospheric and lake/river conditions, the slope of and the material making up the lake/river bed, the fact that the buoys are moored to varying lengths of chain, and the fact that the buoy body and/or ground tackle positions are not under continuous surveillance. Due to the forces of nature, the position of the buoy body can be expected to shift inside and outside the charted symbol.

Buoys and perches are also moved out of position or pulled over by those mariners who use them to moor up to instead of anchoring. To this end, mariners should always monitor their passage by relating buoy/perch positions with the published navigation guide. Furthermore, a vessel attempting to pass close by always risks collision with a yawing buoy or with the obstruction that the buoy or beacon/perch marks.

Masters of Vessels are requested to use the most up to date Navigation guides when navigating on the Inland Waterways.

Information taken from Special Marine Notice No 1 of 2023