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Displaying items by tag: Industrial mussel 'Dalkey' dredgers

#DredgingDalkey - Industrial mussel seed dredging will leave Ireland's coastal waters "full of jellyfish and little else", convervationists claim.

As the The Irish Independent writes, four industrial trawlers had worked in Dublin Bay over the three days beginning last Sunday (23 October). 

Afloat.ie adds the dredging activity was understood to be for mussel seed fishing by the four trawlers dragging cage nets across the seabed of Dalkey Sound. On the final day of dredging, Tuesday, the last vessels to operate, the near 50m long Emerald Gratia (photo above) and 40m Rona, departed for Lough Foyle. The pair arrived last Wednesday at Carrickarory Pier, south of Moville.

The Irish Independent also in its coverage wrote, the Government permits industrial dredging for young mussels but last Thursday the Supreme Court ruled that the contents of the seabed inside our six-mile territorial limit are State "assets" and should be protected.

Two of the trawlers operating in Dublin Bay last week are understood to have been collecting seed mussel for "finishing" grounds in Welsh waters. 

Two others, registered in the Republic, are believed to have been dredging for mussel farms on the west coast of Ireland.

The sea area being dredged, like much of the coastal area of Ireland, has seen major declines in many types of sea life, with anglers and small commercial fishing operations reporting falls in catches year after year. And this summer, as in other recent years, beaches and bathing places around Irish inshore waters have been closed due to swarms of stinging jellyfish.

The few people still earning a living from inshore fishing said that the dredging was causing huge and long-term damage to our fisheries. "The damage caused by the dredgers is absolutely enormous," said Dalkey lobster fisherwoman and boat-hire operator Dolores Smith

"There are stretches of seabed just over there that have been obliterated. The Dublin Bay prawn is extinct now. There are none in the bay any more. People may call prawns Dublin Bay but they're from somewhere else because there are none left here."

Ms Smith also said there was a foul smell around Dalkey Sound and the other dredged areas."It smelt like rotting corpses; it was horrible out there," she added.

She pointed out that Dalkey Sound is officially designated a "specially protected area", yet this has not prevented the trawling of the seabed.

For more including a response from The Irish Wildlife Trust, the newspaper reports here. 

Published in Dredging

About the 29er Skiff Dinghy

The 29er is a one-design double-handed, single trapeze skiff for youth sailors.

There is an active class in Ireland, just one of the 38-countries from across all continents now racing the high-performance skiff.

The 29er is one of the latest dinghy classes to arrive in Ireland and has a 50/50 split between boys and girls.

The class like to describe the boat as "The most popular skiff for sailors who want to go fast!".

Derived from the Olympic class 49er class and designed by Julian Bethwaite the 29er was first produced in 1998.

Two sailors sail the 29er, one on trapeze.

The class is targeted at youth sailors aiming at sailing the larger 49er which is an Olympic class.


The 6.25-metre high rig features a fractional asymmetrical spinnaker; a self-tacking jib decreases the workload of the crew, making manoeuvres more efficient and freeing the crew to take the mainsheet upwind and on two-sail reaches.

The 15.00 m2 spinnaker rigging set-up challenges crews to be fit and coordinated, and manoeuvres in the boat require athleticism due to its lack of inherent stability and the high speed with which the fully battened mainsail and jib power up.

The 74kg weight hull is constructed of fibreglass-reinforced polyester in a foam sandwich layout.

The fully battened mainsail and jib are made from a transparent Mylar laminate with orange or red Dacron trimming, while the spinnaker is manufactured from ripstop Nylon.

The mast is in three parts - an aluminium bottom and middle section, with a polyester-fibreglass composite tip to increase mast bend and decrease both overall weights, and the capsizing moment a heavy mast tip can generate. Foils are aluminium or fibreglass.

About the ILCA/Laser Dinghy

The ILCA, formerly known as the Laser, is the most produced boat in the world, with 220,000 units built since 1971.

It's easy to see why the single-handed dinghy has won the title of the most widely distributed boat of all time.

The Laser is a one-design dinghy, the hulls being identical but three rigs that can be used according to the size and weight of the sailor.

The class is international, with sailors from 120 countries. The boat has also been an Olympic class since 1996, being both the men's and women's singlehanded dinghy.

Three rigs are recognised by the International Laser Class Association (ILCA):

  • ILCA 4: sail of 4.70m2
  • ILCA 6: sail of 5.76 m2
  • ILCA 7: sail of 7.06 m2

29er skiff technical specs

  • Hull weight 74kg (163lb)
  • LOA 4.45m (14.4ft)
  • Beam 1.77m (5ft 7in)
  • Crew 2 (single trapeze) 
  • Spinnaker area 15.00 m2 (181.2sq.ft)
  • Upwind sail area 12.5 m2 (142.0 sq.ft)
  • Mast length 6.25m (20.5ft)

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