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Ireland's sailing, boating & maritime magazine

Displaying items by tag: algae blooms

European space satellite imagery could replace human monitoring as an effective “health check” of Ireland’s coastal environment, according to new research by NUI Galway scientists.

As The Times Ireland edition reports, earth observation data sets recorded by European Space Agency (ESA) satellites can monitor the spread of algal blooms and other key information which is normally collected in field surveys.

A study of satellite imagery for eight Irish estuaries led by NUI Galway (NUIG) scientist Dr Liam Morrison with researcher Sita Karki showed this type of monitoring could be very cost-effective.

Estuarine and coastal waters worldwide have been facing increasing challenges from generalised use of industrial fertilisers since the second world war, the researchers note.

Macroalgal blooms are regarded as a “clear sign” of nutrient over-enrichment which estuaries are particularly susceptible to - reducing both fish species and water quality.

An Environmental Protection Agency (EPA) report of 2019 found that transitional waters - as in estuaries and coastal lagoons - in Ireland have poorer water quality than groundwater systems, rivers, lakes, and coastal waters.

The research team analysed imagery for the eight Irish estuaries captured by the Sentinel-2A/B, Landsat-5, and Landsat-8 satellite missions.

The locations ranged from Rogerstown, Malahide and the Tolka on Dublin’s north side to Bannow Bay, Dungarvan and the lower Blackwater in the south-east to Courtmacsherry and Clonakilty in Co Cork.

The study was a collaboration between NUIG and the Irish Centre for High End Computing, and was funded by the EPA.

It is published in the current issue of Frontiers in Marine Science.

Read more in The Times Ireland edition here

Published in Coastal Notes

#COASTAL NOTES - Bantry Bay has reached its capacity for salmon farming, says the committee formed to oppose a proposed new facility at Shot Head.

Save Bantry Bay has called a public meeting for supporters tonight (24 March) at Eccles Hotel in Glengarrif, Co Cork, starting at 8.15pm - where chairman Kieran O'Shea will give a presentation on the group's "wide-ranging objections", as The Fish Site reports.

Minister for the Marine Simon Coveney is currently considering the licence application for Marine Harvet's proposed salmon farm at Shot Head in Adrigole.

Concerns among the committee's members include the potential spoiling of the area's natural beauty having a knock-on effect on tourism, and the environmental consequences of algae blooms from nitrogen and phosphorous waste.

Local fisherman fear that a fish farm of more than 100 acres would see the closing off of part of an "important ground for shrimp and prawn".

Possible infection of wild salmon in local river systems by sea lice from farmed salmon is also an issue, with the Environmental Impact Statement for Shot Head highlighting an outbreak of lice at Marine Harvest's facility in Roancarrig two years ago.

The Fish Site has more on the story HERE.

Published in Coastal Notes

Royal National Lifeboat Institute (RNLI) in Ireland Information

The Royal National Lifeboat Institution (RNLI) is a charity to save lives at sea in the waters of UK and Ireland. Funded principally by legacies and donations, the RNLI operates a fleet of lifeboats, crewed by volunteers, based at a range of coastal and inland waters stations. Working closely with UK and Ireland Coastguards, RNLI crews are available to launch at short notice to assist people and vessels in difficulties.

RNLI was founded in 1824 and is based in Poole, Dorset. The organisation raised €210m in funds in 2019, spending €200m on lifesaving activities and water safety education. RNLI also provides a beach lifeguard service in the UK and has recently developed an International drowning prevention strategy, partnering with other organisations and governments to make drowning prevention a global priority.

Irish Lifeboat Stations

There are 46 lifeboat stations on the island of Ireland, with an operational base in Swords, Co Dublin. Irish RNLI crews are tasked through a paging system instigated by the Irish Coast Guard which can task a range of rescue resources depending on the nature of the emergency.

Famous Irish Lifeboat Rescues

Irish Lifeboats have participated in many rescues, perhaps the most famous of which was the rescue of the crew of the Daunt Rock lightship off Cork Harbour by the Ballycotton lifeboat in 1936. Spending almost 50 hours at sea, the lifeboat stood by the drifting lightship until the proximity to the Daunt Rock forced the coxswain to get alongside and successfully rescue the lightship's crew.

32 Irish lifeboat crew have been lost in rescue missions, including the 15 crew of the Kingstown (now Dun Laoghaire) lifeboat which capsized while attempting to rescue the crew of the SS Palme on Christmas Eve 1895.

FAQs

While the number of callouts to lifeboat stations varies from year to year, Howth Lifeboat station has aggregated more 'shouts' in recent years than other stations, averaging just over 60 a year.

Stations with an offshore lifeboat have a full-time mechanic, while some have a full-time coxswain. However, most lifeboat crews are volunteers.

There are 46 lifeboat stations on the island of Ireland

32 Irish lifeboat crew have been lost in rescue missions, including the 15 crew of the Kingstown (now Dun Laoghaire) lifeboat which capsized while attempting to rescue the crew of the SS Palme on Christmas Eve 1895

In 2019, 8,941 lifeboat launches saved 342 lives across the RNLI fleet.

The Irish fleet is a mixture of inshore and all-weather (offshore) craft. The offshore lifeboats, which range from 17m to 12m in length are either moored afloat, launched down a slipway or are towed into the sea on a trailer and launched. The inshore boats are either rigid or non-rigid inflatables.

The Irish Coast Guard in the Republic of Ireland or the UK Coastguard in Northern Ireland task lifeboats when an emergency call is received, through any of the recognised systems. These include 999/112 phone calls, Mayday/PanPan calls on VHF, a signal from an emergency position indicating radio beacon (EPIRB) or distress signals.

The Irish Coast Guard is the government agency responsible for the response to, and co-ordination of, maritime accidents which require search and rescue operations. To carry out their task the Coast Guard calls on their own resources – Coast Guard units manned by volunteers and contracted helicopters, as well as "declared resources" - RNLI lifeboats and crews. While lifeboats conduct the operation, the coordination is provided by the Coast Guard.

A lifeboat coxswain (pronounced cox'n) is the skipper or master of the lifeboat.

RNLI Lifeboat crews are required to follow a particular development plan that covers a pre-agreed range of skills necessary to complete particular tasks. These skills and tasks form part of the competence-based training that is delivered both locally and at the RNLI's Lifeboat College in Poole, Dorset

 

While the RNLI is dependent on donations and legacies for funding, they also need volunteer crew and fund-raisers.

© Afloat 2020

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