Another three - Fratantonio Daniel, David Morella and Marco De Candussio - were coastguard officers.
Mike Puplett, watch manager at Humber Coastguard, said he was very concerned for Mr McLean's safety.
"Falmouth Coastguard frequently works with other administrations during international search and rescue incidents, " he said.
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The injured were being treated at Derriford Hospital in Plymouth, the Maritime and Coastguard Agency said.
Maritime and Coastguard Agency figures show 189 tombstoning-related incidents were recorded between 2004 and 2009.
The samples have now been sent to the Maritime and Coastguard Agency's laboratory in Edinburgh.
Helicopter operators have been bidding to take over RAF, Royal Navy and coastguard duties long-term.
Clyde Coastguard is to close by the end of 2012 with the loss of 31 jobs.
The Maritime and Coastguard Agency said the Amethyst's crew made proper use of their life-saving equipment.
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Carol Collins, Stornoway Coastguard watch manager, praised the actions of the fishing boat crews.
BBC: Three fishermen rescued after boat hits rocks near Skye
The National Oceanic Administration will have control over the coastguard forces, customs and fisheries enforcement.
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Admitting the coastguard was heavy-handed, it promised to ensure that legal claims for compensation ran smoothly.
The Maritime and Coastguard Agency (MCA) has urged the public to avoid taking "unnecessary risks".
The Maritime and Coastguard Agency (MCA) said polyisobutene (PIB) can be released under certain conditions.
Companies have also been bidding to run Maritime and Coastguard Agency helicopters after 2017.
Specialist police divers, dogs, horses, the force helicopter and the coastguard have also been drafted in.
Liverpool coastguard said another attempt to move it will be probably be made on Saturday.
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The Wales Air Ambulance was also diverted to the scene with paramedics and Porthcawl coastguard.
Peter was then able, via the coastguard, to direct us to where Michael was.
Humber Coastguard said an RAF helicopter was called to assist in the rescue operation.
Brixham Coastguard said at least six ships took shelter from the weather in Torbay.
The Maritime and Coastguard Agency found inconsistencies in safety management systems, particularly with vessel maintenance.
Officers from across the UK, the ambulance service and coastguard are continuing to search for April.
At least Deepwater achieved one goal: the coastguard is now receiving plenty of attention.
Mr Ellis remarks that the coastguard has long been the Boy Scout of America's armed services.
Matt Pavitt, the Coastguard sector manager for North Cornwall, said the injured four were "badly shaken up".
The authority's standard river launches are not fast enough to respond to emergency calls from the coastguard.
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The coastguard officer also thanked Mallaig Fisherman's Mission for offering the three crewmen shelter after the incident.
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Charlie was airlifted by a Solent Coastguard helicopter to Southampton General Hospital but died later that day.
The coastguard said a helicopter crew saw the lifeless body of one man floating in the water.
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