Menu
Allianz and Afloat - Supporting Irish Boating

Ireland's sailing, boating & maritime magazine

In association with ISA Logo Irish Sailing

Displaying items by tag: UWTV

#MarineScience - The first underwater TV (UWTV) survey of the Bay of Biscay Nephrops grounds was carried out on the RV Celtic Voyager from 20-29 September.

This survey involved collaboration between the fishing industry and IFREMER, the French equivalent of the Marine Institute. The Celtic Voyager was chartered for this survey by the French fishing industry (CNPMEM).

The team of French scientists from Lorient were trained in the UWTV survey methodology by Jennifer Doyle, an expert from the Marine Institute. A fishing industry observer also participated in the survey.

This was the furthest south that the Irish Celtic Voyager research vessel has been to at 45°55′N 2°22′W.


The Bay of Biscay Nephrops grounds, known locally as 'la Grande Vasière', have an area of approximately 11,600 sqkm and support landings of Neprophs (better known as Dublin Bay prawns or langoustines) of around 4,000 tonnes annually.

During the 10-day survey, 160 UWTV stations were successfully completed with an average depth of 100 metres. At each station a sled-mounted camera system is towed at 1 knot. This allows for the detailed examination of the sea bed. The Nephrops burrows on the video footage collected are identified and counted by trained and experienced scientists.

Weather conditions throughout were perfect for TV operations with light winds, little or no swell and sea surface temperature around 20 degrees C. The visibility at the seabed was also excellent. The results from this survey will be analysed by IFREMER scientists to determine stock abundance.

The Marine Institute have been developing UWTV survey methods and technology since 2002. Since then, survey coverage has been expanded: in 2014 the main Nephrops stocks fished in Irish waters are have all been fully surveyed – Aran Grounds, Porcupine Bank, Western Irish Sea, Eastern Irish Sea, South Coast, Smalls, Labadie, Jones and Cockburn Banks.

These UWTV surveys form the cornerstone of the ICES assessments and management advice. The results of the TV surveys directly form the basis of the catch options.

All UWTV Marine Institute surveys reports are available online in the Marine Institute's open access repository.

Published in Marine Science

Fastnet Yacht Race 

This race is both a blue riband international yachting fixture and a biennial offshore pilgrimage that attracts crews from all walks of life:- from aspiring sailors to professional crews; all ages and all professions. Some are racing for charity, others for a personal challenge. For the world's top professional sailors, it is a 'must-do' race. For some, it will be their first-ever race, and for others, something they have competed in for over 50 years! The race attracts the most diverse fleet of yachts, from beautiful classic yachts to some of the fastest racing machines on the planet – and everything in between. The testing course passes eight famous landmarks along the route: The Needles, Portland Bill, Start Point, the Lizard, Land’s End, the Fastnet Rock, Bishop’s Rock off the Scillies and Plymouth breakwater (now Cherbourg for 2021 and 2023). After the start in Cowes, the fleet heads westward down The Solent, before exiting into the English Channel at Hurst Castle. The finish is in Plymouth, Devon via the Fastnet Rock, off the southern tip of Ireland.

  • The leg across the Celtic Sea to (and from) the Fastnet Rock is known to be unpredictable and challenging. The competitors are exposed to fast-moving Atlantic weather systems and the fleet often encounter tough conditions
  • Flawless decision-making, determination and total commitment are the essential requirements. Crews have to manage and anticipate the changing tidal and meteorological conditions imposed by the complex course
  • The symbol of the race is the Fastnet Rock, located off the southern coast of Ireland. Also known as the Teardrop of Ireland, the Rock marks an evocative turning point in the challenging race
  • Once sailors reach the Fastnet Rock, they are well over halfway to the finish in Plymouth.
  • The lighthouse first shone its light on New Year’s Day in 1854
    Fastnet Rock originally had six keepers (now unmanned), with four on the rock at a time with the other two on leave. Each man did four weeks on, two weeks off

At A Glance – Fastnet Race

  • The world's largest offshore yacht race
  • The biennial race is 605 nautical miles - Cowes, Fastnet Rock, Plymouth
  • A fleet of over 400 yachts regularly will take part
  • The international fleet is made up of over 26 countries
  • Multihull course record: 1 day, 8 hours, 48 minutes (2011, Banque Populaire V)
  • Monohull course record: 1 day, 18 hours, 39 minutes (2011, Volvo 70, Abu Dhabi)
  • Largest IRC Rated boat is the 100ft (30.48m) Scallywag 100 (HKG)
  • Some of the Smallest boats in the fleet are 30 footers
  • Rolex SA has been a longstanding sponsor of the race since 2001
  • The first race was in 1925 with 7 boats. The Royal Ocean Racing Club was set up as a result

Featured Sailing School

INSS sidebutton

Featured Clubs

dbsc mainbutton
Howth Yacht Club
Kinsale Yacht Club
National Yacht Club
Royal Cork Yacht Club
Royal Irish Yacht club
Royal Saint George Yacht Club

Featured Brokers

leinster sidebutton

Featured Webcams

Featured Car Brands

subaru sidebutton

Featured Associations

ISA sidebutton dob
ICRA
isora sidebutton

Featured Events 2020

Wave button for Afloat new dates

Featured Chandleries

CHMarine Afloat logo
osm sidebutton
viking sidebutton

Featured Sailmakers

northsails sidebutton
uksails sidebutton

quantum sidebutton

Featured Marinas

dlmarina sidebutton

Featured Blogs

W M Nixon - Sailing on Saturday
podcast sidebutton
mansfield sidebutton
BSB sidebutton
sellingboat sidebutton

Please show your support for Afloat by donating