Displaying items by tag: RV Celtic Explorer
These data provide scientists, climate researchers and international policy makers with essential information on ocean carbon dioxide measurements.
About 36 billion tonnes of carbon dioxide are added to the atmosphere each year as a result of human activities. The ocean absorbs about one-quarter of these emissions, which helps to slow down climate change by removing CO2 from the atmosphere.
However, absorbing additional CO2 increases the acidity of seawater. This process is known as ocean acidification, and it could have dramatic consequences for marine life.
The impacts of ocean acidification would extend up the food chain, threatening food security for millions of people
If sea water is too acidic, it can make it difficult for marine organisms such as coral, oysters and mussels to form shells and skeletons.
Ocean acidification may impact some plankton species, which form the base of marine food webs and would impact larger animals like fish and whales.
The impacts of ocean acidification would extend up the food chain, affecting fisheries and aquaculture, threatening food security for millions of people, as well as the tourism industry.
Ocean acidification is a global problem. The European Union has committed to cut its greenhouse gas emissions by at least 40% below 1990 levels by 2030 and aims to be climate-neutral — an economy with net-zero greenhouse gas emissions — by 2050.
To understand the Earth’s changing climate, it is essential to collect high-quality data on surface ocean CO2 levels.
Since 2017, the Marine institute has been measuring dissolved carbon dioxide (pCO2) in Irish and Atlantic surface waters using a General Oceanics pCO2 system on board the RV Celtic Explorer. This system enables near-continuous and high-accuracy carbon dioxide measurements in surface water and the atmosphere when the vessel is at sea.
The close collaboration between the Marine Institute and P&O Maritime Services, with support from GEOMAR in Germany, has resulted in the successful collection of this data.
SOCAT has become a milestone in research co-ordination, data access, climate research and in informing policy
The high-quality measurements of CO2 collected by the Marine Institute are now included in the 2020 version of the Surface Ocean Carbon Atlas (SOCAT) and fill “a notable data gap”, according to the Irish State agency for marine research.
The Marine Institute submitted data from nine surveys in 2017 and a further 15 surveys in 2018 to SOCAT, whose data set os used globally by climate researchers and contribute to the work of the Intergovernmental Panel on Climate Change (IPCC).
SOCAT has become a milestone in research co-ordination, data access, climate research and in informing policy, the Marine Institute says.
And this work further contributes to collaborative research on ocean carbon and acidification undertaken over the last decade by the institute and NUI Galway.
Margot Cronin, chemist at the Marine Institute, said: “Measuring carbon dioxide in Irish and Atlantic waters provides essential data that increases the understanding of our oceans and climate.
“The Marine Institute is contributing to global science, providing advanced scientific knowledge which will help inform policy and our response to a changing ocean.”
As previously reported on Afloat.ie, the Marine Institute’s latest Oceans of Learning series focuses on our changing ocean climate with videos, interactive activities and downloadable resources.
The first and second leg of 2020’s Irish Anglerfish and Megrim Survey will be carried out from next weekend off the West, South West and South Coasts of Ireland by the Marine Institute, in fulfilment of Ireland’s Common Fisheries Policy obligations.
As with previous years, IAMS 2020 — which will run from Sunday 23 February to Wednesday 18 March — is a demersal trawl survey consisting of approximately 110 otter trawls (60 minutes) in ICES areas 7b, 7c, 7g, 7h, 7j and 7k.
The survey will be conducted by the RV Celtic Explorer (Callsign: EIGB) which will be towing a Jackson demersal trawl during fishing operations and will display appropriate lights and signals.
Commercial fishing and other marine operators are requested to keep a three-nautical-mile radius area around the tow points (indicated below) clear of any gear or apparatus during the survey period outlined above.
Further details of the survey, including co-ordinates of the survey stations, are included in Marine Notice No 07 of 2020, a PDF of which is available to read or download HERE.
The Marine Institute in collaboration with the Strategic Marine Alliance for Research and Training (SMART) is offering 22 bursaries on dedicated FEAS surveys throughout 2020 on the RV Celtic Explorer and RV Celtic Voyager.
Bursaries include groundfish, acoustic and underwater TV surveys (UWTV) on 13 survey legs between February and December of this year on the shelf waters of the Irish EEZ.
Successful applicants will receive a Student at Sea Bursary at a fixed rate of €95 per survey night.
Participants will receive hands-on training in data collection and sampling techniques, be fully integrated into the survey work programme and make an important contribution to achieving the survey goals for marine science.
In so doing they will gain valuable sea going experience and assist the Marine Institute in building the necessary capacity for offshore research and monitoring.
Applicants should be marine-oriented graduates, postgraduates, researchers or practitioners in marine-oriented enterprises. They must hold current ENG11 medical and Personal Survival Techniques (PST STCW95) certificates, and should have some prior sea-going experience.
Further information on the available bursaries can be found on the SMART website, which also has details of the online application process.
Ireland’s Deep Atlantic — produced by Sea Fever Productions and supported by the Marine Institute, BAI and the Environmental Protection Agency — sees filmmaker Ken O'Sullivan embark on a series of voyages in the North Atlantic in search of blue whales, sharks and deep-water coral reefs.
O’Sullivan filmed part of the series on board the Marine Institute’s research vessel the RV Celtic Explorer and documented coral reefs at a depth of 3,000 metres using the ROV Holland 1.
The series joins two other Irish-produced and publicly funded TV programmes used to create the new online classroom resources.
Business Studies students will use the series, including video clips of the RV Celtic Explorer and scientists, to learn about consumer behaviour and sustainable development, and the impact of economic growth on society and the environment.
Geography students, meanwhile, will learn about the ‘Real Map of Ireland’ and the importance of Ireland's ocean territory. The students will also learn about the exploitation of water, fish stocks, forestry, and soil and the relationships between the physical world, tourism and transport.
Ken O’Sullivan welcomed the new resources, saying: “It’s just wonderful now to realise that every teenager in Ireland will see our beautiful, fertile oceans and learn not just about the rich life within them, but the impact of human behaviour on our oceans with things like consumer spending habits, marine plastics and also the value of eco-tourism to coastal communities.
“Ireland’s Deep Atlantic is the first documentary to be used in this way and the platform has now been built for RTÉ to host many more publicly funded documentaries in this way for the secondary school education curriculum.”
Teachers and students can access the educational material and the programme clips referenced from the RTÉ Learn website.
The annual Irish Groundfish Survey (IGFS 2019) will take place off the North, West and South Coasts for six weeks from 31 October.
As part of the requirements for the 2019 survey, fishing will take place within a 2-nautical-mile radius of indicated positions.
The survey will be conducted by the RV Celtic Explorer (callsign EIGB) which will display appropriate lights and signals.
The vessel will be towing a high headline GOV 36/47 demersal trawl during fishing operations.
The Marine Institute requests that commercial fishing and other marine operators keep a 2nm area around the tow mid-points clear of any gear or apparatus during the survey period between Thursday 31 October and Friday 14 December.
This survey follows the annual Irish Anglerfish and Megrim Survey which was conducted off the West South West and South Coasts in March.
Marine scientists from University College Cork have discovered plastic at the bottom of a deep submarine canyon while investigating cold-water coral habitats.
UCC’s Marine Geology Research Group has been investigating cold-water coral habitats in the Porcupine Bank Canyon, some 320km due west of Dingle, on a research expedition led by UCC’s Dr Aaron Lim on board the Marine Institute’s RV Celtic Explorer.
The team had recovered eight novel monitoring stations, called ‘landers’, worth €450,000 and deployed between 700m and 2500m water depth by the Marine Institute’s Remotely Operated Vehicle (ROV) Holland 1 earlier this summer.
The monitoring stations record the speed, temperatures and direction of the currents around these habitats as well as trapping samples of the food, sediments and microplastic being deposited around the corals, to understand conditions and how the corals are coping with changing oceans.
The researchers found plastic in the bottom of one canyon at 2,125m water depth — as deep as ten Eiffel Towers stacked on top of one another.
The reach of human plastic waste is now confirmed as this deep, even 320km offshore.
“It’s always sad to see plastic rubbish in these otherwise pristine habitats. It’s quite incredible that our plastic waste can get this far out and so deep in the oceans,” said Professor Andy Wheeler of UCC, who has pioneered research on cold-water coral mounds offshore of Ireland over the past 20 years.
“I don’t think people think about this when that dump their rubbish. We’re also trying to see if microplastics are being fed to the corals from above. We’ve just got the samples; let’s hope we're wrong.”
The Porcupine Bank Canyon is teeming with a whole range of cold-water coral habitats, just on Ireland’s doorstep, says Dr Lim.
“The environment is much more dynamic than we thought, with two of the monitoring stations knocked over by the currents; food supply for the coral is variable but the corals are doing okay.
“Some of these habitats have existed for millions of years and have grown so large they resemble hills made of coral, called coral mounds.
“This is the first time eight of these monitoring stations have been deployed and collected using the ROV Holland 1. It will provide scientists with an insight into the processes affecting these cold-water coral habitats, food sources and the impact of microplastics.”
Dr Lim said Ireland’s cold-water coral reefs are found in the cold, dark ocean at water depths of 600m to 1,000m along our continental margin.
“Not only is this expedition vital for understanding these habitats and our impact upon them, it also acts as a baseline to start monitoring how our deep-water habitats here are changing,” he added.
The team has a research agenda which will see them return to the canyon and other habitats alike for a number of years, to monitor the changes in the environment around these habitats. The monitoring stations will be brought back to UCC for detailed analyses.
This research survey is carried out with the support of the Marine Institute, funded under the Marine Research Programme 2014-2020 by the Government to support and promote the Atlantic Ocean Research Alliance, which facilitates common research and knowledge exchange for us to provide healthy, resilient oceans for our future generations.
The survey has also received funding from Science Foundation Ireland, Geological Survey Ireland and UCC.
A shark species previously unrecorded in Irish waters has been sighted in the Celtic Sea.
The sighting was made by experienced marine mammal observer John Power and bird observer Paul Connaughton during the Marine Institute’s Western European Shelf Pelagic Acoustic Survey (WESPAS).
“While scanning the ocean surface, we sighted a dorsal fin unlike anything we had encountered before,” said Power.
“It was quite different to the fins seen on basking sharks and blue sharks. After consulting available ID keys, we agreed that the shark must be a smooth hammerhead.”
The large, tall and slender dorsal fin of the smooth hammerhead shark distinguishes it from other shark species. The smooth hammerhead also has a single-notch in the centre of its rounded head and is up to four metres in length.
The species gives birth to live young and the pups are usually found in the shallow sandy waters near Florida, the Caribbean and West Africa. However, the species has been recorded as far north as England and Wales.
The smooth hammerhead was sighted during the WESPAS survey, which surveys the waters from France to Scotland and the West of Ireland each year.
Marine scientists collect acoustic and biological data on herring, boarfish and horse mackerel, which is used to provide an independent measure of these fish stocks in Irish waters. Scientists also monitor plankton, sea birds and marine mammals during this survey.
This is an exciting encounter, especially since a rare deep-water shark nursery was discovered by Irish scientists last year
Dr Paul Connolly, director of fisheries and ecosystems services at the Marine Institute, said: “Our Irish waters support a range of marine life and diverse ecosystems, including 35 known species of sharks.
“This is an exciting encounter, especially since a rare deep-water shark nursery, 200 miles west of Ireland, was discovered by Irish scientists last year using the Marine Institute's Remotely Operated Vehicle [ROV Holland 1].”
He added: “This sighting of a new shark species shows the importance of our fishery surveys to monitor our marine environment, and to observe changes in our oceans and marine ecosystems.
“Observing and understanding a changing ocean, is essential for protecting and managing our marine ecosystems for the future.”
The hammerhead shark poses little risk to humans, and there have been no known fatalities from hammerhead sharks anywhere in the world to date.
The species is listed as Vulnerable on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species, and is being increasingly targeted for the shark fin trade as its large fins are highly valued.
Thirty-five species of sharks have been recorded in Irish waters, including the blue shark, porbeagle shark, lesser spotted dogfish and the second-largest shark in the world, the basking shark — a regular visitor inshore during the summer months.
The first in a series of hydrographic and geophysical surveys to be undertaken in the Celtic Sea and Atlantic Ocean under the INFOMAR programme between April and October 2019 is now under way.
The RV Celtic Voyager (callsign EIQN) set off on Friday 12 April for an 18-day survey, the first of four over the next five months 18 May-6 June, 12-28 July, 29 August-14 September).
The RV Celtic Explorer (callsign EIGB) will follow up with an 18-day survey from 21 September to 8 October. Both vessels will be towing a magnetometer sensor with a single cable of up to 200 metres in length.
Other survey vessel involved include the Geological Survey Ireland vessels RV Keary (callsign EI-GO-9), RV Geo (callsign EI-DK-6), RV Mallet (callsign EI-SN-9) and RV Lir (callsign EI-HI-2).
All will display appropriate lights and markers and will be listening on VHF Channel 16 throughout the course of the surveys.
The pupils completed a project module on sharks in Irish waters as part of the Marine Institute’s Explorers Education Programme, and also had the opportunity to visit the State research vessel.
Outreach officer Padraic Creedon of the Explorers Education Programme said one if the programme’s unique elements “is the content and support provided to teachers in the classroom in an easy and fun way.
“The students were inspired by the discovery of a rare shark nursery 200 miles off the west coast of Ireland in 2018, and we were delighted to create lessons, interactive experiments and discussion about the ocean, sharks and their environment for the class.”
While on board the RV Celtic Explorer, pupils met with the captain and scientists and saw what it might be like to work on a research vessel.
Students spoke with Captain Denis Ronan about the Celtic Explorer, and learn more about the acoustically silent ship that can stay out at sea for up to 35 days.
The pupils were excited to tour the vessel and speak with marine scientists to discover more about shark species, seabed mapping, shipwrecks and the marine environment.
Visiting the dry and wet labs, the pupils saw various fish species from recent surveys and shark species, such as dogfish and the tope shark.
Clár Ní Bhraonáin, teacher at Scoil Shéamais Naofa, said: “It has been an amazing experience … Students don’t forget days like this.”
The Explorers programme offers a range of materials including lesson plans to conduct experiments in class, watching films that helps generate discussion, and peer learning among pupils.
“Because of the students’ enthusiasm to learn more about sharks, we have been able to incorporate marine themes across the curriculum, where they have excelled and produced some incredible work, from writing books about sharks to a series of posters and artwork,” Ní Bhraonáin added.
“This project has really helped myself and the students learn more about the ocean.”
For more information on the Explorers Education outreach centres, visit the Explorers Contacts page at Explorers.ie. The programme is supported by the Marine Institute and is funded under the Marine Research Programme by the Government.
The annual Anglerfish and Megrim Survey has begun off the West South West and South Coasts of Ireland in fulfilment of Ireland’s Common Fisheries Policy obligations.
The purpose of this project is to carry out annual survey for relative annual abundance and distribution of anglerfish and megrim. However, other species of national
importance will also be sampled, along with physical and chemical oceanographic parameters.
IAMS 2019 runs till Monday 25 March. The demersal trawl survey consists of around 110 otter trawls (of 60 minutes each) in ICES areas 7b, 7c, 7g, 7h, 7j and 7k as indicated the map below.
Fishing in 2019 will take place within a three-nautical-mile radius of all positions indicated.
The survey will be conducted by the RV Celtic Explorer (Callsign: EIGB). The vessel will display all appropriate lights and signals during the survey and will also be listening on VHF Channel 16. The vessel will be towing a Jackson demersal trawl during fishing operations.
Commercial fishing and other marine operators are requested to keep a 3nm area around the tow points clear of any gear or apparatus during the survey period. For more details see Marine Notice No 6 of 2019, a PDF of which is available to read or download HERE.