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Following the first and second legs in February and March, the third leg of this year’s Irish Anglerfish and Megrim Survey (IAMS 2024) is being carried out from Friday 12 to Sunday 21 April.

Surveys will be conducted to the North and North-West Coasts of Ireland by the Marine Institute in fulfilment of Ireland’s obligations under the Common Fisheries Policy (CFP).

Leg 3 is a demersal trawl survey consisting of approximately 50 otter trawls, each of 60 minutes duration, in ICES area 6a. Fishing in 2024 will take place within a three-nautical-mile radius of the positions indicated in Appendices 1 and 2 of Marine Notice No 12 of 2024, a PDF of which is attached below.

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 Jackson demersal trawl during fishing operations.

The Marine Institute requests that commercial fishing and other marine operators keep a 3nm radius area around the tow points clear of any gear or apparatus during the survey period.

Further details are included in the Marine Notice below.

Published in Fishing

The first and second legs of this year’s Irish Anglerfish and Megrim Survey (IAMS 2024) will be carried out from Thursday 8 February to Sunday 3 March.

Surveys will be conducted to the West, South-West and South Coasts of Ireland by the Marine Institute in fulfilment of Ireland’s obligations under the Common Fisheries Policy (CFP).

IAMS is a demersal trawl survey consisting of approximately 110 otter trawls, each of 60 minutes duration, in ICES areas 7b, 7c, 7g, 7h, 7j and 7k.

Fishing in 2024 will take place within a three-nautical-mile radius of the positions indicated in Appendices 1 and 2 of Marine Notice No 03 of 2024, a PDF of which is attached below.

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 Jackson demersal trawl during fishing operations.

The Marine Institute requests that commercial fishing and other marine operators keep a 3nm radius area around the tow points clear of any gear or apparatus during the survey period.

Further details are included in the Marine Notice below.

Published in Fishing

The annual Irish Groundfish Survey (IGFS) for 2023 will be carried out by the Marine Institute off the North West, West and South Coasts of Ireland from Tuesday 31 October to Saturday 16 December.

The IGFS is a demersal trawl survey consisting of approximately 170 fishing hauls of 30-minute duration each in ICES areas VIa, VIIb, VIIg and VIIj.

Fishing will take place within a two-nautical-mile radius of the positions indicated in the appendices to Marine Notice No 68 of 2023, which can be downloaded below.

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 two-nautical-mile area around the tow mid-points clear of any gear or apparatus during the survey period outlined above.

Further details can be found in the Marine Notice attached below.

Published in Fishing

The Department of Transport has been advised by Sustainable Energy Authority Ireland (SEAI) that the Marine Institute will undertake site investigation survey works at the Atlantic Marine Energy Test Site (AMETS) in Co Mayo.

The survey is expected to be completed over a 10-day period from Sunday 17 September, subject to weather and operational constraints.

Geophysical and geotechnical survey work and benthic sampling will be carried out at Test Area A, 16km from Belderra Strand, and Test Area B, 6km from Belderra Strand on the Erris Peninsula. Benthic sampling will be carried out along the proposed cable corridor at AMETS.

The survey vessel RV Celtic Explorer (callsign EIGB) will carry out the site investigation works. Throughout operations, the vessel will be displaying appropriate lights and shapes, and will also be restricted in its ability to manoeuvre.

Other vessels operating in the AMETS area are requested to give the survey vessel a wide berth during survey operations. Mariners are also advised to keep continuous watch on VHF Channel 16 when navigating the survey area at AMETS.

Coordinates and a map of the survey areas as well as contact details can be found in Marine Notice No 55 of 2023, attached below.

Published in Power From the Sea

Surface ocean carbon dioxide observations from Irish waters collected by the Marine Institute’s RV Celtic Explorer have been published in the 2023 version of the Surface Ocean CO2 Atlas (SOCAT).

With over 42 million surface ocean CO2 measurements from across the globe, SOCAT is a key dataset for quantifying the evolving ocean uptake and sink for CO2.

This data provides scientists, climate researchers and international policy makers with essential information on ocean carbon dioxide measurements. And such observations are essential to understand current and project future climate change as well as for monitoring changes in ocean chemistry and predicting the impacts of these changes.

Atmospheric carbon dioxide concentrations continue to rise rapidly and currently are at about 420 parts per million (ppm), up from 280ppm in preindustrial times.

The current atmospheric level would be significantly higher, and climate change even more pronounced, but for our global ocean absorbing about a quarter of CO2 emissions from human activities each year.

There is, however, a cost: Absorbing additional CO2 increases the acidity of seawater. This process is known as ocean acidification, and it may have dramatic consequences for marine life, as detailed in a recent assessment by OSPAR.

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. The impacts of ocean acidification and warming could also extend up the food chain, affecting fisheries and aquaculture, threatening food security for millions of people.

Evin McGovern at the Marine Institute, who was co-convenor of the international expert group that produced the OSPAR Ocean Acidification assessment said: “High-quality measurements of surface ocean carbon dioxide are needed for a better understanding of the impact of ocean-atmosphere interactions on 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.”

Ocean and atmospheric CO2 measurements have been collected on the RV Celtic Explorer since 2017. This year Ireland joined the Integrated Carbon Observing Station (ICOS), a European Infrastructure network supporting standardised high-precision carbon flux measurements between atmosphere, land and the ocean, and the RV Celtic Explorer was adopted as an ICOS Ocean “station”.

In Ireland, marine CO2 measurements are also collected at fixed stations and additional CO2 observing capacity will be available on the new national research vessel, the RV Tom Crean, extending the coverage.

Published in Marine Science

MERC Environmental Consultants Ltd and the Marine Institute are undertaking site investigation survey works at the Atlantic Marine Energy Test Site in Co Mayo.

The surveys are expected to be completed over a three-day period during the nearest available weather window which opened last Thursday 2 March, subject to weather and operational constraints.

Survey works include a benthic survey as well as geotechnical and geophysical surveys.

The survey campaign will be undertaken within the proposed Atlantic Marine Energy Test Site, consisting of two separate areas. Test Site A is 16km from Belderra Strand, and Test Site B is 6km from Belderra Strand on the Erris Peninsula.

The benthic survey work will be conducted by the Dúlra na Mara (callsign EIFS6) a shallow draft survey vessel. Meanwhile the survey vessel RV Celtic Explorer (callsign EIGB) will carry out geophysical and geotechnical site investigation works offshore at Test Site A and Test Site B and along the proposed cable corridor.

During operations the work vessels will be restricted in their ability to manoeuvre. All other vessels are requested to leave a wide berth during the deployment operations.

The survey operations will be conducted during daylight hours only. Mariners are advised to keep continuous watch on VHF Channel 16 when navigating the survey area at the Atlantic Marine Energy Test Site.

For maps, coordinates, safety information and contact details, see Marine Notice No 10 of 2023 attached below.

Published in Power From the Sea

The first and second legs of this year’s Irish Anglerfish and Megrim Survey (IAMS 2023) will be carried out from Saturday 11 February to Tuesday 7 March.

Surveys will be conducted to the West, Southwest and South Coasts of Ireland by the Marine Institute in fulfilment of Ireland’s obligations under the Common Fisheries Policy (CFP).

IAMS is a demersal trawl survey consisting of approximately 110 otter trawls, each of 60 minutes duration, in ICES areas 7b, 7c, 7g, 7h, 7j and 7k.

Fishing in 2023 will take place within a three-nautical-mile radius of the positions indicated in Appendices 1 and 2 of Marine Notice No 02 of 2023, a PDF of which is attached below.

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 Jackson demersal trawl during fishing operations.

The Marine Institute requests that commercial fishing and other marine operators keep a 3nm radius area around the tow points clear of any gear or apparatus during the survey period.

Further details are included in the Marine Notice below.

Published in Fishing

The annual Irish Groundfish Survey (IGFS) for 2022 will be carried out by the Marine Institute off the North West, West and South Coasts of Ireland from next Monday 31 October to Friday 16 December.

The IGFS is a demersal trawl survey consisting of approximately 170 fishing hauls of 30-minute duration each in ICES areas VIa, VIIb, VIIg and VIIj.

Fishing will take place within a two-nautical-mile radius of the positions indicated in the appendices to Marine Notice No 73 of 2022, which can be downloaded below.

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 two-nautical-mile area around the tow mid-points clear of any gear or apparatus during the survey period outlined above.

Further details can be found in the Marine Notice attached below.

Published in Fishing

The third leg of this year’s Irish Anglerfish and Megrim Survey (IAMS 2022) will be carried out from Wednesday 13 to Friday 22 April.

Following this month’s surveys off the West, Southwest and South coasts, as previously reported on Afloat.ie, leg three will be conducted to the North and North West coast of Ireland by the Marine Institute in fulfilment of Ireland’s Common Fisheries Policy (CFP) obligations.

The demersal trawl survey will consist of some 50 otter trawls each of 60 minutes’ duration in ICES area 6.a, conducted by the RV Celtic Explorer (callsign EIGB).

The vessel will be towing a Jackson demersal trawl during fishing operations and will display appropriate light and signals.

Maps and coordinates of the survey area can be found in Marine Notice No 12 of 2022, attached below.

Published in News Update

Fisheries research undertaken by Marine Institute scientists features in a new short documentary from Europe's leading international news channel.

Produced by Euronews, ‘Where’s the catch? The fishery surveys keeping our seas sustainable’ follows the RV Celtic Explorer during the annual Irish Groundfish Survey (IGFS), which most recently took place from October to December 2021.

This six-week fisheries survey in Ireland’s Atlantic shelf takes place each year, with the survey passing through 170 points on the nautical chart.

The IGFS assesses commercially exploited fish stocks, such as haddock and whiting. The survey provides an index of the share of young fish in the stock, which in turn gives an indication of its spawning success.

In the video, David Stokes of the Marine Institute, and chief scientist on the IGFS, explains the sampling processes and the survey’s importance, while scientists Jennifer Doyle and Sinead O’Brien discuss what data is collected in the research vessel’s laboratory.

This Irish survey is one of many conducted in a coordinated way along the northern and western coasts of the European continent. The data collected from all surveys is compiled and analysed by the International Council for the Exploration of the Seas (ICES).

Dr Ciaran Kelly, director of fisheries, ecosystems and advisory services at the Marine Institute, said: “We are delighted for our work to be featured in this Euronews documentary, as Marine Institute scientists play a key role in carrying out assessments and developing the scientific evidence and advice at ICES.

“The important scientific work undertaken by our scientists is essential for supporting a sustainable ocean economy, as well as protecting and managing our marine ecosystems.”

The video is part of the monthly ‘Ocean’ series produced by Euronews and the European Commission, which is broadcast in nine languages and available in 160 countries.

Published in Marine Science
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Sharks in Irish waters

Irish waters are home to 71 species of shark, skates and rays, 58 of which have been studied in detail and listed on the Ireland Red List of Cartilaginous fish. Irish sharks range from small Sleeper sharks, Dogfish and Catsharks, to larger species like Frilled, Mackerel and Cow sharks, all the way to the second largest shark in the world, the Basking shark. 

Irish waters provide a refuge for an array of shark species. Tralee Bay, Co. Kerry provides a habitat for several rare and endangered sharks and their relatives, including the migratory tope shark, angel shark and undulate ray. This area is also the last European refuge for the extremely rare white skate. Through a European Maritime and Fisheries Fund (EMFF) project, Marine Institute scientists have been working with fishermen to assess the distribution, diversity, and monthly relative abundance of skates and rays in Tralee, Brandon and Dingle Bays.

“These areas off the southwest coast of Ireland are important internationally as they hold some of the last remaining refuges for angel shark and white skate,” said Dr Maurice Clarke of the Marine Institute. “This EMFF project has provided data confirming the critically endangered status of some species and provides up-to-date information for the development of fishery measures to eliminate by-catch.” 

Irish waters are also home to the Black Mouthed Catshark, Galeus melastomus, one of Ireland’s smallest shark species which can be found in the deep sea along the continental shelf. In 2018, Irish scientists discovered a very rare shark-nursery 200 nautical miles off the west coast by the Marine Institute’s ROV Holland 1 on a shelf sloping to 750 metres deep. 

There are two ways that sharks are born, either as live young or from egg casings. In the ‘case’ of Black Mouthed Catsharks, the nursery discovered in 2018, was notable by the abundance of egg casings or ‘mermaid’s purses’. Many sharks, rays and skate lay eggs, the cases of which often wash ashore. If you find an egg casing along the seashore, take a photo for Purse Search Ireland, a citizen science project focusing on monitoring the shark, ray and skate species around Ireland.

Another species also found by Irish scientists using the ROV Holland 1 in 2018 was a very rare type of dogfish, the Sail Fin Rough Shark, Oxynotus paradoxus. These sharks are named after their long fins which resemble the trailing sails of a boat, and live in the deep sea in waters up to 750m deep. Like all sharks, skates and rays, they have no bones. Their skeleton is composed of cartilage, much like what our noses and ears are made from! This material is much more flexible and lighter than bone which is perfect for these animals living without the weight of gravity.

Throughout history sharks have been portrayed as the monsters of the sea, a concept that science is continuously debunking. Basking sharks were named in 1765 as Cetorhinus maximus, roughly translated to the ‘big-nosed sea monster’. Basking sharks are filter feeders, often swimming with their mouths agape, they filter plankton from the water.

They are very slow moving and like to bask in the sun in shallow water and are often seen in Irish waters around Spring and early Summer. To help understand the migration of these animals to be better able to understand and conserve these species, the Irish Basking Shark Group have tagged and mapped their travels.

Remarkably, many sharks like the Angel Shark, Squatina squatina have the ability to sense electricity. They do this via small pores in their skin called the ‘Ampullae of Lorenzini’ which are able to detect the tiny electrical impulses of a fish breathing, moving or even its heartbeat from distances of over a kilometre! Angel sharks, often referred to as Monkfish have a distinctively angelic shape, with flattened, large fins appearing like the wings of an angel. They live on the seafloor in the coastal waters of Ireland and much like a cat are nocturnal, primarily active at night.

The intricate complexity of shark adaptations is particularly noticeable in the texture of their skin. Composed of miniscule, perfectly shaped overlapping scales, the skin of shark provides them with protection. Often shark scales have been compared to teeth due to their hard enamel structure. They are strong, but also due to their intricate shape, these scales reduce drag and allow water to glide past them so that the shark can swim more effortlessly and silently. This natural flawless design has been used as inspiration for new neoprene fabric designs to help swimmers glide through the water. Although all sharks have this feature, the Leafscale Gulper Shark, Centrophorus squamosus, found in Ireland are specifically named due to the ornate leaf-shape of their scales.