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Click on the Add Layer button to select from a long list of coastal and marine layers to view in the map. Select a layer name to see information about a layer, including metadata and downloadable GIS data if available.
Explore the other tabs for more options.
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 | The common cockle (Cerastoderma edule) is distributed widely in estuaries and sandy bays around the coast of Ireland. Image: Keith Hiscock (published on the MarLIN Web site) | | Cockle Fishing Areas | | | The cockle, a symmetrical rounded shell, which belongs to the Cardiidae family of bivalve mollusks, is a popular type of shellfish in both Eastern and Western cooking, as well as an effective bait for a wide variety of sea fish. Cockles are covered by Bord Iascaigh Mhara’s Shellfish Management Framework which aims for the sustainable exploitation of fishery resources. >> More Information |
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 | Crayfish (Palinurus elephas) can attain a total length of 50-60 cm, and is a much sought after shellfish in cooking. Image: Keith Hiscock (published on the MarLIN Web site). | | Crayfish Fishing Areas | | | Known to fishermen as crayfish, the European spiny lobster is mostly confined to Ireland’s west coast. The crayfish lives in rocky open coastal areas between 5 m and 70 m deep. Crayfish are covered by Bord Iascaigh Mhara’s Shellfish Management Framework which aims for the sustainable exploitation of fishery resources. |
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 | Found on rocky substrates, the common lobster Homarus gammarus is, on average, 50 cm long, but can grow up to one metre! Image: Keith Hiscock (published on the MarLIN Web site). | | Lobster Fishing Areas | | | Considered as a food delicacy around the world, the lobster is one of the most sought-after invertebrates. They have a tough exoskeleton, which protects them, but, like all anthropods, they are still vulnerable to predators during the moulting period . In Ireland, the species was depleted by overfishing a few decades ago but they are now recovering thanks to Bord Iascaigh Mhara’s Shellfish Management Framework which aims for the sustainable exploitation of fishery resources.>> More Information |
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 | The great scallop Pecten maximus has a patchy distribution and is found in shallow depressions on the seabed usually in areas of clean firm sand, fine or sandy gravel but they may occasionally be found on muddy sand. | | Scallop Fishing Areas | | | Well known in French cuisine as “Coquille St. Jacques”, the scallop belongs to the Pectinidae family of bivalve mollusks and can be expensive to buy. They are traditionnaly fished in the southeast of Ireland by dredging the seabed, which can cause damage to seabed flora and fauna. Scallops are covered by Bord Iascaigh Mhara’s Shellfish Management Framework which aims for the sustainable exploitation of fishery resources. >> More Information |
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 | Common prawns, Palaemon serratus, live in groups in crevices and under stones in shallow water areas, sometimes up to 40m deep. They are also found in estuaries and in sea-grass beds. (Image published on the MarLIN Web site) | | Shrimp Fishing Areas | | | Prawn fishing began in southwest Ireland in the 1970s, and has since spread to Waterford, Connemara, Donegal and other areas. The fishing season is now all year round in some places. Because of signs of stock depletion, prawns are covered by Bord Iascaigh Mhara’s Shellfish Management Framework, which aims for the sustainable exploitation of fishery resources.>> More Information |
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 | The common whelk Buccinum undatum is found on the seabed down to depths of 1200 m on muddy sand, gravel and rock substrates. It can grow to up to 10 cm long. (Image published on the MarLIN Web site) | | Whelk Fishing Areas | | | The whelk, a large marine gastropod, is a scavenger and carnivore. Recent fishery regulations impose a minimum size of 50mm shell length in Ireland and 45mm shell length for the rest of the European community on those that may be captured, however it would appear that such regulations are not followed. Whelks are covered by Bord Iascaigh Mhara’s Shellfish Management Framework, which aims for the sustainable exploitation of fishery resources.>> More Information |
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 | Carnivourous and solitary, the brown crab, cancer pagurus, has a life span from 20 to 100 years. Image: Sue Daly (published on the MarLIN Web site) | | Brown Crab Fishing Areas | | | Abundant throughout the northeast Atlantic, the brown crab also known as the Edible Crab is located on mixed coarse grounds, mud and sand in shallow water up to 100 m deep. Brown crabs are covered by Bord Iascaigh Mhara’s Shellfish Management Framework which aims for the sustainable exploitation of fishery resources. >> More Information |
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 | Much of the Irish fishing fleet is made up of small boats, such as these berthed in Letterfrack, Co. Galway. | | Fisheries Conservation Box | | | This conservation area was established as part of the Common Fisheries Policy review in 2003 and replaces the former “Irish Box”. Fishing by non-Irish registered vessels is restricted in this area. |
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 | Even seemingly strong sections of coastline, such as these cliffs on the Dingle Peninsula, are prone to erosion. | | Coastline | | | The coastline of Ireland is a complex environment where land meets sea. Its shape changes over time, influenced by currents, weather, erosion, and human impacts to name a few. |
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 | Sea dunes located 20 nautical miles off the south coast of Co. Wexford are one example of seabed features. | | Bathymetry of Irish Waters: GEBCO Contours | | | The bathymetry around Ireland is diverse, with smooth, shallow sea floor close to the coast, and steep slopes of the continental margin further to the south and west. |
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 | Among details displayed in the OSI / OSNI 1:50,000 Webmap Series are names of channels, such as Bull's Mouth in Blacksod Bay, Co. Mayo. | | Ordnance Survey Basemaps | | | Ordnance Survey of Ireland and Northern Ireland provide base information such as towns, roads, counties and rivers for the Republic and Northern Ireland. In MIDA, the 1:450,000 scale basemap changes to the more detailed 1:50,000 scale basemap as you zoom in to coastal areas. |
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