Science & Technology in Action

10th Edition

Managing our Marine Resources


Agricultural Science
With an estimated 80% of species in EU waters being overfished it is essential that our fisheries work in a sustainable manner to ensure that our marine resources are kept in good health for future generations. In order to do this a detailed understanding of marine ecology is required.
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Lesson excerpt

Importance of fishing to the Irish economy
Ireland’s commercial fishing industry, covering coastal waters, estuaries, spawning areas and open ocean, is worth around €1 billion per year, the bulk of which is exported — mostly to the EU. It employs around 11 000 people directly in areas such as fishing, fish farming, processing and marketing. Ireland lands over 40 species of high quality seafoods including salmon, whitefish, shell fish and pelagic species.

In addition to this, angling tourism is reckoned to be worth a further €0.75 billion annually and employs 10,000 people, mainly in rural Ireland. 

Ireland is unusual in that its marine resources cover about ten times the land area and are governed by the rules and regulations of the EU’s Common
Fisheries Policy (2012). With an estimated 80% of species in EU waters being overfished, it is essential that our fisheries work in a sustainable manner to ensure that our unique resources are kept in good health for future generations. To do this we need to understand the complex interactions that occur in our seas and waterways which requires a detailed knowledge of the ecology of these areas is required. The impact of human activities on these relationships also needs to be studied in detail. Please see the Fisheries Management Map 2014


True or False?

  1. Eels cannot live in salt water. false
  2. Fishing nets catch turtles and dolphins. true
  3. Natural gas from the Atlantic is piped ashore in Ireland. true
  4. Trawling never damages the marine environment. false
  5. Invasive species such as the Zebra mussel are good for Irish ecosystems. false
  6. The use of biodegradable nets is good for the environment. true
  7. Ghost fishing only happens during the night. false
  8. All fish caught from 2015 onwards will have to be landed. true
  9. Our knowledge of the marine ecosystem can be improved by keeping records of all fish caught and landed. true
  10. At least 40 species of high value fish are landed in Ireland. true