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Marine Institute’s New Microscope Marks Leap Forward For Shellfish Safety

30th April 2018
The Marine Institute’s new scanning electron microscope The Marine Institute’s new scanning electron microscope Photo: Andrew Downes/Xposure

#MarineScience - A newly commissioned scanning electron microscope will bolster Irish shellfish safety efforts, according to the Marine Institute.

As the designated National Reference Laboratory (NRL) for monitoring marine biotoxins — from outbreaks of phytoplankton blooms, for example — in shellfish production areas, the institute carries out a range of seafood safety programmes.

These ensure that Irish seafood products going to national and international markets adhere to the highest food safety standards. 

Joe Silke, manager of the shellfish safety monitoring team, says the new generation of scanning electron microscopes (SEMs) “have been an incredible step forward in microscopic technology. 

“Our new instrument offers unrivalled imaging performance and provides high resolution capabilities necessary to observe tiny features on the surface of single celled toxic algae. Placing such samples in the machine will allow us extremely high magnification of these features and certainly opens up a new world of what we can examine and analyse.”

Some 2,750 phytoplankton and 3,000 shellfish samples are tested annually under the national phytoplankton and biotoxin monitoring programmes. This includes weekly testing of shellfish from all production sites as well as weekly seawater sampling and analysis to detect harmful and toxic species.

“The SEM is therefore vital in providing our teams with the ability to identify phytoplankton cells down to species level, and effectively is essential in helping us expand our services,” Silke added.

The microscope will also expand the broader research capabilities of the Marine Institute, with potential applications to marine biodiscovery. 

This will include “aiding in as yet to be identified novel organisms and their features, as well as in applied aspects of marine environmental research, such as microplastics for which there is significant current interest,” said Dr Jeff Fisher, director of marine environment and food safety at the Marine Institute.

Published in Marine Science
MacDara Conroy

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MacDara Conroy

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MacDara Conroy is a contributor covering all things on the water, from boating and wildlife to science and business

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Marine Science Perhaps it is the work of the Irish research vessel RV Celtic Explorer out in the Atlantic Ocean that best highlights the essential nature of marine research, development and sustainable management, through which Ireland is developing a strong and well-deserved reputation as an emerging centre of excellence. From Wavebob Ocean energy technology to aquaculture to weather buoys and oil exploration these pages document the work of Irish marine science and how Irish scientists have secured prominent roles in many European and international marine science bodies.

 

At A Glance – Ocean Facts

  • 71% of the earth’s surface is covered by the ocean
  • The ocean is responsible for the water cycle, which affects our weather
  • The ocean absorbs 30% of the carbon dioxide added to the atmosphere by human activity
  • The real map of Ireland has a seabed territory ten times the size of its land area
  • The ocean is the support system of our planet.
  • Over half of the oxygen we breathe was produced in the ocean
  • The global market for seaweed is valued at approximately €5.4 billion
  • · Coral reefs are among the oldest ecosystems in the world — at 230 million years
  • 1.9 million people live within 5km of the coast in Ireland
  • Ocean waters hold nearly 20 million tons of gold. If we could mine all of the gold from the ocean, we would have enough to give every person on earth 9lbs of the precious metal!
  • Aquaculture is the fastest growing food sector in the world – Ireland is ranked 7th largest aquaculture producer in the EU
  • The Atlantic Ocean is the second largest ocean in the world, covering 20% of the earth’s surface. Out of all the oceans, the Atlantic Ocean is the saltiest
  • The Pacific Ocean is the largest ocean in the world. It’s bigger than all the continents put together
  • Ireland is surrounded by some of the most productive fishing grounds in Europe, with Irish commercial fish landings worth around €200 million annually
  • 97% of the earth’s water is in the ocean
  • The ocean provides the greatest amount of the world’s protein consumed by humans
  • Plastic affects 700 species in the oceans from plankton to whales.
  • Only 10% of the oceans have been explored.
  • 8 million tonnes of plastic enter the ocean each year, equal to dumping a garbage truck of plastic into the ocean every minute.
  • 12 humans have walked on the moon but only 3 humans have been to the deepest part of the ocean.

(Ref: Marine Institute)

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