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Displaying items by tag: Whale Sharks

The world’s largest fish may be under threat due to collisions with ships in the oceans, a new study has claimed.

As reported by RTÉ News, researchers in the Global Shark Movement Project set out to identify reasons for a fall in the numbers of whale sharks worldwide.

By tracking their movements, the marine scientists discovered a concerning correlation with global shipping patterns, with multiple hotspots where the sharks may come into contact with cargo ships and tankers as well as passenger vessels and fishing boats.

In their study, published in PNAS, the researchers say that transmission from tagged whale sharks ended in busy shipping lanes more often than expected — suggesting the slow-moving marine wildlife were struck by vessels in these areas.

“It is sad to think that many deaths of these incredible animals have occurred globally due to ships without us even knowing to take preventative measures,” the project’s Professor David Sims said.

RTÉ News has more on the story HERE.

Published in Marine Wildlife
Tagged under

Next Tuesday 13 April the Cork Nature Network hosts a free talk in the impact of microplastics on the marine environment, and specifically on the largest fish in the sea.

During this talk, Dr Alina Wieczorek will be presenting her research — being conducted both in Ireland and the Maldives in the Indian Ocean — on microplastic interactions with whale sharks and basking sharks.

She will also share some first insights into how researchers can use scientific findings to inform society and stakeholders to collaboratively find solutions to address environmental issues such as plastic pollution.

Online attendance for ‘Microplastics a Macro-Disaster: A threat to the largest fish of our seas?’ at 7pm next Tuesday 13 April is free, and registration is open now at Eventbrite.

Published in Sharks

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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