2023-11-03 02:00:23

Chunky Jellyfish Population Booms In UK Waters
The Marine Conservation Society (MCS) has released its annual Wildlife Sightings report on World Jellyfish Day. The report focuses on jellyfish and marine turtles in the UK and Ireland, providing insights into changes in ocean biodiversity over time. According to the report, there has been a significant 32% increase in jellyfish sightings compared to the previous year, with an alarming 57% rise in sightings of large blooms.


Barrel jellyfish dominates
The most frequently reported jellyfish species is the barrel jellyfish, accounting for 27% of all sightings. With 467 sightings, it has seen a 21% increase compared to the previous year. The barrel jellyfish, also known as the "dustbin lid jellyfish," can grow up to a meter in size and has a distinctive spherical bell and eight thick, frilled arms.

The role of environmental factors
Dr Peter Richardson, Head of Ocean Recovery at the Marine Conservation Society, explains the variability of jellyfish populations: "Jellyfish populations are highly variable year on year, depending on environmental factors such as sea temperatures and storms. The number of sightings also depends on the awareness of our sightings program and the 'wow factor' of encountering jellyfish."

Marine turtles also spotted
The report also highlights sightings of marine turtles, which feed on jellyfish. Over the past year, there have been 12 reported sightings, including four leatherback turtles. These sightings are crucial for tracking the movements and threats faced by these vulnerable species, enabling the development of effective conservation strategies.

Reporting sightings for marine ecosystem understanding
Justine Millard, Head of Volunteering and Citizen Science at the Marine Conservation Society, emphasizes the importance of public reports: "The data on jellyfish and turtles that volunteers submit plays a vital role in understanding the changes occurring in our marine ecosystems and helps us protect our seas. We urge anyone who spots a jellyfish or turtle to report it to us and contribute to our understanding of the incredible life within our seas."
If you would like to know other articles similar to Increase in Chunky Jellyfish Population in UK Waters updated this year 2025 you can visit the category UK News.
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