Feeds

Second jellyfish pack moves on UK

Mauve stingers spotted off Scotland

The next step in data security

A second pack comprising millions of juvenile mauve stinger jellyfish has been spotted off the coast of Scotland, less than a week after an overwhelming attack by Pelagia nocticula killed 100,000 salmon at a Northern Ireland fish farm.

The Marine Conservation Society (MCS) announced on Friday the sighting of massed mauve stingers and compass jellyfish (Chrysaora hysoscella). While the latter are "common in British waters during the summer", as Reuters explains, the former are rarely seen around the UK at any time of year.

Anne Saunders, MCS Scottish projects officer, added: "It is quite unusual for this number of juvenile jellyfish to be occurring in UK waters at this time of year."

The MCS attributed the cause of the mass migration to "wind and tidal factors", and asked fish farm owners and the public to keep a sharp eye out for these abnormal "blooms".

Saunders concluded: "Jellyfish swarms can impact on fish and shellfish farms, and while the conditions causing these current events remain unclear, such swarms may become more prevalent in Scottish waters as a result of climate change."

The mauve stinger is already well-known down in the Med, and has in recent years increasingly forced holidaymakers out of the water and back onto terra firma. The apparent increase in its numbers has been attributed both to global warming - which means the creature does not die off in the winter but breeds all year round - and "decimation" of its natural predators such as loggerhead turtles, sunfish, and trigger fish.

Marine scientist Ricardo Aguilar elaborated to New Scientist back in July: "But it's also just the general reduction in marine vertebrates [by overfishing]. Where vertebrates fall, invertebrates increase."

As NS summarises: "Small fish compete with the jellyfish for food, so fewer fish means less competition." In turn, the burgeoning jellyfish population then eats fish larvae, further threatening fish stocks. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
SCREW YOU, Russia! NASA lobs $6.8bn at Boeing AND SpaceX to run space station taxis
Musk charging nearly half as much as Boeing for crew trips
PORTAL TO ELSEWHERE scried in small galaxy far, far away
Supermassive black hole dominates titchy star formation
Boffins say they've got Lithium batteries the wrong way around
Surprises at the nano-scale mean our ideas about how they charge could be all wrong
Edge Research Lab to tackle chilly LOHAN's final test flight
Our US allies to probe potential Vulture 2 servo freeze
Europe prepares to INVADE comet: Rosetta landing site chosen
No word yet on whether backup site is labelled 'K'
Cracked it - Vulture 2 power podule fires servos for 4 HOURS
Pixhawk avionics juice issue sorted, onwards to Spaceport America
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.