SCIENCE IN THE NEWS DAILY
Warning Over Deep-Ocean Stowaways
from BBC News Online
Care must be taken not to spread deep-sea creatures around the world during exploration of the remote ocean floor. Scientists using the famous Alvin sub say the vehicle picked up limpets from a depth of almost 3,000m and inadvertently transferred them alive to another location more than 600km away.
It is surprising because the animals had to cope with huge pressure changes as Alvin conducted its dives. The researchers report the event in the journal Conservation Biology.
Spreading organisms artificially beyond their range in this way could have damaging effects on marine ecosystems, they warn, either by introducing competitors or even disease. The team urges other deep-sea explorers to exercise extreme caution, and to assume hardy stowaways could be hanging on to their vehicles.
Connect With Us:
Slideshow: Fire’s Weird Behavior in Space
In the microgravity environment of outer space, flames burn very differently than they do on Earth... (click the link above to read more).
To view all multimedia content, click "Latest Multimedia."
Receive notification when new content is posted from the entire website, or choose from the customized feeds available.