SCIENCE IN THE NEWS DAILY
Tiger Shrimp Are Jumbo Threat to Native Species
from San Francisco Chronicle
New Orleans (Associated Press) -- A big increase in reports of Asian tiger shrimp along the U.S. Southeast coast and in the Gulf of Mexico has federal biologists worried the species is encroaching on native species' territory.
The black-and-white-striped shrimp can grow 13 inches long and weigh a quarter-pound, compared to 8 inches and a bit over an ounce for domestic white, brown and pink shrimp. Scientists fear the tigers will bring disease and competition for native shrimp.
Shrimp are all bottom feeders, eating detritus and small animals. Bigger shrimp would eat more and these get so big they also eat small shrimp and fish, marine ecologist James A. Morris said. Reports of tiger shrimp in U.S. waters rose from a few dozen a year - 21 in 2008, 47 in 2009 and 32 in 2010 - to 331 last year, from North Carolina to Texas.
Connect With Us:
PODCASTS: From Balloons to Space Stations: Studying Cosmic Rays
Cosmic rays have mysterious qualities about them that scientists continue to research in order to better understand their origins and composition. Dr. Eun-Suk Seo, a professor of physics at the University of Maryland, and her colleagues, fly enormous balloons as large as a football stadium and a volume of 40-million-cubic feet for extended periods over Antarctica to study particles coming from cosmic rays before they break up in the atmosphere.
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.