HOME >> BIOLOGY >> NEWS
Sea Grant study finds Chinese mitten crabs appear free of human parasite lung flukes

nvasive nuisance species elsewhere. The crabs were first identified in California in 1992, after a shrimp trawler working the South San Francisco Bay hauled up a strange looking crab with fuzzy claws.

However, the crab most likely was introduced to San Francisco South Bay much earlier, in the late 1980s. A hearty and fecund invader, the crab has multiplied to such numbers that it now overruns parts of the bay. In 1998, state workers hauled away about 50 tons worth of mitten crabs that had clogged fish screens at state water pumps near Tracy. Besides clogging fish salvage tanks, mitten crab burrows undermine banks and levees, accelerating erosion and unwanted slumping.

To date, there are no strategies in place for controlling the crab's numbers. Fishers are suggesting that the crab population be culled by opening the mitten crab to commercial fishing, but this is problematic, too.

Dugan said, "The idea is to figure out a way to get rid of the crabs. If you open a fishery, suddenly, they have a value."

Another concern is that parasites could spread like fire in a hayloft through the bay at some later date, because of the sheer number of crabs. Not just people but also raccoons and other animals that feed on mitten crabs could be infected.

Because crayfish are a potential intermediate host for the flukes, the scientists also dissected more than 400 crayfish from the estuary. Like the crabs, all the crayfish appear free of lung flukes.

Despite their findings, the scientists are cautious about concluding that eating the crabs is safe now or in the future.

"Until we finish our survey of the region's snails," Walter said, "we can't assess the risk of future introductions of lung flukes."

The scientists are in the process of analyzing hundreds of freshwater snails from the area to look for evidence of lung flukes. Even if the snails turn up clean, Culver said, there are other major health concerns - such as b
'"/>

Contact: Carrie Culver
c_culver@lifesci.ucsb.edu
805-893-8093
National Sea Grant College Program
14-Nov-2001


Page: 1 2 3

Related biology news :

1. Grant advances biochemical engineering laboratory
2. GlaxoSmithKline Drug Discovery and Development Research Grant Program 2004
3. Grant from GE Foundation to University of Houston to strengthen math, tech pipeline
4. McGill Centre for Intellectual Property Policy receives $3 million SSHRC Grant
5. Grant promotes marine ornamental fish aquaculture
6. Grant of powerful computer to Rutgers-Newark will increase understanding of brain activity
7. Grant renews funding of research toward cloning primates
8. Lipids get the spotlight in new NIGMS Glue Grant
9. Grant funds research to develop tissue-engineered solutions for heart disease
10. Grant strengthens research arm of Penn State Hershey Medical Centers ALS Clinic
11. Sea Grant News & Notes for March 26, 2003

Post Your Comments:
(Date:7/31/2015)... , Kina, 31. juli 2015 Den 10. ... afholdt af BGI fra den 22. - 25. oktober i ... Konferencen fejrer sin 10-års fødselsdag i år. Siden starten ... indflydelsesrige årlige møder på ,omik,-feltet, og er en af ... ICG-10 fokuserer på nylige gennembrud og fremskridt ...
(Date:7/31/2015)... , 31. Juli 2015 Die 10. internationale Konferenz ... BGI veranstaltet und findet vom 22. bis 25. ... , statt. Die Konferenz feiert ... Start 2006 ist die ICG weltweit zu einem ... Sie ist eines der dynamischsten, enthusiastischsten und angenehmsten ...
(Date:7/27/2015)... LOS ANGELES , July 27, 2015 /PRNewswire/ ... providing evidence- and experience-based clinical improvement solutions, today ... coordination solution is now available on Android smartphones ... at inpatient and post-care organizations can use ZynxCarebook ... the same patient,s condition, streamline care transitions to ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3
(Date:8/4/2015)... /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ), a leader ... the quarter ending June 30, 2015. Highlights included: , ... , The final cost of the Sarnia plant ... above the high end of the estimate communicated at ... , The company announced commercial collaborations in two ...
(Date:8/4/2015)... Calif. , Aug. 4, 2015 Trigemina, ... development of non-narcotic, nasally delivered, analgesic drug products, announced ... M.D., to the position of chief medical officer. Dr. ... to Trigemina, much of which has been focused in ... thrilled to add Dr. Kori to our clinical team ...
(Date:8/4/2015)... Mass. , Aug. 4, 2015  Blueprint Medicines ... developing highly selective kinase drugs for genomically defined diseases, ... officer, will present a company overview at the 2015 ... at 1:20 p.m. EDT. A live webcast ... Investors section of the Blueprint Medicines website at ...
(Date:8/4/2015)... , Aug. 4, 2015   California Cryobank Stem ... acquisition of LifeLine Cryogenics, an east coast cord blood ... New York tristate area. LifeLine clients will ... prepaid contracts will be honored. Since 1991, ... offering storage of sperm, eggs, embryos, and cord blood ...
Breaking Biology Technology:BioAmber Reports Second Quarter 2015 Financial Results 2BioAmber Reports Second Quarter 2015 Financial Results 3BioAmber Reports Second Quarter 2015 Financial Results 4BioAmber Reports Second Quarter 2015 Financial Results 5BioAmber Reports Second Quarter 2015 Financial Results 6BioAmber Reports Second Quarter 2015 Financial Results 7BioAmber Reports Second Quarter 2015 Financial Results 8BioAmber Reports Second Quarter 2015 Financial Results 9BioAmber Reports Second Quarter 2015 Financial Results 10BioAmber Reports Second Quarter 2015 Financial Results 11BioAmber Reports Second Quarter 2015 Financial Results 12Trigemina Appoints Dr. Shashi Kori to the Position of Chief Medical Officer 2Trigemina Appoints Dr. Shashi Kori to the Position of Chief Medical Officer 3FamilyCord Announces Acquisition of LifeLine Cryogenics 2
Cached News: