Lethal Parasite Prime Suspect In Fish Kills At Salton Sea

Investigators seeking causes of recurrent massive die-offs of fish and water birds at California's Salton Sea may have identified a principal culprit, according to Dr. Milton Friend, director of the National Wildlife Health Center.

The finding comes as a new die-off of tilapia, the predominant fish species in the Salton Sea, has been reported with more than one million dead fish over a three-mile stretch at the north end of the Sea, Department of the Interior officials said.

Drs. Tonie Rocke and Lynn Creekmore, scientists from the US Geological Survey's National Wildlife Health Center (Madison, Wis.), conducted a field investigation in late August that focused on collecting sick or freshly dead fish from locations where most of the bird mortality was occurring. In collaboration with NWHC studies, Dr. Jan Landsberg, a research scientist in aquatic health at the Florida Department of Environmental Protection, examined gills from 23 fish collected at the Salton Sea for parasites. She found 22 to be infested with moderate to high levels of a lethal parasite of warm-water marine fish.

The parasite, a dinoflagellate known as Amyloodinium ocellatum, is recognized as a persistent disease-causing agent that causes serious mortalities in fish-farming facilities and public or home marine aquaria. Under closed conditions, such as aquaria and apparently also in the Salton Sea, the investigators reported, parasite levels can build up to extremely high levels in fish. Healthy fish in aquaria can die after only 12 hours of exposure to Amyloodinium.

Like other USGS science centers, the National Wildlife Health Center has a primary responsibility for assisting the public land managers of the Interior Department. "Because a national wildlife refuge occupies a signific

Contact: Duncan Morrow
United States Geological Survey

Page: 1 2 3

Related biology news :

1. Protein Misfolding, Not Mutant Gene, Key To Lethal Sleep Disorder
2. New Evidence Shows How Some Flu Viruses Become Lethal
3. Parasites enzyme structure helps address a public health issue
4. Parasites mediate plant invasions
5. Parasites prevent ants from protecting coffee plants
6. Parasite, mosquito genomes complete malaria picture
7. Parasite or partner? Study suggests new role for junk DNA
8. Parasite offers natural way to control leaf-eating slugs
9. Parasites sperm-encryption keeps species apart
10. Parasites, Not Pollution, Responsible For Some Frog Deformities, As Reported In The 30 April Issue Of Science
11. Genetic Code Of Chromosome Of Malaria Parasite Deciphered

Post Your Comments:

(Date:11/14/2019)... ... November 13, 2019 , ... NDA Partners Chairman Carl ... affairs and program management executive with more than 33 years of regulatory and ... firm as an Expert Consultant. , Robert Peterson has extensive experience in ...
(Date:11/12/2019)... ... 12, 2019 , ... The Arnold and Mabel Beckman Foundation ... institutions for its Instrumentation Grant for Advanced Light-Sheet Microscopy and Data Science ... for the acquisition of instrumentation, development and maintenance; support for data science collaborations ...
(Date:11/7/2019)... ... , ... R3 Stem Cell is now offering its comprehensive Online Stem ... to use during checkout is FIFTYOFF and applies to both the one month access ... therapies with over 12,000 successful stem cell procedures performed nationwide. A couple years ago, ...
Breaking Biology News(10 mins):
(Date:11/12/2019)... ... November 12, 2019 , ... ... software solutions for biopharmaceutical R&D, today announced that Immatics Biotechnologies , ... Genedata Biologics® to streamline their R&D operations related to the ...
(Date:11/9/2019)... ... November 08, 2019 , ... ... pathology research, today announced the results of analyses examining the severity of ... phase 3 selonsertib studies (STELLAR). Strong correlations were demonstrated between AI-powered and ...
(Date:11/5/2019)... ... November 05, 2019 , ... Focal Healthcare ... Mark for its Fusion Bx 2.0 prostate fusion biopsy solution. By combining information ... Bx 2.0 will give urologists across Europe the ability to perform targeted transrectal ...
(Date:11/2/2019)... ... October 31, 2019 , ... drug360 graph, ... pioneer tellic. drug360 brings tellic’s expertise in biomedical language processing and machine ... quickly uncover relationships between genes, diseases, variants, phenotypes, and other biomedical entities. ...
Breaking Biology Technology:
Cached News: