HOME >> BIOLOGY >> NEWS
USGS Finds Fungus To Be A Cause Of Fish Lesions In Chesapeake

Many of the fish lesions in Chesapeake Bay may be caused by a fungal infection rather than Pfiesteria, a U.S. Geological Survey scientist reported recently at the International Symposium on Aquatic Animal Health Conference in Baltimore. While Pfiesteria remains the primary cause of fish kills in the Chesapeake, North Carolina and other estuaries, a fungus seems to be primarily responsible for lesions in menhaden fish of the Chesapeake Bay.

Vicki Blazer, a fish pathologist at the USGS Leetown Science Center in West Virginia, found fungal infections in 95 percent of the lesioned menhaden sampled from river sites closed by Maryland in 1997 and in 100 percent of the lesioned menhaden sampled from the Pocomoke and Wicomico rivers in August 1998. In early October, USGS scientists will collect additional samples from the Bay.

The fungus, said Blazer, appears to be a pathogenic species of Aphanomyces that has caused identical lesions and fish kills of estuarine and freshwater cultured and wild fishes throughout the Indo-Pacific area, including Japan, Australia, India and Thailand. These fish die-offs in the Indo-Pacific have been occurring since the 1970s in some countries and became a serious recognized problem in the 1980s. In a decade when problems caused by invasive species are becoming increasingly evident, Blazer questions how this fungus may have become established in Chesapeake Bay tributaries and what water-quality factors, including nutrients and dissolved oxygen, may be involved in such disease outbreaks.

In the Chesapeake Bay fishes that Blazer examined, the fungal organism and the surrounding sore often extended deep into the fishes muscle under intact normal skin. "In numerous fishes," Blazer said, "the fungal organism had actually penetrated to and through organs such as the liver. Future research will help determine if large numbers of migrating menhaden with open skin sores -- such as those caused by the fungal infection
'"/>

Contact: Catherine Haecker
catherine_haecker@usgs.gov
(703) 648-4283
United States Geological Survey
30-Sep-1998


Page: 1 2 3

Related biology news :

1. Very-Low-Fat Diet May Compromise Immune Function, Increase Infection Risk In Trained Runners, UB Study Finds
2. USGS Finds Palila Population Remaining Stable
3. Breast Milk Of Women Who Eat Lake Ontario Fish Contains High Levels Of PCBs, UB Study Finds
4. UB Study Finds No Relationship Between Male Consumption Of Lake Ontario Fish And Conception Delay
5. Botanical Products Act Like Estrogen In Animals, Finds University Of Pittsburgh Team
6. Study Of Childrens Fillings Finds No Mercury Exposure
7. USGS Finds That Mysterious Arkansas Bald Eagle Disease Has Spread To Ducks In Eastern States
8. Study Finds Choline Deficiency Harms Memory Center In Mammals Brains
9. AIDS Virus May Evolve Differently In Cerebrospinal Fluid Compared With Blood In Some Patients, UCSF/Gladstone Research Finds
10. Nationwide Study Finds HIV-Positive Women Are At High Risk For Cervical Human Papillomavirus Infection
11. Study Finds Protein Clues To Early Embryo Development

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/29/2017)... 2017  higi, the health IT company that operates ... America , today announced a Series B investment ... EveryMove. The new investment and acquisition accelerates higi,s strategy ... transform population health activities through the collection and workflow ... higi collects and secures data today on behalf of ...
(Date:3/24/2017)... Research and Markets has announced the addition of the "Global ... to 2025" report to their offering. ... The Global Biometric Vehicle Access System Market ... the next decade to reach approximately $1,580 million by 2025. ... for all the given segments on global as well as regional ...
(Date:3/22/2017)... , March 21, 2017 ... Cloud used by retailers such as 1-800-Flowers and ... platform — Product Recommendations and Replenishment. Using Optimove,s machine ... more personalized product and replenishment recommendations to their ... also on predictions of customer intent drawn from ...
Breaking Biology News(10 mins):
(Date:7/13/2017)... ... July 13, 2017 , ... Heritage Biologics is proud ... the independent leader in promoting healthcare quality through accreditation, certification and measurement. By ... improved processes and better patient outcomes. , “Achieving URAC accreditation is a ...
(Date:7/13/2017)... , ... July 13, 2017 , ... ... two spectrophotometer calibration standards. Blast forward seven years and now they are ... holmium oxide for wavelength accuracy, and resolution testing. , ...
(Date:7/13/2017)... Philadelphia, PA (PRWEB) , ... July 13, 2017 ... ... and business acceleration programs at Philadelphia’s University City Science Center, Christopher Laing, MRCVS, ... innovation zone in Austin, Texas. Dr. Laing will become the first Executive ...
(Date:7/13/2017)... ... ... Microscan , the number-one brand of embedded clinical barcode readers and leading ... platform for barcode reading and machine vision, LVS label verification, and print ... place on August 1–3 in San Diego, CA. , MicroHAWK barcode readers ...
Breaking Biology Technology:
Cached News: