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:5/6/2017)... 5, 2017 RAM Group , ... new breakthrough in biometric authentication based on a ... properties to perform biometric authentication. These new sensors are ... created by Ram Group and its partners. This sensor ... supply chains and security. Ram Group is a ...
(Date:4/13/2017)... 13, 2017 UBM,s Advanced Design and Manufacturing ... feature emerging and evolving technology through its 3D Printing ... run alongside the expo portion of the event and ... demonstrations focused on trending topics within 3D printing and ... manufacturing event will take place June 13-15, 2017 at the ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
Breaking Biology News(10 mins):
(Date:10/9/2017)... Jupiter, FL (PRWEB) , ... October 09, 2017 , ... ... episode, scheduled to broadcast first quarter 2018. American Farmer airs Tuesdays at 8:30aET on ... Agriculture industry is faced with the challenge of how to continue to feed a ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... the medical journal, Epilepsia, Brain Sentinel’s SPEAC® System which uses the surface ... detecting generalized tonic-clonic seizures (GTCS) using surface electromyography (sEMG). The prospective multicenter ...
(Date:10/7/2017)...  The 2017 Nobel Prize in Chemistry recognizes ... Joachim Frank and Richard Henderson ... (cryo-EM) have helped to broaden the use ... The winners worked with systems manufactured by Thermo ... resolved, three-dimensional images of protein structures that lead ...
(Date:10/5/2017)... ... 05, 2017 , ... LabRoots , the leading provider of educational and ... giving back to cancer research with a month-long promotion supporting the advancement of breast ... shoppers can use promo code PinkRibbon to get 10 percent off their purchase of ...
Breaking Biology Technology:
Cached News: