Details

Autor(en) / Beteiligte

• GROOCOCK, G. H
• GETCHELL, R. G
• WOOSTER, G. A
• BRITT, K. L
• BATTS, W. N
• WINTON, J. R
• CASEY, R. N
• CASEY, J. W
• BOWSER, P. R

Titel

Detection of viral hemorrhagic septicemia in round gobies in New York State (USA) waters of Lake Ontario and the St. Lawrence River

Ist Teil von

• Diseases of aquatic organisms, 2007-07, Vol.76 (3), p.187-192

Ort / Verlag

Oldendorf: Inter-Research

Erscheinungsjahr

2007

Quelle

MEDLINE

Beschreibungen/Notizen

• In May 2006 a large mortality of several thousand round gobies Neogobius melanostomus (Pallas, 1814) occurred in New York waters of the St. Lawrence River and Lake Ontario. Necropsies of sampled fish from these areas showed pallor of the liver and gills, and hemorrhagic areas in many organs. Histopathologic examination of affected tissues revealed areas of necrosis and hemorrhage. Inoculations of fathead minnow Pimephales promelas (Rafinesque, 1820) cell cultures with dilutions of tissue samples from the necropsied gobies produced a cytopathic effect within 5 d post-inoculation. Samples of cell culture supernatant were tested using RT-PCR and confirmed the presence of viral hemorrhagic septicemia virus (VHSV). Sequence analysis of the VHSV isolate resulted in its assignment to the type-IVb subgroup. The detection of VHSV in a relatively recent invasive fish species in the Great Lakes and the potential impact of VHSV on the ecology and economy of the area will require further investigation and careful management considerations.