Viral hemorrhagic septicemia — (VHS) is a deadly infectious fish disease caused by the Viral hemorrhagic septicemia virus (VHSV, or VHSv). It afflicts over 50 species of freshwaterand marine fish in several parts of the northern hemisphere.… … Wikipedia
trout pest — viral haemorrhagic septicaemia (an acute or chronic disease of salmonids, such as rainbow trout in farm ponds, causing loss of appetite and of schooling behaviour, darkened colour, bleeding, hyaline gills and exophthalmia. It is associated with… … Dictionary of ichthyology
viral haemorrhagic septicaemia — an acute or chronic disease of salmonids, such as rainbow trout in farm ponds, causing loss of appetite and of schooling behaviour, darkened colour, bleeding, hyaline gills and exophthalmia. It is associated with temperature changes and with the… … Dictionary of ichthyology
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
Sphagnum — Taxobox name = Peat moss image width = 240px image caption = a clump of Sphagnum , peat moss regnum = Plantae divisio = Bryophyta classis = Sphagnopsida subclassis = Sphagnidae ordo = Sphagnales familia = Sphagnaceae genus = Sphagnum genus… … Wikipedia