Table 1.

Some economically important fish parasites: Table provides information on mortality and economic loss caused by important parasites of fish. NA: not available, a: mortality, b: economic loss.

Parasite Group	Parasite	Disease	Host	Mortality a/ Economic Loss b	Reference
		Freshwater Endoparasites
Cnidaria	T. bryosalmonae	Proliferative kidney disease	Rainbow trout	95% a	[26]
	M. cerebralis	Whirling disease	Rainbow trout	90% a	[27]
	S. molnari	Sphaerosporosis	Carps	NA	[28]
Platyhelminthes	Bothriocephalus acheilo gnathi	Ulcer, catarrhal enteritis	Carps	100% a	[29]
Freshwater Ectoparasites
Ciliophora	I. multifiliis	White spot	Rainbow trout, Carps	NA	[30]
Arthropoda	Argulus	Argulosis	Indian Major Carps	5.41 million USD b	[31]
Platyhelminthes	Gyrodactylus salaris	Gyrodactylosis	Atlantic salmon	NA	[32]
Marine Endoparasites
Cnidaria	K. thyrsites	Soft flesh syndrome	Salmonids	6 million CAD b	[33]
	C. shashta	Ceratomyxosis	Salmonids	NA	[34]
	E. leei	Enteromyxosis	Sharpsnout seabream	NA	[35]
Ciliophora	Uronema marinum, Philasterides dicentrarchi	Scuticociliatosis	Seabass, Turbot	NA	[36]
Marine Ectoparasites
Ciliophora	C. irritans	White spot	Greater Amberjack	834 USD b	[3]
Arthropoda	Caligus rogercresseyi, Lepeophtheirus salmonis	Sea louse disease	Salmonids	100 million USD b	[37]