The activity of alpha-amylase, glucoamylase, maltase, trehalase, glycogen phosphorylase and trehalose phosphorylase was measured in extracts from larval and adult Hysterothylacium aduncum (Rudolphi, 1802), parasitic nematode of marine fish. The content of glycogen and trehalose in the worm's body was also determined. Both the hydrolytic and phosphorolytic paths of sugar decomposition are presen...

Five specimens of Xiphias gladius Linnaeus, 1758 were sampled from the eastern coast Algeria and examined for their metazoan parasites. Pathological effects collected parasites whole body X. gladius. Four species collected: two monogeneans (Tristoma coccineum Cuvier, 1817; T. integrum Diesing, 1850), one copepod (Pennella instructa (Wilson, 1917)) parasitic nematode (Hysterothylacium aduncum (R...

Hyporthodus niveatus is an appreciated and valuable commercial fish species in the municipality of Niterói, state Rio de Janeiro, Brazil, due its excellent quality flesh. The constant presence helminths abdominal musculature, viscera serosa individuals has been subject complaints among local traders because economic losses to their repugnant aspect. Considering hygienic-sanitary importance sign...

El propósito del estudio fue identificar los endohelmintos de peces nativos Galaxias maculatus y Basilichthys australis en el lago Pullinque, Chile, determinar su prevalencia, intensidad media, abundancia potencial zoonótico, describir taxones nuevos para Chile evaluar potenciales cambios histopatológicos muestras parasitadas intestino B. australis. En G. se reportaron trematodos (Steganoderma ...