NDLI: Influence of biogenic metals (Cu, Zn) on the activity of carbohydrases in juvenile fish in vitro

Content Provider	Springer Nature Link
Author	Golovava, I. L.
Copyright Year	2010
Abstract	It was revealed that intestine and whole-body amylolytic activity (AA) in juvenile fish serving as potential feeding items for piscivores significantly decreases in the presence of Cu and Zn ions within a wide range (0.1–25 mg/l) of concentrations in vitro. In most of the studied fish species, Cu and Zn decrease the activities of carbohydrases in the intestine mucosa stronger than in the whole-body. On the other hand, in piscivore-facultative benthivore perch, which have the least AA, the inhibiting effect of Cu and Zn ions is 1.5 to 2 times higher in the whole body than in the intestine. The study data suggest that Cu and Zn ions at concentrations found in organisms that serve as fish food may not only reduce the rate of initial stages of carbohydrates hydrolysis in the juvenile fish intestine, but also considerably decrease the potential contribution of the food objects to the digestion processes in typical and facultative piscivores.
Starting Page	90
Ending Page	95
Page Count	6
File Format	PDF
ISSN	19950829
Journal	Inland Water Biology
Volume Number	3
Issue Number	1
e-ISSN	19950837
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-03-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	fish digestion carbohydrases heavy metals copper zinc Geoecology/Natural Processes Biodiversity Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics

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