Effects of Static versus Flowing Water on Aquatic Plant Preferences of Triploid Grass Carp

Autor:	Lars W. J. Anderson, Robert T. Pine, Silas S.O. Hung
Rok vydání:	1989
Předmět:	Herbivore biology Myriophyllum Aquatic Science biology.organism_classification Grass carp Agronomy Aquatic plant Botany Cyprinidae Potamogeton Carp Ecology Evolution Behavior and Systematics Potamogeton nodosus
Zdroj:	Transactions of the American Fisheries Society. 118:336-344
ISSN:	1548-8659 0002-8487
DOI:	10.1577/1548-8659(1989)118<0336:eosvfw>2.3.co;2
Popis:	Triploid grass carp Ctenopharyngodon idella were presented with three aquatic plant species (sago pondweed Potamogeton pectinatus, Eurasian watermilfoil Myriophyllum spicatum, and American pondweed P. nodosus) in outdoor canals with static and flowing water in winter, spring, and summer. Plant consumption by triploid grass carp in winter was low but increased dramatically in spring and summer. Based on plant shoot lengths, triploid grass carp preferences in spring for static water were sago pondweed = American pondweed, American pondweed = Eurasian watermilfoil, sago pondweed > Eurasian watermilfoil; for flowing water, sago pondweed = Eurasian watermilfoil > American pondweed. Summer preferences for static water were sago pondweed = Eurasian watermilfoil = American pondweed; for flowing water, sago pondweed = Eurasian watermilfoil = American pondweed. Plants of all three species produced longer shoots in canals with flowing water than with static water. The differences in shoot length may have al...
Databáze:	OpenAIRE
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