Consumption of fresh and decomposed duckweed Spirodela sp. by redclaw crayfish, Cherax quadricarinatus (von Martens)

acuicultura aliment pour animaux alimentation animal aquatique aquaculture aquatic animals aquatic plants aquatic weeds cherax cherax quadricarinatus crayfish decapoda duckweed farine de poisson feed intake feeding feeding preferences feeds fish meal gain de poids ganancia de peso granulos comprimidos harina de pescado invertebrados invertebrates lemnaceae liveweight gain mariscos mauvaise herbe aquatique parastacidae pellet pellets peso piensos plante aquatique poids preferencias alimentarias prise alimentaire (animaux) shellfish spirodela weight weight gain