Faculty of Fishery and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic.
J Fish Biol. 2014 Aug;85(2):509-15. doi: 10.1111/jfb.12427. Epub 2014 Jun 12.
Higher biomass especially of some aquatic macrophyte species offered a higher density of phytophilous zoobenthos, but did not increase the proportion of non-planktonic to planktonic prey in young-of-the-year perch Perca fluviatilis. Both abundance and biomass of non-planktonic prey dominated over planktonic prey in the pond with lower biomass of aquatic macrophytes and lower food. Survival of P. fluviatilis was lower (20%) in the pond with lower food than in the other pond (34%), however, specific growth rate (1.3% day(-1) ) and final Fulton's condition factor of P. fluviatilis were similar in both ponds.
较高的生物量，特别是某些水生大型植物物种的生物量，为植食性底栖动物提供了更高的密度，但并未增加幼龄鲈鱼（Perca fluviatilis）非浮游生物对浮游生物猎物的比例。在水生大型植物生物量较低且食物较少的池塘中，非浮游生物猎物的丰度和生物量均超过了浮游生物猎物。在食物较少的池塘中，鲈鱼的存活率（20%）低于另一个池塘（34%），然而，两个池塘中鲈鱼的特定生长率（1.3%/天）和最终的福氏营养系数相似。
