Gut contents of silver carp, Hypophthalmichthys molitrix, and the disruption of a centric diatom, Cyclotella, on passage through the esophagus and intestine

Biomanipulation in mesocosms using silver carp in two Chinese lakes with distinct trophic states

“…Radke and Kahl (2002) determined that silver carp are unable to reduce total phytoplankton biomass due to the increasing number of phytoplankton less than 30 μm in the system. As reported in Starling (1993) and a previous study executed in Lake Erhai (Wan, 2015), we hypothesize that after the introduction of the filter feeding silver carp, the zooplankton community may have declined rapidly under heavy grazing pressure from the fish, thereby promoting the proliferation of inedible pico-phytoplankton (0.2-2 μm), which are much smaller (less than 10 μm) than the fish's gill raker clefts (Domaizon and Dévaux, 1999;Xie, 1999).…”

Dynamics of microcystins-LR and -RR in the phytoplanktivorous silver carp in a sub-chronic toxicity experiment

“…This fish is adapted to an efficient filter-feeding mode mainly on phytoplankton (Xie, 1999(Xie, , 2001). Thus, it should not be astonished to see an evolutionary development of a stronger resistance to MC in silver carp, but not in rainbow trout that are native to relatively cold and oligotrophic habitats, feeding mainly on zooplankton and zoobenthos.…”

In situ study on the control of toxic Microcystis blooms using phytoplanktivorous fish in the subtropical Lake Taihu of China: A large fish pen experiment

“…Fore-gut contents were collected from the proximate end of the intestine to the middle of the first loop. Food in this part of the intestine was considered to be little digested since this part usually comprises less than 1/12 of the total intestine length (Xie, 1999). Individual samples of gut contents were fixed in Lugol's iodine for a few minutes, and then preserved in 10% formaldehyde solution.…”