caa a22 4500 606228357 CHVBK 20210128101203.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10641-014-0283-2 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0283-2 Synergy between silver carp egestion and benthic fishes [Elektronische Daten] [Kasey Yallaly, Justin Seibert, Quinton Phelps] Many studies have shown that negative interactions exist between the invasive silver carp Hypophthalmichthys molitrix and the associated native fish community. The primary negative effect relates to the filter feeding capacity of Asian carp and thus dietary overlap and decreased fitness of native planktivorous fishes. However, from a nutrient transfer perspective, an alternative feedback loop may exist between invasive Asian carps and native fishes. We postulate that silver carp consuming small planktonic particles with low assimilation efficiency can subsequently egest larger, nutrient rich fecal pellets consumable by other fauna, which may have otherwise been unavailable. To evaluate this feedback loop, we extracted fecal pellets from the hindgut of silver carp. Fecal pellets were fed to age-0 channel catfish Ictalurus punctatus and blue catfish Ictalurus furcatus (i.e., < 130mm) in a controlled laboratory setting. Both species of catfish consumed the fecal pellets and subsequently survived and increased in body mass (i.e., weight) over the 20-day trial period. These results suggest that a potential alternative feedback loop may exist between silver carp and members of the benthic community and therefore provide a pathway by which nutrients are translocated between habitats (i.e., pelagia to benthos). We suggest that undigested plankton consumed by silver carp can be converted into nutrient packed pellets and may provide an additional food source to benthic organisms such as age-0 channel catfish and age-0 blue catfish. Springer Science+Business Media Dordrecht, 2014 Fecal pellets nationallicence Silver carp nationallicence Catfish nationallicence Nutrient translocation nationallicence Coprophagy nationallicence Yallaly Kasey Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut Seibert Justin Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut Phelps Quinton Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut Environmental Biology of Fishes Springer Netherlands 98/2(2015-02-01), 511-516 0378-1909 98:2<511 2015 98 10641 https://doi.org/10.1007/s10641-014-0283-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0283-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yallaly Kasey Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut NATIONALLICENCE 700 1- Seibert Justin Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut NATIONALLICENCE 700 1- Phelps Quinton Big Rivers and Wetlands Field Station, Missouri Department of Conservation, 3815 East Jackson Boulevard, 63755, Jackson, MO, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/2(2015-02-01), 511-516 0378-1909 98:2<511 2015 98 10641