The importance of flooded terrestrial habitats for larval fish in a semi-natural large floodplain (Volga, Russian Federation)

River habitat homogenisation enhances trophic competition and promotes individual specialisation among young of the year fish

“…Pinder, & Leach, 1997;Pinder, 2001). Habitat diversity afforded by lateral connections and low mainstream regulation could improve fish recruitment by offering nursery habitat for a larger number of species, and potentially a wider diversity of food sources (Keckeis, Winkler, Flore, Reckendorfer, & Schiemer, 1997;Konrad et al, 2016;Nagayama & Nakamura, 2018;Reckendorder et al, 2001;Schiemer, Spindler, Wintersberger, Schneider, & Chovanec, 1991). In the Great Ouse River, the recruitment of numerous species decreased and many cyprinid fish became locally extinct due to the river regulation and habitat homogenisation (Copp, 1997).…”

“…This may be related to the later reproduction of other fish species as tench Tinca tinca , common carp Cyprinus carpio, minnow Phoxinus phoxinus, barbel Barbus barbus , or common bream Abramis brama , which compensated mortality of the early spawning species as roach and chub (Bass, Pinder, & Leach, ; Pinder, ). Habitat diversity afforded by lateral connections and low mainstream regulation could improve fish recruitment by offering nursery habitat for a larger number of species, and potentially a wider diversity of food sources (Keckeis, Winkler, Flore, Reckendorfer, & Schiemer, ; Konrad et al., ; Nagayama & Nakamura, ; Reckendorder et al., ; Schiemer, Spindler, Wintersberger, Schneider, & Chovanec, ). In the Great Ouse River, the recruitment of numerous species decreased and many cyprinid fish became locally extinct due to the river regulation and habitat homogenisation (Copp, ).…”

Surviving Invasion: Regaining Native Fish Resilience Following Fish Invasions in a Modified Floodplain Landscape

“…These attributes facilitate rapid colonization of floodplain habitats when opportunities allow (Garrett‐Walker et al., 2020; Hicks et al., 2010; Wu et al., 2013). Phytophilic cyprinids such as common carp and goldfish preferentially spawn on flooded vegetation (Kottelat & Freyhof, 2002), and following spring floods in September and October their larvae dominate fish assemblages in inundated habitats where densities are orders of magnitude higher compared to main channel habitats or lake outflows (Górski et al., 2016; Wu et al., 2013). Brown bullhead juveniles are often associated with macrophyte beds in floodplain lakes and wetlands (Hicks et al., 2010), while live‐bearing gambusia reach high abundances in shallow‐water, lentic habitats, lake margins and shallow floodplain ponds (Garrett‐Walker et al., 2020; Pyke, 2008; Wu et al., 2013).…”

Will fencing floodplain and riverine wetlands from feral pig damage conserve fish community values?

“…However, after peak flood connection, aquatic organisms occupying these wetlands face a moving land‐water margin until connection is broken, at which point wetlands have been shown to support a nonrandom assortment of aquatic species, including fish (Arrington & Winemiller, 2006 ; Pander et al., 2018 ). The duration, timing and frequency that off channel wetlands maintain lateral pulse connection with primary rivers is an important determining factor in broader contribution to coastal fisheries production—higher floodplain connection results in more fish production is the overwhelming conclusion (Bennett & Kozak, 2016 ; Galib et al., 2018 ; Górski et al., 2016 ; Hurd et al., 2016 ). In addition to connection, environmental conditions become important on floodplains, including water quality (Waltham & Schaffer, 2018 ), but also access to shelter to escape predation and available food resources (Blanchette et al., 2014 ; Jardine et al., 2012 ).…”