A mark-recapture population estimate for invasive silver carp (Hypophthalmichthys molitrix) in the La Grange Reach, Illinois River

Sass, Greg G.; Cook, Thad R.; Irons, Kevin S.; McClelland, Michael A.; Michaels, Nerissa N.; O'Hara, Timothy M.; Stroub, Matthew R.

doi:10.1007/s10530-009-9462-z

Cited by 115 publications

(105 citation statements)

References 6 publications

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“…The lower Illinois River, which encompasses the La Grange Reach, is known to contain 131 fish species including cyprinids (37 species), catostomids (17), centrarchids (15), and percids (14) in addition to 16 species listed as threatened or endangered by the state of Illinois (Delong 2005). Since 2000, the La Grange Reach contains perhaps the highest densities of Asian carps documented in the Mississippi River Basin and possibly the highest known wild densities (Sass et al 2010). This leads to important implications for ecosystem functioning and presents an invasion risk for the Laurentian Great Lakes (Sass et al 2010).…”

Section: Study Areamentioning

confidence: 99%

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Long-term changes in fish community structure in relation to the establishment of Asian carps in a large floodplain river

et al. 2016

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The Upper Mississippi River System, including the Illinois River, has been invaded by a number of nonnative species including silver carp Hypophthalmichthys molitirx and bighead carp H. nobilis, collectively referred to here as Asian carps. Silver carp densities in the Illinois River have increased dramatically and now represent some of the highest densities of wild silver carp anywhere in the world. Asian carps have the potential to alter existing ecosystems by consuming planktonic resources and therefore, could have the ability to alter existing fish communities as most fishes are dependent on planktonic resources during early development. However, identifying the relationship of fish community structure to the establishment of Asian carps has yet to be thoroughly investigated. Using long-term fish community data collected by the Upper Mississippi River Restoration's Long Term Resource Monitoring element, we investigate changes in fish community structure pre-and post-establishment of Asian carps. Significant differences in the pre-and post-establishment communities were observed for the majority of gears and habitats. Species contributing to changes between establishment periods included most sportfish species and catostomids, which were less abundant post-establishment of Asian carps, while shortnose gar, grass carp, and emerald shiner were more abundant. While our analyses show Asian carps are likely contributing to major differences in fish community structure, future research and long-term monitoring should investigate the mechanisms and interactions responsible for community changes as well as identifying any potential concurrent or confounding factors such as changes in river hydrology or sedimentation.

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Section: Study Areamentioning

confidence: 99%

“…Densities of Asian carps have increased dramatically within the Illinois River since their establishment in 2000 (Irons et al 2007;Sass et al 2010; Online Resource 1). Concurrently, decreases in catch-per-unit effort (CPUE) and body condition of native planktivores (e.g.…”

Section: Introductionmentioning

confidence: 99%

Long-term changes in fish community structure in relation to the establishment of Asian carps in a large floodplain river

et al. 2016

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“…Both species subsequently escaped confinement and established naturally reproducing populations in the Mississippi, Ohio, Missouri, and Illinois rivers (Chick and Pegg 2001). Abundance and biomass of Bighead and Silver carps have increased exponentially in the Illinois River (Sass et al 2010;Irons et al 2011); available evidence indicates that competition resulting from similar diet composition among bigheaded carps and native filter-feeding fishes (Sampson et al 2009) may negatively affect growth and condition of the native species (Schrank et al 2003;Irons et al 2007). The high densities of Bighead and Silver carps in the Illinois River and their capacity for rapid, long-distance movement (Peters et al 2006;DeGrandchamp et al 2008) have led to concerns regarding these species invading the Great Lakes via the artificial Chicago-area waterways that link the Illinois River drainage with Lake Michigan, with potentially serious consequences for Great Lakes food webs and the economically important recreational and commercial fisheries they support (Kolar and Lodge 2002;Cudmore and Mandrak 2011).…”

Section: Introductionmentioning

confidence: 99%

Recruitment sources of invasive Bighead carp (Hypopthalmichthys nobilis) and Silver carp (H. molitrix) inhabiting the Illinois River

Norman

Whitledge

2015

Biol Invasions

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“…Invasive species, including silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis), have become established in the Illinois River (Sass et al 2010) and the Unimpounded (Williamson and Garvey 2005) and Lower Impounded Reaches of the UMR over the past 20 years (Chick and Pegg 2001). Their establishment has impacted native fish communities and food resources (Irons et al 2007, Sass et al 2014, Solomon et al 2016.…”

Section: Fish Communitymentioning

confidence: 99%

Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment

Bouska¹,

Houser²,

Jager³

et al. 2018

E&S

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. 2018. Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment. Ecology and Society 23 (2) ABSTRACT. The Upper Mississippi River System (UMRS) is a large and complex floodplain river ecosystem that spans the jurisdictions of multiple state and federal agencies. In support of ongoing ecosystem restoration and management by this broad partnership, we are undertaking a resilience assessment of the UMRS. We describe the UMRS in the context of an ecological resilience assessment. Our description articulates the temporal and spatial extent of our assessment of the UMRS, the relevant historical context, the valued services provided by the system, and the fundamental controlling variables that determine its structure and function. An important objective of developing the system description was to determine the simplest, adequate conceptual understanding of the UMRS. We conceptualize a simplified UMRS as three interconnected subsystems: lotic channels, lentic off-channel areas, and floodplains. By identifying controlling variables within each subsystem, we have developed a shared understanding of the basic structure and function of the UMRS, which will serve as the basis for ongoing quantitative evaluations of factors that likely contribute to the resilience of the UMRS. As we undertake the subsequent elements of a resilience assessment, we anticipate our improved understanding of interactions, feedbacks, and critical thresholds will assist natural resource managers to better recognize the system's ability to adapt to existing and new stresses.

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A mark-recapture population estimate for invasive silver carp (Hypophthalmichthys molitrix) in the La Grange Reach, Illinois River

Cited by 115 publications

References 6 publications

Long-term changes in fish community structure in relation to the establishment of Asian carps in a large floodplain river

Long-term changes in fish community structure in relation to the establishment of Asian carps in a large floodplain river

Recruitment sources of invasive Bighead carp (Hypopthalmichthys nobilis) and Silver carp (H. molitrix) inhabiting the Illinois River

Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment

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