Catch Rates and Cost Effectiveness of Entrapment Gears for Asian Carp: A Comparison of Pound Nets, Hoop Nets, and Fyke Nets in Backwater Lakes of the Illinois River

2015 ◽  
Vol 35 (6) ◽  
pp. 1219-1225 ◽  
Author(s):  
Scott F. Collins ◽  
Steven E. Butler ◽  
Matthew J. Diana ◽  
David H. Wahl
Keyword(s):  
Cost Effectiveness ◽  
Asian Carp ◽  
Illinois River ◽  
Catch Rates ◽  
Fyke Nets

scholarly journals Hydrology controls recruitment of two invasive cyprinids: bigheaded carp reproduction in a navigable large river

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3641 ◽  
Author(s):  
Daniel K. Gibson-Reinemer ◽  
Levi E. Solomon ◽  
Richard M. Pendleton ◽  
John H. Chick ◽  
Andrew F. Casper
Keyword(s):  
Mississippi River ◽  
Silver Carp ◽  
Monitoring Program ◽  
Large River ◽  
Asian Carp ◽  
Bighead Carp ◽  
Illinois River ◽  
Hypophthalmichthys Molitrix ◽  
The Past ◽  
Causative Factors

In the Mississippi River Basin of North America, invasive bigheaded carp (silver carpHypophthalmichthys molitrixand bighead carpH. nobilis, also referred to as Asian carp) have spread rapidly over the past several decades. In the Illinois River, an important tributary of the Upper Mississippi River, reproduction appears to be sporadic and frequently unsuccessful, yet bigheaded carp densities in this river are among the highest recorded on the continent. Understanding the causative factors behind erratic recruitment in this commercially-harvested invasive species is important for both limiting their spread and managing their harvest. We analyzed weekly catch records from 15 years of a standardized monitoring program to document the emergence of age-0 bigheaded carp in relation to environmental conditions. The appearance of age-0 fish was generally linked to hydrographic attributes, which probably serve as a cue for spawning. However, we found profound differences in the number of age-0 fish among years, which varied by as much as five orders of magnitude in successive years. The strong link between summer flooding and age-0 fish production we observed emphasizes the importance of understanding the hydrologic context in which sustained invasions occur. Despite evidence of sporadic recruitment, bigheaded carp populations in the Illinois River appear to be consistent or increasing because of particularly strong, episodic year classes.

Characterization of Western Painted Turtle Bycatch in Fyke Nets During Freshwater Fish Population Assessments

2015 ◽  
Vol 7 (1) ◽  
pp. 222-230 ◽  
Author(s):  
Tyrel S. Moos ◽  
Brian G. Blackwell
Keyword(s):  
Sex Ratio ◽  
Freshwater Fish ◽  
Significant Relationship ◽  
Annual Variation ◽  
Size Structure ◽  
Fish Population ◽  
Painted Turtle ◽  
Nontarget Species ◽  
Catch Rates ◽  
Fyke Nets

Abstract In fisheries management, fish populations are assessed using various net types that invariably also capture nontarget species. Although the bycatch of turtles tends to be a common occurrence, data describing the bycatch of turtles during freshwater fish sampling are lacking. To improve the available knowledge base concerning the bycatch of turtles during fish sampling, we characterize the dynamics of western painted turtle Chrysemys picta bellii bycatch in unbaited modified fyke nets used in fish population sampling in northeastern South Dakota. We collected data from June to September during fish population assessments in 39 lakes and nine impoundments between 2007 and 2012. We characterize western painted turtle bycatch relating to water type (lake and impoundment) including catch rates (number of turtles/net night), size structure, and sex ratio. Catch rates were higher in impoundments than lakes. Total mean annual catch rates ranged from 1.07 to 3.28 for lakes and from 0.70 to 6.63 for impoundments and the variation among years was significant for both water types. We observed no annual variation in water surface area or mean depth, precluding either from explaining the variation in annual catch rates. We observed a significant relationship between mean depth and catch rate for lakes, but not impoundments. We observed no significant relationship relating surface area to catch rate for lakes or impoundments. Catch rates differed significantly from June to September for lakes but not impoundments. Annual variation in catch rates was best explained by the previous winter precipitation for both water types. The sex ratio was skewed toward males and differed significantly from June to September for lakes but not impoundments. The size structure was skewed toward large turtles. Understanding bycatch dynamics during fish population assessments is a critical first step to understanding the impact of biological sampling on nontarget species and may prove useful in minimizing future bycatch of western painted turtles.

scholarly journals Investigation of Freshwater Mussel Glochidia Presence on Asian Carp and Native Fishes of the Illinois River

2016 ◽  
Vol 19 (1) ◽  
pp. 22
Author(s):  
Andrea K. Fritts ◽  
Alison P. Stodola ◽  
Sarah A. Douglass ◽  
Rachel M. Vinsel
Keyword(s):  
Freshwater Mussel ◽  
Asian Carp ◽  
Illinois River ◽  
Native Fishes

scholarly journals Fish distribution, abundance, and behavioral interactions within a large electric dispersal barrier designed to prevent Asian carp movement

2016 ◽  
Vol 73 (7) ◽  
pp. 1060-1071 ◽  
Author(s):  
Aaron D. Parker ◽  
David C. Glover ◽  
Samuel T. Finney ◽  
P. Bradley Rogers ◽  
Jeffrey G. Stewart ◽  
...  
Keyword(s):  
Challenging Behavior ◽  
Silver Carp ◽  
Asian Carp ◽  
Fish Distribution ◽  
Bighead Carp ◽  
Illinois River ◽  
Upstream Migration ◽  
Hypophthalmichthys Molitrix ◽  
Peak Voltage ◽  
Electric Barrier

We evaluated the abundance and behavior of wild fish within the electric barrier system in the Chicago Sanitary and Ship Canal. This electric barrier system serves to prevent the upstream migration of bighead carp (Hypophthalmichthys nobilis) and silver carp (Hypophthalmichthys molitrix) to Lake Michigan from the Illinois River. We found that fish were most abundant below the electric barrier during the summer and fall, were observed near areas of peak voltage, and sometimes persistently challenged the barrier. Fish were relatively scarce within the barrier system during the winter and spring. Fish that were able to penetrate the farthest into the barrier system were smaller and tended to aggregate at the water surface, near the canal walls. The accumulation of fish that we observed below the barrier, and the persistent challenging behavior, raises concerns about breaches any time the barrier is de-energized for maintenance or during intermittent power outages. Entrainment and breach caused by barges traversing the barrier are concerns as well because of the water movements they create and how they alter the electrical field.

Prospects for Fishery-Induced Collapse of Invasive Asian Carp in the Illinois River

Fisheries ◽  
2013 ◽  
Vol 38 (10) ◽  
pp. 445-454 ◽  
Author(s):  
Iyob Tsehaye ◽  
Matthew Catalano ◽  
Greg Sass ◽  
David Glover ◽  
Brian Roth
Keyword(s):  
Asian Carp ◽  
Illinois River

Using reverse-time egg transport analysis for predicting Asian carp spawning grounds in the Illinois River

2018 ◽  
Vol 384 ◽  
pp. 53-62 ◽  
Author(s):  
Zhenduo Zhu ◽  
David T. Soong ◽  
Tatiana Garcia ◽  
Mina Shahed Behrouz ◽  
Steven E. Butler ◽  
...  
Keyword(s):  
Asian Carp ◽  
Illinois River ◽  
Reverse Time ◽  
Spawning Grounds ◽  
Transport Analysis ◽  
Egg Transport

scholarly journals Status, trends, and population demographics of selected sportfish species in the La Grange Reach of the Illinois River

2019 ◽  
Vol 42 ◽  
pp. 2019002 ◽  
Author(s):  
Levi Eric Solomon ◽  
Richard M Pendleton ◽  
Kristopher A Maxson ◽  
Daniel K Gibson-Reinemer ◽  
Cory A Anderson ◽  
...  
Keyword(s):  
Micropterus Salmoides ◽  
Lepomis Macrochirus ◽  
Monitoring Program ◽  
Illinois River ◽  
Population Declines ◽  
Population Demographics ◽  
White Bass ◽  
Management Actions ◽  
Catch Rates

Abstract Sportfish species, specifically Yellow Bass Morone mississippiensis, White Bass Morone chrysops, Largemouth Bass Micropterus salmoides, Bluegill Lepomis macrochirus, Black Crappie Pomoxis nigromaculatus, and White Crappie P. annularis, often drive economically valuable fisheries in large river systems, including the Upper Mississippi River System (UMRS).  Within the Illinois River, part of the UMRS, these species are routinely sampled by an ongoing long-term fisheries monitoring program.  Through this program, we investigated long-term trends (1993-2017) in catch rates and relative weights and quantified demographic rates from 2012-2016. We found all six species, with the exception of Yellow Bass, to have declining catch rates with this decline being most stark in larger, older fishes.  Population demographics for Yellow Bass, White Bass, Bluegill, and Black Crappie suggest populations are dominated by younger individuals, with only Black Crappie regularly living to age 3 and older, which may be driving population declines.  There are many environmental stressors acting on the Illinois River that could be contributing to the lack of older and larger fishes, including, but not limited to, navigation efforts, altered hydrology, pollution, sedimentation, lack of overwintering habitat, and introduction of invasive species.  Results of this study demonstrate that additional research to understand mechanisms driving reduced abundance and stunted age structure are needed to identify effective management actions that would benefit populations of recreationally valuable sportfish species.

scholarly journals Changes in Fish Catch Rates in the Presence of Air Gun Sounds in Prudhoe Bay, Alaska

ARCTIC ◽  
2016 ◽  
Vol 69 (4) ◽  
pp. 346 ◽  
Author(s):  
Bill Streever ◽  
Scott W. Raborn ◽  
Katherine H. Kim ◽  
Anthony D. Hawkins ◽  
Arthur N. Popper
Keyword(s):  
Shallow Water ◽  
Impact Analysis ◽  
Seismic Survey ◽  
Low Frequencies ◽  
Air Gun ◽  
Vector Sensors ◽  
Fish Catch ◽  
Catch Rates ◽  
Prudhoe Bay ◽  
Fyke Nets

Air guns used in oil industry seismic surveys have the capacity to change fish catch rates, but no previous work has demonstrated this effect in shallow water or in Arctic oilfields. Long-term monitoring of fish catches using four fyke nets allowed assessment of changes in catch rates during a 2014 seismic survey in Prudhoe Bay, Alaska. Fyke net locations were instrumented with both conventional hydrophones and vector sensors. Catch rates were generally within the range of those found in 27 previous sampling seasons. The effect of air guns on eight species was assessed using a modified Before-After/Control-Impact analysis, with historical data and 2014 data as the Before-After components of the analysis and days without and with air gun activity as the Control-Impact components. Results showed significant changes associated with air guns in catch rates at one or more nets at p < 0.1 for all eight species and at p < 0.05 for seven of the eight. Changes included both increased and decreased catch rates, perhaps reflecting displacement of fish in response to air gun sounds throughout the study area. Measured sound pressure levels associated with air gun pulses were low and usually undetectable close to the fyke nets, reflecting the loss of low frequencies in shallow water (~1.5 m). Attempts to measure particle velocities failed when wind-driven surface waves overwhelmed vector sensors. However, fish responses may have been related to changes in particle motion associated with air gun sounds.

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