Reports on progress and results for sportfish enhancement; harvest, regulations, and tournaments;... more Reports on progress and results for sportfish enhancement; harvest, regulations, and tournaments; habitat restoration; recruitment of sportfish; and sportfish sampling efficiency.Illinois Department of Natural Resources, Division of Fisheriesunpublishednot peer reviewedOpe
The cumulative harvest pressure exerted by recreational anglers can be intense in some locations.... more The cumulative harvest pressure exerted by recreational anglers can be intense in some locations. Sustainable management and conservation of inland fisheries requires an understanding of the spatial ecology of fish-angler interactions (e.g., direct, indirect, and feedback). Advancement towards this goal requires study of the complex interdependencies of human and natural systems, which can be achieved, in part, by looking beyond the wetted confines of individual waterbodies towards the broader angling landscape. It has been hypothesized that fish stocks should experience strong reductions in areas near large aggregations of recreational anglers where fishing effort is presumed to be greatest. To test this hypothesis, we examined a complex of direct, indirect, and feedback effects among recreational anglers, bluegill sunfish Lepomis macrochirus, and largemouth bass Micropterous salmoides across inland recreational fisheries (n = 29 reservoirs) using path analysis and structural equat...
David Soong: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Tatiana ... more David Soong: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Tatiana Garcia: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] James Duncker, U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Zhenduo Zhu, University at Buffalo, Buffalo, New York, [email protected] Steven Butler, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected] Matthew Diana, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected] David Wahl, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected]
Muskellunge Esox masquinongy management programs often rely on stocking to create and maintain po... more Muskellunge Esox masquinongy management programs often rely on stocking to create and maintain populations. In many instances, a native and nearby stocking source is unavailable or a genetically suitable brood source is unclear. Genetic differences among stocks of Muskellunge may influence survival and growth when introduced into novel environments. Consequently, the selection of a suitable brood source can be difficult and possibly critical to the success of Muskellunge stocking programs. We examined differences in long-term survival and growth among introduced Muskellunge stocks from the Ohio and upper Mississippi River drainages and a mixed-origin Illinois broodstock population in three Illinois reservoirs. Catch per unit effort (CPUE) from spring modified-fyke netting suggested that the upper Mississippi River drainage stock at ages 3 and 4 persisted at lower relative abundance compared to conspecifics; however, low lake-and stockspecific catches of older ages precluded robust CPUE comparisons among stocks. Apparent survival, estimated from mark-recapture data with the Cormack-Jolly-Seber open population model, differed among stocks I-year poststocking, with the upper Mississippi River drainage stock exhibiting markedly lower survival compared to conspecifics. Annual variation in survival to age 1.5 was related to water temperature at stocking, fish size at stocking, first winter temperatures, and first summer temperatures. However, survival did not differ among stocks for Muskellunge age 2 and older, indicating that important factors structuring long-term survival exert their effects most strongly in the first year poststocking. Despite overall low survival of Muskellunge from the upper Mississippi River drainage, males that survived exhibited a slight growth advantage compared to conspecifics. No growth advantage was observed for upper Mississippi River drainage stock females. Our findings suggest that stock selection in addition to environmental conditions can influence survival of introduced Muskellunge and subsequent contribution to the fishery.
Effective management and monitoring programs require confidence regarding basic biological sampli... more Effective management and monitoring programs require confidence regarding basic biological sampling. Gear comparisons are often required to determine the most effective techniques. Such is the case for populations of invasive Asian carps Hypophthalmichthys spp., which have recently occurred in large numbers throughout sections of the Mississippi River basin. We tested five gears (mini-fyke nets, beach seine, purse seine, pulsed-DC electrofishing, and gill net) that targeted juvenile (age 0) Silver Carp H. molitrix at sites along the Illinois River during 2014 and 2015 to determine the most effective ones for age-0 Silver Carp. We considered the most cost-effective gear to be the one that provided the largest catch at a minimal expenditure of labor. Mini-fyke nets were the most effective at collecting large numbers of age-0 Silver Carp, followed in decreasing order by beach seines, pulsed-DC electrofishing, purse seines, and gill nets. The smallest Silver Carp were caught in beach seines and the largest were caught in gill nets, and there was considerable variation in size distributions among gears. However, when we considered cost-effectiveness in terms of labor hours for each gear, both beach seines and mini-fyke nets had similar and overlapping labor expenditures. Gill nets and purse seines were not cost-effective, as they required more labor and had lower overall catch rates.
North American Journal of Fisheries Management, 2006
... Champaign, Illinois 61820, USA MATTHEW J. DIANA Kaskaskia Biological Station, Center for Aqua... more ... Champaign, Illinois 61820, USA MATTHEW J. DIANA Kaskaskia Biological Station, Center for Aquatic Ecology and Conservation, Illinois Natural History Survey, Rural Route 1, Box 157, Sullivan, Illinois 61951, USA DAVID P. PHILIPP ...
North American Journal of Fisheries Management, 2012
ABSTRACT The popularity of tournament angling for largemouth bass Micropterus salmoides remains h... more ABSTRACT The popularity of tournament angling for largemouth bass Micropterus salmoides remains high, leading to concerns about the effects on populations. Catch-and-release angling and its effects on nest abandonment have been well documented, but few studies have examined the effects of competitive angling on nest abandonment. Nest-guarding male largemouth bass were subjected to one of three treatments: no angling (controls), catch-and-release angling, and simulated tournament angling. Abandonment rates were assessed at 24 h following angling. Both angling treatments experienced higher abandonment rates than the control group (3%) with tournament-angled males abandoning their nests at a higher rate (90%) than catch-and-release males (33%). Additional research will be required to determine the population-level consequences of these angling practices. Until then, a conservative recommendation would be for organizers to consider alternative tournament formats during the reproductive season for largemouth bass.Received November 30, 2011; accepted May 9, 2012
Gizzard shad Dorosoma cepedianum are a common omnivorous species that comprise significant biomas... more Gizzard shad Dorosoma cepedianum are a common omnivorous species that comprise significant biomass in lakes and reservoirs throughout the US By feeding on detritus, they can alter environmental conditions by increasing sedimentation and nutrient cycling in the water column, and their effects on zooplankton have been well-documented. To examine the effects of gizzard shad on benthic macroinvertebrates, we sampled 28 lakes in Illinois over a 13 year period (204 lake-years): 13 lakes with and 13 without gizzard shad, and two lakes ...
Monitoring ichthyoplankton is useful for identifying reproductive fronts and spawning locations o... more Monitoring ichthyoplankton is useful for identifying reproductive fronts and spawning locations of bigheaded carps (Hypophthalmichthys spp.). Unfortunately, sorting and identifying ichthyoplankton to monitor for bigheaded carp reproduction is time consuming and expensive. Traditional methods require frequent egg-larvae sampling, sorting of all samples to obtain presumptively identified bigheaded carp, and genetic validation of presumptively identified eggs. Quantitative PCR (qPCR) has the potential to streamline this process by identifying samples that likely do or do not contain a target species. Our objective was to develop a genetic screening tool using
Reports on progress and results for sportfish enhancement; harvest, regulations, and tournaments;... more Reports on progress and results for sportfish enhancement; harvest, regulations, and tournaments; habitat restoration; recruitment of sportfish; and sportfish sampling efficiency.Illinois Department of Natural Resources, Division of Fisheriesunpublishednot peer reviewedOpe
The cumulative harvest pressure exerted by recreational anglers can be intense in some locations.... more The cumulative harvest pressure exerted by recreational anglers can be intense in some locations. Sustainable management and conservation of inland fisheries requires an understanding of the spatial ecology of fish-angler interactions (e.g., direct, indirect, and feedback). Advancement towards this goal requires study of the complex interdependencies of human and natural systems, which can be achieved, in part, by looking beyond the wetted confines of individual waterbodies towards the broader angling landscape. It has been hypothesized that fish stocks should experience strong reductions in areas near large aggregations of recreational anglers where fishing effort is presumed to be greatest. To test this hypothesis, we examined a complex of direct, indirect, and feedback effects among recreational anglers, bluegill sunfish Lepomis macrochirus, and largemouth bass Micropterous salmoides across inland recreational fisheries (n = 29 reservoirs) using path analysis and structural equat...
David Soong: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Tatiana ... more David Soong: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Tatiana Garcia: U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] James Duncker, U.S. Geological Survey, Illinois-Iowa Water Science Center, [email protected] Zhenduo Zhu, University at Buffalo, Buffalo, New York, [email protected] Steven Butler, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected] Matthew Diana, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected] David Wahl, Illinois Natural History Survey, Kaskaskia Biological Station, [email protected]
Muskellunge Esox masquinongy management programs often rely on stocking to create and maintain po... more Muskellunge Esox masquinongy management programs often rely on stocking to create and maintain populations. In many instances, a native and nearby stocking source is unavailable or a genetically suitable brood source is unclear. Genetic differences among stocks of Muskellunge may influence survival and growth when introduced into novel environments. Consequently, the selection of a suitable brood source can be difficult and possibly critical to the success of Muskellunge stocking programs. We examined differences in long-term survival and growth among introduced Muskellunge stocks from the Ohio and upper Mississippi River drainages and a mixed-origin Illinois broodstock population in three Illinois reservoirs. Catch per unit effort (CPUE) from spring modified-fyke netting suggested that the upper Mississippi River drainage stock at ages 3 and 4 persisted at lower relative abundance compared to conspecifics; however, low lake-and stockspecific catches of older ages precluded robust CPUE comparisons among stocks. Apparent survival, estimated from mark-recapture data with the Cormack-Jolly-Seber open population model, differed among stocks I-year poststocking, with the upper Mississippi River drainage stock exhibiting markedly lower survival compared to conspecifics. Annual variation in survival to age 1.5 was related to water temperature at stocking, fish size at stocking, first winter temperatures, and first summer temperatures. However, survival did not differ among stocks for Muskellunge age 2 and older, indicating that important factors structuring long-term survival exert their effects most strongly in the first year poststocking. Despite overall low survival of Muskellunge from the upper Mississippi River drainage, males that survived exhibited a slight growth advantage compared to conspecifics. No growth advantage was observed for upper Mississippi River drainage stock females. Our findings suggest that stock selection in addition to environmental conditions can influence survival of introduced Muskellunge and subsequent contribution to the fishery.
Effective management and monitoring programs require confidence regarding basic biological sampli... more Effective management and monitoring programs require confidence regarding basic biological sampling. Gear comparisons are often required to determine the most effective techniques. Such is the case for populations of invasive Asian carps Hypophthalmichthys spp., which have recently occurred in large numbers throughout sections of the Mississippi River basin. We tested five gears (mini-fyke nets, beach seine, purse seine, pulsed-DC electrofishing, and gill net) that targeted juvenile (age 0) Silver Carp H. molitrix at sites along the Illinois River during 2014 and 2015 to determine the most effective ones for age-0 Silver Carp. We considered the most cost-effective gear to be the one that provided the largest catch at a minimal expenditure of labor. Mini-fyke nets were the most effective at collecting large numbers of age-0 Silver Carp, followed in decreasing order by beach seines, pulsed-DC electrofishing, purse seines, and gill nets. The smallest Silver Carp were caught in beach seines and the largest were caught in gill nets, and there was considerable variation in size distributions among gears. However, when we considered cost-effectiveness in terms of labor hours for each gear, both beach seines and mini-fyke nets had similar and overlapping labor expenditures. Gill nets and purse seines were not cost-effective, as they required more labor and had lower overall catch rates.
North American Journal of Fisheries Management, 2006
... Champaign, Illinois 61820, USA MATTHEW J. DIANA Kaskaskia Biological Station, Center for Aqua... more ... Champaign, Illinois 61820, USA MATTHEW J. DIANA Kaskaskia Biological Station, Center for Aquatic Ecology and Conservation, Illinois Natural History Survey, Rural Route 1, Box 157, Sullivan, Illinois 61951, USA DAVID P. PHILIPP ...
North American Journal of Fisheries Management, 2012
ABSTRACT The popularity of tournament angling for largemouth bass Micropterus salmoides remains h... more ABSTRACT The popularity of tournament angling for largemouth bass Micropterus salmoides remains high, leading to concerns about the effects on populations. Catch-and-release angling and its effects on nest abandonment have been well documented, but few studies have examined the effects of competitive angling on nest abandonment. Nest-guarding male largemouth bass were subjected to one of three treatments: no angling (controls), catch-and-release angling, and simulated tournament angling. Abandonment rates were assessed at 24 h following angling. Both angling treatments experienced higher abandonment rates than the control group (3%) with tournament-angled males abandoning their nests at a higher rate (90%) than catch-and-release males (33%). Additional research will be required to determine the population-level consequences of these angling practices. Until then, a conservative recommendation would be for organizers to consider alternative tournament formats during the reproductive season for largemouth bass.Received November 30, 2011; accepted May 9, 2012
Gizzard shad Dorosoma cepedianum are a common omnivorous species that comprise significant biomas... more Gizzard shad Dorosoma cepedianum are a common omnivorous species that comprise significant biomass in lakes and reservoirs throughout the US By feeding on detritus, they can alter environmental conditions by increasing sedimentation and nutrient cycling in the water column, and their effects on zooplankton have been well-documented. To examine the effects of gizzard shad on benthic macroinvertebrates, we sampled 28 lakes in Illinois over a 13 year period (204 lake-years): 13 lakes with and 13 without gizzard shad, and two lakes ...
Monitoring ichthyoplankton is useful for identifying reproductive fronts and spawning locations o... more Monitoring ichthyoplankton is useful for identifying reproductive fronts and spawning locations of bigheaded carps (Hypophthalmichthys spp.). Unfortunately, sorting and identifying ichthyoplankton to monitor for bigheaded carp reproduction is time consuming and expensive. Traditional methods require frequent egg-larvae sampling, sorting of all samples to obtain presumptively identified bigheaded carp, and genetic validation of presumptively identified eggs. Quantitative PCR (qPCR) has the potential to streamline this process by identifying samples that likely do or do not contain a target species. Our objective was to develop a genetic screening tool using
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