Assessment of Lentic Burbot Populations in the Big Horn/Wind River Drainage, Wyoming

Krueger, Kirk L.; Hubert, Wayne A.

doi:10.1080/02705060.1997.9663556

Cited by 9 publications

(18 citation statements)

References 19 publications

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“…The rapid invasion of burbot in the GRD is surprising given their declining populations in many portions of their native distribution, including those in eastern Wyoming (Krueger and Hubert, 1997; Stapanian et al., 2010). Mechanisms leading to this rapid invasion have yet to be identified, however altered thermal regimes resulting from impoundment may be facilitating burbot persistence.…”

Section: Discussionmentioning

confidence: 99%

“…Further illegal introductions of burbot are likely given their appeal as a sport and food fish (Krueger and Hubert, 1997). Illegal introduction of sport fish by anglers is a global fisheries management issue, leading to the diversion of valuable agency resources into mitigation programs (Johnson et al., 2009).…”

Section: Discussionmentioning

confidence: 99%

“…In Wyoming, burbot were native to the Tongue, Big Horn and Wind River drainages (Miller, 1970), but were extirpated from the Tongue River drainage by the 1990s (Fig. 1; Krueger and Hubert, 1997). Burbot fisheries were regarded by Wyoming residents as ‘outstanding winter attractions’ and a valuable winter food source through the 1960s, but have since declined in popularity due to declining burbot populations (Bjorn, 1939; Krueger and Hubert, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…1; Krueger and Hubert, 1997). Burbot fisheries were regarded by Wyoming residents as ‘outstanding winter attractions’ and a valuable winter food source through the 1960s, but have since declined in popularity due to declining burbot populations (Bjorn, 1939; Krueger and Hubert, 1997). The status of burbot also varies throughout their range both within and outside of Wyoming.…”

Section: Introductionmentioning

confidence: 99%

“…Many populations are extirpated, endangered or declining. This is due to angler exploitation, habitat fragmentation and alterations to thermal and flow regimes associated with dams (Krueger and Hubert, 1997; Paragamian and Wakkinen, 2008; Stapanian et al., 2010). Currently the burbot is considered a ‘Species of Greatest Conservation Need’ in Wyoming (WGFD, 2005, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Invasion of illegally introduced burbot in the upper Colorado River Basin, USA

Gardunio

Myrick

Ridenour

et al. 2011

Journal of Applied Ichthyology

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Summary Illegally introduced burbot (Lota lota) populations have spread throughout the Green River drainage (GRD) of the upper Colorado River Basin in Wyoming and Utah, USA where they are having adverse effects on native and sport fisheries. We analyzed existing data to evaluate the status of burbot in southwestern Wyoming. Burbot appear to have been illegally introduced into Big Sandy Reservoir in the early‐ to mid‐1990’s, based on capture of burbot in 2003 that included one 16 year old fish and several between 7 and 12 years of age. Burbot began expanding throughout the Green River Drainage in the early 2000s and, with the assistance of a secondary introduction into Fontenelle Reservoir, have successfully invaded most portions of the GRD upstream of the Flaming Gorge Dam. Only one burbot has been captured downstream of Flaming Gorge Reservoir, but this detection indicates potential for downstream establishment in the future. Burbot are difficult to sample, especially in large rivers, so we recommend sampling techniques to monitor the expansion of burbot in lotic and lentic habitats of the upper Colorado River Basin as well as highlight research opportunities associated with this invasion.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Invasion of illegally introduced burbot in the upper Colorado River Basin, USA

Gardunio

Myrick

Ridenour

et al. 2011

Journal of Applied Ichthyology

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Efficacy of Using Data from Angler‐Caught Burbot to Estimate Population Rate Functions

Brauer

Rhea

Walrath

et al. 2018

N American J Fish Manag

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The effective management of a fish population depends on the collection of accurate demographic data from that population. Since demographic data are often expensive and difficult to obtain, developing cost‐effective and efficient collection methods is a high priority. This research evaluates the efficacy of using angler‐supplied data to monitor a nonnative population of Burbot Lota lota. Age and growth estimates were compared between Burbot collected by anglers and those collected in trammel nets from two Wyoming reservoirs. Collection methods produced different length‐frequency distributions, but no difference was observed in age‐frequency distributions. Mean back‐calculated lengths at age revealed that netted Burbot grew faster than angled Burbot in Fontenelle Reservoir. In contrast, angled Burbot grew slightly faster than netted Burbot in Flaming Gorge Reservoir. Von Bertalanffy growth models differed between collection methods, but differences in parameter estimates were minor. Estimates of total annual mortality (A) of Burbot in Fontenelle Reservoir were comparable between angled (A = 35.4%) and netted fish (33.9%); similar results were observed in Flaming Gorge Reservoir for angled (29.3%) and netted fish (30.5%). Beverton–Holt yield‐per‐recruit models were fit using data from both collection methods. Estimated yield differed by less than 15% between data sources and reservoir. Spawning potential ratios indicated that an exploitation rate of 20% would be required to induce recruitment overfishing in either reservoir, regardless of data source. Results of this study suggest that angler‐supplied data are useful for monitoring Burbot population dynamics in Wyoming and may be an option to efficiently monitor other fish populations in North America.

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Population Characteristics and Management of Lentic Populations of Nonnative Burbot in the Green River System, Wyoming

Brauer

Quist

Rhea

et al. 2018

N American J Fish Manag

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Fishes introduced outside of their native distributions have the potential to negatively affect their recipient ecosystems. Since their illegal introduction into the Green River, Wyoming, in the 1990s, Burbot Lota lota have been sampled in lotic and lentic environments throughout the Green River system, where they pose a threat to native fishes and valuable sport fisheries. In response to this invasion, managers of the Green River have begun to explore the efficacy of a suppression effort targeting Burbot. We sought to the describe population dynamics of Burbot in the lentic portions (i.e., reservoirs) of the Green River system in comparison with Burbot population dynamics in lotic areas of the Green River. We also sought to evaluate potential management scenarios for a suppression program. Burbot for this study were collected from Fontenelle and Flaming Gorge reservoirs in October and November 2016. Growth rates of Burbot in the lentic portion of the system were higher than those for fish in the Green River. Total annual mortality rates (A) of Burbot were approximately 10% lower in the reservoirs (33%) than in the Green River. Additionally, lentic Burbot matured earlier than lotic Burbot. An age‐structured population model indicated that Burbot populations were growing rapidly (population growth rate λ = 1.18) in the study reservoirs. Annual exploitation (μ) of juvenile Burbot would need to reach 7%; the μ of mature Burbot would need to increase to 33% or greater (A ≥ 57%) to effectively suppress Burbot in this system. Sensitivity analysis suggested that mortality of age‐1 and age‐2 Burbot had the greatest influence on λ. However, due to difficulties in collecting juvenile Burbot in the Green River system, focusing removal efforts on mature individuals may be the most realistic option for suppressing Burbot populations in this system.

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Assessment of Lentic Burbot Populations in the Big Horn/Wind River Drainage, Wyoming

Cited by 9 publications

References 19 publications

Invasion of illegally introduced burbot in the upper Colorado River Basin, USA

Invasion of illegally introduced burbot in the upper Colorado River Basin, USA

Efficacy of Using Data from Angler‐Caught Burbot to Estimate Population Rate Functions

Population Characteristics and Management of Lentic Populations of Nonnative Burbot in the Green River System, Wyoming

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