Search Results - "Spurgeon, Jonathan J."

Diverse portfolios: Investing in tributaries for restoration of large river fishes in the Anthropocene by Bouska, Kristen L., Healy, Brian D., Moore, Michael J., Dunn, Corey G., Spurgeon, Jonathan J., Paukert, Craig P.

“…Rehabilitation of large Anthropocene rivers requires engagement of diverse stakeholders across a broad range of sociopolitical boundaries. Competing objectives…”
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Uncovering unique plasticity in life history of an endangered centenarian fish by Hamel, Martin J., Spurgeon, Jonathan J., Steffensen, Kirk D., Pegg, Mark A.

“…The ability to adapt to changing environments is fundamental for species persistence. Both plasticity and genetic selection are potential drivers that allow…”
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Juvenile growth of a macrohabitat generalist tied to hydrological character of large‐river system by Spurgeon, Jonathan J., Pegg, Mark A.

“…Summary Characteristics of river hydrology, including components of the natural flow regime, have been used to describe fish growth patterns. Contradictory…”
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Translocation of Humpback Chub into Tributary Streams of the Colorado River: Implications for Conservation of Large-River Fishes by Spurgeon, Jonathan J, Paukert, Craig P, Healy, Brian D, Trammell, Melissa, Speas, Dave, Omana-Smith, Emily

“…The Humpback Chub Gila cypha , a large-bodied, endangered cyprinid endemic to the Colorado River basin, is in decline throughout most of its range due largely…”
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Macroinvertebrate prey availability and food web dynamics of nonnative trout in a Colorado River tributary, Grand Canyon by Whiting, Daniel P., Paukert, Craig P., Healy, Brian D., Spurgeon, Jonathan J.

“…Nonnative fishes have been linked to the decline of native fishes and may affect aquatic food webs through direct and indirect pathways. These concerns have…”
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Can translocated native fishes retain their trophic niche when confronted with a resident invasive? by Spurgeon, Jonathan J, Paukert, Craig P, Healy, Brian D, Kelley, Cheryl A, Whiting, Daniel P

“…Diet interactions between native and non‐native fishes may influence the establishment of native species within their historical range (i.e., reintroduction)…”
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Reservoir Rehabilitations: Seeking the Fountain of Youth by Pegg, Mark A, Pope, Kevin L, Powell, Larkin A, Turek, Kelly C, Spurgeon, Jonathan J, Stewart, Nathaniel T, Hogberg, Nick P, Porath, Mark T

“…Aging of reservoirs alters the functions, and associated services, of these systems through time. The goal of habitat rehabilitation is often to alter the…”
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Using standardized fishery data to inform rehabilitation efforts by Spurgeon, Jonathan J., Stewart, Nathaniel T., Pegg, Mark A., Pope, Kevin L., Porath, Mark T.

“…Lakes and reservoirs progress through an aging process often accelerated by human activities, resulting in degradation or loss of ecosystem services. Resource…”
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Status of Native Stream Fishes within Selected Protected Areas of the Niobrara River in Western Nebraska by Spurgeon, Jonathan J., Stasiak, Richard H., Cunningham, George R., Pope, Kevin L., Pegg, Mark A.

“…Lotic systems within the Great Plains are characterized by highly fluctuating conditions through both space and time. Fishes inhabiting these systems have…”
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Catfish Population Characteristics among River Segments with Altered Fluvial Geomorphic Conditions in the Missouri River, Nebraska, USA by Hamel, Martin J., Spurgeon, Jonathan J., Pegg, Mark A.

“…Alteration of river systems around the world has created novel environments that have been fragmented, homogenized, or transformed from their natural state,…”
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Mixed-origins of channel catfish in a large-river tributary by Spurgeon, Jonathan J., Pegg, Mark A., Halden, Norman M.

“…•Otolith microchemistry suggests fish population mixing in tributary environment.•Multiple source environments may contribute individuals.•Considering…”
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Ecosystem-specific growth responses to climate pattern by a temperate freshwater fish by Spurgeon, Jonathan J., Pegg, Mark A., Pope, Kevin L., Xie, Lin

“…•Growing-degree-days (GDD) increased 60%–74% among freshwater ecosystem-types over 18 years.•Channel catfish growth increased with GDD, but growth rate was…”
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Retention of T‐Bar Anchor Tags for Channel Catfish in the Red River of the North by Spurgeon, Jonathan J., Pegg, Mark A., Siddons, Stephen F., Hansen, Henry H.

“…Tagging fish for mark–recapture studies is a common practice in fisheries science that is used to estimate population parameters. However, biased estimates may…”
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Tag Type and Location‐Dependent Retention Impart Varied Levels of Bias on Mark–Recapture Parameter Estimates by Zentner, Douglas L., Spurgeon, Jonathan J., Lochmann, Steve E., Graham, Christy L.

“…Population parameter estimates from mark–recapture studies are dependent on individuals retaining marks or tags. Therefore, tag retention estimates are needed…”
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The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research by Spurgeon, Jonathan J, Hamel, Martin J, Pope, Kevin L, Pegg, Mark A

“…Age information derived from calcified structures is commonly used to estimate recruitment, growth, and mortality for fish populations. Validation of daily or…”
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