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A comparison of tag retention and mortality from two tagging methods for internal tag placement in Channel Catfish N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-09 Travis C. Durhack, Holly A. Simpson, Douglas A. Watkinson, Mark A. Pegg, Eva C. Enders
ObjectiveDocumenting the movement of Channel Catfish Ictalurus punctatus through telemetry, where a transmitter tag is surgically implanted in the fish, can provide valuable insight into the species' spatial ecology and habitat use. However, since fish in the order Siluriformes can expel foreign objects such as tags from their body cavity, the utility of telemetry technology may be limited for Channel
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Live‐bait industry as a pathway for movement of nonnative and invasive species: Implications for conservation of native Texas fishes N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-05 Erin Shepta, Joshuah Perkin, Kevin B. Mayes, Monica E. McGarrity, Christopher M. Schalk, Carmen G. Montaña
ObjectiveLive‐bait species are widely used in recreational fishing throughout the United States. However, the use of invasive fish species as live bait has been identified as a common pathway for their introduction into aquatic ecosystems. We assessed the role that the live‐bait industry has in facilitating the introduction of nonnative and invasive species into Texas rivers. We focused on two invasive
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Effects of poor recruitment on riverine Smallmouth Bass population dynamics N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-05 Brandon Keplinger, Christopher T. Rota
ObjectiveAltered flow regimes pose significant risks to the stability of populations of riverine Smallmouth Bass Micropterus dolomieu. Periods of poor recruitment, due to early life stage mortality resulting from high‐flow events, can cause size‐structure and density alterations of populations. The aim of this study was to opportunistically test for changes in dynamic rates of a riverine Smallmouth
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Comparisons of donor stray percentages between hatchery‐ and natural‐origin Chinook Salmon and steelhead in the upper Columbia watershed N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-04 Todd N. Pearsons, Rolland R. O'Connor
ObjectiveArtificial propagation of Pacific salmon Oncorhynchus spp. is commonly used to achieve conservation and harvest goals. However, unintended effects of artificial propagation, such as high donor stray percentages, can reduce numbers of adults that return to target areas and also contribute spawners to different populations where they are undesirable. Until recently, it was difficult to assess
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Estimating predation rates of stocked juvenile Chinook Salmon using novel acoustic predation transmitters N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-04 D. A. Gravenhof, M. R. Wuellner, E. A. Renner, M. J. Fincel
ObjectiveAcoustic telemetry is a tool commonly used to better understand the fates of fish following a stocking event. Until recently, predation on stocked fish could only be inferred by observing and identifying abrupt changes in tag detection histories. Recently, a novel predation transmitter has provided better insight into how predation affects poststocking survival. The main objective of this
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Acoustic telemetry tracking of Coho Salmon smolts released from a community‐run hatchery into a marine inlet reveals low early ocean survival N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-03-04 Adam M. Kanigan, Scott G. Hinch, Andrew G. Lotto, Kamil Szlachta, Stephen D. Johnston, Stephanie A. Lingard
ObjectiveHatcheries are used to help supplement populations of Pacific salmon Oncorhynchus spp. for conservation and fisheries purposes and to provide stewardship opportunities. In British Columbia, small community‐run hatcheries typically focus on the latter and generally do not know the efficacy of their release approaches, unlike larger production hatcheries.MethodsWe used acoustic telemetry to
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Estimating internal transmitter and external tag retention by Walleye in the Laurentian Great Lakes over multiple years N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-02-15 S. F. Colborne, M. D. Faust, T. O. Brenden, T. A. Hayden, J. M. Robinson, T. M. MacDougall, H. A. Cook, D. A. Isermann, D. J. Dembkowski, M. Haffley, C. S. Vandergoot
Both electronic tags (e.g., acoustic and radio transmitters) and conventional external tags are used to evaluate movement and population dynamics of fish. External tags are also sometimes used to facilitate the recovery of internal electronic tags or other instrumentation because healing can make it difficult to identify fish with internal tags based on appearance alone. With both tag types, tag shedding
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Forensic geochemistry identifies the illegal introduction of Walleye into Lake Cascade, Idaho N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-02-14 George Whitman, Jordan Messner, Rachel C. Johnson, Malte Willmes, Brian P. Kennedy, Carson Jeffres
The illegal introduction of fish species can disrupt ecosystems, collapse food webs, and undermine recreational fishing opportunities. Determining whether introduced fish are locally reproducing is important for resource managers. Here, we used the geochemical analysis of otoliths to investigate the potential illegal introduction of a Walleye Sander vitreus caught in 2022, in Lake Cascade, Idaho. Lake
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Precision of four calcified structures for age estimation of Black Carp N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-02-05 P. T. Kroboth, A. M. Herndon, C. L. Broaddus, J. R. Fischer
Black Carp Mylopharyngodon piceus is an emerging invasive species in North America with an expanding population in the Mississippi River basin. Current aging methods use a suite of structures for age estimation, and a single structure is needed to minimize processing time, to maximize consistency of age and growth measurements, and to allow for back-calculation of individual fish length at age.
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Population genomics of coastal Pacific Hake N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-02-05 Gary C. Longo, Melissa A. Head, Sandy L. Parker-Stetter, Ian G. Taylor, Vanessa J. Tuttle, Alicia A. Billings, Stéphane Gauthier, Michelle M. McClure, Krista M. Nichols
Understanding the genetic structure of harvested fishery species is crucial for accurate stock assessments and effective management strategies. There have been several rangewide population genetic analyses of Pacific Hake Merluccius productus; however, a thorough focus on the heavily harvested coastal stock off the west coast of North America is missing. Recent observations of spatial–temporal variability
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Do live-well additives influence the physiological and behavioral recovery of Largemouth Bass? N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-30 Luc LaRochelle, Laura Haniford, Declan Burton, John F. Bieber, Jessica A. Robichaud, Cory D. Suski, Andy J. Danylchuk, Steven J. Cooke
There is an ongoing effort to enhance the welfare and survival of black bass Micropterus spp. released after angling tournaments. Live-well additives are substances added to live-well water that are intended to help fish recover during retention. Aside from claims made by manufacturers, little information is available on the additives' effectiveness for recovery or their potential welfare consequences
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Fishery management strategies for Red Snapper in the southeastern U.S. Atlantic: A spatial population model to compare approaches N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-20 Kyle Shertzer, Scott Crosson, Erik Williams, Jie Cao, Rick DeVictor, Chris Dumas, Geneviève Nesslage
Red Snapper Lutjanus campechanus is an iconic species in the southeast U.S. Atlantic Ocean, sought by both commercial and recreational fleets. Five stock assessments over the past quarter century have shown Red Snapper to be experiencing overfishing. Highly restricted landings since 2010 have been insufficient to end overfishing because fishing effort is not species specific but rather applies generally
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Assessing electrofishing effort required to estimate species richness of fishes in nonwadeable rivers of Alabama, USA N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-20 Steven M. Sammons, Jason E. Dattilo, Steven J. Rider
Much of the fish biodiversity in the southeastern USA is found in lotic systems, but assessment of fish community structure in large nonwadeable rivers has lagged compared to streams. Sampling designs that adequately estimate species richness are a prerequisite to creating bioassessment metrics but thus far has not been attempted in highly biodiverse rivers in the southeastern USA east of the Mississippi
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Bringing partners together: A symposium on native lampreys and the Pacific Lamprey Conservation Initiative N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-15 Theresa L. Liedtke, Julianne E. Harris, Christina J. Wang, Trent M. Sutton
CONFLICT OF INTEREST STATEMENT The authors declare they have no conflict of interest.
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Encounter rates and catch-and-release mortality of steelhead in the Snake River basin N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-13 William J. Lubenau, Timothy R. Johnson, Brett J. Bowersox, Timothy Copeland, Joshua L. McCormick, Michael C. Quist
The potential influence (i.e., impact rate) of catch-and-release fisheries on wild steelhead Oncorhynchus mykiss is poorly understood and is a function of the abundance of wild fish, how many fish are encountered by anglers (i.e., encounter rate), and the mortality of fish that are caught and released. In Idaho, estimates of wild steelhead encounter rates have been derived using the number of wild
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Weirs: An effective tool to reduce hatchery–wild interactions on the spawning grounds? N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-13 Jeremy T. Wilson, Thomas W. Buehrens
Hatchery-produced salmon and steelhead Oncorhynchus mykiss mitigate for habitat loss and support valuable commercial, recreational, and tribal fisheries. However, excessive interactions between hatchery and wild fish can also cause harm to wild populations. Weirs have been implemented as a management tool to remove returning hatchery-origin Chinook Salmon O. tshawytcha adults to reduce the proportion
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Male guarding behavior and brood predators of invasive Bluegill in a Japanese lake N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2024-01-12 Miles I. Peterson, Satoshi Kitano
The Bluegill Lepomis macrochirus, which utilizes colony spawning, has been introduced globally, and in Japan it is considered one of the worst invasive species. However, a detailed examination of the factors driving male guarding behavior and brood predation in the invaded habitat is lacking. The removal of guarding males, a common management technique in Japan, is thought to be effective in controlling
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Quantifying seasonal variations in space use within the home range of Burbot N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-12-17 Tyler J. Robinson, Andrew W. Hafs, Shannon J. Fisher, Jeffrey S. Ueland
Advances in acoustic telemetry have assisted biologists in understanding migration patterns, space use, survival, and effects of human influences on aquatic species. Using fine-scale positioning, fisheries managers can quantify home range size fluctuations throughout the year and even identify spawning areas. Burbot population dynamics have been studied across their range, while movement dynamics have
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Tagger effects in aquatic telemetry: Short-term and delayed effects of surgery in Atlantic Salmon smolts N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-12-17 Kurt C. Heim, Jonah Withers, Theodore Castro-Santos
An assumption of biotelemetry is that animal performance is unaffected by the tagging process and tag burden, yet this assumption is often untested or not thoroughly explored. Our objective was to explore how transmitter implantation procedures influenced Atlantic Salmon Salmo salar smolt survival and migratory performance.
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What's good for fish is good for fishes: Interspecific consistency of growth, condition, and abundance among glacial lakes N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-12-01 Peter T. Euclide, Christian Perry, Steven B. Donabauer, Angie Grier, Tomas O. Höök
Fish abundance and growth are regulated by a combination of bottom-up and top-down forces, but many management techniques depend more heavily on the latter. Here, we evaluated whether intersystem variation in nutrient loading and bottom-up forces play more dominant roles in the control of abundance and growth of species across similar lakes than intra- and interspecific compensatory effects. We aimed
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Proposed standard weight (Ws) equation and standard length categories for Goldeye N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-23 Brett T. Miller, Elizabeth A. Renner, Kyle R. Winders, Juju C. Wellemeyer, Hae H. Kim
Goldeye Hiodon alosoides relative weight (Wr) and proportional size distribution (PSD) have not been able to be evaluated in populations across their range. The objective of this project was to develop and assess standard weight (Ws) equations with three different techniques along with developing standard length categories for Goldeye.
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Quantifying the contributions of tributaries to large-river fish populations through mark-recapture modeling N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-23 Brian D. Healy, Emily Omana Smith
Tributaries may play a vital role in maintaining populations of large river fishes, although the specific contributions of tributaries toward recruitment of river-wide populations are not often understood. Tributaries may experience fewer cumulative anthropogenic impacts relative to main-stem rivers and may offer more natural conditions supportive of native fish populations, which may provide opportunities
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Imperfect detection and misidentification affect inferences from data informing water operation decisions N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-23 Joseph E. Kirsch, James T. Peterson, Adam Duarte, Denise Goodman, Andrew Goodman, Sara Hugentobler, Mariah Meek, Russell W. Perry, Corey Phillis, Lori Smith, Jeffrey Stuart
Managers can modify river flow regimes using fish monitoring data to minimize impacts from water management infrastructure. For example, operation of the gate-controlled Delta Cross Channel (DCC) in California can negatively affect the endangered Sacramento River winter-run Chinook Salmon Oncorhynchus tshawytscha. Although guidelines have been developed for DCC operations by using real-time juvenile
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An evaluation of the relative size, body condition, and survival of triploid Walleye in the wild N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-21 Collin J. Farrell, Adam G. Hansen, Mandi M. Brandt, Christopher A. Myrick, Brett M. Johnson
Natural dispersal or unauthorized introductions of nonnative predatory sport fish can undermine native species conservation and other fisheries management objectives. The use of reproductively sterile triploid fish may provide a lower risk stocking option (i.e., genetic and reproductive containment) for diversifying angling opportunities while possibly reducing angler motivation to illegally transplant
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Patterns in distribution and density of larval lampreys in the main-stem Columbia River, Washington–Oregon N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-20 Monica R. Blanchard, Julianne E. Harris, Joseph J. Skalicky, Gregory S. Silver, Jeffrey C. Jolley
This study compiled data sets from multiple research efforts from 2010 to 2018 to describe patterns in the presence and density of larval lampreys in deep water habitats across 430 river kilometers of the lower and middle main-stem Columbia River.
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Biotic and abiotic factors that influence Walleye recruitment in stocked lakes in Michigan N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-07 Justin Bopp, Seth J. Herbst, Travis O. Brenden, Kevin Wehrly, Jan-Michael Hessenauer
In recent decades, widespread evidence of declining Walleye Sander vitreus recruitment in the Midwestern United States has raised concerns about diminishing ecological benefits and fishing opportunities, which in turn has resulted in natural resource agencies using stocking to supplement populations. Success of Walleye stocking events vary; thus, evaluating the external factors that influence recruitment
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Postrelease mortality of spring Chinook Salmon from a mark-selective recreational fishery in the Yakima River, Washington N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-06 Anthony L. Fritts, Gabriel M. Temple, Cade Lillquist, Dan Rawding
Fishery managers often implement mark-selective fishing regulations that provide harvest opportunity on abundant hatchery salmon populations while requiring release of at-risk natural-origin populations. However, implementing these decisions requires fisheries managers to account for postrelease mortality of any natural-origin fish caught and released by anglers, which can be variable and is unknown
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Evaluation of Pacific Lamprey statoliths for age estimation across their life cycle N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-11-04 K. N. Pelekai, J. E. Hess, L. A. Weitkamp, R. T. Lampman, J. A. Miller
The anadromous Pacific Lamprey Entosphenus tridentatus is an ecologically and culturally important fish that has experienced declines in abundance and distribution throughout large portions of its range. However, the lack of fundamental biological information, such as age and growth, impedes management and conservation efforts.
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Transplantation of prespawn adult Sea Lampreys as an important restoration strategy N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-31 Stephen Gephard
Anadromous Sea Lamprey Petromyzon marinus, native to the Atlantic coast of the USA, has declined in numbers since European contact due to the construction of barrier dams. Simply addressing the stream barriers, either by removal or the addition of fishways, has not always resulted in the restoration of runs. An experimental approach of transplanting adult lamprey from existing runs into unoccupied
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Evaluating the viability of the use of T-bar and radiotelemetry tags on prespawn Arctic Lampreys N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-31 Mary C. Spanos, Curry J. Cunningham, Katie A. Drew, Trent M. Sutton
Arctic Lampreys Lethenteron camtschaticum are harvested by subsistence and commercial fisheries in the Yukon–Kuskokwim River region of Alaska; however, baseline population data are deficient. For mark–recapture and telemetry studies to be effectively implemented to assess Arctic Lamprey abundance, migratory and dispersal patterns, and spawning locations, tags must not impact fish survival, physiology
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Estimating seasonal Pacific geoduck clam Panopea generosa show-factors from long-term observation N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-29 Wayne Hajas, Mike Atkins
The geoduck show-factor is the probability an individual geoduck is detectable to a diver during a stock assessment survey. It is one of the values used to estimate the abundance of geoducks. This paper presents estimates of show-factor according to data collected during 21 approximately monthly surveys over a 32-month period. The new estimates are compared against other long-term studies of show-factor
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Assessing potential spawning locations of Silver Chub in Lake Erie N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-18 Jorden R. McKenna, Anjanette Bowen, John R. Farver, James M. Long, Jeffrey G. Miner, Nathan D. Stott, Patrick M. Kočovský
Silver Chub Macrhybopsis storeriana, a predominately riverine species throughout its native range, exists within Lake Erie as the only known lake population. Its population declined in the 1950s and never fully recovered. Canada has listed Silver Chub in the Great Lakes–St. Lawrence River as endangered and has initiated a recovery plan that recognized the identification of spawning areas as a critical
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Gafftopsail Catfish in Texas estuaries: Population trends and ecosystem implications N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-15 Lydia Cates, Stephen Hale, Zachary Olsen
Given the limited information on population dynamics of Gafftopsail Catfish Bagre marinus in the western Gulf of Mexico, the objectives of this study were to determine the status of this species in Texas estuaries by assessing trends in relative abundance, length, and habitat preferences from fishery-independent trawl (juvenile) and gill-net (adult) data, as well as angler harvest trends from fishery-dependent
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Growth performance of Rainbow Trout in reservoir tributaries and implications for steelhead growth potential above Skagit River dams N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-13 B. L. Jensen, R. C. Johnson, J. J. Duda, C. O. Ostberg, T. J. Code, J. H. Mclean, K. D. Stenberg, K. A. Larsen, M. S. Hoy, D. A. Beauchamp
In the Pacific Northwest (USA), Pacific salmon Oncorhynchus spp. populations have been declining significantly for decades, prompting stakeholders to respond with a variety of conservation and restoration measures. One such measure being considered in the Skagit River basin (Washington, USA) is the introduction of steelhead Oncorhynchus mykiss (anadromous Rainbow Trout) above the impassable Gorge,
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Does release size into net-pens affect survival of captively reared juvenile endangered suckers in Upper Klamath Lake? N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-10 John M. Caldwell, Summer M. Burdick, Jacob R. Krause, Alta C. Harris
High juvenile mortality prevents recruitment into the adult populations of endangered Shortnose Sucker Chasmistes brevirostris and Lost River Sucker Deltistes luxatus in Upper Klamath Lake, Oregon. To address the lack of recruitment, the U.S. Fish and Wildlife Service implemented the Sucker Assisted Rearing Program (SARP). Managers developing the rearing program lack information about how length at
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Environmental DNA compliments traditional sampling for monitoring fish communities in a Texas estuary N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-10 Damon Williford, Polly Hajovsky, Joel Anderson
Environmental DNA (eDNA) metabarcoding has become an important method for inventorying and monitoring biota in aquatic systems. The Texas Parks and Wildlife Department conducts regular fishery-independent sampling of biotic communities using traditional sampling gears, such as gill nets and bag seines, in all of the major estuaries of adjacent to the Gulf of Mexico in Texas. Previous studies have shown
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Validating morphometrics as a non-lethal tool to determine Arctic Grayling sex. N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-08 William T. Samuel, Lauren E. Yancy, Elizabeth G. Hinkle, Jeffrey A. Falke
Some Graylings (Thymallus spp.) possess an elongated dorsal fin and other morphological traits that can be sexually dimorphic as demonstrated in European Grayling T. thymallus. North American Arctic Grayling T. arcticus are assumed to follow these trends, but decisive evidence is lacking. This study aimed to determine whether sexually dimorphic characteristics, including posterior dorsal height, of
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Probiotics improve survival and growth of larval Pacific Lamprey in laboratory culture N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-08 Alexa N. Maine, Mary L. Moser, Aaron D. Jackson, Frank Wilhelm
The Pacific Lamprey Entosphenus tridentatus is a First Food for members of the Confederated Tribes of the Umatilla Indian Reservation and other Columbia Plateau tribes in the Pacific Northwest. Declines in Pacific Lamprey abundance have prompted restoration efforts, including development of artificial propagation. Laboratory rearing of larvae has focused on maximizing survival and growth to conserve
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An inexpensive method for reliable recovery of stream temperature data N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-08 Kevin B. Rogers, Brian W. Hodge
Water temperature is perhaps the single-most important environmental driver of fish populations. The strong relationship between fish and water temperature allows fisheries managers to make predictions about the influence of temperature on fishes under both current and future climatic conditions. These predictions are more robust if based on year-round and long-term data. However, water temperature
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Avoiding a macabre future for Macrhybopsis—A special section on improving management and conservation of chubs N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-08 Joshuah S. Perkin, Shannon K. Brewer, Anthony A. Echelle, Patrick M. Kočovský
The genus Macrhybopsis (hereafter collectively referred to as “chubs”) represents a broadly distributed group of imperiled species. Their distribution ranges from the Rio San Fernando in the state of Tamaulipas, Mexico, to the Choctawhatchee River in the state of Florida, United States, and to the Assiniboine River in Manitoba, Canada (Figure 1). Twelve species are currently recognized (Table 1), including
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Short-term fishery gains mask long-term resource pains: Spatial fisheries management changes promote hyperstable CPUE in Labrador snow crab Chionoecetes opilio during a period of heavy exploitation N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-06 Steven P. Griffeth, Krista D. Baker, Darrell R. J. Mullowney
The snow crab Chionoecetes opilio resource in Assessment Division 2HJ has experienced prolonged high exploitation rates and reduced exploitable biomass over the past two decades. We aimed to explore whether this poor state of the resource is associated with spatial management changes made in 2003 and 2013.
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Mark–recapture surveys affect nest site fidelity but not reproductive timing of male Smallmouth Bass N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-03 Erica Stegens, Daniel D. Wiegmann, Lisa M. Angeloni, Jeffrey R. Baylis, Robert A. S. Laroche, Steven P. Newman, Scott P. Egan, Greg G. Sass, Kelly L. Weinersmith
Fish population surveys in north-temperate lakes are often conducted in the fall or spring when individuals are easy to capture with traditional fisheries techniques. Because some fishes are preparing to spawn or are spawning during these seasons, there is a critical need to better understand the potential influences of these surveys on decisions that are related to fish reproduction.
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Seasonal, spatial, and water level predictors of angler catch and effort within Texas black bass reservoir fisheries N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-01 David R. Smith, J. Warren Schlechte, Randall A. Myers, Michael A. Dance, Jacob D. Norman, Mitchell T. Nisbet
We sought to identify seasonal, spatial, and water level predictors of black bass angler catch rates and effort densities (i.e., angler-hours/ha) within Texas reservoirs.
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Evidence for a male bias in Atlantic blue crab pot-based sampling N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-10-01 Jeff F. Brunson, Kimberly A. Sitta, Peter R. Kingsley-Smith, Michael R. Kendrick
The Atlantic blue crab Callinectes sapidus (hereafter, “blue crab”) is an ecologically and economically important species that supports one of the highest valued commercial fisheries in coastal South Carolina, USA. Researchers at the South Carolina Department of Natural Resources conduct multiple surveys to monitor the status of the blue crab by using a variety of gear configurations. Demographic characterizations
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Lampreys in California (Lampetra spp. and Entosphenus spp.): Mitochondrial phylogenetic analysis reveals previously unrecognized lamprey diversity N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-30 Grace Auringer, Matthew A. Campbell, Pascale A. L. Goertler, Amanda J. Finger
Protecting biodiversity is important for preserving ecosystem functions and services, and understanding the diversity present in a system is necessary for effective conservation. Lampreys display extensive diversity in morphology and life history strategy. The extent of this diversity and the underlying genetic patterns have not yet been fully characterized. Uncertainty about species boundaries and
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Evaluation of shoreline rotenone application to control Largemouth Bass recruitment in small impoundments N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-29 Tyler Steven Coleman, Robert W. Eckelbecker, Andrew K. Carlson, Dennis R. DeVries, Russell A. Wright, Benjamin A. Staton, Stephen W. Parker, Collin R. Chittam, Richard G. Lovell, Matthew J. Catalano
Reducing Largemouth Bass Micropterus salmoides recruitment and therefore population density could benefit recreational fisheries in small impoundments by improving individual growth rates and increasing the average size and condition of Largemouth Bass. To achieve these effects, methods of controlling Largemouth Bass recruitment should avoid reducing the productivity of their primary prey species,
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Low-level infection of parasitic copepods on Rainbow Trout does not affect vulnerability to angling or short-term survival following catch-and-release angling N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-29 Hannah N. Swain-Menzel, Eric J. Billman
Parasitic copepods, or “gill lice,” can harm fish hosts, resulting in reductions in fitness and increased probability of mortality. The purpose of our study was to determine the effect of Salmincola californiensis on the vulnerability of Rainbow Trout Oncorhynchus mykiss to recreational angling and short-term survival after being caught and released.
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A controlled experimental assessment of intraperitoneal PIT tag injection on survival of Blueback Herring N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-29 C. Ryan Hill, Abigale Culberson, Antóin M. O'Sullivan, Joke Adesola, R. Allen Curry, Tommi Linnansaari, Philip M. Harrison
Passive integrated transponder (PIT) telemetry is commonly used to monitor fish movements and behavior. To reduce inferential bias in PIT telemetry studies, it is important to quantify the effects of tagging procedures on fish survival. To this end, we conducted a controlled experiment to test the hypothesis that intraperitoneal injection of 23-mm PIT tags would have no effect on the survival of adult
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Effects of live-imaging sonar on Blue Catfish angler success, perception, and behavior N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-29 Ben C. Neely, Jeff D. Koch, Keith B. Gido
Proliferation of consumer-grade live-imaging sonar (LIS) has created management challenges in recreational fisheries. Most pervasive is the question about whether LIS users catch fish more effectively than nonusers. This project was designed to elucidate the effects of LIS use on catch of Blue Catfish Ictalurus furcatus from the Milford Reservoir, Kansas. Additionally, we sought to identify angler
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Silver Carp herding: A telemetry evaluation of efficacy and implications for design and application N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-28 Josey L. Ridgway, Matthew R. Acre, Tyler M. Hessler, Dustin W. Broaddus, Jessica Morris, Robin D. Calfee
The removal of invasive Silver Carp Hypophthalmichthys molitrix is a primary control action in North America. Strong avoidance responses to underwater sound and electricity have been shown to facilitate herding and mass removal of these fish. We conducted a telemetry study on a closed population of Silver Carp (i.e., 10 telemetered fish) to assess fine-scale movement responses to herding stimuli.
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Flow augmentation from off-channel storage improves salmonid habitat and survival N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-28 Gabriel J. Rossi, Mariska Obedzinski, Shelley Pneh, Sarah Nossaman Pierce, William T. Boucher, Weston M. Slaughter, Keane M. Flynn, Theodore E. Grantham
In the western United States, juvenile salmon Oncorhynchus spp. and steelhead O. mykiss are especially vulnerable to streamflow depletion in the dry season. Releasing water from off-channel storage into small streams is a novel restoration strategy to offset impacts from anthropogenic flow alteration on salmonid fishes. To date, no studies have evaluated the ecological effects of small-scale flow augmentations
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Angling party persistence and visitation in a recreational Lake Trout fishery: Relative influence of travel distance and fuel costs N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-19 Emily D. Cowie, Mark S. Ridgway
Cormack–Joly–Seber (CJS) mark–recapture analysis was used to estimate the effect of travel distance and fuel costs on angling party persistence (i.e., survival = probability of remaining in the Lake Trout Salvelinus namaycush fishery from year-to-year) and visitation (i.e., detection = probability of detection at the access point) over a 14-year period (2006–2019) for the Lake Trout recreational fishery
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Sexual dimorphism in an invasive population of suckermouth armored catfish: Implications for management N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-19 Wesley A. Arend, Rebecca D. Mangold, Christopher L. Riggins, Collin Garoutte, Yeyetzi Rodriguez, Thomas C. Heard, Nick Menchaca, Janaye Williamson, Dusty McDonald, Daniel Daugherty, Monica McGarrity, Kevin W. Conway, Joshuah S. Perkin
Suckermouth armored catfishes (SACs; Loricariidae) have invaded water bodies outside their native range globally. Population control methods, including removals and genetic biocontrols, may be enhanced through greater knowledge of sex discrimination, sex ratios, and potential sex bias among control methods.
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Estimates of adult Lake Trout mortality from coded wire tags in a population with developing natural reproduction in southern Lake Michigan N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-09-10 Richard D. Clark, Mark P. Ebener, James R. Bence, Matthew S. Kornis, Charles R. Bronte, Theodore J. Treska, Jory L. Jonas, Charles P. Madenjian, Iyob W. Tsehaye
Overfishing and Sea Lamprey Petromyzon marinus predation led to extirpation of Lake Trout Salvelinus namaycush from Lake Michigan in the 1950s. Large populations of hatchery-reared fish were developed by the 1970s, but natural reproduction was limited until the early 2000s when it began to increase in the southern main basin. Hypothesizing that the relatively low mortality of spawning-aged fish contributed
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Genetic structure of the Silver Chub indicates distinctiveness of Lake Erie population N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-22 Ahmed A. Elbassiouny, João Pedro Fontenelle, Patrick M. Kočovský, Nicholas E. Mandrak, Nathan R. Lovejoy
Silver Chub Macrhybopsis storeriana is a small riverine minnow endemic to North American fresh waters. Its range extends from the southern USA to southcentral Canada; the latter includes a rare lacustrine population in Lake Erie. Anthropogenic activities pose an immediate threat to several Silver Chub populations, currently categorized from special concern to threatened at the state level in the USA
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Increased density of Bluehead Sucker larvae decreases critical thermal maximum N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-22 Tawni B. Riepe, Zachary E. Hooley-Underwood, Rebecca E. McDevitt, Alan Sralik, Pete Cadmus
Streams used by Bluehead Suckers Catostomus discobolus experience variable water temperatures of high and low extremes and extreme rates of change. Acute and chronic laboratory temperature tests have been used to develop protective thermal criteria, but these methods do not allow for testing the lethality of temperature interactions with other stressors. For instance, fish density and temperature interactions
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Evaluating bycatch avoidance in the U.S. Atlantic sea scallop Placopecten magellanicus fishery N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-18 Brooke A. Lowman, Catherine E. O'Keefe, Steven X. Cadrin
The effectiveness of bycatch avoidance programs relies on changes in fishing behavior in response to spatiotemporal information on bycatch patterns. A voluntary bycatch avoidance program in the U.S. sea scallop Placopecten magellanicus fishery designed to prevent triggering bycatch allocation of Yellowtail Flounder Limanda ferruginea was implemented and maintained concurrently with other management
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Adult Sea Lamprey approach and passage at the Milford Dam fishway, Penobscot River, Maine, United States N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-18 Erin Peterson, Rex Thors, Danielle Frechette, Joseph D. Zydlewski
Sea Lamprey Petromyzon marinus provide important ecological services within their native range, such as nutrient cycling, and can also act as a prey source for other species. Adult Sea Lamprey must access freshwater rivers to spawn, and because of this they are susceptible to changes in river connectivity. Human-made structures, such as dams, can exclude them from usable habitat. Sea Lamprey dam passage
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Multiscale population demographics and growth responses of trout in the upper Snoqualmie River watershed, Washington N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-18 Jamie Nicholas Thompson, Nathanael Christian Overman
Population demographics of trout were analyzed across multiple spatial scales to evaluate fishery resources in the three forks and main stem of the upper Snoqualmie River, Washington. Physical habitat and trout species compositions, relative abundances, and sizes were assessed through spatially continuous sampling of the watershed. Fish were also sampled at the segment scale (5–20 km) for more detailed
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Improving electronic reporting rates in the U.S. recreational fishery for Atlantic Bluefin Tuna N. Am. J. Fish. Manag. (IF 1.1) Pub Date : 2023-08-17 William M. Goldsmith, Andrew M. Scheld, Christopher McGuire, Carl Lobue
In recent years, electronic self-reporting has emerged as a potentially powerful tool for timely collection of catch and effort data from recreational fisheries. Such approaches are particularly critical given that recreational fisheries contribute significantly to fishing mortality for popular marine fish species in North America and elsewhere. However, many self-reporting programs are voluntary and