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Year Published: 2019

Captive-rearing duration may be more important than environmental enrichment for enhancing turtle head-starting success

Raising captive animals past critical mortality stages for eventual release (head-starting) is a common conservation tactic. Counterintuitively, post-release survival can be low. Post-release behavior affecting survival could be influenced by captive-rearing duration and housing conditions. Practitioners have adopted environmental enrichment to...

Tetzlaff, S.J.; Sperry, J.S.; Kingsbury, B.A.; Degregorio, Brett Alexander

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Year Published: 2019

Conservation easements and coastal armoring: Protecting sea turtle nesting habitat through property ownership

To determine the relationship between the intent of owners of homes located near sea turtle nesting beaches in the state of Florida to engage in coastal conservation easements (CCE), the theory of planned behavior (TPB), environmental identity (EI) and relevant demographics were analyzed. As CCEs are a novel application of a proven conservation...

Hill, M.K.; Monroe, M.C.; Carthy, Raymond; Ankersen, T.T.; Kay, T.A.

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Year Published: 2019

Using a mechanistic model to develop management strategies to cool Apache Trout streams under the threat of climate change

User‐friendly stream temperature models populated with on‐site data may help in developing strategies to manage temperatures of individual stream reaches that are subject to climate change. We used the field‐tested Stream Segment Temperature model (U.S. Geological Survey) to simulate how altering discharge, groundwater input, channel wetted width...

Baker, Joy Price; Bonar, Scott A.

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Year Published: 2019

Population trends of king and common eiders from spring migration counts at Point Barrow, Alaska between 1994 and 2016

Most king (Somateria spectabilis) and common eiders (S. mollissima v-nigra) breeding in the northwestern Nearctic migrate past Point Barrow, Alaska. Spring migration counts have been conducted there since 1953; during 1976–1996, both species declined > 50% for unknown reasons. To evaluate population trends, counts in 2003, 2004, 2015...

McGuire, R.; Suydam, R.; Quakenbush, L.; Powell, Abby

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Year Published: 2019

Effects of multiple nonnative fish on an imperiled cyprinid, Hornyhead Chub

Nonnative fish can have substantial negative effects on the abundance and distribution of native fishes through predation and competition. Nonnative predators are of particular interest because they represent novel threats to native prey species that are not adapted to their presence. Prey species with limited distributions or population sizes may...

Hickerson, Brian T.; Maitland, Bryan M.; Walters, Annika W.

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Year Published: 2019

Multivariate models and analyses

No abstract available.

Stuber, Erica; Christopher Chizinski; Lusk, Jeffrey; Fontaine, Joseph J.

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Year Published: 2019

Isolation by a hydroelectric dam induces minimal impacts on genetic diversity and population structure in six fish species

Reduced connectivity created by artificial barriers can influence the genetic integrity of isolated subpopulations by reducing local population sizes and altering patterns of gene flow. We investigated the genetic impacts of one such barrier, the Prairie du Sac dam, Wisconsin, USA, using microsatellite data from six fish species with varying life...

Ruzich, Jenna; Turnquist, Keith; Nye, Nathan; Rowe, David; Larson, Wesley

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Year Published: 2019

Effects of the neonicotinoid insecticide clothianidin on southern leopard frog (Rana sphenocephala) tadpole behavior

Neonicotinoid insecticides are highly water soluble with relatively long half-lives, which allows them to move into and persist in aquatic ecosystems. However, little is known of the impacts of neonicotinoids on non-target vertebrates, especially at sublethal concentrations. We evaluated the effects of the neonicotinoid clothianidin on the...

Holtswarth, J. N.; Rowland, F. E.; Puglis, Holly J.; Hladik, Michelle; Webb, Elisabeth B.

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Year Published: 2019

Distribution and status of trout and char in North America

No abstract available.

Budy, Phaedra; Rogers, Kevin B.; Kanno, Yoichiro; Penaluna, Brooke E; Hitt, Nathaniel; Thiede, Gary P.; Dunham, Jason; Mellison, Chad; Somer, William; DeRito, James

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Year Published: 2019

An importance–satisfaction analysis of trout license holders in Georgia

As anglers become increasingly diverse, fisheries managers are challenged to find ways to satisfy users with divergent preferences while conserving a limited resource on a limited budget. With this management challenge in mind, this study combines previous angler specialization research with an importance–satisfaction analysis (ISA) to aid...

TenHarmsel, H. J.; Boley, B. B.; Irwin, Brian J.; Jennings, Cecil A.

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Year Published: 2019

A food web modeling assessment of Asian Carp impacts in the Middle and Upper Mississippi River, USA

The invasion of non-native fishes has caused a great detriment to many of our native fishes. Since the introduction of invasive carps, such as Silver, Bighead, Common and Grass Carp, managers and researcher have been struggling to remove these species while also hypothesizing the detriment of further invasion. This study developed a food web...

Kramer, Nicholas W.; Phelps, Quinton E.; Pierce, Clay; Colvin, Michael E.