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Year Published: 2009

Evaluating the power to detect temporal trends in fishery independent surveys: A case study based on Gillnets Set in the Ohio waters of Lake Erie for walleye

Fishery-independent (FI) surveys provide critical information used for the sustainable management and conservation of fish populations. Because fisheries management often requires the effects of management actions to be evaluated and detected within a relatively short time frame, it is important that research be directed toward FI survey...

Wagner, Tyler; Vandergoot, Christopher S.; Tyson, Jeff

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Year Published: 2009

Converting nonstandard fish sampling data to standardized data

Peterson, James; Paukert, Craig P.
Converting nonstandard fish sampling data to standardized data; 2009; Article; Standard methods for sampling North American freshwater fishes; Peterson, James T.; Paukert, Craig P.

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Year Published: 2009

Standard methods for sampling North American freshwater fishes

This important reference book provides standard sampling methods recommended by the American Fisheries Society for assessing and monitoring freshwater fish populations in North America. Methods apply to ponds, reservoirs, natural lakes, and streams and rivers containing cold and warmwater fishes. Range-wide and eco-regional averages for indices of...

Bonar, Scott A.; Hubert, Wayne A.; Willis, David W.
Standard methods for sampling North American freshwater fishes; 2009; Book; Edited by Bonar, Scott A.; Hubert, Wayne A.; Willis, David W.

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Year Published: 2009

Morphological characteristics and growth of northern pike in waters of the United States

No abstract available.

Kuzmenko, Y.G.; Spesyviy, T.B.; Bonar, Scott A.
Morphological characteristics and growth of northern pike in waters of the United States (in Ukrainian); 2009; Article; Journal; Fisheries; Kuzmenko, Y. G.; Spesyviy, T. B.; Bonar, Scott A.

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Year Published: 2009

An unusual northern cardinal nest: cooperative breeding or nesting sharing

No abstract available.

Leslie, David M.

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Year Published: 2009

Climate change adaptation for the US National Wildlife Refuge System

Since its establishment in 1903, the National Wildlife Refuge System (NWRS) has grown to 635 units and 37 Wetland Management Districts in the United States and its territories. These units provide the seasonal habitats necessary for migratory waterfowl and other species to complete their annual life cycles. Habitat conversion and fragmentation,...

Griffith, Brad; Scott, J. Michael; Adamcik, Robert S.; Ashe, Daniel; Czech, Brian; Fischman, Robert; Gonzalez, Patrick; Lawler, Joshua J.; McGuire, A. David; Pidgorna, Anna

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Year Published: 2009

Effects of commercial harvest on shovelnose sturgeon populations in the Upper Mississippi River

Shovelnose sturgeon Scaphirhynchus platorynchus have become an increasingly important commercial species in the upper Mississippi River (UMR) because of the collapse of foreign sturgeon (family Acipenseridae) populations and bans on imported caviar. In response to concerns about the sustainability of the commercial shovelnose sturgeon fishery in...

Koch, Jeff D.; Quist, Michael C.; Pierce, Clay L.; Hansen, Kirk A.; Steuck, Michael J.

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Year Published: 2009

Sensitivity of the carbon cycle in the Arctic to climate change

The recent warming in the Arctic is affecting a broad spectrum of physical, ecological, and human/cultural systems that may be irreversible on century time scales and have the potential to cause rapid changes in the earth system. The response of the carbon cycle of the Arctic to changes in climate is a major issue of global concern, yet there has...

McGuire, A. David; Anderson, Leif G.; Christensen, Torben R.; Dallimore, Scott; Guo, Laodong; Hayes, Daniel J.; Heimann, Martin; Lorenson, T.D.; Macdonald, Robie W.; Roulet, Nigel

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Year Published: 2009

Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors

Nitrogen cycle dynamics have the capacity to attenuate the magnitude of global terrestrial carbon sinks and sources driven by CO2 fertilization and changes in climate. In this study, two versions of the terrestrial carbon and nitrogen cycle components of the Integrated Science Assessment Model (ISAM) are used to evaluate how variation in nitrogen...

Jain, A.A.; Yang, Xiaojuan; Kheshgi, H.; McGuire, A. David; Post, W.; Kicklighter, David W.

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Year Published: 2009

Projected changes in atmospheric heating due to changes in fire disturbance and the snow season in the western Arctic, 2003–2100

In high latitudes, changes in climate impact fire regimes and snow cover duration, altering the surface albedo and the heating of the regional atmosphere. In the western Arctic, under four scenarios of future climate change and future fire regimes (2003–2100), we examined changes in surface albedo and the related changes in regional...

Euskirchen, E.S.; McGuire, A. David; Rupp, T.S.; Chapin, F. S.; Walsh, J.E.

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Year Published: 2009

Paddlefish management, propagation, and conservation in the 21st century

Paukert, Craig P.; Scholten, George D.

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Year Published: 2009

Diverse elevational diversity gradients in Great Smoky Mountains National Park, U.S.A.: Chapter 10

Why does the number of species vary geographically? The earliest naturalists puzzled over this question, as do many biogeographers and macroecologists today. Over the last 200-plus years, the most striking geographic pattern in species richness – the decline in species richness with increasing latitude – has received the most attention. Thanks to...

Sanders, Nathan J.; Dunn, Robert R.; Fitzpatrick, Matthew C.; Carlton, Christopher E.; Pogue, Michael R.; Parker, Charles R.; Simons, Theodore R.