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Using mark-recapture models to estimate survival from telemetry data: Chapter 9.2
Analyzing telemetry data within a mark–recapture framework is a powerful approach for estimating demographic parameters (e.g., survival and movement probabilities) that might otherwise be difficult to measure. Yet many studies using telemetry techniques focus on fish behavior and fail to recognize the potential of telemetry data to provide information about fish survival. The sophistication of bot
Authors
Russell W. Perry, Theodore R. Castro-Santos, Christopher M. Holbrook, Benjamin P. Sandford
Time-to-event analysis as a framework for quantifying fish passage performance
Fish passage is the result of a sequence of processes, whereby fish must approach, enter, and pass a structure. Each of these processes takes time, and fishway performance is best quantified in terms of the rates at which each process is completed. Optimal performance is achieved by maximizing the rates of approach, entry, and passage through safe and desirable routes. Sometimes, however, it is ne
Authors
Theodore R. Castro-Santos, Russell W. Perry
Use of acoustic telemetry to evaluate survival and behavior of juvenile salmonids at hydroelectric dams: A case study from Rocky Reach Dam, Columbia River, USA: Chapter 8.1
Telemetry provides a powerful and flexible tool for studying fish and other aquatic animals, and its use has become increasingly commonplace. However, telemetry is gear intensive and typically requires more specialized knowledge and training than many other field techniques. As with other scientific methods, collecting good data is dependent on an understanding of the underlying principles behind
Authors
Tracy W. Steigl, Christopher M. Holbrook
Design and performance of radio telemetry systems for assessing juvenile fish passage at three hydroelectric dams
Studies of the effects of hydroelectric dams on fish populations are common (Williams 2008). Dams block passage of migratory and resident fish, alter habitats from free-flowing to lacustrine, and can alter water temperatures both upstream and downstream. At some dams, structures or operations are modified to reduce their effects on fish populations. In these cases, it is recommended that a series
Authors
John W. Beeman, Eric Hockersmith, John R. Stevenson
Optimization of radio telemetry receiving systems
The performance of radio telemetry receiving systems can be affected by numerous factors, thus it is important for researchers to understand these factors when designing a radio telemetry study. One approach that has been used to describe these factors is the radio system equation which defines six variables that affect radio receiving systems (Sisak and Lotimer 1998; Section 5.1). This equation i
Authors
Scott D. Evans, John R. Stevenson
Techniques for telemetry transmitter attachment and evaluation of transmitter effects on fish performance: Chapter 4
One assumption of nearly every biotelemetry study is that the tagged animals are representative of the untagged population. That is, that the processes by which study animals are captured, handled, and tagged, as well as the act of carrying a transmitter, will have minimal effect on their behavior and performance. This assumption, commonly stated as a lack of transmitter effects, must be valid if
Authors
Theresa L. Liedtke, A. Michelle Wargo Rub
A history of telemetry in fishery research
Biotelemetry has been defined as “the instrumental technique for gaining and transmitting information from a living organism and its environment to a remote observer” (Slater 1965). Biotelemetry typically utilizes wireless transmission of either an audible signal or electronic data to determine location of a tagged animal. Fisheries researchers use location information to gain a variety of insight
Authors
Eric Hockersmith, John W. Beeman
Introduction
elemetry provides a powerful and flexible tool for studying aquatic animals, making it possible to repeatedly locate and identify individuals in remote or inaccessible settings—a task that would be difficult (if not impossible) to accomplish using other methods. The use of telemetry has increased dramatically in recent years, and its application is limited only by the capabilities of the equipment
Preface
Telemetry provides a powerful and flexible tool for studying fish and other aquatic animals, and its use has become increasingly commonplace. However, telemetry is gear intensive and typically requires more specialized knowledge and training than many other field techniques. As with other scientific methods, collecting good data is dependent on an understanding of the underlying principles behind
Authors
John W. Beeman
Monitoring that matters
Monitoring is a critically important activity for assessing the status of a system, such as the health of an individual, the balance in one's checking account, profits and losses of a business, the economic activity of a nation, or the size of an animal population. Monitoring is especially vital for evaluating changes in the system associated with specific known impacts occurring to the system. It
Authors
Douglas H. Johnson
The treatment of missing data in long-term monitoring programs
No abstract available.
Authors
Douglas H. Johnson, Michael B. Soma
Assessment of shallow landslide potential using 1-D and 3-D slope stability analysis
No abstract available.
Authors
Rex L. Baum, Jonathan W. Godt, Jeffrey A. Coe, Mark E. Reid