Because of the importance of Chinook salmon to commercial and subsistence fisheries on the Yukon River, further study of the factors that may affect the success of this species and our ability to manage the fisheries is warranted. Critical to these studies is the determination of the amount of lipids (fat) stored and available to the fish as its primary energy source for migration and spawning. Recent developments of Bioelectrical Impedance Analysis (BIA) promise a simple, non-lethal means of estimating proximate composition for field applications with fish. The project goal is to develop BIA models for Chinook salmon from the Yukon River watershed that will permit the non-lethal estimation of body proximate composition (e.g. fat, protein, water content) for use in field studies.
This study will develop BIA models for Chinook salmon that will permit the non-lethal estimation of body proximate composition (e.g. fat, protein, water content) for use in future field applications. This work addresses interim priority #2 as a feasibility and pilot project that will permit development of much broader studies relating to the understanding of Chinook salmon ecology and the ability to wisely manage the fisheries based on ecological principals.
Joseph Margraf
joe.margraf@uaf.edu
University of Alaska Fairbanks
907-474-7872
University of Alaska Fairbanks
P.O. Box 757020
Fairbanks
AK
99775
A Final Report is available for this project: Click to view
A Project Authorization Statement is available for this project: Click to view
The following Semi Annual Progress Reports are available
January 2005
July 2005
First Year Funding: $20,952.00
Second Year Funding:
Third Year Funding:
Fourth Year Funding:
Fields of Expertise |
| Biological Science |
| Bio-Energetics - 3 Other Projects |
| Physical Science |
| Socio/Economic |
Professional Activity |
| Field research and Data Collection - 37 Other Projects |
Ecosystems |
| Freshwater – Rivers/Streams - 45 Other Projects |
Ecosystem Components |
| Fish - 51 Other Projects |
| Species Groups |
| Anadromous salmonids - 51 Other Projects |
| Chinook - 22 Other Projects |
| Specific research issues |
| Energetics - 2 Other Projects |
Geographic Regions |
| Yukon River Watershed - 21 Other Projects |
Technological Expertise/Lab Methods |
| Lab Methods |
| Calorimetric Analysis - 2 Other Projects |
| Fatty Acid Analysis - 2 Other Projects |
| Technology |
Modeling |
| Method |
| Type |
Physical Science Specialties Areas |
Management/Policy/Social |