A Study to Determine the Biological Feasability of a New Fish Tagging System : Annual Report, 1986-1987.
In 1983, a multi-year project to evaluate the technical and biological feasibility of adapting a new identification system to salmonids was established. The system is based upon a miniaturized passive integrated transponder (PIT) tag. This report discusses the work completed and is divided into laboratory studies, field studies, and systems development. All studies were conducted using a glass-encapsulated tag implanted into the body cavity of test fish via a 12-gauge hypodermic needle. Laboratory studies with juvenile chinook salmon, Oncorhynchus tshawytscha, showed that retention of glass-encapsulated PIT tags was 99-100% in fish weighing 3 g (mean weight) or larger. No adverse tissue response to the tag was noted. The survival of fish 5 g (mean weight) or larger was usually greater than 99%. However, fish ranging in weight from 2 to 4 g, or fish undergoing a physiological change such as smoltification may have a low mortality (usually less than 5.0%) after tagging. The mortality rate in the smaller fish was dependent upon tagging skill whereas mortality in smolting fish seemed dependent upon the level of stress. Growth comparisons between tagged and control fish indicated PIT-tagged fish had a slightly depressed growth rate at some measurement periods. The operational life of glass-encapsulated PIT tags implanted in fish was good, with 100% of the tags operating after 401 days. No tags were rejected from the fish during the observation period.
- Research Organization:
- U.S. Bonneville Power Administration
- Sponsoring Organization:
- United States. Department of Energy.
- DOE Contract Number:
- AI79-84BP11982
- OSTI ID:
- 6381250
- Report Number(s):
- DOE/BP-11982-3; ON: DE89009898
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
ENVIRONMENTAL EFFECTS
MITIGATION
POWER GENERATION
ENVIRONMENTAL IMPACTS
SALMON
SURVIVAL CURVES
ADULTS
BASELINE ECOLOGY
COLUMBIA RIVER
DESIGN
JUVENILES
LABELLING
PROGRESS REPORT
TROUT
AGE GROUPS
ANADROMOUS FISHES
ANIMALS
AQUATIC ORGANISMS
DOCUMENT TYPES
ECOLOGY
FISHES
RIVERS
STREAMS
SURFACE WATERS
VERTEBRATES
Fish tagging - Columbia River
130600* - Hydro Energy- Environmental Aspects
520100 - Environment
Aquatic- Basic Studies- (-1989)