Prev Doc | Prev Page | Doc List | USGS Home | Contents | Next Page | Next Doc

Contents

ABSTRACT
INTRODUCTION
Background
Purpose and Scope
NATIONAL WATER-QUALITY ASSESSMENT SAMPLING DESIGN
Retrospective Analysis and Reconnaissance
Occurrence and Distribution Assessment
Assessment of Long-term Trends and Changes
Source, Transport, Fate, and Effects Studies
FISH COMMUNITY SAMPLING DESIGN
Retrospective Data
Type of Sample
Sampling Reach
Selection of Sampling Sites
Sampling Season
FISH COMMUNITY SAMPLING CONSIDERATIONS
Collecting Permits
Endangered, Threatened, or Special-Concern Species
Coordination of Sampling With Other Fish Ecologists
METHODS FOR SAMPLING FISH COMMUNITIES
Electrofishing
Wadeable Streams
Nonwadeable Streams
Safety
ELECTROFISHING FIELD SAFETY CHECKLIST
Seining
Wadeable Streams
Nonwadeable Streams
Other Sampling Methods
Gill Netting
Hoop Netting
Additional Methods
Sample Processing
Taxonomic Identification
Length Measurements
Weight Measurements
External Anomalies
Fixing and Preserving of Specimens
BIOLOGICAL QUALITY-ASSURANCE UNIT
FIELD DATA SHEETS
Fish Sampling Equipment Data Sheet
Fish Sampling Equipment
Fish Species
Fish Species Data Sheet
SUMMARY
REFERENCES CITED