Assessment methodology for new cooling lakes. Volume 2. Development of empirical multivariate relationships for evaluating fish communities in new cooling lakes. Final report

Technical Report · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6428028

Grieb, T M; Porcella, D B; Ginn, T C; Lorenzen, M W

Numerical classification techniques were used to define groups of lakes with distinct fish community attributes. Simple linear and multiple regression were then used to identify the important environmental variables affecting the fish communities. Next, the multivariate statistical technique of discriminant analysis was tested and shown to predict the groups of lakes (defined in the initial step of classification) using the identified environmental variables. Classification equations derived in the discriminant analysis enable the user to predict fish community characteristics of a new lake. The equations combine the information from nine limnological parameters into a single index of classification. Based on the value of this index, the lake is classified into one of four distinct groups. The fishery characteristics of the indicated group are then used to predict fish community structure and recreational fishery use. Angler-use estimates for the group are used to project multiple use benefits.

• Research Organization: Tetra Tech, Inc., Lafayette, CA (USA)
• OSTI ID: 6428028
• Report Number(s): EPRI-EA-2059-Vol.2; ON: DE83901463
• Country of Publication: United States
• Language: English

Related Subjects

520100* -- Environment
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
560205 -- Thermal Effects-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
COOLING
COOLING PONDS
ENVIRONMENTAL QUALITY
FISHES
FISHING INDUSTRY
FORECASTING
INDUSTRY
LAKES
LIMNOLOGY
LINEAR PROGRAMMING
MATHEMATICS
PLANNING
PONDS
POPULATION DYNAMICS
PROGRAMMING
RECREATIONAL AREAS
REGRESSION ANALYSIS
SPECIES DIVERSITY
STATISTICS
SURFACE WATERS
THERMAL EFFLUENTS
VERTEBRATES
WATER QUALITY
WATER RESERVOIRS