Some indices of lake productivity

Journal Article · Sat Jan 01 04:00:00 EST 1949 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1946)76[322:SIOLP]2.0.CO;2· OSTI ID:6914171

Moyle, J B

In an attempt to evaluate lake-survey procedures some of the chemical, physical, and biological measurements that have been considered possible indices of lake productivity have been examined in the light of 11 years of lake surveys and 6 years of pond rearing of yellow pikeperch. In Minnesota waters total alkalinity and total phosphorus appear to be the most valuable indices. Nitrogen is usually present in excess; sulphates are of most value in considering waterfowl areas; and chlorides, pH, and dissolved carbon dioxide are of little value in comparing waters and judging potential productivity. Potassium, manganese, and iron concentrations also are discussed. Quantitative plankton and bottom-fauna samples have been found unsatisfactory as productivity indices for ordinary lake surveys, and the distribution and abundance of larger aquatic plants are of greatest value when related to waterfowl management. In estimating the potential productivity and formulating fish-management plans for lakes the structure of the fish population and the nature of the lake basin should be considered.

• OSTI ID: 6914171
• Journal Information: Trans. Am. Fish. Soc.; (United States), Journal Name: Trans. Am. Fish. Soc.; (United States) Vol. 76; ISSN TAFSA
• Country of Publication: United States
• Language: English

Related Subjects

520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALI METALS
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL INDICATORS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECOLOGICAL CONCENTRATION
ECOSYSTEMS
ELEMENTS
FEDERAL REGION V
FISHES
IRON
LAKES
MANGANESE
METALS
MINNESOTA
NITROGEN
NONMETALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PHOSPHORUS
PLANKTON
POPULATION DYNAMICS
POTASSIUM
PRODUCTIVITY
RANGELANDS
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
TERRESTRIAL ECOSYSTEMS
TRANSITION ELEMENTS
USA
VERTEBRATES