Thermal stratification of Dilute Lakes. Evaluation of regulatory processes and biological effects before and after base addition: Effects on brook trout habitat and growth. Technical report series

Technical Report · Thu Apr 01 04:00:00 EST 1993

OSTI ID:6316362

Schofield, C L; Josephson, D; Keleher, C; Gloss, S P

The authors address the significance of changes in summer thermal stratification patterns of Adirondack lakes affected by acidification to cold-water fish populations inhabiting these sensitive lakes. The brook trout (Salvelinus fontinalis) is the primary cold-water fish species indigenous to acid-sensitive lakes in the Adirondack region of northern New York State; the ability of these lakes to sustain this important sport species is highly dependent on the availability of adequate summer habitat, consisting of cool, well-oxygenated water. The authors hypothesized that acidification-induced reductions in the thermal stability of sensitive Adirondack lakes could lead to degradation of potential brook trout habitat. These hypotheses were addressed in the study by utilizing data available from previous lake liming studies in the Adirondack region, brook trout growth data from management studies in the region, and the extensive Adirondack Lake Survey Corporation (ALSC) data base. More than 70% of the small, shallow ALSC lakes were classified as predominantly weakly stratified systems that would be potentially sensitive to changes in thermal stratification status resulting from relatively small changes in color and transparency.

• Research Organization: Cornell Univ., Ithaca, NY (United States). Dept. of Natural Resources
• OSTI ID: 6316362
• Report Number(s): PB-93-198141/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
550200 -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ACID RAIN
ACIDIFICATION
ADIRONDACK MOUNTAINS
ANIMALS
APPALACHIAN MOUNTAINS
AQUATIC ORGANISMS
ATMOSPHERIC PRECIPITATIONS
AVAILABILITY
BIOLOGICAL EFFECTS
COLOR
DEVELOPED COUNTRIES
DOCUMENT TYPES
ELEMENTS
FISHES
FRESH WATER
GROWTH
HABITAT
HYDROGEN COMPOUNDS
HYPOTHESIS
INVERTEBRATES
LAKES
LEAD
LIMING
MANAGEMENT
METALS
MOUNTAINS
NEW YORK
NORTH AMERICA
OPACITY
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION
POPULATIONS
RAIN
REGULATORY GUIDES
SENSITIVITY
STABILITY
STRATIFICATION
SURFACE WATERS
SURVEYS
TEMPERATURE DEPENDENCE
TROUT
USA
VERTEBRATES
WATER
WATER POLLUTION
WEIGHT