What is the significance of temperature data?
Several interesting studies can be made from the data obtained from the temperature readings. Most prominent is the identification of temperature patterns at various depths and the relationship to the seasons of the year (Figure 10). Stratification refers to distinct layers of water that do not mix with each other due to density differences. The temperature readings also give an indication of whether conditions are favorable for cold-water fishes. The rates of metabolism of animals, as well as rates of photosynthesis and decomposition, are temperature sensitive. The migration of fish and their spawning behavior are associated with temperature changes. Temperature and dissolved oxygen are related in that warmer water holds less oxygen than cooler water. How does the lake temperature vary throughout the year? In most inland lakes in the temperate zone, the temperature of the lake is essentially uniform from top to bottom two times per year, spring and late fall. When this occurs, wave ac