Thermal Pollution Lab p. 211

Human activity can result in warming of aquatic ecosystems - thermal pollution.

Most aquatic organisms are "cold-blooded" (or ectothermic): their body temperature (and metabolic rate) varies with the environment.

Therefore they are sensitive to temperature changes in the environment.

Oxygen levels in water decreases as temperature increases: see Table 8.1-1.

Some organisms can tolerate high temperatures and/or low oxygen levels better than others.

Note that goldfish can tolerate temperatures up to 106°F (41°C), see Table 8.1-2.

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