Eutrophication and Aquatic Ecosystems

Flashcards covering key concepts related to eutrophication and its effects on aquatic ecosystems.

Eutrophication

The enrichment of a body of water with nutrients, leading to excessive algae growth.

Algal Bloom

A rapid increase in the population of algae in aquatic environments, often due to excess nutrients.

Hypoxic Waterways

Bodies of water that are low in dissolved oxygen.

Oligotrophic Waterways

Waterways that have low nutrient levels, stable algae populations, and high dissolved oxygen.

Anthropogenic Causes

Human-induced factors that contribute to eutrophication, such as agricultural runoff and wastewater release.

Dissolved Oxygen (DO)

The amount of oxygen that is present in water, essential for aquatic life.

Cultural Eutrophication

Eutrophication resulting from human activities that increase nutrient input into water bodies.

Dead Zones

Areas in water bodies where the oxygen level is too low to support most marine life.

Positive Feedback Loop (in Eutrophication)

A cycle where lower oxygen levels lead to more decay of organic matter, further reducing oxygen and harming aquatic life.

Benthic Zone

The lowest ecological zone in a water body, where sediment accumulates and can affect nutrient levels.