Definition and Causes
This term describes the excessive enrichment of water bodies with nutrients, leading to plant and algae overgrowth.
This type of algae bloom produces toxins harmful to fish and humans.
Harmful algal blooms (HABs)
This type of animal farming is a major contributor to nutrient pollution through manure runoff.
Industrial livestock farming
This sea was proof that dead zones can be resolved with effort.
Dead Sea
What are the two primary nutrients responsible for eutrophication?
Nitrogen and Phosphorous
Large areas of water become oxygen-depleted, killing marine life.
Dead zones
The removal of too many fish disrupts the food web, reducing natural algae control.
Overfishing
This activity was restricted to allow populations to recover.
Fishing
The main human activity contributing to nutrient runoff into water bodies.
Agriculture/fertilizer use.
The term for when oxygen levels in the water drop too low to support most marine life.
Anoxic conditions
The primary greenhouse gas associated with increased algal blooms due to climate change.
CO2
40
The process by which algae deplete oxygen levels in water, harming aquatic organisms.
Hypoxia
This term describes algal overgrowth that forms large mats or blooms moving with wind current, giving the appearance of waves.
Surfing
This atmospheric phenomenon deposits nitrogen from fossil fuel combustion into water bodies.
Atmospheric Deposition
This mollusk community was able to recover as a result of relieving dead zones in the Dead Sea
Mussels
A dissolved oxygen level of __ mg/L is considered hypoxic.
2 mg/L
This bacteria caused toxic blue-green algae.
Cyanobacteria
Name a physical effect toxic blue algae has on humans.
GI harm / Skin rashes / Allergic Reactions
What ultimately led to the end of Eutrophication in the Black Sea?
Economic collapse