Ocean Zones & Ecosystems

Front

Ocean Zones: Sunlight, Twilight, Abyssal

Back

Differ by light, temperature, pressure

Front

Photic Zone: Upper layer of ocean

Back

Sunlight penetrates, enabling photosynthesis; primary production fuels food chain.

Front

Hydrothermal vents: ocean floor fissures

Back

Release geothermally heated water; support unique ecosystems with extreme temperature organisms.

Front

Chemosynthesis process

Back

Uses chemical energy to produce carbohydrates; primary energy source for deep-sea ecosystems.

Front

Temperature variation in ocean zones

Back

Influences species distribution & metabolic rates (due to sunlight, depth, currents)

Front

Adaptations of deep ocean organisms

Back

Bioluminescence, pressure resistance, efficient food use

Front

Importance of hydrothermal vents

Back

Support unique ecosystems; insights into extremophiles & origins of life.

Front

Chemosynthesis vs Photosynthesis

Back

Chemosynthesis: inorganic compounds for energy; Photosynthesis: sunlight for energy.

Front

Challenges in deep ocean zones

Back

High pressure, lack of sunlight, scarcity of food

Front

Impact of human activities on ocean zones

Back

Negative effects: loss of biodiversity, ecosystem disruption. Need for conservation efforts.