Life in the Ocean

Matter Energy

Biogeochemical Cycles Carbon Nitrogen Phosphorus Silicon

Iron and Other Trace Metals Limiting Factors Evolution and Life in the Ocean Classification of Oceanic Life

Physical Factors Affecting Marine Life Light Temperature Metabolic rate Ectothermic endothermic Salinity Dissolved Nutrients Dissolved Gases Hydrostatic Pressure Interplay of Factors

Biological Factors Passive transport Active transport Diffusion, Osmosis Active transport Surface to Volume Ratio Gravity and Buoyancy Viscosity and Movement Drag turbulence Water Movement

Gravity and Buoyancy

Classification of the Marine Environment Classification by Light Photic Zone Euphotic Disphotic Aphotic Zone

Classification by Location Pelagic zone Neritic Oceanic Epipelagic Mesopelagic Bathypelagic Abyssopelagic Benthic Subneritic Littoral sublittoral Suboceanic Bathal Abyssal Hadal

Classification by Behavior Plankton Nekton