Primary Productivity Flashcards
Ecosystem
consists of all organisms and nonliving entities that occur and interact in a particular area at the same time.
Estuary
a water body where rivers flow into the ocean, mixing fresh water with saltwater—aquatic organisms are affected by the flow of water, sediment, and nutrients from the rivers that feed the bay and from the land that feeds those rivers.
Primary Production
The conversation of solar energy to the energy of chemical bonds in sugar during photosynthesis, performed by autotrophs.
Gross Primary Production
The total amount of chemical energy produced by autotrophs
net primary production
The energy that remains after respiration and that is used to generate biomass (such as leaves, stems, and roots)
secondary production
Some plant biomass is subsequently eaten by herbivores, which use the energy they gain from plant biomass for their own metabolism or to generate biomass in their bodies (such as skin, muscle, or bone)
productivity
The rate at which this conversion occurs