Primary production is the creation of new organic matter from inorganic substrates, and it is this organic matter that serves as the base of the food web for most marine consumers.

In the ocean, algae, phytoplankton and kelp are producers. Consumers are organisms that need to eat to obtain energy.

The producer also supervises the pre-production, production, and post-production stages of filmmaking. In this case, the main producer or executive producer may hire and delegate work to associate producers, assistant producers, line producers or unit production managers.

In the euphotic or epipelagic zone (the first 500 feet below the sea surface) cyanobacteria and phytoplankters receive enough light for photosynthesis. These tiny organisms are the primary producers of the entire pelagic regions.

A food chain is a single pathway connecting a producer with several levels of consumers. In a typical marine food chain, dinoflagellates convert energy from sunlight into food through photosynthesis and store it in their tissues. Copepods feed on dinoflagellates and incorporate this energy into their own tissues.

Introduction. The primary production stage of the supply chain encompasses agricultural activities, aquaculture, fisheries and similar processes resulting in raw food materials. Examples of primary production activities are: farming, fishing, livestock rearing and other production methods.

Primary production is the production of chemical energy in organic compounds by living organisms. The main source of this energy is sunlight but a minute fraction of primary production is driven by lithotrophic organisms using the chemical energy of inorganic molecules.

The open ocean is among the least productive ecosystems, yet it contributes greatly to the overall productivity of the biosphere. The open ocean is the least productive but has the most overall productivity because it is so vast and deep that it compensates for itself.

The most productive ecosystems are temperate and tropical forests, and the least productive are deserts and tundras.

epipelagic

Rain forests

The world’s ecosystems vary tremendously in productivity, as illustrated in the following figures. In terms of NPP per unit area, the most productive systems are estuaries, swamps and marshes, tropical rain forests, and temperate rain forests (see Figure 4).

The Web of Life. An ecosystem is made up of all the living animals and plants and the non-living matter in a particular place, like a forest or lake. All the living things in an ecosystem depend on all the other things – living and non-living for continued survival – for food supplies and other needs.

Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes. Net primary productivity ranges from 2–3 kg m-2 y-1 or higher.

The 9 Most Important Biomes. We profile nine biomes: ice cap, tundra, taiga, temperate forest, tropical rainforest, grassland, savanna, desert, and freshwater (lakes, rivers and wetlands).

Humans live in different countries and different areas of each country. Some might live in dry places, like desert biomes, those living in places that snow live in tundra biomes, some people live on mountains (mountain biome).

According to the Holdridge life zones system of bioclimatic classification Nashville, Tennessee is situated in or near the warm temperate moist forest biome.

The biome for the UK is a temperate deciduous forest.

There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these biomes can be further divided into more specific categories, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga.