In an aquatic ecosystem, the algae and phytoplankton are responsible for primary productivity. All BUT ONE factor usually influences the primary productivity of a marine ecosystem. That is?
-Water salinity
-light intensity**
-water temp.
-available nutrients
Correct?
Is it?
I think its water temp
yall its water salinity
What is it ._.
Correct, the factor that does not usually influence the primary productivity of a marine ecosystem is light intensity. To determine this, you can consider the following information:
Primary productivity refers to the rate at which photosynthetic organisms convert solar energy into organic matter through the process of photosynthesis. In aquatic ecosystems, algae and phytoplankton are responsible for the majority of primary productivity.
When it comes to the factors influencing primary productivity in a marine ecosystem, water salinity, water temperature, and available nutrients all play significant roles. These factors affect the growth and reproduction of algae and phytoplankton, which in turn influence primary productivity. Higher salinity levels can inhibit the growth of algae and phytoplankton, while optimal water temperature conditions allow for more efficient metabolic processes. Adequate nutrient availability, such as nitrogen and phosphorus, is essential for the growth and reproduction of these primary producers.
However, light intensity is not a limiting factor for primary productivity in most marine ecosystems. Since light is readily available in the sunlit surface layers of the ocean, it is generally not a limiting factor for photosynthetic organisms. Algae and phytoplankton rely on light energy for photosynthesis, and light is abundant in marine environments, especially in the surface waters where these organisms predominantly reside.
Therefore, of the options provided, light intensity is the factor that usually does not influence the primary productivity of a marine ecosystem.