Respuesta :
Answer:
With decrease in pH of ocean water, the survival rate of corals, algae, and fish in coral reef reduces.
Explanation:
Coral reefs find difficulty in living in acidic ocean water. It is so because the coral’s shell that is made up of calcium carbonate is unable to sustain in acidic environment.
Not only this the skeleton of snails, clams, algae , fish etc is also made up of calcium carbonate. Increased acidity leads to death of these species.
Thus, the lower is the pH of ocean water, the higher is its acidity and hence the lower is the probability of survival of corals, algae, and fish in the coral reef
pH is among the limiting factors that might affect coral, algae and other species. A decrease in water pH causes an increase in acidity, which leads coral, algae, and fish in the coral reef to death.
What is the relationship between corals and algae?
Corals are translucid or white, but they look brightly colored because they host symbionts with colorful photosynthetic pigments . They can host different organisms that live on and among them, giving place to an amazing ecosystem.
One of these organisms is the photosynthetic unicellular microalgae, called zooxanteles. Corals provide shelter and protection to the algae, while algae provide nitrogenated nutrients, sugars, and color to the corals.
This symbiotic relationship allows corals to grow in different environments that are poor in nitrogen or other nutrients, such as the tropical clear waters.
What are the limiting factors of corals and algae?
Limiting factors are environmental conditions that act directly on populations and individuals, limiting their distribution and growth.
Some of these factors are water, temperature, pH, salinity, and radiation.
When changes in any of these factors occur, corals react to these changes losing these algae and becoming translucid again.
pH is a significant limiting factor for coral survival because their calcium-carbonated shell is sensitive to acidic environments.
When there is a decrease in oceanic pH, occurs an increase in water acidity, causing coral, algae, and other organisms death.
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