Question

All of the following apply to estuaries EXCEPT: There provide very valuable breeding grounds for commercially important fish and shellfish. There is no salinity in estuarine ecosystems due to large supply of fresh water from a river. Plants and algae that grow here have high tolerance for changing environmental conditions like salinity and light penetration. These coastal ecosystems provide a barrier against the ocean during storms.

Answer 1

Estuaries provide valuable breeding grounds for commercially important fish and shellfish and serve as a barrier against the ocean during storms. However, the statement that there is no salinity in estuarine ecosystems due to a large supply of fresh water from a river is incorrect. Salinity is an important factor that influences organisms and their adaptations in estuaries.

Step-by-step explanation:

Estuaries are biomes where fresh water from a river meets the ocean, resulting in a diluted saltwater. They provide valuable breeding grounds for commercially important fish and shellfish. The plants and algae in estuaries have high tolerance for changing environmental conditions like salinity and light penetration. Additionally, estuaries serve as a barrier against the ocean during storms. However, the statement that there is no salinity in estuarine ecosystems due to a large supply of fresh water from a river is incorrect. Salinity is an important factor that influences organisms and their adaptations in estuaries, and the salinity of estuaries varies based on the rate of flow of freshwater sources.

Answer 2

There is no salinity in estuarine ecosystems due to large supply of fresh water from a river.

Step-by-step explanation:

An estuary is a semi-closed body of water where fresh water and sea water meet and merge. Even though they are not a habitat to diverse species, they are very valuable breeding grounds and are one of the most productive environments. It is true that plants and algae that grow there have high tolerance for changing environmental conditions like salinity and light penetration because fluctuations happen from time to time because of the influence of the tides. And because of the partially enclosed nature of estuaries, there is provision for a barrier against the ocean during storms.

But despite the supply of fresh water, there is actually salinity in estuarine ecosystems which also varies depending on the concentration of sea water to fresh water.