Many physical features dictate life in an estuary.The physical feature with the most influence on organismal distribution is

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Salinity plays a critical role in determining the types of organisms that can survive in an estuary. Estuaries are where freshwater and saltwater meet, leading to fluctuating salinity levels that can be challenging for many species to adapt to. Some organisms are adapted to live in high salinity environments, while others thrive in low salinity areas. Therefore, salinity has the greatest influence on organismal distribution in an estuary.

Many Physical Features Dictate Life in an Estuary