GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Freshwater ecosystems are nutritionally limited by
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Iron and Nitrogen
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Phosphorous and Carbon
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Nitrogen and Calcium
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Phosphorous and Iron
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Explanation:
Detailed explanation-1: -Phosphorous is the most limiting nutrient in the freshwater ecosystem.
Detailed explanation-2: -Generally, phosphorus is the limiting nutrient in freshwater aquatic systems.
Detailed explanation-3: -In coastal waters, nitrogen is commonly the key limiting nutrient of marine waters (unlike the freshwater systems where phosphorus is often the limiting nutrient).
Detailed explanation-4: -Within the estuarine to coastal continuum, multiple nutrient limitations occur among nitrogen, phosphorus, and silicon along the salinity gradient and by season, but nitrogen is generally considered the primary limiting nutrient for phytoplankton biomass accumulation.
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