What are factors that can affect the abundance and distribution of plankton in aquatic ecosystem?

The abundance of phytoplankton in aquatic can fluctuate in type and amount due to differences in nutrient content. Predation by zooplankton or herbivorous fish and tidal occurrence of sea water. Tides can affect plankton abundance and distribution. In high tide conditions.

What affects plankton abundance?

Plankton are drifting organisms that inhabit the water column of oceans, seas, and bodies of fresh water. Plankton abundance and distribution are strongly dependent on factors such as ambient nutrients concentrations, the physical state of the water column, and the abundance of other plankton.

What are the controlling factors of phytoplankton and zooplankton diversity in ocean?

Salinity, dissolved oxygen and pH may be responsible for the variations in phytoplankton and zooplankton community structure.

What are some of the threats to phytoplankton in the ecosystem?

Because the aquatic food chain depends so heavily on plankton, the survival of these tiny plants and animals is essential for healthy marine ecosystems. Climate change and rising sea temperatures pose serious risks to plankton populations.

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What affects biodiversity of plankton?

Planktonic communities are highly dynamic with assemblages changing rapidly in response to circulation and fertilization patterns and other physical and environmental forcing. … Therefore, planktonic biodiversity is affected by the physical environment, water hydrography, and biotic variables (Sarker et al., 2018).

How does water temperature affect plankton?

In addition, under non-limiting nutrient conditions, an increase in water temperature increases phytoplankton nutrient uptake [49,50]. Moreover, phytoplankton growth rates increases with increasing of temperature, almost doubling with each 10°C increase in temperature (Q10 temperature coefficient) [51].

Where are Nekton found in the ocean?

Nekton are usually pelagic, living in the water column, but some are demersal and live close to the bottom, both in the coastal and oceanic habitats.

What biotic and abiotic factors regulate the abundance of phytoplankton?

In conclusion, the growth and succession of the different phytoplankton species in Lake Maarsseveen I was regulated by several interacting, biotic and abiotic factors. Phosphorus limitation, parasitism, iron limitation, light and temperature were the important steering factors.

What factors influence phytoplankton biomass?

They also require trace amounts of iron which limits phytoplankton growth in large areas of the ocean because iron concentrations are very low. Other factors influence phytoplankton growth rates, including water temperature and salinity, water depth, wind, and what kinds of predators are grazing on them.

Is zooplankton biotic or abiotic?

Zooplankton were counted as in the 1990 Biotic Factors Experiment.

How does phytoplankton abundance affect weather and climate?

Phytoplankton has an impact on climate change by reducing atmospheric CO2 levels through the sinking of produced organic and inorganic matter to the deep ocean. … Reduced frequency of cold winters and unusual types of phytoplankton succession have also been reported in some regions.

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How are plankton affected by climate change?

Some plankton, such as diatoms, grow better at cooler temperatures. Warming may cause other, less palatable, species to replace them, depriving zooplankton and menhaden of their primary food source. Because phytoplankton are linked to freshwater and nutrient inputs, draught will likely decrease their abundance.

How does water pollution affect phytoplankton?

A pivotal trophic level impacted by pollution in the marine environment is phytoplankton, known for their role as microscopic primary producers and base of aquatic food webs. Pollution affects phytoplankton communities at different levels – abundance, growth strategies, dominance and succession patterns.