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).
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 are some characteristics that help the plankton live in their environment?
Because phytoplankton are tiny, they don’t weigh very much and they have a large surface area relative to their volume, which helps them float. Adaptations such as spines increase the surface area even more and prevent phytoplankton from sinking too fast.
What happens if plankton dies?
Plankton are the base of the marine food web, without them all larger organisms will probably die. No plankton=no fish= no food for millions of people. Without ocean life millions (if not billions) of people will start to starve.
Why is plankton diverse?
Diversity in a Warming Ocean
That is, as high-latitude waters warm to tropical temperatures, plankton biodiversity in those regions will likely boom. … “Plankton are at the very base of the ocean food chain, so if they change, the higher organisms eating the plankton may change as well.”
What are important abiotic and biotic features that might affect plankton biodiversity?
Biotic factors include plants, animals, fungi, algae, and bacteria. Abiotic factors include sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability. Ocean ecosystems are impacted by abiotic factors in ways that may be different from terrestrial ecosystems.
What factors affect the distribution of life in the ocean?
Long-term changes in temperature, carbon dioxide content (acidification), oxygen levels, nutrient availability, currents, salinity, and sea-ice extent affect marine life and lead to large-scale shifts in the patterns of marine productivity, biodiversity, community composition, and ecosystem structure.
What are the characteristics of zooplankton?
The zooplankton include animals suspended in water with limited powers of locomotion. Like phytoplankton, they are usually denser than water, and constantly sink by gravity to lower depths.
Why do some plankton migrate vertically?
The most widely accepted hypothesis as to why zooplankton migrate vertically in water columns is the predator-evasion hypothesis (Dagg et al. 1997). This hypothesis explains the migration as an antipredator defense in which zooplankton typically descend to dimly lit areas during the daylight to avoid visual predators.
Does plankton need sunlight to survive?
Phytoplankton, also known as microalgae, are similar to terrestrial plants in that they contain chlorophyll and require sunlight in order to live and grow. Most phytoplankton are buoyant and float in the upper part of the ocean, where sunlight penetrates the water.
How do plankton increase drag?
Although it may seem like one long snakelike organism, each cell is actually distinct and separate from the neighboring cell. By joining together they increase their surface area. This increases drag and slows down sinking.