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how are phytoplankton affected by the change in seasons

• Phytoplankton variability driven by changes in water column structure and nutrient. Some of these effects are global, some remain regional. ... scientists can learn more about how these plants may be contributing to and affected by, climate and environmental change. Phytoplankton produce about 50% of the global biomass and take up an equal amount of CO2 from the atmosphere as all terrestrial ecosystems taken together. Productivity of phytoplankton depends on a number of environmental factors many of which are altering with climate change. Anthropogenic influences on the climate will change these conditions. 2009) (Nicholls, et al. Shellfish are also in danger from the effects of ocean acidification. This pair of images shows changes in sea surface temperature (top) and phytoplankton productivity (bottom) between 2000 and 2004, after the last strong El Niño event, which occurred between 1997-1998. Moreover, the dominant species of phytoplankton may also change between different seasons within a year . As diverse as these effects can be, changes to phytoplankton communities will occur as well. • Spring diatoms were replaced by haptophytes and dinoflagellates in summer. However, the impact of changes in the dynamics of sea ice specifically on phytoplankton spring blooms, a major contributor of the annual primary production in the Arctic Ocean, remains poorly known. Phytoplankton are very sensitive to mineral availability, including nitrate and iron, and also to light. These changes are mainly influenced by physical-chemical (bottom-up effects) and predation (top-down effects) through the aquatic food web [10,11]. Seasonal phytoplankton variability in the southern Patagonian shelf was assessed. Here we report on their temporal and spatial variabilities in open waters between 2003 and 2013 using satellite ocean color data. That includes humans. Phytoplankton; small cells that use photosynthesis to turn sunlight into food that live near the surface of the ocean. 1999). • Higher phytoplankton biomass was observed during spring. Because phytoplankton migration would cause marine life to move with it (or die, should organisms fail to adapt quickly enough to the change in their environment), that has the potential to affect fisheries and other economies in the coastal areas. How plankton change the climate: Plankton affect our planet far more then their-size suggests. These changes in phytoplankton affect the zooplankton composition promoting shifts . Phytoplankton are highly dependent on a diversity of nutrients and influenced by physical and chemical properties in the ocean. “Because with climate change you have less mixing of the water column, we thought that the phytoplankton would have more access to light and they would simply expand, but instead we saw these bands of high and low abundance,” Cabré says. Phytoplankton are the base of the Antarctic food web, sustain the wealth and diversity of life for which Antarctica is renowned, and play a critical role in biogeochemical cycles that mediate global climate. Biodiversity of the ocean will change as the health of phytoplankton change (Rogelj, et al. The name comes from Greek terms, phyton or “plant” (“planktos”), meaning “wanderer” or “drifter”. There also responsible for about half of the Earth's primary production. Phytoplankton are microscopic plants that live in the ocean. Ecology of Shellfish. For example, oysters utilize phytoplankton as a food source. Are microscopic plants that live in the ocean Patagonian shelf was assessed be, to! Be, changes to phytoplankton communities will occur as well of nutrients and influenced by physical and chemical in! Into food that live near the surface of the Earth 's primary production properties in the ocean a source. 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