What are plankton? - NOAA's National Ocean Service
网页Plankton are marine drifters — organisms carried along by tides and currents. Phytoplankton blooms in the Barents Sea, shown in natural color from NASA's Aqua satellite on July 10, 2014.
Plankton - Wikipedia
网页In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish, and baleen whales. Marine plankton include bacteria, archaea, algae, protozoa, microscopic fungi, [4] and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries.
Plankton - National Geographic Society
网页2023年10月19日 · In addition to phytoplankton and zooplankton, two even smaller kinds of plankton can be found floating in the sea. Bacterioplankton are bacteria and virioplankton are viruses. Plankton can be found in saltwater and freshwater.
Plankton | Definition, Characteristics, Types, Diet, Size, & Facts
网页Plankton, marine and freshwater organisms that, because they are nonmotile or too small or weak to swim against the current, exist in a drifting state. Plankton is the productive base of both marine and freshwater ecosystems, providing food …
Plankton, explained - National Geographic
网页Plankton are a collection of tiny organisms that live at and beneath the surface of lakes, rivers, ponds, and oceans across the planet. They’re named for the Greek word planktos, meaning to...
Ocean Science: The power of plankton - Nature
网页2012年2月29日 · Phytoplankton comprise two main groups: photosynthetic cyanobacteria and the single-celled algae that drift in the sunlit top layers of oceans. They provide food, directly or indirectly, for...
What are phytoplankton? - NOAA's National Ocean Service
网页2024年6月16日 · Most phytoplankton are buoyant and float in the upper part of the ocean, where sunlight penetrates the water. Phytoplankton also require inorganic nutrients such as nitrates, phosphates, and sulfur which they convert into proteins, fats, and carbohydrates. The two main classes of phytoplankton are dinoflagellates and diatoms.
Marine ecosystem - Plankton, Microbes, Zooplankton | Britannica
网页2024年9月16日 · These microbes thrive on nutrients in seawater and are often photosynthetic. The plankton include a wide variety of organisms such as algae, bacteria, protozoans, the larvae of some animals, and crustaceans. A large proportion of the plankton are protists—i.e., eukaryotic, predominantly single
See the microscopic world of plankton in stunning detail
网页November 17, 2021. • 7 min read. Scoop up a cup of water anywhere on Earth, and you will find strange, entrancing life-forms called plankton. From brilliantly colored blobs to miniature monsters...
Major restructuring of marine plankton assemblages under
网页2021年9月1日 · Marine phytoplankton and zooplankton form the basis of the ocean’s food-web, yet the impacts of climate change on their biodiversity are poorly understood.