Eläinplanktonin

Eläinplanktonin, commonly referred to as zooplankton, are microscopic animals that drift in bodies of water. They are a crucial component of aquatic ecosystems, forming the base of many food webs. Zooplankton are diverse, ranging from single-celled protozoa to small crustaceans like copepods and krill, as well as larval stages of larger marine animals. Their size typically varies from a few micrometers to several millimeters, though some can be larger.

These organisms are found in all oceans and freshwater environments, from the surface layers to the deep sea. Their distribution and abundance are heavily influenced by factors such as water temperature, salinity, nutrient availability, and currents. Zooplankton play a vital role in nutrient cycling by consuming phytoplankton and detritus, and in turn, serving as a primary food source for larger animals, including fish, whales, and seabirds.

Reproduction in zooplankton can be rapid, with many species exhibiting high reproductive rates to compensate for predation and environmental challenges. Their life cycles often include distinct larval stages that may have different ecological roles and habitats compared to the adult forms. The study of zooplankton is essential for understanding the health and productivity of aquatic ecosystems and for fisheries management. Changes in zooplankton populations can indicate shifts in environmental conditions and the overall health of the water body.