Microplankton is a term used to describe tiny organisms that are found in seawater. The IPA phonetic transcription of this word is /maɪkrəʊplæŋktən/. The word is broken down into four syllables: mi-cro-plank-ton. The sound /maɪ/ represents the diphthong "ai," which is pronounced like "eye." The "k" sound in "kro" is pronounced as a hard "k," while "plank" is pronounced with a short "a" sound. The last syllable, "ton," has a schwa sound followed by a "t" sound. Together, these sounds create the pronunciation of "microplankton."
Microplankton refers to the microscopic organisms living in aquatic ecosystems that form the basis of the food chain and play a vital role in the marine ecosystem's overall productivity. These organisms are defined by their small size, typically ranging from 20 to 200 micrometers, and are usually invisible to the naked eye. Microplankton encompasses a diverse group of organisms, including single-celled plants known as phytoplankton and small animals called zooplankton.
Phytoplankton, a subgroup of microplankton, are primarily responsible for producing organic compounds through photosynthesis, similar to terrestrial plants. They are composed of various species, including diatoms, dinoflagellates, and coccolithophores, which differ in shape, size, and pigmentation. These microscopic plants are not only crucial for the production of oxygen but also serve as the primary food source for zooplankton and other higher-level organisms in the marine food chain.
Zooplankton, another component of microplankton, consists of tiny invertebrate animals such as copepods, rotifers, and krill. They primarily feed on phytoplankton and are preyed upon by larger organisms like fish and whales. Therefore, the health and abundance of microplankton have significant implications for the entire marine food web.
Understanding microplankton is crucial to monitor the health of aquatic ecosystems, as changes in their composition or abundance can impact the productivity and sustainability of marine environments. Scientists rely on specialized equipment, such as plankton nets and microscopic analysis, to study these microscopic organisms and assess their ecological significance within marine ecosystems.
The word "microplankton" is derived from the Greek roots "micro-" meaning small and "plankton" meaning wanderer or drifter.
The term "plankton" itself comes from the Greek word "planktos", which means "able to drift" or "wanderer". It was first coined by German marine biologist Victor Hensen in 1887.
The prefix "micro-" is commonly used in scientific terms to denote something small or on a microscopic scale. In the case of "microplankton", it refers to small or microscopic organisms that drift or float in aquatic environments.