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The word zooplankton is derived from Ancient Greek: ζῷον, romanized: zôion, lit. 'animal'; and πλᾰγκτός, planktós, 'wanderer; drifter'. [4] Zooplankton is a categorization spanning a range of organism sizes including small protozoans and large metazoans.
A planktivore is an aquatic organism that feeds on planktonic food, including zooplankton and phytoplankton. [1] [2] Planktivorous organisms encompass a range of some of the planet's smallest to largest multicellular animals in both the present day and in the past billion years; basking sharks and copepods are just two examples of giant and microscopic organisms that feed upon plankton.
Calanoida is an order of copepods, a group of arthropods commonly found as zooplankton. The order includes around 46 families with about 1800 species of both marine and freshwater copepods between them. [2]
For example, zooplankton are widespread microscopic animals and protists that feed on algae and detritus in the ocean, such as foraminifera. Microfauna also aid in digestion and other processes in larger organisms.
Zooplankton; However, there is a simpler scheme that categorizes plankton based on a logarithmic size scale: Macroplankton (200–2000 μm) Micro-plankton (20–200 μm) Nanoplankton (2–20 μm) This was even further expanded to include picoplankton (0.2–2 μm) and fem-toplankton (0.02–0.2 μm), as well as net plankton, ultraplankton.
Catla is a surface and midwater feeder. Adults feed on zooplankton using large gill rakers, while young ones feed on both zooplankton and phytoplankton. Catla attains sexual maturity at an average age of two years and an average weight of 2 kg (4.4 lb).
Zooplankton are partially responsible for the active energy flux between superficial and deep layers of the ocean. [ 25 ] [ 26 ] [ 27 ] Zooplankton species composition , biomass, and secondary production influence a wide range of trophic levels in marine communities, as they constitute a link between primary production and secondary consumers.
English: Dolch sight words from Pre-primary through 3rd Grade levels along with their phonetic Hindi counterparts. This is very useful for teaching correct pronounciation of essential english words to anyone familiar with the Hindi / devnagri script. Parents who don't know english can use this to teach the english words to their kids.