Marine life asexually by binary fission, fragmentation, or budding; unlike bacteria and eukaryotes, no known species forms spores. Archaea are particularly numerous in the oceans, and the archaea in plankton may be one of the most abundant groups of organisms on the planet. Archaea are a major part of Earth's life and may play roles in both the carbon cycle and the nitrogen cycle. Of eukaryotic groups, the protists are most commonly unicellular and microscopic. This is a highly diverse group of organisms that are not easy to classify. Several algae species are multicellular protists, and there are marine slime molds have
Hawaiian freshwater goby Hawaiian freshwater goby The Hawaiian freshwater goby, "Lentipes concolor" ("‘o‘opu ‘alamo‘o "or "‘o‘opu hi‘u koleis"), is a species of goby endemic to Hawaii, where it occurs in mountain streams. Males of this species can reach a standard length of , while females only reach . This species is important to the native people as a food fish. In Ancient Hawaiʻi, this species, and others such as mullet and "Kuhlia sandvicensis", were cultivated in a form of freshwater aquaponics or aquatic polyculture. In this system of farming, the taro in the upland paddies (taro being the primary staple in Ancient Hawaiʻi)