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Paramecium is a genus of eukaryotic, unicellular ciliates, commonly studied as a model organism of the ciliate group. Paramecium are widespread in freshwater, brackish, and marine environments and are often abundant in stagnant basins and ponds. Because some species are readily cultivated and easily induced to conjugate and divide, they have been widely used in classrooms and laboratories to study biological processes. The usefulness of Paramecium as a model organism has caused one ciliate researcher to characterize it as the "white rat" of the phylum Ciliophora.
Krill are small and exclusively marine crustaceans of the order Euphausiacea, found in all the world's oceans. The name "krill" comes from the Norwegian word krill, meaning "small fry of fish", which is also often attributed to species of fish.
Bromus is a large genus of grasses, classified in its own tribe Bromeae. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses. Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species.
Thysanoessa is a genus of the krill that play critical roles in the marine food web. They're abundant in Arctic and Antarctic areas, feeding on zooplankton and detritus to obtain energy. Thysanoessa are responsible for the transportation of carbon and nutrients from surface waters to deeper trophic levels. This genus serves as prey for various fish and provide energy to marine ecosystems as they are at a low trophic level. Most travel through vertical migration, meaning they travel up and down in the water column, providing food for predators at the surface during the night, and at deeper levels during the day.
Thysanoessa raschii, sometimes known as Arctic krill, is one of the most common euphausiid species of the subarctic and Arctic seas. They may reach 20–25 millimetres (0.8–1.0 in) long, and are sexually mature above 14 mm (0.6 in).
Nepenthes inermis is a tropical pitcher plant endemic to the Indonesian island of Sumatra. The specific epithet inermis is Latin for "unarmed" and refers to the upper pitchers of this species, which are unique in that they completely lack a peristome.
Nepenthes × pyriformis is a natural hybrid involving N. inermis and N. talangensis. It is known only from Mount Talang in Sumatra, to which N. talangensis is endemic. Nepenthes talangensis was only described as a distinct species in 1994. Prior to this it was placed within N. bongso and some of the older literature identifies this hybrid as N. bongso × N. inermis.
The Solomon's naked-backed fruit bat is a species of megabat in the family Pteropodidae. It is endemic to the Solomon Islands.
Ferocactus glaucescens, the glaucous barrel cactus, is a species of flowering plant in the family Cactaceae, native endemic to México.
The ciliates are a group of alveolates characterized by the presence of hair-like organelles called cilia, which are identical in structure to eukaryotic flagella, but are in general shorter and present in much larger numbers, with a different undulating pattern than flagella. Cilia occur in all members of the group and are variously used in swimming, crawling, attachment, feeding, and sensation.
Euplotes is a genus of ciliates in the subclass Euplotia. Species are widely distributed in marine and freshwater environments, as well as soil and moss. Most members of the genus are free-living, but two species have been recorded as commensal organisms in the digestive tracts of sea urchins.
Sebastes inermis, the Japanese red seaperch or dark-banded rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the northwestern Pacific Ocean. This species is known as mebaru in Japan and as bollak (볼락) in Korea.
Sepiella inermis is a species of cuttlefish in the family Sepiidae. S. inermis is indigenous to the Indo-Pacific region. In this region, Sepiella inermis is an economically important species, and is sold and eaten.
Liostomia beringensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Colliniidae is a family of ciliates of the order Apostomatida.
Collinia is a genus of parasitoid ciliates of the Colliniidae family.
Collinia oregonensis is a species of parasitoid ciliates of the Colliniidae family. It is known to infect the krill Euphausia pacifica, Thysanoessa spinifera, and Thysanoessa gregaria off the coast of Oregon and Washington. It caused a mass mortality of E. pacifica in June 2001 at the base of Astoria Canyon.
Tracheloraphis is a genus of ciliates in the family Trachelocercidae.
Otukaia beringensis is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Collinias is a genus of flies belonging to the family Pipunculidae.
References
- "Discovery of an apostome ciliate (Collinia beringensis n. sp.) endoparasitic in the Bering Sea euphausiid Thysanoessa inermis" (PDF). Diseases of Aquatic Organisms. 1: 141–146. July 1986. doi: 10.3354/dao001141 .
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