stenohaline organism

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• Stenohaline — describes an organism, usually fish, that cannot handle a wide fluctuation in the salt content of water. [ [http://www.ca.uky.edu/wkrec/VertebrateFishEvolution.htm Wurts, W. Why can some fish live in freshwater, some in salt water, and some in… …   Wikipedia

• stenohaline — adjective Etymology: International Scientific Vocabulary sten + Greek halinos of salt, from hals salt more at salt Date: circa 1920 of an aquatic organism unable to withstand wide variation in salinity of surrounding water …   New Collegiate Dictionary

• stenohaline — adj. [Gr. stenos, narrow; halinos, saline] Any organism capable of withstanding only slight variations of salinity in its environment; stenosalinity; see euryhaline …   Dictionary of invertebrate zoology

• stenohaline — Descriptive of an organism that is unable to tolerate a range of salinities …   Dictionary of molecular biology

• stenohaline — |stenə|hāˌlīn, haˌ , lə̇n adjective Etymology: International Scientific Vocabulary sten + haline (from Greek halinos of salt, from hals salt) more at salt of an aquatic organism : unable to withstand wide variation in salinity of the surrounding… …   Useful english dictionary

• biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …   Universalium

• Osmoregulation — is the active regulation of the osmotic pressure of an organism s fluids to maintain the homeostasis of the organism s water content; that is it keeps the organism s fluids from becoming too diluted or too concentrated. Osmotic pressure is a… …   Wikipedia

• marine ecosystem — Introduction       complex of living organisms in the ocean environment.       Marine waters cover two thirds of the surface of the Earth. In some places the ocean is deeper than Mount Everest is high; for example, the Mariana Trench and the… …   Universalium

• Salinity — Annual mean sea surface …   Wikipedia

• Fish migration — Many species of salmon are anadromous and migrate long distances up rivers and streams to spawn. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres… …   Wikipedia

• euryhaline — [yo͞o΄ri hā′līn΄, yoor΄əhal′īn΄, yoor΄əhal′īn΄] adj. 〚Ger euryhalin < eury , EURY + Gr halinos, saline < hals, SALT〛 Biol. able to exist in waters widely varying in salt content: opposed to …   Universalium