Jordan's rule

Jordan's rule

Jordan's rule named after the father of American ichthyology David Starr Jordan describes the inverse relationship between water temperature and meristic characteristics. The most common found relationship is for fin ray, vertebrae, or scale numbers to increase with decreasing temperature.


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  • Jordan’s rule — Jordan’s rule. См. правило Джордана. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Jordan's Rule — 1) fish develop more vertebrae in cold environments than in warm ones 2) the closest relative of a species are found immediately adjacent to it but isolated by a geographical barrier …   Dictionary of ichthyology

  • JORDAN, HASHEMITE KINGDOM OF — (Ar. al mamlaka al Urdunniyya al Hashimiyya), an independent state in W. Asia, bordering on Israel and the West Bank of the Jordan River in the west, saudi arabia in the south and southeast, iraq in the east, and syria in the north. Transjordania …   Encyclopedia of Judaism

  • Jordan I of Capua — Jordan I ( it. Giordano) (died 1091), count of Aversa and prince of Capua from 1078 to his death, was the eldest son and successor of Prince Richard I of Capua and Fressenda, a daughter of Tancred of Hauteville and his second wife, also named… …   Wikipedia

  • Jordan of Hauteville — (born after 1056 died 12/18/19 September 1092) was the eldest son and bastard of Roger I of Sicily. A fighter, he took part, from an early age, in the conquests of his father in Sicily. In 1077, at the siege of Trapani, one of two Saracen… …   Wikipedia

  • Jordan Popjordanov — Jordan Orce Popjordanov (Macedonian: Jorдaн (Opцe) Пoпjopдaнoв) (1881 in Veles April 17, 1903 in Thessaloniki) was an ethnic Macedonian revolutionary. He is most known for being in Gemidzhii Circle or the Assassins from Salonica who in the spring …   Wikipedia

  • jordan — /jawr dn/, n. Brit. Dial. See chamber pot. [1350 1400; ME jurdan urinal, perh. after JORDAN, the river, by coarse jesting] * * * Jordan Introduction Jordan Background: For most of its history since independence from British administration in 1946 …   Universalium

  • Jordan — Jordanian /jawr day nee euhn/, n., adj. /jawr dn/; for 3 also Fr. /zhawrdd dahonn /, n. 1. David Starr /stahr/, 1851 1931, U.S. biologist and educator. 2. June, born 1936, U.S. poet, novelist, and essayist. 3. Marie Ennemond Camille /mann rddee… …   Universalium

  • Jordan — Infobox Country native name = المملكة الأردنية الهاشميه Al Mamlakah al Urdunniyyah al Hāšimiyyah ar icon conventional long name = The Hashemite Kingdom of Jordan common name = Jordan national anthem = عاش الملك The Royal Anthem of Jordan… …   Wikipedia

  • Jordan Peele — Infobox actor name = Jordan Peele imagesize = 200px caption = birthname = Jordan Peele birthdate = birth date and age|1979|2|21 location = New York City, New York USA deathdate = deathplace = height = othername = homepage = notable roles =… …   Wikipedia

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