[fish] The pollan or Irish pollan (Coregonus pollan) is a freshwater whitefish known only from five Irish lakes, Lough Neagh, Lower Lough Erne, Lough Ree, Lough Derg, and Lough Allen. ==Conservation status== The pollan populations are threatened by ecosystem changes such as eutrophication and increases in introduced species, including pike,...
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http://en.wikipedia.org/wiki/Pollan_(fish)

• (n.) A lake whitefish (Coregonus pollan), native of Ireland. In appearance it resembles a herring.
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http://thinkexist.com/dictionary/meaning/pollan/
Pol'lan noun [ Confer Gael.
pollag a kind of fish.]
(Zoology) A lake whitefish (
Coregonus pollan ), native of Ireland. In appearance it resembles a herring.
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http://www.encyclo.co.uk/webster/P/118

The pollan (Coregonus pollan) is a fresh-water fish of the family Salmonidae, found in the Irish lakes.
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http://www.probertencyclopaedia.com/browse/BPA.HTM
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