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Path: utzoo!jackson
From: jackson@utzoo.UUCP (Don Jackson)
Newsgroups: net.bio
Subject: Re: Landlocked Salmon 
Message-ID: <7085@utzoo.UUCP>
Date: Fri, 5-Sep-86 09:41:08 EDT
Article-I.D.: utzoo.7085
Posted: Fri Sep  5 09:41:08 1986
Date-Received: Fri, 5-Sep-86 09:41:08 EDT
Organization: U of Toronto Zoology
Lines: 23


The fact of finding a landlocked species of migratory fish is  not  extraordi-
nary.   Many  species of fish normally spend the majority of their life in ei-
ther fresh or saltwater and are found briefly in the  other  system.  A  large
number  of  these  can maintain reproducing populations in a landlocked situa-
tion.

Many species, such as the sea lamprey, shad, alewife, etc. are thriving in the
Great Lakes, even though they may not have naturally occurred there and cannot
return to the Atlantic Ocean.  Similary, a number of species may be  found  in
much  smaller  inland  lakes  (i.e.  => 5 ha in surface area) throughout North
America.  Salmonids, such as the Arctic char and Atlantic salmon are found  in
small lakes in Quebec, the Arctic and Newfoundland.

Name:   Don Jackson
Mail:   Dept. Zoology, Univ. Toronto
        Toronto, Ontario, Canada    M5S 1A1
UUCP:   {allegra,ihnp4,linus,decvax}!utzoo!jackson
-- 
Name:   Don Jackson
Mail:   Dept. Zoology, Univ. Toronto
        Toronto, Ontario, Canada    M5S 1A1
UUCP:   {allegra,ihnp4,linus,decvax}!utzoo!jackson