Whitby Free Press, 6 May 1992, p. 17

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Lynd eCreek to, receivelapr1id teatet Lynde 'Creekin -WhVtby i!a one. Of the :tributaries of Lakes Ontario and Erie .scheduled for la ni riidetreatment in 1992. gTheDepartment 'of Fisheries and Oceans, acting as the Canadian' Agent for the Great Lakes-Fishery. Commission, la the responsibility for performing sea Iamprey control in the Canadian waters. of, the . Great Laites basin, and in the, Unite Stte NeW -York) tributaries, of Lâke:Ontario.ý Portions of- Lynde Creek wMl be'treated w ithin the-' next few nxonths. Sea laniprey <POPulations in Lakcos Erie, and Ontih a't- this time» are a-t levais -that ilow acceptable survival andgrthf desirable fish species.. In order ,ta evaluate the effectiveness Of the, control programn, the spawnngrun of aduit sea lamprey is continuously monitored by the Sea Lamprey Control Centre through the oporation of aduit traps. In 1992, traps wiil be operated, on six Lake Ontario streams: Humber River , Duffins, Bowmanville, Graham, Port Britain and ,-Siielter Valley =,eks-and on two 'Lake Erie stem Big* Otter and Young's; "Stream, surveys utilizing electrofishersi or chemical methods,' wiil be conducted throughout the summer on 43 Lake Ontarioanaxd 10 Lake Erie tributaries, < an& evaluate re-established populations ,or identl~ new sources- of 1 ea ealamprey are not eels-. although ,bearig a supiierfcial resemblance, they have no jaws no scales, no swim-bladder anà lack the paired fins and bones comon a naitfisii. They are- native ta the Atlantic' Ocean where they have an anadromous life cycle freshwater ta -marine ta freshwater). They moved into Lake Ontario and becamée cornmon there in the late 1880s. By the niid-1930s, sea lampreys were established in ail five of te Great, Lakes.' .The lamprey attaches itself ta flsh with its sucixig disk. and horny teeth. Its sharp tangue rass through scales- and idn, alloWing it tofeed on body fluids that often. results -in the death of the flshi 1 --Now, sea lamprey, controi depends imainly upon the. carefullycontrolled applcation of selective, lampricides (oxcants) ta streams ,harb ouring -s ea lamnprey larvrae. At proper intervals (normaily three ta five years), 'retreatments are necessary téa prevýent> the escapement of re-established sea, lampey opuations. Deetion, and evaluation of. sea .Iampreýy' larval populations is, the function of stream s urveèy. teains who, systematicaily examiune al Great LIakes' tributaries usingelectrofishers or a granular- formulation of lampricide. Xssàsment of oea laxnprey spwng runs. IS carried ,out toghthe 'use of portable traps, flshed'in,,selected streams, and also by means of permanent traps inicorporated inita sea amprey barrier, daxnsthat are beingbuilt ta "prevent lamprey acess inta. the -,ýheadwater armas Of, difficult-ta-treat tributaries. :Stream veloities and volume, are me4asured, . and water chemistry testsanidhboassays, are conducted toAdetermine proper, treatment concentrations. The, lampricide, is applied for poriods.of .12 ta 18 ihours and, nioves dwnstream as" a- block, kilhing .larval l and adult sea lamiprey in its path. Sunbirds pullng out ail thle so s ai% A à' Àoom%, . Àooml Àdoo%,* l with $1,000, .cashback applied.or. choose 7.9% 48-month financing** From under. Pontiac Sunbird LEI Sedan Stopping power! Pontiac'Sunbird features standard, anti-lôck brakes. 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