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Lethbridge Herald Newspaper Archives

- Page 28

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Lethbridge Herald, The (Newspaper) - August 26, 1971, Lethbridge, Alberta 28 THE LETHBRIDGE HERAID Thursday. Aunusl 26, 1971 O I' II K I! II SI.AIN JACKSON (ii-m-gia Jack- son, the mollier nf slain Soil' clilll ISriillicr lining Jackson 1-laiim'll that San guards sliol IIIT in his u c I 1 ami ill'ilWll his lllllly into n prison cunrl} iinl. lake BCRUNtJW.V Onl. 'CP1 Ji'st as ;i dying patient gets con- I slant checkups by a doctor. dying Lake undergoes yearly diagnosis by scientific ship.-.' operated by the Canada Centre [or Inland Waters here. The MV Mailin Karlsen un-j dertook a moniloiillg cniise last week, the results of uhic.il indi- cate a maicr storm on the Like earlier this month rejuvenated the h'ko's industrialized Ameri- can shore, but left a portion of llic Canadian shore r.car Point Pelce starvec. of oxygen. Douglas Bracks, operations; officer at the centre, said the j fid-station mnniloiing cnii.se in- dicated the fiarm in effect had turned over tiio lake waters, j "Normally we find the oxy- gen-deplclcd v.- a t e r s concen- trated in the southwestern cor- ner of the central basin." he said. ''But because of the storm the water was ovorlurncd to the point where it presented us will a confused picture." Dr. Mary Thompson, head of the chemical limnology section of the centre, said extensive studies last year demonstrated that a natural mixing of the lake's w a t c r s occurs each spring. The natural mixing is. so thorough that nutrient levels are almost uniform throughout (he lake and algae grow vigorously whenever the right combination of sunlight and warmth occur. depletion takes place when the. algae die, sink to the bottom and decay. EXPECTS Ql'ICK CHANGE Dr. Thompson said that the comparatively high lev- els produced by the storm along the south shore are likely to be short-lived in view of the high inputs of nutrients from large U.S. cities. "A few weeks of calm weather and we could still have the whole basin anoxic (oxygen she said At one sampling station near Point Pclec dissolved oxygen measured .17 parts per million, compared with a minimum standard of six parts per million proposed lor a Canada-U.S'. wa- ter-quality agreement for the lower Greal Lakes. The data compiled by Ihe 16-j man scientific and lechn i c a 1 crew indicates that deep-water fish could survive only in the eastern basin which lies east of a line beuteen Long Point on Lake Eric .south of Brantfurd, and Eric, Pa. The only portion of the central basin witii satisfactory levels of dissolved oxygen is a section about 10 miles wide along Lhe international boundary line. U'ESTEHN CAHT HICTTKI! The western basin, naiglily Ihc portion of the lake ues.t of Point Pclce. was well oxygen- ated because of its shallow: depfn v.hieh averages 10-1.1 m c f r s. Besides monitoring 'jonlenl. the Karlsen look thousand samples! of water for laboratory analysis; which will spot any trend in j concentrations of mcrcrry and; other metals. It also kfpl accolinl "f U-.' Is, of niilricnU and sanipks nidi-j rated there arc enough algae blooms to take all the nitrogen J and phosphorus from the sur- face wafers. Thd Karlsen, along wilh tho Limnos, another cenlrc vessel, has been concentrating Ibis in lakes Ontario, Huron and Suiienor. Clean own mess SAX DIWJO, Calif. (Uculcr) than 200 sailors and marines arc cleaning up oil do- lhn heach of Presi- dent Xixim's Western While Ilor.se at San Clcmcnfc and from other beaches in norlhern Diego ('dimly. The deposits came from a lium slick acridfntidK dumped Knday by a U..S. tanker. Jeans 'n' shirts ride high this Fall! Pick a winner for Fall jeans and shirls! Greal starters for your cool- weather wardrobe. Discover a super new breed of jeans beautifully tailored in velvety corduroy (fine pinwale or plush Chosse the slim Western style or hip-riding flares. Team them wilh racy liti'e shirls in sofl leather knit in mini- care Sleek body- hugger or classic man-slyle. They'll be high on your list of Fall favour- ites! Sizes 8 1o 16. C.T. 9-DO. 11 .so if QQ Qft Jeans No-wale corduroy jeans, wide flare legs. Navy, brown, black, purple. 11.00. body shirl. Sail, Navy, purple. classic shirt. Salt, navy, purple Sportswear, Main Floor EATON'S Open Tonight until 9 and Friday 9 'til 9 Buy Line 328-8811 ;