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| 02388nam 2200337za 4500 |
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| 001 | 9.838419 |
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| 003 | CaOODSP |
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| 005 | 20221107151356 |
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| 007 | cr ||||||||||| |
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| 008 | 170616s1976 oncba #o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn-mb |
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| 086 | |aFs97-7/640E-PDF |
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| 245 | 10|aLake whitefish (Coregonus clupeaformis (mitchill)) in Southern Indian Lake, Manitoba |h[electronic resource] / |cby H.A. Ayles. |
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| 260 | |aWinnipeg : |bDepartment of the Environment, Fisheries and Marine Service, Research and Development Directorate = Ministère de l'Environnement, Service des Pêches et des Sciences de la mer, Direction de la Recherche et Développement, |c1976. |
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| 300 | |avi, 28 p. : |bmaps, ill. |
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| 490 | 1 |aTechnical report = Rapport technique ;|vno. 640 |
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| 500 | |a"This is the eighty-ninth Technical Report from the Research and Development Directorate, Freshwater Institute, Winnipeg, Manitoba." |
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| 500 | |aDigitized edition from print. |
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| 504 | |aIncludes bibliographic references. |
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| 520 | 3 |aThe spawning and population characteristics of lake whitefish, (Coregonus clupeaformis), from Southern Indian Lake, are discussed. Whitefish spawn in shallow areas of rock and boulders. Temperature appears to trigger the spawning act. Whitefish (males and femailes) mature at an average age of 8.8 years. Growth and condition are good for lake whitefish in most regions of this large and complex lake. Different year class strengths appear to exist. Mortality rates vary from 0.43-0.70. The flow of the Churchill River through this lake has a strong influence on the productivity of the lake and therefore on the available commercial yield of whitefish. Commercial fishing of whitefish yields, on the average, 400, 000 kilograms per year. |
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| 546 | |aElectronic monograph in PDF format. |
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| 692 | 07|2gccst|aLakes |
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| 692 | 07|2gccst|aFreshwater fish |
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| 700 | 1 |aAyles, H.A. |
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| 710 | 1 |aCanada.|bFisheries and Marine Service.|bResearch and Development Directorate. |
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| 710 | 2 |aFreshwater Institute (Canada) |
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| 710 | 1 |aCanada. |bFisheries and Marine Service. |
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| 830 | #0|aTechnical report (Canada. Fisheries and Marine Service. Research and Development Directorate)|vno. 640|w(CaOODSP)9.838135 |
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| 856 | 40|qPDF|s1.31 MB|uhttps://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs97-7-640-eng.pdf |
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