3. Andrzej Ciereszko, Igor Babiak, Konrad Dabrowski. 2004. Theriogenology, Volume 61, Issue 6, 1039-1050. [Online] (www.sciencedirect.com) (02.05.2012) [URL] http://www.sciencedirect.com/science/article/pii/S0093691X03002917 4. Pihu, E. 1979. Loomade elu, Kalad. Valgus, Tallinn. 5. Mikelsaar, N. 1984. Eesti NSV kalad. Valgus, Tallinn. 6. Peter J. Miller, Michael J. Loates. 1997. Euroopa kalad. Eesti Entsüklopeedia kirjastus, Tallinn 7. Roger A. Bergstedt, Rodney B. McDonald, Katherine M. Mullett, Gregory M. Wright, William D. Swink, Kenneth P. Burnham. 2003. Journal of Great Lakes Research, Volume 29, Supplement 1.Pages 226-239. [Online] (www.sciencedirect.com) (03.05.2012) [URL] http://www.sciencedirect.com/science/article/pii/S0380133003704912 8. John W. Heinrich, Katherine M. Mullett, Michael J. Hansen, Jean V. Adams, Gerald T. Klar, David A. Johnson, Gavin C. Christie, Robert J. Young. 2003. Journal of Great Lakes Research, Volume 29, Supplement 1.Pages 566-583. . [Online] (www
Koonce, Michael A. Rutter, William D. Swink. 2003. Journal of Great Lakes Research. Volume 29, Supplement 1, 2003, Pages 253-282. http://www.sciencedirect.com/science/article/pii/S0380133003704936 (viimati vaadatud 19.03.2012) [4] Weiming Li, Michael Twohey, Michael Jones, Michael Wagner. 2007. Journal of Great Lakes Research, Volume 33, Supplement 2. Pages 70-86 http://www.sciencedirect.com/science/article/pii/S0380133007701272 (viimati vaadatud 18.03.2012) [5] John W. Heinrich, Katherine M. Mullett, Michael J. Hansen, Jean V. Adams, Gerald T. Klar, David A. Johnson, Gavin C. Christie, Robert J. Young. 2003. Journal of Great Lakes Research, Volume 29, Supplement 1.Pages 566-583. http://www.sciencedirect.com/science/article/pii/S0380133003705176 (viimati vaadatud 21.03.2012) [6] Roger A. Bergstedt, Rodney B. McDonald, Katherine M. Mullett, Gregory M. Wright, William D. Swink, Kenneth P. Burnham. 2003. Journal of Great Lakes Research, Volume 29, Supplement 1.Pages 226-239. http://www
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