Aspects of the biology of Pontoporeia hoyi Smith in Lake Winnipeg and a comparison of hexagenia limbata (Serville) and P. hoyi production
During the open water season of 1969, three Birge-Ekman or Ponar grab samples were taken six times at up to fifty-five stations in Lake Winnipeg. Eighteen thousand one hundred and nine specimens of Pontoporeia hoyi Smith and one thousand and forty of Hexagenia limbata (Servilla) were identified fro...
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2012
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| Online Access: | http://hdl.handle.net/1993/6624 |