The Crayfish of Nebraska

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Page 36 of 148

28 NEBRASKA CRAYFISH COLLECTIONS As of this writing, I have some 915 crayfish collections from 776 sites. Of these, 595 or 65% are my own collections. Of the remainder, 115 were collected during the 2003-2005 statewide stream fishery survey, 98 were collected by my summer aides during stream sampling, 42 were sent to me by other NGPC staff, 31 were found in online museum catalogs, 16 were found in published reports and 10 came from other sources. While there were a few crayfish collections between 1890 and 1980, over 94% were collected after 1993. The map below illustrates the collection locations (black dots) as well as sites that were sampled but no crayfish were found (open circles). I should note that if I found none at a site, I moved on and often failed to fill out a data sheet. Therefore many of the stream sections in the map with no dots or circles actually were places where no crayfish were found. Nebraska Crayfish collections: 1995-2016

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