Comments on: Freshwater Shrimp??? http://www.whatsthatbug.com/2009/05/08/freshwater-shrimp/ Are we experts yet? Thu, 19 Nov 2009 04:16:45 -0500 http://wordpress.org/?v=2.8.5 hourly 1 By: bugman http://www.whatsthatbug.com/2009/05/08/freshwater-shrimp/comment-page-1/#comment-3656 bugman Sun, 10 May 2009 13:35:06 +0000 http://www.whatsthatbug.com/?p=15809#comment-3656 Dear carterg, Thanks so much for your input on this. Dear carterg,
Thanks so much for your input on this.

]]> By: carterg73 http://www.whatsthatbug.com/2009/05/08/freshwater-shrimp/comment-page-1/#comment-3619 carterg73 Fri, 08 May 2009 14:34:07 +0000 http://www.whatsthatbug.com/?p=15809#comment-3619 Dear WTB, I've worked on benthos of the Great Lakes and inland lakes in Michigan for close to ten years now and have seen a few amphipods in that time. From these pictures its difficult to say much more than an amphipod. If there's a pond or lake near by its possible that these could, at the very least, be in the family gammaridae but the could also be Hyallela. The way to determine this is to see if there are accessory flagella (small segmented appendage) on the 4th segment of the first (top pair) of antennae. If there's no flagellum its Hyallela; if there is a flagellum its more likely to be Gammarus or at least in the family gammaridae. carterg, Ann Arbor, MI Dear WTB,
I’ve worked on benthos of the Great Lakes and inland lakes in Michigan for close to ten years now and have seen a few amphipods in that time. From these pictures its difficult to say much more than an amphipod. If there’s a pond or lake near by its possible that these could, at the very least, be in the family gammaridae but the could also be Hyallela. The way to determine this is to see if there are accessory flagella (small segmented appendage) on the 4th segment of the first (top pair) of antennae. If there’s no flagellum its Hyallela; if there is a flagellum its more likely to be Gammarus or at least in the family gammaridae.

carterg,
Ann Arbor, MI

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