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Freshwater Invertebrate Underwater Pictures, Page 4

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In this picture: Mayfly Genus Ephemerella (Hendricksons, Sulphurs, PMDs). From the Namekagon River in Wisconsin.
Date TakenApr 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
In this picture: Mayfly Genus Epeorus (Little Maryatts) and Mayfly Family Baetidae (Blue-Winged Olives). From Mongaup Creek in New York.
Date TakenApr 19, 2006
Date AddedApr 22, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
There's a very well-camouflaged Baetisca laurentina mayfly nymph resting on the twig in the bottom left corner of this picture. Can you spot him?  In this picture: Mayfly Species Baetisca laurentina (Armored Mayfly). From the Namekagon River in Wisconsin.
There's a very well-camouflaged Baetisca laurentina mayfly nymph resting on the twig in the bottom left corner of this picture. Can you spot him?

In this picture: Mayfly Species Baetisca laurentina (Armored Mayfly).
Date TakenApr 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
In this picture: Mayfly Genus Epeorus (Little Maryatts) and Mayfly Family Baetidae (Blue-Winged Olives). From Mongaup Creek in New York.
Date TakenApr 19, 2006
Date AddedApr 22, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
In this picture: Saddle-case Maker Genus Glossosoma (Little Brown Short-horned Sedges). From the East Branch of Trout Brook in New York.
Date TakenSep 20, 2006
Date AddedOct 4, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
This isn't really an underwater picture, but a picture taken into my aquarium of midge larvae which lived in the silt I used for substrate.  Each larva has a little tower of detritus built up along the bottom, while the bare larva waves around from the top.  In this picture: True Fly Family Chironomidae (Midges). From Mystery Creek # 62 in New York.
This isn't really an underwater picture, but a picture taken into my aquarium of midge larvae which lived in the silt I used for substrate. Each larva has a little tower of detritus (Detritus: Small, loose pieces of decaying organic matter underwater.) built up along the bottom, while the bare larva waves around from the top.

In this picture: True Fly Family Chironomidae (Midges).
Date AddedApr 24, 2007
AuthorTroutnut
Here's the surface of the river viewed from below during a Tricorythodes spinner fall.  Several dead spinners are visible.  In this picture: Mayfly Genus Tricorythodes (Tricos). From the Namekagon River in Wisconsin.
Here's the surface of the river viewed from below during a Tricorythodes spinner fall. Several dead spinners are visible.

In this picture: Mayfly Genus Tricorythodes (Tricos).
Date TakenJul 18, 2004
Date AddedJan 25, 2006
AuthorTroutnut
In this picture: Arthropod Order Decapoda (Crayfish). From the Namekagon River in Wisconsin.
Date TakenMar 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Underwater Photo Page:1...345...14
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