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NamfosNovember 19th, 2015, 10:19 am
Rockville, MD

Posts: 1
I'm a very sporadic visitor to this site, but I often send anglers new to entomology here. And IMO one of the best things here are the photos.

That being said, our club forum here in the DC area had this question posted:

Why don't fish eat water striders?

Secondarily, my experience with water striders on moving water, such as the Potomac, is that if water striders are present, fish will NOT be present. Or is this an old wives tale?

Namfos
MillcreekNovember 19th, 2015, 10:59 am
Healdsburg, CA

Posts: 356
Namfos,

The reason water striders are not eaten is because of a scent gland on their thorax which evidently gives off a smell which is unappreciated by fish in general.

I've seen trout swimming below water striders. Not too commonly, but it happens.

Mark

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