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Which Mayfly Nymphs Hatch on the Bottom?


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8 replies to this topic

#1 Randyflycaster

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Posted 29 October 2014 - 11:26 AM

Does anyone know where I can easily find the answer to this question?

Thanks,

Randy

#2 flytire

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Posted 29 October 2014 - 01:50 PM

http://www.troutnut....optera-Mayflies


The fish care less than we do!


#3 zug buggin

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Posted 01 November 2014 - 11:45 AM

I using a very fuzzy memory but I think the Hendrickson sheads it shuck on the bottom then swims to the surface unlike most mayflies which swim to the surface then shead the nymph shuck

 

http://www.troutnut....phurs-PMDs-BWOs


"Fly Fishing Is Not A Team Sport"----Tom McGuane

The fisherman now is one who defies society, who rips lips, who drains the pool, who takes no prisoners, who is not to be confused with the sissy with the creel and bamboo rod. Granted, he releases what he catches, but in some cases, he strips the quarry of its perilous soul before tossing it back in the water. What was once a trout – cold, hard, spotted and beautiful – becomes “number seven.”
Tom McGuane

#4 SilverCreek

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Posted 01 November 2014 - 01:39 PM

Quill Gordon's (Epeorus pleuralis) do

 

http://www.troutnut....is-Quill-Gordon

 

http://www.delawarer...ies/gordon.html

 

But Ovoviviparous hatching mayflies are rarer.

 


Regards,

Silver

"Discovery consists of seeing what everybody has seen and thinking what nobody has thought"..........Szent-Gyorgy

http://tinyurl.com/lgkbu7v

#5 Randyflycaster

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Posted 02 November 2014 - 12:06 PM

What's interesting and frustrating about this subject is that there is different opinions on whether some flies hatch on the bottom. For example, some hatch charts list Hendrickson's has being bottom hatchers.
Two books I have say that they hatch near the surface.

Randy

#6 wschmitt3

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Posted 02 November 2014 - 12:32 PM

That video is absolutely BONKERS!!!!!

 

Did they emerge into winged adults or just hatch from the egg into nymphs?


-I like fly fishing. Call me Will.
 
"The lover of nature is he whose inward and outward senses are still truly adjusted to each other; who has retained the spirit of infancy even into the era of manhood."
 
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#7 SilverCreek

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Posted 05 November 2014 - 08:53 PM

Normally, the females lay their eggs after fertilization, and then they die. These female mayflies keep the fertilized internally and the fertilized eggs mature and hatch into nymphs just after being laid 10-14 days later.

 

The nymphs still have to grow and mature before hatching into duns a year later.

 

http://en.wikipedia....Cloeon_dipterum


Regards,

Silver

"Discovery consists of seeing what everybody has seen and thinking what nobody has thought"..........Szent-Gyorgy

http://tinyurl.com/lgkbu7v

#8 Taxon

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Posted 20 March 2016 - 04:35 AM

That video is absolutely BONKERS!!!!!

 

Did they emerge into winged adults or just hatch from the egg into nymphs?

 

Hi wschmitte-

 

Most female mayfly imagoes lay their eggs within 24 hours of having them fertilized by the male imago.  After those mayflies lay their eggs, it takes a several weeks for the eggs to mature, and for each nymph to break out of its respective egg.

 

However, several genera of mayflies retain the eggs within their abdomen for a week or more following fertilization, which allows their eggs to mature, so that the nymph is able to escape its egg immediately.following the egg being laid, which is what we see happening in the video.

 

Best regards,


Best regards,

Roger Rohrbeck
www.FlyfishingEntomology.com


#9 barrytheguide

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Posted 09 October 2016 - 12:15 AM

Lake Olives in the U.K. Greenwells Glory is a effective pattern.