Hello.

How long does the female take to make is eggs.

At what month are they ready December,January or February.

Do male always have milt.
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My YP in Ohio start small egg sacks in late August. By late October the egg mass is 2-3cm about 1"-1.5". Your YP in Quebec should have small egg sacks sometime in September - October. Catch a few, clean them and look for eggs. Males are not able to release milt until sometime in late February or March.

Hello.

Thank you, always a lot of useful informations.
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Hello.

September 30, Sack 1.5"








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Very good information. Thank you for the ideas and work efforts.

Hello.

I do not know the eggs growth rate, but if the Saks are 1.5" at the end of September, is it possible that the formation of Saks and eggs begins at the end of July, only 3 months after spawning.

I will check the speed of growth at the end of October and November.

For the beginning of eggs formation, I will have to wait next year.
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I have seen small 2cm egg sacs in female YP toward end of August from Lake Erie. Amount of egg development prior to spawning will be based on location of geographical latitude that also determines spawn date. Sampling of female perch in each water body will determine when egg sacs first develop. End of July or early August is probably a close start date of egg development for the most northern yellow perch populations.

Hello.

Read in an article. ( Many factors influence fertility in fish, we can observe a phenomenon of compensation, so when a population decreases the females produce more eggs).

So the more fish there are in the pond, the less the females produce eggs.
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Also, the more fish there are, the less fry make it to maturity. But, As Lusk says : In an established pond, 99% of the eggs laid and hatched will never live to reach maturity. They get eaten.

Hello.

2 months later.
November 30.

Sack, 1 inch 1/8 wide, 2 inches 1/2 long.

The eggs have grown a lot, there are many,

The eggs sack is starting to take up a lot of space.







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Good pics azteca. Thanks for posting them.

Possible but YP are known to overpopulate and stunt even if they reduce reproductive output.

Hello.

Then Yellow perch produce one sack of egg, and Bluegill and Bass produce 2 sacks.
https://www.michigan-sportsman.com/threads/bass-with-eggs-in-october.663861/
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2 ovaries.. in those, it's how they should be. And.. egg production starts not very long after spawning. Might surprise you how early they develop eggs.

Hello.

April 6, about 1 week from laying.







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Will you enjoy the caviar, azteca?

I do but I cook it first. I learned that from my grandmother on my mothers side.

Hello.

Eggs at the bottom of the picture unfertilized


Fertilized eggs.





Un fertilized eggs.


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azteca,

Thank you for the excellent photo documentation of the easily observable differences ... if you know what to look for!

Now we do.

Hello.

May 18, and these females have already made the bag which will receive the eggs, I don't know, it is always the same bag.




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