striped bass age versus egg viability

[tattoobob]

Pete I am going to ask the Biologist at the Mass Marine fisheries, and I will post his answer as soon as he emails me back.

[Striperhound]

Here is a thought starter. If a 40 pounders eggs are less viable does that 40 lb fish have better genetics therefore fewer eggs reach adulthood but have a better chance at being the next cow????

[MakoMike]

I'm sure if you dig through the scientific papers from the ASMFC and the American Fisheries society you can find that data you're looking for. IIRC fecundity starts to drop off at around the 45 pound mark.

[beamie]

I asked a similar question a lond time ago and Bassbabe who is employed somehow in the biology field gave this response, no numbers but it is info.

Quote:
Originally Posted by beamie
Does anyone know what the best breading fish is? i.e. When people get bent out of shape when 50+ pounders are taken do those big old fish still produce or not. Are they like humans where after a certain age it just doesn't work anymore?


It all boils down to reproductive potential and fecundity. Fecundity is the number of eggs a female fish produces. The larger the fish, the more resources it can allocate toward egg production. Therefore, the largest fish lay the most eggs -- and they don't go thru the 'pause. But although a 50 lb-er may lay more eggs in one whack, it has lower reproductive potential, as it is not expected to live for a heck of alot longer. Reproductive potential is the potential number of offspring a fish can produce in its remaining lifetime. So...a younger, smaller fish has greater reproductive potential, assuming it will live for many more years, grow, and make more babies each year. So don't feel guilty taking the monster fish...think twice about keeping the 28 inchers, because they're the ones with many years of breeding and tons of striper babies in their future.

[baldwin]

Those huge cows may have a smaller percentage of viable eggs, but if they're producing a greater volume of eggs, that may, at least partially, make up for it. Secondly, if even a few of those eggs survive to produce a couple of more fish with those superior genetics, I believe it's worth it. Enough of those excuses to take the best fish out of the gene pool. If you have to kill the fish and show people that you can catch them, you're fishing for the wrong reasons. Give it up and buy some golf clubs.

[MakoMike]

Originally Posted by baldwin

Those huge cows may have a smaller percentage of viable eggs, but if they're producing a greater volume of eggs, that may, at least partially, make up for it. Secondly, if even a few of those eggs survive to produce a couple of more fish with those superior genetics, I believe it's worth it. Enough of those excuses to take the best fish out of the gene pool. If you have to kill the fish and show people that you can catch them, you're fishing for the wrong reasons. Give it up and buy some golf clubs.

Why on earth would you think that a older bigger fish has "superior genetics" to a smaller young fish? That's like saying your five year old kid won't grow up to be six feet tall because he's only 3 feet tall right now.

[Flaptail]

Originally Posted by MakoMike

Why on earth would you think that a older bigger fish has "superior genetics" to a smaller young fish? That's like saying your five year old kid won't grow up to be six feet tall because he's only 3 feet tall right now.

Mike, that was dead nutz right on!

[beachwalker]

Originally Posted by baldwin

Those huge cows may have a smaller percentage of viable eggs, but if they're producing a greater volume of eggs, that may, at least partially, make up for it. Secondly, if even a few of those eggs survive to produce a couple of more fish with those superior genetics, I believe it's worth it. Enough of those excuses to take the best fish out of the gene pool. If you have to kill the fish and show people that you can catch them, you're fishing for the wrong reasons. Give it up and buy some golf clubs.

but I like golf ....?