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Raising Eels In Aquarium

post #1 of 61
Thread Starter 
Anyone Have Any Info On Trying To Mate Or Raise Eels In Aquarium?
post #2 of 61
Not sure how that would work - all American Eels spawn in the Sargasso Sea. My guess is they wouldn't spawn in a tank...they are genetically programmed to travel to the Sargasso Sea before spawning. I'd be interested to hear from some biologists as to how they suspect that instinct might affect trying to get them to spawn in a fish tank -- I'm gonna go out on a limb and say they won't



TimS
post #3 of 61
walp. kinda curious too. i can show you bazillions of little baby eels spawned in ocean county streams nowhars near sargasso. i kept half a dozen in a fishtank for a year, no signs of babies that was the extent of my research
post #4 of 61
Quote:
Originally Posted by Otter View Post
walp. kinda curious too. i can show you bazillions of little baby eels spawned in ocean county streams nowhars near sargasso. i kept half a dozen in a fishtank for a year, no signs of babies that was the extent of my research



They were spawned in the Sargasso...scientific fact



They are called "elvers" - illegal to possess under 6" long



TimS
post #5 of 61
"i can show you bazillions of little baby eels spawned in ocean county streams nowhars near sargasso."

I believe those eels are not spawned in Ocean County. After the eels are born in the sargasso they are called glass eels because they are tiny and clear. The schools of baby eels then start traveling back to the rivers. My guess is you caught some on their way to find a home. The Japanese love to eat baby glass eels. Look that one up!

I tried keeping some eels alive in a fish tank that i didn't use from a trip and they all eventually died. Probably too warm and not enough O2....

John
post #6 of 61
doods, they are tiny baby eels. 2-4 inch long. they are spawned well upstream of the bay, cause they all get flushed downstream. they arent able to hold their own against the current, but some manage to hide in breaks. i have disproven science once again
post #7 of 61
As far as I know, eels have never been successfully spawned in captivity. More significant, I guess, than the area where they spawn is the great depth at which they spawn. I know that there was some very limited success usinghigh pressure chambers, but that was perhaps 20 years back. Don't know if there's been any progress since then.

A lot of big bucks have been spent on spawning research, particularly by the Japanese. Eel - barbecued/smoked - is a delicacy in Japan, a lot of demand and high prices, and it's an important aquaculture species - most depending on growing out wild caught elvers. Hence the extensive elver fishery that existed up to a decade or so ago. Back when I was involved in growing eels they were going for a couple of hundred bucks a kilo - and that was approaching 30 years ago.

Predictably, they're easy to keep alive in an aquarium. That follows from them being so difficult to kill. I don't know about keeping them happy, getting them to grow.

I just did a Google search on "Anguilla rostrata culture" and there is very little info available on the web. Ditto on "Anguilla (genus of most edible eels) culture," so I assume there haven't been any culture/feeding breakthroughs.

TheSpaniard is right. They don't spawn in freshwater.
post #8 of 61
so they dont spawn anywhere else, ever, end of discussion or we just dont have any proof otherwise? cause it sounds like we dont know much from Nils' post. these guys arent clear they have really eely colors and look exactly like regular bigger eels, only smaller
post #9 of 61
I don't know the answer either way, but if they don't spawn in fresh water how come I find them in my local lake? This little lake is cut off from the salt by a dam. I've seen 'em all sizes, as small as a couple inches, to big (not huge though)....
post #10 of 61
Quote:
Originally Posted by Otter View Post
these guys arent clear they have really eely colors and look exactly like regular bigger eels, only smaller


which means they're elvers, not glass eels, having already migrated up from the sargasso

those guys are on their way upriver to mature, not downriver
post #11 of 61
Quote:
Originally Posted by Otter View Post
walp. kinda curious too. i can show you bazillions of little baby eels spawned in ocean county streams nowhars near sargasso. i kept half a dozen in a fishtank for a year, no signs of babies that was the extent of my research


american eels all do indeed spawn in the sargasso sea, then the elvers swim back to freshwater streams for 5 or 6 years to mature

then back to the sargasso sea to repeat the cycle

"anadromous" describes the salmon lifecycle

"catadromous" is what eels do


the bazillions of baby eels you describe came from the sargasso

it would probably be not too difficult to catch a bunch of those and raise them up

but it might be easier still to trap when they are a usable size
post #12 of 61
Quote:
Originally Posted by Dave's Gone Wild View Post
I don't know the answer either way, but if they don't spawn in fresh water how come I find them in my local lake? This little lake is cut off from the salt by a dam. I've seen 'em all sizes, as small as a couple inches, to big (not huge though)....


I've caught them upstream of a 10 foot high dam in a brook you could step across without jumping that freezes solid every year - they aren't spending the winter up there and they sure as heck aren't spawning up there - somehow they're finding a way over or around the dam.
post #13 of 61
theres a dam in my spot too, which is why i originally thought they spawned there but i disproved myownself after witnessing half a bazillion climb up the concrete like it was their job some of them actually took to the sand and were/are pretty mobile not unlike small snakes. i dont buy it though. how can we say for sure they all spawn in only 1 spot theres no way this may tiny eels are getting upcurrent in my spot. who wants to go
post #14 of 61
Someone needs to start sticking tags into those glass eels.
post #15 of 61
All my eels were eaten by a 200 pound turtle.
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