Inducing S. bandensis hatch | The Octopus News Magazine Online
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Inducing S. bandensis hatch

morgandy

Hatchling
Registered
Joined
Mar 7, 2009
Messages
2
#1
Hi all,

couple of questions; we aquired 13 eggs on Weds night...by the time we got home, 2 had hatched, which we assume may be a stresss reaction, but not sure. The two have been fine, but we need to know if the hatching takes time of days or weeks for all the eggs.

And, is it possible to induce hatching (like with shark eggs), by doing a small slit? We do not want to do this on more than 1 egg, we do see them in the cases, but paid a fortune for these, so wondering if that is an option of last resort if they these don't seem to start hatching. If so, does anyone know exactly the procedure? I have searched high and low on the net with nothing found.

Also, we found http://aquaculturestore.com/ for crabs when they're old enough, are there any others you can recommend?


Any info would be greatly appreciated.

Amy
 

Thales

Colossal Squid
Staff member
Moderator
Joined
Jan 22, 2004
Messages
2,998
#2
I wouldn't induce hatching. Premature hatching usually results in dead cuttles. If the cuttles in the eggs have a yolk sac under the front of their face they aren't ready to hatch. If there is no yolk it could still take a week or two for them to hatch.

Hatch rates have been variable, but stress, like shipping, sometimes seems to induce early hatching which results in either the cuttles being just fine, or not. No known reason yet. Even if the eggs were all laid at the same time, hatch rates are variable.

I would relax and let them hatch on their own.
 

morgandy

Hatchling
Registered
Joined
Mar 7, 2009
Messages
2
#3
Thanks so much for the advice...I didn't like the idea but one of my business partners wanted to check on it.

thx again!
 

corpusse

Vampyroteuthis
Registered
Joined
May 30, 2009
Messages
458
#5
lance;134352 said:
What is the mortality rate of baby bandensis after hatch?

thanks,

lance
bump. I've had quite a few die on me but none for the first 3 weeks.

Now I'm left with less then half of what I started with but the ones who are alive and getting big fast.
 

Thales

Colossal Squid
Staff member
Moderator
Joined
Jan 22, 2004
Messages
2,998
#6
lance;134352 said:
What is the mortality rate of baby bandensis after hatch?

thanks,

lance
Thats a tuff one. There are no studies, and there are reports of different mortalities from different people. At the same time, the question really is what causes the mortality. Often, people who report large post hatching mortality seem to not be feeding suitable food, enough food, or feeding often enough.
 

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