premature birth HELP!

[jr monster fish]

About 4 days ago I was fishing & cought a pregnent spurdog(I found this out when I gutted it).I think they had about 6 months to a year before birth. There are 8 pups & there yolk sack is almost as big as there body(there about 6" & in a 55 gal) the water is areated heavily but not filtered(im renewing the water with fresh seawater as much as possible) What I want to know is what I have to do to keep them alive.:shark:
Thanks!

[jr monster fish]

This morning I found the water all cloudy & there was a lot of bubbles on top. I took a closer look & they were all dead:cry:. It looked like the yolk sacs popped. Anyone know how I could have prevented this? Anyone?

[mininmarble]

dont gut sharks,thats an easy way to prevent it

[Crumbs]

I would say the best way to prevent this situation from happening again should you be fishing and catch a shark is to release it... alive. Especially if you catch a mature female. Not sure what fish you have kept alive with out filtration. Maybe a siamese fighting fish.. for a while. WOW

[Zoodiver]

If they were closer to full term, it might have happend. But not at that small of a size.

[jr monster fish]

I should have realized it was pregnant stupid me. What I ment about preventing this was keeping them alive(as far as not keeping any mature female sharks we kinda needed food:drool:).I basically had a flow through system.Why do you think the yolk sacs popped?

[ceeej31]

if they were that young the yolk sacs were probably very fragile, they might have bumped into each other or the sides of the tank
dont flame the poor guy, he made a stupid mistake and is clearly very sorry for it

[jr monster fish]

if they were that young the yolk sacs were probably very fragile, they might have bumped into each other or the sides of the tank
dont flame the poor guy, he made a stupid mistake and is clearly very sorry for it
thanks that answered my question & ya I wish we hadnt kept her/them

[mininmarble]

ok im sorry

[jr monster fish]

ok im sorry
ya accepted

[Bottomfeeder]

I'm not gonna rip u up for it...clearly u regret it...plus i'm new here so i can't rlly do that. lol;):grinno: But yes, the best thing is to release those Sharks, especially females. The Piked Dogfish AKA Spurdog, Squalus Acanthius is the most common Shark but most existing specimens are male, making it hard to reproduce. Also inside a mother Shark...at least Sand Tigers... they are half-covered by water, so in a full submerge the TINY change in pressure can make the yolk, maybe, pop.

[Moontanman]

If you are catching sharks for food I don't see how you can avoid gutting them but if you want to keep the babies for an aquarium realistically you would have to keep the female alive in a large aquarium until she gave birth. If you just want to avoid killing the babies then not killing the mother is about the only real way. How big are the adults? I used to catch the occasional shark and steak it up, two or three a year at most, a hundred pound shark goes a long way. To be true it's been a long time since I caught a shark or even fished for them on purpose. I like to eat shark, some of them anyway, many are really not very good to eat. Killing sharks isn't exactly a popular past time for the people on this list as you have found out. It's sad really, commendable that many people who fish are not killing sharks but sad that the real culprit is commercial fishing. They kill millions, our efforts to not kill them will in the long run only make difference to us not the sharks. Unless you really need them for food I would recommend not killing them and going for less pressured prey. Just my take, only you really know how necessary it is to eat them. Once I did have a guy who ran a Chinese restaurant fix me some shark fin soup from a shark I had caught, I didn't like it, don't know why it's so important to take the fins of these animals the flesh is much better. I would like to ask that you not kill sharks unless it really is nesesarry, it's been a long time since I was able to shark fish and knowing what I know now I don't think I would be willing to kill them anymore.

[Moontanman]

I'm not gonna rip u up for it...clearly u regret it...plus i'm new here so i can't rlly do that. lol;):grinno: But yes, the best thing is to release those Sharks, especially females. The Piked Dogfish AKA Spurdog, Squalus Acanthius is the most common Shark but most existing specimens are male, making it hard to reproduce. Also inside a mother Shark...at least Sand Tigers... they are half-covered by water, so in a full submerge the TINY change in pressure can make the yolk, maybe, pop.

There is also the change in specific gravity or salinity from inside the mother to sea water. This would have to have a bad effect on the yolk sac.

[jr monster fish]

How big are the adults?
3+ft (average for spurdog)

[ghostbear29]

also someone might chime in here...but i think the young pups are isolated from the saltwater in kind of a micro enviornment and are not ####haline (i cant remember the word) but it means not able to excrete the salt from the water yet.

stenohaline
urohaline
.... i dunno...so long from marine bio in college! damn.:irked:

[ghostbear29]

Thus being in full seawater....they take on lots of water in their systems.
what do you guys think?