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Fishy Singing [Sep. 28th, 2007|11:20 am]
randomposting
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If a fisherman catches a dew fish, which lives in the depts of the ocean, the drop in pressure as he raises the fish to the surface will turn it inside out.

Now I found that tidbit on a couple of trivia pages but I can't seem to find anything to verify if this is true or not. no pictures, etc. Anyone have any more info?

http://www.youtube.com/watch?v=n9vqurYJgLo&eurl=

"That's Joy" I think it's cool that she loves singing so much.. even if she's not the best out there. :)
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Comments:
[User Picture]From: zibacco
2007-09-28 04:38 pm (UTC)
Well when you go fishing for deep water stuff, like rock cod, they will spew their guts out of their mouth, and it is because of the pressure difference. As for turning completely inside out, who knows?
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[User Picture]From: randomposting
2007-09-28 04:40 pm (UTC)
Have you ever done this? I'm not a big fan of hunting or fishing, but I think regardless.. that would reeeeally gross me out!
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[User Picture]From: zibacco
2007-09-28 06:07 pm (UTC)
I actually have. We did a lot of fishing growing up and a little bit of hunting. We always ate what we took, though.

But re the fish, yes, it really does happen. The guts come out their mouths and their eyes pop out really big. Apparently you can throw them back and they still live, though. And yeah, its not exactly the most attractive site, but the fish itself is very tasty.
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[User Picture]From: randomposting
2007-09-28 06:11 pm (UTC)
eeeeeeww. lol. Poor things. *shakes head* I would so puke.
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[User Picture]From: electrosoundwav
2007-09-28 04:41 pm (UTC)
I have heard that about the dew fish, but it seems kinda fishy to me.
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[User Picture]From: randomposting
2007-09-28 04:43 pm (UTC)
Me too. *nod*
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[User Picture]From: randomposting
2007-09-28 06:07 pm (UTC)
Well yes, I can understand that feeling. lol
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[User Picture]From: randomposting
2007-09-28 07:08 pm (UTC)
*grin* I agree.
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[User Picture]From: chillygator
2007-09-28 06:32 pm (UTC)
If the fish is turned inside out how does the hook stay in? hmm...then again, I never use a hook while fishing. I just like to cast and don't want to have to touch (or eat!) any fish. Sick. (o:

You'll have to post a picture if you do find one.
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[User Picture]From: randomposting
2007-09-28 06:40 pm (UTC)
*nod* It's a good question about the hook. Maybe they meant with a net?

And I'm still looking. lol
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[User Picture]From: watergal
2007-09-28 09:41 pm (UTC)
I don't think I have anything to add specifically that other commenters haven't said, but yes, deep water fish hauled up rapidly have gas expansion problems just like scuba divers do...both gas in the vascular systems (decompression sickness or "the bends") and overexpansion injuries from the swim bladder.

I'm not specifically familiar with dew fish, but as someone else said, fish with particularly large swim bladders-- bass are the ones I'm most familiar with--brought up from 2+ ATM of pressure can have so much expansion of their swim bladder that it pushes internal organs out their mouth and gills. I'm not sure if that is what was meant by "inside out," but I could see it being phrased that way.

It's not true that it doesn't hurt the fish. Fish can die from the barotrauma or from "the bends" just like people can. The viscera are made to take a good bit of shifting with the swim bladder, so the bulging itself isn't usually fatal, but it takes a long time (days) for the swim bladder to deflate to where the fish can swim properly. During that time the fish is extremely vulnerable to preditors. The marine ecosystem is pretty unforgiving of sick and weakened critters.

Catch and release deep sea fishers who end up landing a fish with an inflated swim bladder are urged to decompress the bladder with a hollow needle--sort of the same deal as a inkpen barrel chest tube.

Similarly when collecting fish for aquariums from more than 1ATM or so deep, they have to be brought up slowly, then left to hang off the side of the boat the last few meters and raised very slowly--just like a surfacing scuba diver.

This 'll teach you to ask for input on underwater related items! *g*
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[User Picture]From: watergal
2007-09-28 09:52 pm (UTC)

links

My knowledge is all Atlantic and North American Pacific coast, so I don't know where to go for dew fish info, but here's stuff on the occurance in deep water fish in my territory.

http://seagrant.oregonstate.edu/sgpubs/onlinepubs/g05001.html
http://www.spc.int/coastfish/News/LRF/11/LRF11-StJohn.pdf
http://www.allatoonateamtournament.com/misc/bladder.html
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[User Picture]From: randomposting
2007-09-30 03:36 am (UTC)

Re: links

Awesome! *bookmarking for later persual*
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[User Picture]From: randomposting
2007-09-30 03:35 am (UTC)
WOW!!!

I know so much about this now!! You are SO awesome! Thanks for educating me on this love!!
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