Why fish overturn n die when there is no injury?

I found this at Fishing kaki forum and i think its very useful.

QUOTE:

How to Deflate a Fish

You’ve hauled in the fish from deep down. His eyes are bulging and his stomach is sticking out of his mouth. How can you get him back in the water to swim away? You can’t unless you vent his swim bladder gases.

The swim bladder is an organ filled with gases, mostly oxygen and nitrogen. This organ is in the abdominal cavity along the backbone beneath the first dorsal fin. Except for sharks and rays most marine fishes have well-developed swim bladders. The swim bladder helps keep the fish buoyant at whatever depth they normally live.

When fish are at rest, the pressure of the gases in the swim bladder equals the pressure exerted by the surrounding water. The gases are compressed and the swim bladder occupies a relatively small space. If you bring a fish rapidly to the surface from down below 30’, the outside pressure lessens and the gases in the swim bladder expand in direct proportion.

Say you catch a fish at a depth of 33 feet. By the time you get him to the surface the gases in his swim bladder will occupy twice their original volume. These bladders can only stretch so far before they burst. When they do, the gases escape into the fishes abdomen, where they continue to expand. This puts pressure on the stomach, the intestines and other internal organs. To return the fish safely, you must vent those gases.And you must do it without further injury to the fish. Don’t try to force the stomach or other organs back into the body cavity. DO NOT vent the gases by puncturing the protruding stomach or going through the anus. The fish will probably swim away but won’t live.

Most fish are hardy and can survive this trauma, if properly deflated, he will survive, get bigger and reproduce. Here is how you do it:

* Use a deflating tool (an atheletic ball inflation needle ground to a sharp point or a carpet needle).
* Insert it through the thin part of the body wall on the underside of the belly below the pectoral fin.
* Squeeze the fish gently to force the gases out through the tube or needle.
* Do this quickly and very soon after capture
* Release the fish holding him in the water until he can swim away.

Excerpts were taken from an article written by the Mote Marine Laboratory Newsletter

CR at PRPP on 301008

New record for us. We hit a total of 25. Bite was constant for the first 2 hr but died off on the last hour. Not forgetting, some of the guys keep hitting the Japanese fish.

Changi Board walk?

I believe are the ones in red.

CR on 241008 at PRPP

No catch for the first hour. At about 8pm fish were released. I parked my float just infront of the net near the ang kuay spot, less than a min, the float sank and my line was pulled far far away from me and than the line slack and lost it.
Recast to the same spot, the float sank under the net and my line stuck at the net.
Try the 3rd time , same spot and in about 5 mins, it sank again, this time round, i got it.
In the end, 3 ACK landed and lost 4. Overall, it was quite fun as the bite after the release was good.

How to hook up the dough bait for mekong (by BKKGUY)

Warrior9001 once told me his friend use a very weird method to hook a bait, now i finally understand him when I saw the method in FNR forum.



Here as quote:



Here a step by step on how to hook up the dough bait for mekong. Look easy but in actual fact it is not, believe me !! ;) Those who have fished with me at this local mekong pond will understand what I mean.

Bread n Dough



1) Hook on a small piece of plain white bread.



2)Take a piece of dough bait and cover the top part of the white bread.




3)Cover the foam floater with the first layer of dough baits.



4)Now cover a second layer over it. This time round, use more dough baits




5)This is how it should look after finished



6) Next, dip both lump of dough baits into the 'secret solution'.



Tacklebox

Tackle Shops in singapore

Taking from here
www.handlinefishing.com

Drum reel at Farmway 3

Very interesting catch here

As quoted:
Common Setups :
Rod : Xtreme Angler rapier version 1, 6'0 2pcs 6-12 rod
Reel : Daiwa SS700Mainline : 10lbs fireline
Shockleader/ Bite-leader : 25lbs mono FG to mainline
Hook : 1/0 mustard & debarb of course

KRC at PRPP on 19/10/08

Quite a fun day although the catch is not much ( 8 pieces, there is one milkfish which we sashimi it). All of us got misses but in the end 2 big cho was landed ( 2.78kg & 2.5kg). A bit "ai wan" was that the 3rd prize fish weighted 2.86kg.

Offshore Cr

This is the boat we have been going for the recent offshore catch as promised to finn. Interested ?

PRPP 14 OCT Midnight

Sagai's catch was ok in the first 1hr, after that was dead quiet until last 15 mins, landed 2 more fish.


2 TN, 3 CZ, 1ACK, 1KBL

PRPP 10 10 08

Still quiet at prpp, 3 rods only 1 rod landed 2 fish this evening.


I landed on a rotten broken crab pincer..... rare one.. haha

Cr at FW 1 on 04/10/08

Prmp!

was itching for fishing. Went to tatoo the fishes in other's net were good. A wide varity and a approx 3kg groupa. Went to prpp to check, the pond was dead quiet w a handful dead fish floating ard. Gave up and check out Prmp, heard the releasing the fish soon, so we try 1 rod. Within 15min landed a red snapper on my light tackle rod. It was fun tackling thought the red was not big. Shall wait n c if more to come.... Brought to u live at PRMP Ti§h.