Jason Kennedy
Submitted by One Eyed Phil on Sat, 2011-02-12 16:22
I'm Curious
I'm watching Jason Kennedy's fishing program on aurora at the moment (not the best produced show in oz - stated he has colour AFTER the camera showed the fish on the surface next to the boat!!!)
my question is though, he stated after he brought the estuary cod on board, that he was going to pierce him and then release him. I'm assuming he was referring to the swim bladder that was very prominent
I am under the impression that you do not pierce the swim bladder - it's a death penalty for the fish.
Having never fished from a boat I cannot speak from experience, just what I've been told
Any comments folks?
Phil
fishy fingers
Posts: 1719
Date Joined: 28/04/07
Not neccesarily
a death sentence but you have to know what your doing and it involves piercing it through the side of the fish with a needle not for the amatuer.
what you see in the gob is the stomach that the swim bladder pushes out.
Faulkner Family
Posts: 18330
Date Joined: 11/03/08
this piercing he is talking
this piercing he is talking about is also known as venting. it has been proven affective but as fishy fingers said , it has to be done properly
RUSS and SANDY. A family that fishes together stays together
Fathom
Posts: 622
Date Joined: 18/04/08
It kills most species, only a
It kills most species, only a few can survive it according to a scientist I have worked with on a similar project.
Was amazed to watch some anglers on a TV fishing show I worked on (cameraman) just catch, stab anywhere close with a knife and throw them back one after the other for a good shot....pathetic.
Joodles
Posts: 362
Date Joined: 19/11/10
Painful!
Im no expert on the prick n release so I wont comment, but yeah I was watching that show also, I had to turn it off, it just gets painful!
beau
Posts: 4135
Date Joined: 24/01/10
STOP THE BUS!!
STOP THE BUS!!
Goodz
Posts: 2332
Date Joined: 20/07/09
haha... I love anything
haha... I love anything fishing I can watch on tv but honestly... whats with taking about yourself in the 3rd person!?!?!?
Also wondering about the venting of the air bladder after recantly catching a big dhu we couldnt' release because of it.
beau
Posts: 4135
Date Joined: 24/01/10
GONE LIKE LAST WEEKS PAY!
GONE LIKE LAST WEEKS PAY!
Joodles
Posts: 362
Date Joined: 19/11/10
HaHa
that was funny!!
Adam Gallash
Posts: 15665
Date Joined: 29/11/05
We successfully vent trout
We vent coral trout here quite often (for work) and they go on to survive in the tanks with no problem. It does take them some time to right themselves as we let the air vent without putting any pressure on the fish. I would say most fish with stomach out of mouth would be too far gone for venting. It should be used as a last resort as usually you wouldnt have a venting needle on board to do it properly. I guess if you feel the fish is going to die regardless, then its probably worth giving it a shot with a knife just under the lateral line on a 45 degree downward angle near the middle of the rib cage.
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Yewiefish85
Posts: 809
Date Joined: 02/01/11
hi Adam, i know a little off
hi Adam, i know a little off topic but have you guys had any sucess breeding the trout? or are you guys still conditioning up your brood stock?, if sucessful, do you have any photos of baby trout (or dollies for that matter)
Adam Gallash
Posts: 15665
Date Joined: 29/11/05
not as yet
Our trout brood stock are ready to go, just they won't do their business. Which we aren't sure if its related to captivity or we haven't got the right time/conditions. Having said that, I took some video around November of spawning behaviour - which didn't result in eggs unforutnately. (which coincides with other demersal spawnings on the reef) We have about 14 trout, 5 of which are extremely domesticated and been in tanks for around 3 years (2.5 in Canarvon - conditions may not have suited) so hopefully something will happen soon or we will have to look to canulate them via artifical means (which is not ideal).
We have for the time being given up on mahi (well, conditions aren't allowing us to get quality broodstock at the moment) but we did have a 'successful' run at it last summer where we produced a large quantity of fish which eventually died off due to ammonia related issues, not before getting to around 600g and close to market size. There are many issues along the way though that I won't go into, but effectively make mahi an extremely difficult prospect to culture.
Got a heap of baby mahi pics at home, let me know if you want to see some.
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alfred
Posts: 3097
Date Joined: 12/01/07
Trout brood stock - change
Trout brood stock - change the water to kick the breeding off. When they get too used to the water conditions, they will not breed and often a change in water conditions will trigger it.
fishy fingers
Posts: 1719
Date Joined: 28/04/07
I'm not sure
but at a guess I would say it's an open system with the water being constantly changed
Adam Gallash
Posts: 15665
Date Joined: 29/11/05
yep
It is constant flow, approx 3500 litres an hour. Every 2-3 months we dump the entire tank (approx 65 tonne), chlorinate, thiosulphate and refill and then change the dynamics of which fish are with which to possibly turn one of the other females into a male - we are trying all sorts of different arrangements.
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fishy fingers
Posts: 1719
Date Joined: 28/04/07
Is the return across the beach
down in the gulf? when we were there in november I had to drive across it wasnt to keen being a new 4x4
we were wondering what it was.
Adam Gallash
Posts: 15665
Date Joined: 29/11/05
Yeh
Yeh mate, thats it.
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Yewiefish85
Posts: 809
Date Joined: 02/01/11
interesting!, yeah mate would
interesting!, yeah mate would love to see some pics, having a background in aquaculture myself and being completely obsessed with everything fishy i am always keen to read and see pics from around the industry
barneyboy
Posts: 1392
Date Joined: 08/01/09
yep used to bleed out trout, black jews, cod, ect
you need to be extremely careful. If you do it wrong you can cause the fish to get fin rot and sea ulcers and die. You can get a video on this, or get someone who knows to show you!
FEEEISH ONNN!!!
alfred
Posts: 3097
Date Joined: 12/01/07
Back in Singapore and
Back in Singapore and Malaysia, the in ground ponds are no where as sterile as the holding/spawning tanks here, but to induce the breeding they literally pump out the water from the mud ponds and let the sea water fill in again and they have found that that kicks it off.
In all holding ponds, the water is always circulating. Some are actually open to the sea.
Man Overboard
Posts: 957
Date Joined: 16/01/10
Surely the depth is the
Surely the depth is the key,
if you bring any fish up from 40mtrs or so, and it has " blown up " ie: stomach protruding from mouth, then no amount of needles will save it.
Sure it will get back down to the bottom, but it will have some sort of barotrauma issues and certainly an open wound to deal with.
dodgy
Posts: 4588
Date Joined: 01/02/10
Open wound I wouldnt be too
Open wound I wouldnt be too worried about. Have seen some horrific injuries that have healed up fine.
Does anyone know where the love of god goes, when the waves turn the minutes to hours?
Ryan C
Posts: 1575
Date Joined: 08/07/10
blue groper
did anyone see that episode of fishin trip where he caught that monster blue groper over 1m long that came up with its eyes out of its head and nearly already dead, and he said" its over 1m long well have to put ole mate back in the water!" before he caught it he said he was fishing for a monster blue with 100lb braid.saltiga 8/0 hooks and 130lb leader with a big whole squid, funny they didn't show the release!