Tagging Report - Dhufish recaptures
Managed to recapture another two of my tagged fish yesterday. Both had shown signs of barotrauma on initial capture and whilst this was minimised with the regular decompression stop I do on all my released fish, it was still noticeable. However two more recaptures to add to the others over the years and I am convinced, as you all should be by now, that careful slow retirieves and a deco stop on all released fish, matched with a release weight assisted return to the depths should lead to a healthy fishery in years to come.
For the record both recaptures had bearly moved from their home turf, but at their size I would be surprised if they would travel very far.
Tag 77659 initial capture 30/9/12 43cm recaptured 7/1/13 at 45.5cm
Tag 77657 initial capture 30/9/12 37cm recaptured 7/1/13 at 37.5cm
A varied growth rate as you would perhaps expect in a population. By the way my gut has grown a similar amount in that 3 month period (hahaha)
Here are a few pics for those interested
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
Ben Derecki
Posts: 1926
Date Joined: 10/10/07
Interesting post Andy, cheers
Interesting post Andy, cheers for that.
Never thought about a deco stop but it makes a lot of sense. I do a slow retrieve but I can get a bit excited sometimes, a deco stop would provide that extra bit of security / safety for the fish.
I'll be making some changes.
Andy Mac
Posts: 4778
Date Joined: 03/02/06
Deco stop
Ben, I usually go slow on a small fish then stop once I get a reasonable ID of species under the water and wait for a minute then retrieve again to a couple of meters under the surface just watch for the bubbles being released each time it will release a few and stop then retrieve a little until the bubbles start again stop and then retrieve again, I think it just lessens the swollen gut a little and avoids too much pressure on the organs.
There are a few vids on here I posted a few years back showing the deco and bubbles pretty well. Mindarie Mayhem 14 or 15 I think. Can't remember exactly but they are in the archives somewhere.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
Bodie
Posts: 3758
Date Joined: 05/11/07
good work! Would be
good work!
Would be interested to know if others use the release weight to assist in releasing dhu's even if they are in good enough condition to swim back on their own?
On Sunday we caught 3 or 4 small ones, and all bar 1 went back down on their own, 1 went on the release weight. All bought up nice and slow.
till
Posts: 9358
Date Joined: 21/02/08
With the bends, its not
With the bends, its not swelling as much as microbubbles that do a lot of damage. There is no issue with that if you use a weight.
Great to see the recaps Andy.
Rig
Posts: 2925
Date Joined: 27/12/06
Could agree more andy
I caught heaps over the Xmas break lots of small and size ones with the deco stop rarely did the release weight need to be used. And of course bring up small fish slow. Baldies on the other hand seem to struggle alot more with barotrauma. I had one that was just sized on the weekend and it was so close I would have preferred to release it. My mate brought it up slow as he thought it was an undersize dhu but even with a release weight it was too far gone so we kept it. I was a bit worried it might shrink once necked so I didn't cut its throat and it stayed the same size.
southcity104
Posts: 1659
Date Joined: 27/01/09
Your approach to catch care is great Andy
And im sure the community of fishermen will follow in your steps to looking after fish. Great work
"Its a life style job"
BOOMER
Posts: 179
Date Joined: 24/01/11
Hat`s off to you Andy too
Hat`s off to you Andy too many people get over excited pulling in what turns out to be small fish, we could all learn something from this post.
Cheers Boomer
Big hook,
Big bait,
BIG FISH !!!!!
meglodon
Posts: 5981
Date Joined: 17/06/10
+ 1
great to see the effort you put in to keep the fish healthy for release it would be a good lesson to all rec fishers to read what results can be obtained with a little bit of self control on the capture of the fish and then effort taken with it's release.
well done a great read
kelsea
Posts: 134
Date Joined: 14/02/12
Proof
The proof is in the pudding and you Andy have shown me the pudding. I was always sceptical of the effects that baratrauma had eveb when a release weight was used. I believed that the fish would have been knackered and either died down the bottom in severe pain or got nailed by something else because it was FUBARed. Wrong I was and how great it is to see. Many congratulations and I hope your post is read by all.
Ocean bound is where I'll be found
kmo
Posts: 127
Date Joined: 17/01/12
why not?
Good work on the recaptures and all of the effort with catch care.
A few people are saying they let the fish swim back down if the fish is healthy enough - can I ask why the release weight isn't used anyway?
Andy Mac
Posts: 4778
Date Joined: 03/02/06
Simple release v Release weight assisted
Don't get me wrong, I do release a few fish straight over the side, but thats only where they are clearly unaffected visually by barotrauma and are quite lively boatside. Most go back with tags some don't but any fish that doesn't make it we go back for, net and use the release weight to be sure. Most Pinkies can go straightover the side unless they have their stomach in their mouth, then its release weight time no questions.
The advantages of the release weight are that the fish is recompressed quickly and you are giving it a free ride so to speak so it is still full of energy to escape a waiting predator, instead of being knackered from the long swim back down.
Another tip for releasing fish with a release weight is to have a dedicated set up (line with release weight ready). I use a big trolling reel with a lever drag and rachet, which helps stop overruns as you drop the fish overboard. Trust me plenty of fish have jumped off and had to be netted and re-released because of a reel overrun.
Always best if you can have two people doing the release one holding the fish, the other the rod, but that isn't always possible or practical.
Anyway it takesmaybe 3 minutes to tag, release and bait up for the next drop so if you catch a few fish that need releasing its not an aweful lot of time out of your fishing day to invest for the future.
I know Paul G and Jody have tagged and recaptured heaps as well so its definitely worth taking care of these fish for the future.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
Rig
Posts: 2925
Date Joined: 27/12/06
release weight
kmo if they dont have baratrauma better off letting them swim off under their own steam, the ones I am talking about kick off straight back down.
I have had on a few occasions particularly with coral trout they float on their back kicking so when the release weight is use they shake of it halfway to the bottom then float back up which is pretty frustrating. I am 100% convinced that the method andy has stated is the best option which is dont let them get baratrauma to start with.
Andy Mac
Posts: 4778
Date Joined: 03/02/06
The self vent/ deco stop vid
It was Mindarie Mayhem 16 vid .... here that had the deco vision to show what I mean by self venting the fish.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
Paul G
Posts: 5215
Date Joined: 12/12/07
We have tagged 280 dhuies
We have tagged 280 dhuies since starting ,Two Rocks, Jurein Bay ,Abrolhos,oceanreef.From 15m _80m all good releases even in 80m swiming off by themselves.As said if done correct they will survive .We have had 40 recaptures and im sure there is some numbers not being repoted .As you said none have moved far from there place first tagged.we have had a couple that have grown over 100mm in a bit over a year.
Active Gyp-Rok solutions ,Residential and commercial ceilings and walls
allrounder
Posts: 1853
Date Joined: 10/11/08
So are you convinced yet Paul?
Whats the furtherest you have had one travel? Hope to get out a bit more this year and see if i can recapture a couple more of the ones Ive tagged. I will have to dig up the info on the few from this round of tagging and stick them on the site now i have a little bit more time.
Just wish we still had the info from the first round when we proved that releasing them at depth worked. For some stupid reason it was not taken into account with fisheries because the people doing the tagging where to good at catch care or some crap. Isnt the whole idea of fisheries to educate the public. The whole thing has turned around since back then. The vast majority of boating anglers back then laughed when Gary Lilley and Wally handed out release weights at the ramps for free after paying for them out of their own pockets. Now we have forums like this and it gets the pubic recognition it needed all those years ago. Fisheries are now advertising in their brochures for taggers. Does any one know if the program is the one that we are in now or are fisheries starting one of their own? Either way its good to see progress even if its taken years.Congrats on your recaptures Andy.
So tell me have you got your info from years on the water or hours on the internet?
Andy Mac
Posts: 4778
Date Joined: 03/02/06
Growth potential
Thats just it Paul, if people stopped to think how much these fish can grow in a reasonably short space of time (I had one recapture grow 6 cm in just 12 months ) they pack on a fair bit of beef in that time, so taking care of all of them may mean more size fish down the track for your esky. I know science says they are slow growing but that is still a healthy return for time spent giving the best chance possible.
The other point being if these fish we have been recapturing are surviving with a bloody big plastic tag shoved in their side, surely the ones that non-taggers release have an even better chance of survival.
280+ tags mate that is awesome!!! I need to get on the water more.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
troy fuller
Posts: 411
Date Joined: 30/08/10
We have caught a lot of
We have caught a lot of dhuys and never once caught a tagged one, where abouts mainly do you tag? What I found worked on the weekend if bait fishing and a fish looks like it won't go back I quickly took off my sinker and looped a release weight on the paternoster rig and that worked a trick we have used the release weight a lot of times and have never seem a fish re surface after
this has to be the best way on releasing fish that just float, how do you get into tagging? I wouldn't mind putting some research into our catches, might have to con my old man(fisho-Ron) to look it up
allrounder
Posts: 1853
Date Joined: 10/11/08
Another trick Troy is if they come up and look a bit
worse for wear then dont touch them just throw them into freespool and drop them straight down about 5 or 10 meters and leave them for a bit while you get everything ready. If you arent tagging them then bring them up slow leave them in the water bang the release weight in them unhook them and drop them down without dropping them on deck. Most damage to fish is done when the fish is out of the water on a hot deck while waiting to be released.
So tell me have you got your info from years on the water or hours on the internet?
Andy Mac
Posts: 4778
Date Joined: 03/02/06
GDay Troy
There are about a dozen of us who tag under the ANSA Westag program. Jody is the organiser here in WA. Not sure if they want anymore involved, perhaps you or Ron shoot her a pm and she may be able to find out for you.
There are lots and lots of spots out there and Dhuies rarely move much so I guess unless you are fishing a spot one of the dozen or so tagging guys fish you aren't going to get a recapture.
Part of me is pleased that I'm the only one recapturing my tagged fish, which selfishly I figure it means its ground not many others fish.
I did recapture one of Pete D's fish once but he tagged it on my boat using his tag kit so it still was off one of my spots.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
West Coast
Posts: 332
Date Joined: 10/12/07
Recaptures??
If the tagging is showing the fish are not moving too far, what is happening to the other 85% of fish that you have tagged? (on Paul g's numbers)
allrounder
Posts: 1853
Date Joined: 10/11/08
Due to family and health issues iI have had little time
To spend on the water. That and the fact that I only tag by catch and once i have a fish or two in the esky I dont generally fish on,I have only tagged 4 Dhus in this round of program( Lost count in the last lot i did) Out of the 4 i tagged and with very little time on the water I have recapured 1 of them it had moved just under a nm and grown from 530 to 580.I have no doubt at all that near on all of the fish I release will go on with little to no side effects(under size bauldies excluded) The first round of tagging we did near on 20 years ago we had a fish (blackass) near the south end turn marker off hillarys that was recaptered nearly everytime we fish that spot.Brody had a tagged Dhu in this round that was caught a few times over.I had one dhu that we caught(not during the tag programs) a few times that had a deformed anal fin.He was caught countless times in about 20m of water off 2 rocks . Not sure if he moved on or got taken by another angler. He was undersize when first caught but was size and then some last time we caught him but couldnt bring myself to put him in the esky. It is plain and simple,slow retreive,handled or more to the point not handled if not required and they have a great chance at survival. There are several tagged fish that on release comments are in very poor condition when released at major depth still came back as surviving the first capture and gone on to be recaptured several months later. There are always going to be doubters amougst people not involved with tagging programs but the results IMO speak for themselves.
So tell me have you got your info from years on the water or hours on the internet?
West Coast
Posts: 332
Date Joined: 10/12/07
Depth??
What are your stats on recapture rates in deeper waters, say 40m+. You talk of recapturing a few fish as if it proves dhuies are fine to be released. I see nothing in the stats to suggest that dhuies handle the deeper stuff very well. You recaptured a fish several times in 20m. That probably proves it is not moving too far, and probably indicates that dhuies handle being released from 20m, which is excellent. Paul G caught 'dopey' several times. I would be interested in knowing the depth. Paul has also released fish, and then seen them whilst diving so I assume that is also relatively shallow. He has also recaptured gut hooked fish so they appear reasonably resilient which is great.
You guys are doing great work, and with a 2 boat limit, I assume more fish are being released than ever before so the more we research and learn the better, and the more we promote the release weight and its proper use the better. I am just mindful of giving fishers a false sense of security when releasing fish (40m+), as I think the stas prove the jury is still well and truly out.
Happy for any of you tagging guys to supply more info. And will be very happy to be proved wrong.
Hope your health improves.
Andy Mac
Posts: 4778
Date Joined: 03/02/06
All my tagging is done in 40+ meters
When we say they don't move much you will find that they will move from lump to lump within a small radius of where they were initially caught.
I don't know about anyone else but I have clusters of lumps maybe 40 individual structures per cluster within 1nm radius. You may catch the fish on one of the structures and recapture on another but they rarely move between clusters if that makes sense. Think of it as houses in a suburb....they rarely move suburbs is what I am getting at.
I don't fish deep ie in the 70's and 80's but I am pretty sure Paul does and has had recaptures at that depth.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
allrounder
Posts: 1853
Date Joined: 10/11/08
Had one caught again at the back of rotto
That had been tagged in deep water that in the tag comments it stated blown eyes and last seen floating,low chance of survival. Guess he proved us wrong hey
So tell me have you got your info from years on the water or hours on the internet?
Paul G
Posts: 5215
Date Joined: 12/12/07
90% of my tags are 34-42 m
90% of my tags are 34-42 m 8-15 mile west off 2 Rocks..Dopey lives in 38m on a small coral patch. I would say 70% of released fish do not need a release weight , They swim stright out of our hands. The fish we see diving are in the 34-42m.As this is were we dive most times.I have tagged some in 28m and recaught them but not seen them when diving there. The only place i have tagged fish in water 20m or less is the Abrolhos and i think it would only be 10 if that. I have also released fish in 80m without release wights.but do not offen fish that deep.And when do have not had recaptures, as i have only tagged maybe 5 out that deep. Dopey has also been vented with a fine needle twice as have around 100 of my tagged fish.We Have had floaters pulled out of the water a vented only to swim stright from our hands and be recaptured months latter.I do not recommend venting unless you know were to put the needle .Jesse has it down to a fine art ,done in seconds .We will have our new go pros soon I will do up a vid on tagging and releasing fish, with and without release weight .Venting maybe not as it may lead to people experimenting on fish which would not be good.
Active Gyp-Rok solutions ,Residential and commercial ceilings and walls
West Coast
Posts: 332
Date Joined: 10/12/07
Thanks Paul.
Appreciate the feedback.
NOHA
Posts: 914
Date Joined: 24/06/07
depth
My last lot of tagging was done in 60 to 80 meters. All fish were released in good condition as they were brought up slow, kept at shallow depth while the tagging kit was prepared, minimum time out of the water and release weight return to the bottom. Hopefully I get some recaptures from them as the only recaptures I have had back was snapper from 80 meters
Twin turbo..V8 diesel..Ohh what a feeling!!
No Orange Hats Allowed
Jody
Posts: 1578
Date Joined: 19/04/07
More time
Paul has God only knows how many spots, and we have tagged on heaps of them over the past couple of years.
We've only been abke to get back to some of them and a just a couple on a regular basis.
Paul hopes to remedy this, dontcha Paul eh? eh? eh? Especially where my 20kg went back
One particular fish has seen the sunlight at least 4 times. We call him Dopey
There have also been recaptues of our fish by others which are not included in Pauls data.
I must admit to being horrified hearing about people recapturing fish, not reporting them and tossing the tags. Pretty poor form IMHO
TWiZTED
West Coast
Posts: 332
Date Joined: 10/12/07
Be Interested...
I would be interested to know how Pauls spots fish going forward. It is a great effort to tag 280 dhuies, but I think getting those sort of numbers again will be hard, despite the fish going back and evidence suggesting that they do not move too far.
Paul G
Posts: 5215
Date Joined: 12/12/07
The dhuies do move in a few
The dhuies do move in a few km radios of were they were tagged .we have dived on spots where ten or more have had tags put in ,and there is no fish we can see with tags.you can fish that spot a month latter and catch tagged fish .they do move and return to lumps and coral areas.WE tagged 36 dhuies from one school over a couple off weeks.these were schooling fish and moved away from this area those tags are out there somewhere.if I have caught 40 recaptures I would put money on that 30-40 others have been caught and not reported.I have had one fish caught on double hooks one through the gut and one in the gills bleeding .not much chance of survival.wrong caught 6month latter in good condition .no signs of Being caught .Some would not make it for sure but they have a better chance of survival that baldies that are released.
Active Gyp-Rok solutions ,Residential and commercial ceilings and walls
Andy Mac
Posts: 4778
Date Joined: 03/02/06
I second Jody's comments
"If the tagging is showing the fish are not moving too far, what is happening to the other 85% of fish that you have tagged? (on Paul g's numbers)"
I view it like this:- How can you prove that you have caught every fish on the spots you fish? You can't simple as that, unless you dive every lump you fish and do a manual count before and after every drift.
By all accunts a 15% recapture rate is very impressive when you stop and think about how many spots we all fish. I know Paul is like me, we might do three or four drifts on a spot in a day maximum then move to another spot and not fish that same spot for months, maybe years. The reason Paul catches lots of good fish is that he spreads the load and fishes spots that not many people fish. I try to do the same, so if I'm the only one fishing a particular little lump maybe a total of 10 drifts a year with an averege of 2.5 anglers on board its not an aweful lot of effort delivering that 15%.
Similarly if you think 15% is a small percentage then it also stands to reason how on earth can a fish possibly reach 20+kgs and be taken from a spot that is fished more than once a year. How could it possibly evade the hooks for all those years to grow that big. Answer is they just do. Also how many fish have you caught undersize and thrown back without a tag only to recapture again still undersize and throw back again. Without a tag in there you would never know... maybe you have been catching the same fish 10 times over if you only fish a few spots. Well I believe that just like that other 85% tagged and not recaptured they somehow evade the hooks on those brief moments when a baited hook or jig runs over their home turf.
Sure some may die, which may account for some of that 85% but the proof is pretty clear that good fish retrieval technique, good fish handling technique and good release technique will improve the chances of survival.
Focus on the glass being half full not half empty as you are never going to be able to guarantee a wild fishes survival after release. I can guarantee you however that a fish with a tag in its back and enjoying a ride on my release weight will have an infinitely better chance of survival than a fish chucked overboard after a rapid ascent and flapping on the surface with its eyes being picked at by mutton birds.
The message is simple - take care with your undersize or overlimit released fish and they will have a good chance to grow and possibly eventually grace your table accompanied by the usual side order of chips.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
unhurry
Posts: 236
Date Joined: 23/10/12
Kudos to you blokes
.. for raising / rekindling awareness of good practice regarding release of fish.
It is amazing how much one can learn from a forum like this - I for one do appreciate the tips shared on the retirieval methods and release of fish not destined for the freezer.
Now only one problem remains .. catching them in the first place!
uncle
Posts: 9580
Date Joined: 10/02/07
great to see this tagging taking place
there must be lots of pinkies being tagged as well?
all aggressive fish love bigjohnsjigs
Dhuvinile
Posts: 228
Date Joined: 13/05/12
top work guys with tagging
top work guys with tagging fish its really good to see. i have been releasing all unwated or undersize fish on my release weight but struggled last trip out as i released a couple dhuies around the 60cm. the reason i had a problem was because my release weight was too small. have now upgraded to the 80 oz! should sort that problem.
i would like to get into the tagging side of things myself as when im out i tend to get a fair amount of small undersize dhuies, pinkies and breaksea.
Dylan
Wes F
Posts: 1068
Date Joined: 07/01/12
Good news alround
Great to hear there's alot of fisho's out doing the "right thing". Also to the tag and release research crews. Must be very satisfying to catch and recatch some quality fish.
Old fishermen never die they just smell that way.
Andy Mac
Posts: 4778
Date Joined: 03/02/06
Facebook page now up for Westag
You can find it here and like it to get updates.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club
pharlap
Posts: 69
Date Joined: 02/01/12
Hey Andy Mac, can you tell me
Hey Andy Mac, can you tell me where you got your measuring mat from....Do you have to be a member of of ANSA ?
Cheers.
Andy Mac
Posts: 4778
Date Joined: 03/02/06
I think so
Jody organised mine for me as part of the westag program.
Cheers
Andy Mac (Fishwrecked Reeltime Editor & Forum Moderator)
Youngest member of the Fishwrecked Old Farts Club