|
|
| Post Number: 131
|
alex vulev 
BBBB No2
Group: Members
Posts: 1207
Joined: Jun. 2007
|
 |
Posted on: Oct. 16 2012,09:57 |
|
   |
well said Bernd!
--------------
Wise indeed was George Selwyn Marryat when he said: "its not the fly; its the driver"
page 193,
GEM Skues,The Way Of A Trout With A Fly
|
 |
|
|
| Post Number: 132
|
Bernd
Group: Members
Posts: 2204
Joined: Mar. 2006
|
|
Posted on: Oct. 16 2012,11:30 |
|
 |
http://www.youtube.com/watch?v=F1NNcpbqWBw&feature=related
"Oh my god, we need some pliers here. In fact we gonna need to cut the line right there. Let's cut that."
Hi Silver,
I agree this fish may (hopefully) have survived. So you may tell us the usage of a barbed hook had no impact on the mortality here.
For me this doesn't change this video to be a perfect example of a very bad treatment of the fish before releasing it.
The barbed hook and the problems to remove it is just one part of what I would teach to do different here.
This is because I prefer to see the whole picture and not only the impact on mortality.
Greets
Bernd
--------------
Bernd Ziesche
www.first-cast.de
|
|
|
|
| Post Number: 133
|
Snake Pliskin
Group: Members
Posts: 638
Joined: Jun. 2008
|
|
Posted on: Oct. 16 2012,12:11 |
|
|
The handling of that fish was fucking retarded. Total dick heads. Videos like that piss me off.
|
|
|
|
| Post Number: 134
|
Paul Arden
Fly God 2010
Group: Super Administrators
Posts: 25670
Joined: Jul. 2003
|
|
Posted on: Oct. 16 2012,14:15 |
|
|
Absolutely appalling fish handling. Poor net mesh, fish out the water for Christ knows how long, handled with dry hands, fuck me, they're having a long self-congratulatory conversation while the fish is out the water. If the argument is that barbless hooks won't make significant differences to the survival of fish caught by anglers like this, then yes I agree.
--------------
It's an exploration; bring flyrods.
Flycasting Definitions
|
|
|
|
| Post Number: 135
|
Daniel
Group: FP Admin Team
Posts: 1345
Joined: Mar. 2004
|
|
Posted on: Oct. 16 2012,20:03 |
|
|
Absolutely shocking handling of a beautiful fish  
|
|
|
|
| Post Number: 136
|
Biology
Group: Members
Posts: 1070
Joined: Sep. 2007
|
|
Posted on: Oct. 16 2012,22:34 |
|
|
And I bet they are completely unaware that they're doing anything wrong...
--------------
"There are no passengers on spaceship Earth - We are all crew." - Marshall McLuhan
Small Fly Funk
|
|
|
|
| Post Number: 137
|
|
|
| Post Number: 138
|
Daniel
Group: FP Admin Team
Posts: 1345
Joined: Mar. 2004
|
|
Posted on: Oct. 17 2012,07:40 |
|
|
You're supposed to increase the number by one as each year passes Ryan. Not take one off 
|
|
|
|
| Post Number: 139
|
pyko
Group: SL Admin
Posts: 1455
Joined: Nov. 2004
|
|
Posted on: Oct. 18 2012,15:03 |
|
|
(Silver Creek @ Oct. 11 2012,17:44)
QUOTE My view is that where the fish is hooked is more important than whether the hook is barbless or not. Effect of Hook Type on Mortality, Trauma, and Capture Efficiency of Wild, Stream-Resident Trout Caught by Active Baitfishing: "Mortality at 72 h (2– 7%), anatomical hooking location (superficial or deep), and eye damage (5% of captures) in brook trout Salvelinus fontinalis did not differ between hook types. However, brook trout that were deeply hooked were more likely to die when barbed hooks were used. Mortality and eye damage in brown trout Salmo trutta were similarly low, but sample sizes were insufficient for comparison of hook types. Hook types did not differ significantly in terms of hooking efficiency, frequency of fish escape after hooking, or the mean unhooking time in which fish were held out of water."http://www.tandfonline.com/doi/abs/10.1577/M02-172.1
Hiya,
Sorry to keep this old pot boiling, but Silver, I found this which refers to the paper you quote from & seems to be slightly contradictory; certainly in terms of the mortality rate from different types of hook.
I'm no scientist, so statistically maybe the difference between 1.76% and 5.86% is inconsequential, but it would certainly give me food for thought...
Al
"A common management approach to directly control trout fishing mortality is a catch-and-release-only regulation. This is typically used in conjunction with a prohibition on the use of natural bait and often a requirement to use single barbless hooks or only fly-fishing gear. The intent is to lower, to the extent possible, the chance that exists for hooking or handling mortality each time an individual fish is hooked and released. The key element is a bait prohibition, because bait use can result in a 30-50% mortality rate per encounter. Thus, in an intensive fishery where individual fish can be hooked and released up to 10 times per year, allowing the use of bait is incompatible.
However, in our analysis, we found that anatomical position of hooking was critical and that adult steelhead were seldom hooked in a critical injury area even when bait was used. Thus, a bait restriction is not essential, in most cases, for a successful catch-and-release fishery on adult steelhead (a notable exception would be summer-run steelhead, which are stressed by higher water temperatures). Restrictions on the use of bait are essential, however, for managing any trout population of multiple age-classes.
Adding restrictions requiring single hooks, barbless hooks, or flies can provide only relatively small incremental improvements in trout survival. However, managers have realized that these can become important in situations where individual fish are hooked many times. The chance of mortality from a single hooking event was examined for various unweighted combinations of terminal gear from our compilation of research results."
The categories and single-event losses were as follows:
Barbless hooks with flies, 1.76%
All barbless hooks (with flies or lures), 2.16% Barbless hooks with lures, 3.00% All hooks with flies, 3.34% Barbed hooks with flies, 3.88%
All barbed hooks, 5.86% All lures, 6.56% Barbed hooks with lures, 6.86%
Sam Wright (1992): Guidelines for Selecting Regulations to Manage Open- Access Fisheries for Natural Populations of Anadromous and Resident Trout in Stream Habitats, North American Journal of Fisheries Management, 12:3, 517-527
--------------
You can observe a lot just by watching.
Yogi Berra
|
|
|
|
| Post Number: 140
|
Biology
Group: Members
Posts: 1070
Joined: Sep. 2007
|
|
Posted on: Oct. 18 2012,16:57 |
|
|
Interesting stuff pyko ... the significance of % stats depends on the numbers in part. The 5.1% difference between the two extremes above is negligible if we're talking a population measured in tens, extend that to thousands or even tens or hundreds of thousands and the quantum difference becomes dramatic. That aside, a qualitative conclusion to the above would be flies tied on barbless hooks are the least damaging... other data sets may draw a different conclusion.
Cheers, Andy
--------------
"There are no passengers on spaceship Earth - We are all crew." - Marshall McLuhan
Small Fly Funk
|
|
|
|
|
|
|
