Really looking forward to this study, thank you Katie, Dr. Scott and the SFI for running it! When Katie says at the end the assumption is most fish survive, I thought DFO was using a conservative release mortality rate and that is what is used when determining a fishery like MSF where we may be encountering stocks of concern. Hopefully this tightens up the estimates used and leads to more recreational opportunities, even if there may be changes in allowed gear/methods.
Great video Rod! One thing I think all the time, is non rubber coated nets should be outlawed! They hurt the fish and there is no need to use them in this day and age when much safer tech is now available.
While non rubber coated nets are certainly more abrasive, all nets, including rubber coated, and thick rubber coated nets included, have significant effects on fin damage. So not only do nets impact scales, skin and mucous, but they have also been shown to consistently damage fins, which provides an avenue for infection to occur.
@@ShenpaiWasTaken What @Stoisy44 was suggesting (he’s one of the researchers in the video) is that for fish that are required to be released, the best approach is to use a gaff by sliding it down the line to dislodge the hook while the fish is in the water. This ensures that no fins are damaged, no scale loss, and fish have the best chance of survival. The fin damages and scale loss done by the landing net are especially hard on the smaller fish that are often under the legal size limit. There will be follow-up videos that show the findings from this study and recommended practices once we are ready.
@@FishingwithRod Better to just use pliers to grab the hook and shake the fish off while it's still in the water... A floppy fish could still catch a spike to the dome from the gaff hook.
Interesting! although I wonder how monitoring the chinook in a land based tank incase of post release death can be directly compared to being released back into the ocean, would there not be a difference between the two? 🤔
@@brianradant2885 very true! im sure it goes both ways however, the tank itself may be stressful in comparison to being released back into the ocean. theres just so many variables. but im not a scientist 🤷
@@coleomo perfection is going to be impossible and the fact that they are doing this study to specifically address the gap we have of looking at how many total fish survive or make it past a tracking monitor at a river means we get a lot closer. I'd take this data over the existing studies regardless of how it turns out for sports fishing.
You're exactly right. There are always going to be postive and negtive biases in survival depending on what type of survival experiment you are trying to complete. Longer term tagging and tracking studies (czcams.com/video/8nThmHxQkaE/video.html) will always have uncertainty related to the survival outcomes. WHY or HOW, did fish die? We develop a good understanding of longer term post-release survival, but lack the understanding of why each fish has died. When you confine fish within holding tanks, as has been done with the current study, we can develop a more precise understadning of what drives the short-term mortality that we fail to see in the tagging a tracking research. These holding studies help describe the mechanisms, or what causes the mortality. When you combine the results from each type of research the picture becomes clearer, and the overall uncertainties are reduced.
Really interesting video. I didn't know that injuries to their fins never heal and that even if it looks okay 5 minutes later they might show blood pooling in their eyes. Would be curious to know what the fat readings are for salmon throughout their lifecycle. Also wish they showed their recommendations for CnR at the moment. Looking forward to their research.
Hey there thanks for the comment! My name is Katie-- i'm the one in the video. The energy probe readings range from 0.5-1 for sub-adult Chinook and ~6.5-13 for adults depending on stock. For example, fish with a short migration will have a reading of ~6 and one with a tough, long migration would be 13 or so. Official recommendations will be coming out with time but we have a couple that we are currently preaching. 1) Move locations to get off the school if you're catching many small fish to avoid interaction. 2) Limit all physical handling (bringing it aboard and on the deck, air exposure, touching the fish, etc.) as much as possible. 3) Avoid netting the fish when possible if you plan on releasing it. 4) Reduce hook size (max 15 mm gap width or 3/0). 5) Avoid using treble hooks. Cheers, Katie
I would say teaching a proper C/R technique to the anglers would help a TON because on all the vids i watch from north america the C/R technique is pretty horrible overall and covers all species both in fresh and salt water. they have NO clue in general no mather the fish and using too light gear and line seems to be the trend meaning the fish will break stuff and have gear in their mouth or body and too high values of lactic acid so they die within 3 days even if they kick the second people let them go....
Idk what your referring too (probably bass fishing) but most if not all anglers in the PNW take extreme pride in proper c&r practices both fresh and saltwater
@@austintodeson1679not accurate. There’s a redneck contingent in the US northwest who takes pride in pulling native fish out of the water onto rocks and kicking them back in.
This is a great study, we can apply this knowledge, to the Fraser River , Sandheads, etc. for catch and release fishing !!
Really looking forward to this study, thank you Katie, Dr. Scott and the SFI for running it! When Katie says at the end the assumption is most fish survive, I thought DFO was using a conservative release mortality rate and that is what is used when determining a fishery like MSF where we may be encountering stocks of concern. Hopefully this tightens up the estimates used and leads to more recreational opportunities, even if there may be changes in allowed gear/methods.
Very interesting. Thank you for sharing this.
Thanks for watching!
Thoroughly enjoyed this video! Looking forward to the lessons learned!
Love these informational videos, great work Rod!
I'm interested to see the follow-up video and seeing how the fish survived or didn't.
Awesome informative & interesting video Rod 🎣👍👌
Big fan here rod awesome video
Great video Rod!
One thing I think all the time, is non rubber coated nets should be outlawed! They hurt the fish and there is no need to use them in this day and age when much safer tech is now available.
While non rubber coated nets are certainly more abrasive, all nets, including rubber coated, and thick rubber coated nets included, have significant effects on fin damage. So not only do nets impact scales, skin and mucous, but they have also been shown to consistently damage fins, which provides an avenue for infection to occur.
@@Stoisy44still if you're going to use the net it's the lesser of two evils. Just like using a barbless hook rather than a barbed hook.
@@ShenpaiWasTaken What @Stoisy44 was suggesting (he’s one of the researchers in the video) is that for fish that are required to be released, the best approach is to use a gaff by sliding it down the line to dislodge the hook while the fish is in the water. This ensures that no fins are damaged, no scale loss, and fish have the best chance of survival. The fin damages and scale loss done by the landing net are especially hard on the smaller fish that are often under the legal size limit. There will be follow-up videos that show the findings from this study and recommended practices once we are ready.
@@Stoisy44 thank you for what you do for the salmon!
@@FishingwithRod Better to just use pliers to grab the hook and shake the fish off while it's still in the water... A floppy fish could still catch a spike to the dome from the gaff hook.
Interesting! although I wonder how monitoring the chinook in a land based tank incase of post release death can be directly compared to being released back into the ocean, would there not be a difference between the two? 🤔
100%. I’m sure eye damage, for example, has a way larger impact in the wild. But it’s a way to get closer to that data
@@brianradant2885 very true! im sure it goes both ways however, the tank itself may be stressful in comparison to being released back into the ocean. theres just so many variables. but im not a scientist 🤷
@@coleomo perfection is going to be impossible and the fact that they are doing this study to specifically address the gap we have of looking at how many total fish survive or make it past a tracking monitor at a river means we get a lot closer. I'd take this data over the existing studies regardless of how it turns out for sports fishing.
You're exactly right. There are always going to be postive and negtive biases in survival depending on what type of survival experiment you are trying to complete. Longer term tagging and tracking studies (czcams.com/video/8nThmHxQkaE/video.html) will always have uncertainty related to the survival outcomes. WHY or HOW, did fish die? We develop a good understanding of longer term post-release survival, but lack the understanding of why each fish has died. When you confine fish within holding tanks, as has been done with the current study, we can develop a more precise understadning of what drives the short-term mortality that we fail to see in the tagging a tracking research. These holding studies help describe the mechanisms, or what causes the mortality. When you combine the results from each type of research the picture becomes clearer, and the overall uncertainties are reduced.
Great video!
Really interesting video. I didn't know that injuries to their fins never heal and that even if it looks okay 5 minutes later they might show blood pooling in their eyes.
Would be curious to know what the fat readings are for salmon throughout their lifecycle.
Also wish they showed their recommendations for CnR at the moment. Looking forward to their research.
Hey there thanks for the comment! My name is Katie-- i'm the one in the video. The energy probe readings range from 0.5-1 for sub-adult Chinook and ~6.5-13 for adults depending on stock. For example, fish with a short migration will have a reading of ~6 and one with a tough, long migration would be 13 or so.
Official recommendations will be coming out with time but we have a couple that we are currently preaching.
1) Move locations to get off the school if you're catching many small fish to avoid interaction.
2) Limit all physical handling (bringing it aboard and on the deck, air exposure, touching the fish, etc.) as much as possible.
3) Avoid netting the fish when possible if you plan on releasing it.
4) Reduce hook size (max 15 mm gap width or 3/0).
5) Avoid using treble hooks.
Cheers,
Katie
Here is the best way: Catch your limit and go home.
I would say teaching a proper C/R technique to the anglers would help a TON because on all the vids i watch from north america the C/R technique is pretty horrible overall and covers all species both in fresh and salt water. they have NO clue in general no mather the fish and using too light gear and line seems to be the trend meaning the fish will break stuff and have gear in their mouth or body and too high values of lactic acid so they die within 3 days even if they kick the second people let them go....
Idk what your referring too (probably bass fishing) but most if not all anglers in the PNW take extreme pride in proper c&r practices both fresh and saltwater
well i havent seen those videoes then because the ones i see people are basicly clueless, competition or not.
@@austintodeson1679
@@austintodeson1679not accurate. There’s a redneck contingent in the US northwest who takes pride in pulling native fish out of the water onto rocks and kicking them back in.