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(Science.org)   Scientists discover that attaching green LEDs to fishing nets reduces bycatch by 63% in the latest addition to the pile of cheap effective solutions that we won't do   (science.org) divider line
    More: Interesting, Light-emitting diode, Squid, Sea turtle, Fish, Giant squid, Baja California, Reptile, LEd  
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612 clicks; posted to STEM » on 25 Jan 2022 at 7:42 AM (16 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



14 Comments     (+0 »)
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2022-01-25 8:18:56 AM  
Now, maybe I'm looking at this the wrong way, but I suddenly feel it'd be a great idea to have a solar-powered green LED strobe dangling under your life raft.   Or to have a weighted one dangling off the bottom of a life jacket.

If sharks don't like them, you probably wouldn't mind having one with you if you're in the water.
 
2022-01-25 8:25:03 AM  
The major drawback, Senko says, is that it costs up to $140 to equip a net with lights, which is more than some fishers can afford.

Start a Go-Fund Me campaign for it. I'm not wealthy. I don't consider myself an animal rights activist--I support humane treatment of animals, but I still eat meat, etc. (I don't want to hear about. Yes, I see the hypocrisy.)  I would be willing to buy $140 worth of LED lighting for a net if this research is accurate. I bet I'm not the only one. I also bet someone could figure out how to make them cheaper.

Anyway, I would think the time saved by commercial fishers not having to untangle a Humboldt squid from their nets would pay for these lights pretty quickly.
 
2022-01-25 8:31:49 AM  

RobotSpider: is that it costs up to $140 to equip a net with lights, which is more than some fishers can afford.


If you can't afford $140 in equipment, you can't afford these nets in the first place.  It's time to go home and sell your boat.
 
2022-01-25 8:54:41 AM  

Unsung_Hero: If you can't afford $140 in equipment, you can't afford these nets in the first place.  It's time to go home and sell your boat.


Ha, I was giving them the benefit of the doubt, but you're absolutely right. If you can't afford $140 for lights, how are you putting diesel in your boat?
 
2022-01-25 9:02:01 AM  

RobotSpider: Unsung_Hero: If you can't afford $140 in equipment, you can't afford these nets in the first place.  It's time to go home and sell your boat.

Ha, I was giving them the benefit of the doubt, but you're absolutely right. If you can't afford $140 for lights, how are you putting diesel in your boat?


Maybe they have more than one net to put lights on? I don't know how many nets a small commercial fisher would have going at once, but $140 X 10 or 20 is a big chunk of change.

The lights are still a good idea, obviously. But if I learned anything from "The Downeaster Alexa" it's that fisherpeople have it rough these days.
 
2022-01-25 9:02:20 AM  
Lol

Fark user imageView Full Size
 
2022-01-25 9:35:22 AM  
Observation Log: LED Net Lighting Experiment

Day 1:  Rather than swimming into our strings of green lights, the Loggerhead Turtle swam toward the mall in a panic, having completely forgotten about Christmas.  The anxiety may be detrimental to the turtle's health.  Tomorrow we may attach one of those Advent calendars that dispenses candy, with a couple of weeks unopened so that they still go shop, but not in a frenzied panic.

Day 2: Apparently jellyfish are ravers.  We had to hand remove a huge pod of jellyfish from the LED nets.  Many of the jellyfish seemed unresponsive but that may have just been the ketamine they took before throwing themselves into the net.  We may want to muffle the outboard motor, which was putting out the kind of hypnotic BPM that drive these hopped-up goo bags into a mass frenzy or consider piping in some Perry Como.

Day 3:  I know COVID has led us all to make compromises in our lives but I'm beginning to really question my move from Unionized Broadway Stage Light designer to Freelance Deep-Sea Net Light Designer.  In retrospect, I never should have put Finding Nemo: The Musical on my resume.
 
2022-01-25 12:07:25 PM  

Marcos P: Lol

[Fark user image 425x425]


Kinda changes the meaning of "Old Chum", doesn't it?
 
2022-01-25 12:12:26 PM  
Cool stuff. Unfortunately, I suspect stuff like this is going to drive natural selection for ability to see green light. Which does not mean it would be an immediate problem, but down the road the approach could need adjusting.
 
2022-01-25 1:28:25 PM  
Hurray, even more ocean trash.
 
2022-01-25 1:38:35 PM  
Maybe $140 extra is enough to keep nets from being cut loose to drift. Or enough to make salvaging them profitable.
 
2022-01-25 6:07:40 PM  

RobotSpider: The major drawback, Senko says, is that it costs up to $140 to equip a net with lights, which is more than some fishers can afford.

Start a Go-Fund Me campaign for it. I'm not wealthy. I don't consider myself an animal rights activist--I support humane treatment of animals, but I still eat meat, etc. (I don't want to hear about. Yes, I see the hypocrisy.)  I would be willing to buy $140 worth of LED lighting for a net if this research is accurate. I bet I'm not the only one. I also bet someone could figure out how to make them cheaper.

Anyway, I would think the time saved by commercial fishers not having to untangle a Humboldt squid from their nets would pay for these lights pretty quickly.


Let governments pay for this, honestly.
 
2022-01-25 8:31:27 PM  
Fark user imageView Full Size


What about the fishing nets themselves?
 
2022-01-25 11:18:28 PM  
Bi-catch is still profit. It's not like they throw bi-catch away. It's just not the intended catch but it still sells at the fish market and if it isn't something that human want to eat then the fertilizer company will buy it dried and powdered.
 
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