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Blueberry milkshakes
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this post was submitted on 08 Nov 2023
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Why are they draining it in this way? Poor things.
It’s catch and release so they let them go afterwards where they found them. Horseshoe crab blood is an essential biomedical tool that’s saved countless lives.
What are some example uses for the blood? I’m fascinated.
Thanks for the reply too.
It’s an anticoagulant and can detect the smallest traces of endotoxins in medicine. I’m sure I’m missing some details but there are some great medical journals that detail the process and help explain why it’s $60,000 a gallon.
How close is this stuff to HP’s Cyan?
With how much those things cost, I wouldn’t be surprised if some horseshoe crab blood was mixed in to really make the color pop.
I just snorted
Is this why the royals are rich? Because they have blue blood.
I, uh, I may have an economic recovery proposal.
It is not an anticoagulant, quite the opposite actually. The blood (limulus amoebocyte lysate) will coagulate at the slightest hint of gram-negative bacteria and their endotoxins.
It's most likely a defense mechanism against bacterial infections.
It's widely used in medicine to check for bacterial contamination of injectable pharmaceuticals.
Woah. Are horseshoe crabs like other crustaceans in that they eat pretty much anything including/mostly detritus?
If thats the case, than how would it be beneficial to have blood that coagulates so easily?
Wouldn't every meal lead to a crab version of a stroke?
Horseshoe crabs are not crusteceans, they are early chelicerates.
They have an open circulatory system, where the blood (heamolymph) freely spills out of the arteries into surrounding tissues, so a small clot probably wouldn't cause issues. Think of it like a cyst, sometimes if an infection can't be removed by the immune system, your body will just enclose it in a capsule, so it can't spread.
Discoveries like this always makes me wonder, who had the idea to try it and why
Where can someone find these horseshoe crabs?
And are they able to be bred in captivity?
Pls respond fast, I’m already driving to home depot to buy the largest above ground pool they have.
On horseshoes, sure why not, and buy two
The blood contains a coagulent which clots in the presence of bacterial toxins. It is extracted and used to ensure that medical equipent and stuff such as vaccines are sterile and safe.
The main use is to detect how much endotoxins (proteins that cause our immune system to react) are present in a sample. This is important because we often use bacteria/fungus/yeast to produce medicine and then remove the microorganism from that medicine. This checks for anything left behind in that process, far more sensitive than any other test or machine can do.
If it wasn't for horseshoe crab blood, creating medicine that is safe for injection would be a lot harder and potentially more dangerous.
Wonder why we can’t just make the coagulant ourselves. Or maybe we can but milking crabs is still cheaper.
My guess without checking would be regulatory. The FDA doesn't want to approve an alternative to an already working method unless it can be shown to truly be an alternative. That testing is lengthy and expensive.
Here's an interesting article
Here's a description of the bleeding process:
https://www.horseshoecrab.org/med/bestpractices.html
It's specifically non-fatal:
It may look uncomfortable to us humans, but keep in mind that horseshoe crabs are not human. What's normal for the spider is chaos for the fly. Granted, it would be kinda weird to be hoisted from your home by a giant ape and forced into a blood drive. It's done as gently as possible though.
Unfortunately the practice often results in death anyway. 30% die in the process.
It also has unforseen consequences in the food chain, so by all means we should look for alternatives.
Thankfully alternatives already exist .
Last I read synthetic LAL was nowhere near scaleable. Bleeding Crabs is very expensive.
Still, I was disappointed to find that a large percentage of released crabs die anyway. Can't find the number, but it's significant. 1/3rd?
Afair estimates put the portion of dead crabs between 10 and 30%. Some might also be unable to reproduce due to the bleeding.
Sadly a lot of the companies harvesting them will just kill and sell them for bait anyways.
Of those that are released, about a third die. Not to say about the decrease in overall fitness, which can lead to them falling prey more easily.
It's obviously a traumatic experience for the animal in the best case scenario and that is going to reflect on their ability to survive in the wild.
Thanks for the link and info.
Not a reply directly to you, but to contrast the dominant view in the thread - what would it matter if even 100% of the crabs died? Sustainability considerations aside - a crab died for my delicious salad, who cares if they die for a life saving vaccine? Who cares if it's painful and disorienting for the crab, it's a crab. As humans, why should we prioritize crab life and well-being over our own?
Because we aren’t special and every time we make a stupid decision like that it has disastrous ripple effects.
Ripple effects, sure, I'm with you there, sustainability considerations, which I haven't seen anyone mentioning ITT.
I completely disagree with you about the status of humanity. Is it really your view that the well-being of a crab has equivalent moral status to your own well-being?
Why because we happened to evolve to think? Given enough time something else would of if not us. Given we may end up causing our species to go extinct due to careless disregard for our environment and even human life in general. We really are not that special and it would serve us to treat the ecosystems, which enable life on this planet to thrive and evolve, with respect if we want to live long enough too see other stars or at least leave the planet in a decent state for the next species if we all die from pointless wars like humanity seems to love doing regardless of if we treat our environment better.
I don't like hurting animals. If one believes we really are a special species because of things like our innate curiosity, I think you'll understand the interesting quest to try to eat without hurting anyone/thing.
Why? Better, why not?
I still eat eggs & cheese. Perhaps a day will come where I don't need those either. I hope you'll be curious enough to try some alternatives too.
I've read good moral arguments for a veganism. I think it's the right thing to do when it comes to diet. For what it's worth, this isn't really a discussion about diet.
It isn't a decision between a lentil burger and a beef burger, this is an animal resource that can assist in saving human lives. There are other clotting factors used in medicine, and that's great, let's use and develop those. But suppose something more lethal and dangerous than COVID comes along, and vaccines need to be produced quickly and globally. I think it would be foolish to wince if we needed to take crab blood to roll out a program that would save human lives.
If the crabs die out we lose the blood, from both sides its better to be as sustainable as possible.
I don't know about spacecowboy, but I do. I still eat crabs, but I don't think I'm superior to them morally just because I'm more intelligent or something. We're just animals eating each other.
What I mean when I say moral is, I don't see why it's wrong if a bunch of invertebrates are subjugated, in pain, or die in order to provide something that improves the lives of humans. It's not sad, it's a good thing. "Oh but the crabs get stressed out, and 30% might die", yeah, who cares, they're crabs.
Sure, I'm a human, and I have a particular perspective on these things. But, we are special. Anyone who considers a trolley problem with a crab on one track, and a human on the other and honestly says, "hey it doesn't matter humans aren't special", that's, unappealing. In a purely academic, cosmic, arrangement of particles sense, OK, nothing is special. But in that condition, the suffering of animals isn't even a question worth considering.
The fact that so many accounts in this thread are going out of their way to give weight to the well-being of invertebrates, in a conversation about human well-being, is baffling.
Should we be using existing clotting factors in medical settings that don't rely on the blood of an endangered species that lives in an incredibly volatile habitat? Probably, but crab discomfort is at the very bottom of the list of reasons why.
People can think of other species as being morally as valuable as people and not be psychotic.
They can also chose the human in the trolley problem and still feel bad for the crab. If the trolley problem included people from my familly and strangers, I'd chose my family, but not because I think it's morally superior. I would feel bad for the other people.
The line where compassion stops can be drawn anywhere. Many people draw it where their nation or race ends. Many people draw it at the elusive pet/food distinction. Many people draw it where being mammal stops.
I don't think drawing the line is based on moral principles. It's practical. Sometimes you need to eat meat, sometimes you need to fight in a war. But when it comes to morality animal lives are animal lives, no matter whether it's a crab or a white male human. They're either all worthy of compassion or non of them is.
So that's my point of view. And thanks for your previous answer.
Because we HAVE to kill a crab to eat it, we shouldnt be killing or harming other animals unless we "need" to. If theres a way to harvest blood without killing the animal, that is the ethically cleanest option. I do think we should prioritize helping our own species over others, but that doesnt mean ignoring the suffering or harm of other species
being bled is not my concept of normal for and species
Highest chance of survival/low stress
Edit: many do die still. I don’t want to say it’s safe, just safer
That's how blueberry is made Freeze some of this add some structure, let it set, then put it on trees
Because we as a species have decided its okay to torture others for personal gain