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Why 10B snow crabs starved to death in the Bering Sea
- cde-v 3y agoHumans.
- PradeetPatel 3y agoHow does this comment help? Despite the rising water temperature, the world collectively is doing more for the climate than ever. Ranging from more ethical fishing practices to the reduction of fossil fuel usage, to more and more corporations going carbon neutral. This kind of defeatist attitude doesn't contribute to a better future.
- distortionfield 3y agoIt’s not a defeatist attitude to clearly point out that it’s humans when we still have a side able voting bloc who insists its _definitely not humans_.
- fouc 3y agoWho says the comment is defeatist or doesn't help? Acknowledging a source of a problem can be a helpful step towards finding a solution.
- pstuart 3y agoBoth sides need attention. We're still continuing to fuck things up and that should be called out. Likewise we should celebrate and support the progress we've made, and not surrender to defeatism.
- reactordev 3y agoYou say that as if you have evidence. You see pictures but for every “oh look at how we care about nature” photo Shell puts out, it drills 3 holes in the ocean leaking oil in perpetuity. We have never been more dependent on oil and gas than we are today. There is no “but we are making progress” to a species that is extinct.
- dillydogg 3y agoDoing more for the climate than ever? Do you mean more annual carbon emissions than ever? I guess it is more for the climate than before, just not in the direction I would like. https://www.iea.org/reports/co2-emissions-in-2022 https://www.iea.org/reports/co2-emissions-in-2022
- distortionfield 3y agoNot sure why you’re being downvoted you’re absolutely right. Anthropogenic climate change caused this massive die out. just one more rapid environmental change faster than evolution can adapt to that will likely result in extinction.
- refurb 3y agoConsidering how global warming has been happening for close to a century, but the crab population "boomed" in 2015 suggests it's not so simple.
- RandallBrown 3y agoHeat waves have existed long before human caused climate change. This article doesn't make any conjecture about the cause of the heat wave either.
- reactordev 3y agoHeat waves don’t exist in the ocean bro. Current temps are pretty bound to -1/1 degree. Any heat wave in the ocean is directly a result of man made climate change.
- peoplefromibiza 3y agoheat waves are pretty common in the oceans. from NOAA website The current Gulf of Mexico marine heat wave has been present for several months, beginning in February/March of 2023. NOAA’s experimental marine heat wave forecasts indicate a 70-100% chance that extreme ocean temperatures will persist in the southern Gulf of Mexico and Caribbean. [...] The ocean absorbs 90% of the excess heat associated with global warming. As a result, we know that marine heat waves all over the planet are becoming warmer over time. The absolute temperature of the current event is warmer because of climate change, but it would have likely still occurred without climate change
- reactordev 3y ago
- beau_g 3y agoImagine what these crabs would do to us if they were in charge though
- Obscurity4340 3y agoSouth Park [already] did it
- RandallBrown 3y ago> The research team also found that just prior to the heat wave, the crab population had risen dramatically, meaning that there had been a large increase in competition for food. I wonder what caused the rise in population? Without that it sounds like maybe the collapse wouldn't have been as dramatic.
- beart 3y agoI took an environmental science class in college years ago. My memory is fuzzy but I do recall these sorts of cycles typically indicate an unhealthy ecosystem, where an outside factor has shifted the balance. I think a commonly referenced example is the wolf population on Isle Royale in Michigan. Whereas a healthy and vibrant ecosystem tends to maintain a more consistent population across most species. I wish I could remember in more detail...
- ars 3y agoThat's not true. "Ruffed grouse populations rise and fall at intervals of about 10 years. Many other species of wildlife such as snowshoe hares also cycle at 10-year intervals." https://www.dnr.state.mn.us/birds/ruffedgrouse.html https://www.dnr.state.mn.us/birds/ruffedgrouse.html These animals have been cycling this way for as long as people have been checking, and presumably before that as well.
- nomel 3y agoLag in a proportional feedback system results in oscillation. This is why the derivative term is added to get rid of it, to catch things before they overshoot. I don't think most of nature has a concept that maps to the derivative term, especially since "greedy" is usually the best option for short term survival.
- beart 3y agoI'll take your word for it. Clearly not my area.
- pepa65 3y ago
- nostromo 3y agoIt's interesting that the population was at its highest-ever record in 2015. And then at its lowest in 2020. Boom-and-bust dynamics are common in nature and I imagine it played a large part in the population nadir. (This is touched on in the paper.)
- teaearlgraycold 3y agoHere’s a rabbit hole to go down on that theme - https://youtu.be/ovJcsL7vyrk https://youtu.be/ovJcsL7vyrk That’s my second favorite YouTube video. I love how it reveals some universal primitives are really complicated. The pattern in the video is as fundamental to the universe as circles are. Imagine how many other mind-boggling structures are ubiquitous but just outside our understanding.
- twiceaday 3y agoHopefully AI can endlessly search for such things eventually.
- teaearlgraycold 3y agoI’ve thought the same. We could automate the Socratic Method. Have computers search for all of the little voids in science right between a bunch of other well proven theories.
- dfc 3y agoI can not resist, what is your favorite video on YouTube?
- teaearlgraycold 3y agoIt’s a very different video. “Forgetting the Reusable Bags” - https://youtu.be/zULqF_sttJw https://youtu.be/zULqF_sttJw Just saw these guys live in SF.
- 3y ago
- adverbly 3y ago> The researchers found that if water temperatures increased by just 3°C, the caloric needs of the crabs doubled. Uhhhh... Does this apply to any other animals? Could people lose weight by turning up the thermostat?
- RandallBrown 3y agoI think it might apply to cold blooded animals. Our caloric needs actually go up when you turn down the thermostat because we need to keep ourselves warm. Shivering burns a lot of calories.
- willcipriano 3y ago> you burn 2,000 calories on a typical day at a comfortable temperature, the chillier environment would spur your body to burn an additional 80–120 calories https://www.insider.com/does-being-cold-burn-calories-2017-8 https://www.insider.com/does-being-cold-burn-calories-2017-8 Freeze your ass off all day and a single Reese's Peanut Butter Cup will be your reward.
- chrisfosterelli 3y agoAs usual, just eating less is a lot better strategy than trying to burn more.
- genocidicbunny 3y agoTurning the temperature down to ~60F from ~72F is not freezing. Turning it down from ~72F down to 0F would be freezing, and I bet that would earn you way more than a candy. Maybe some frostbite too though. I've seen the amount of food a Chukchi man would go through in a winter day, and even despite doing a not excessive amount of work, he would still be eating easily 5000 calories per day. During the summer, it was closer to 3000 or so.
- Reubend 3y agoCan you share a little more detail about the Chukchi diet? What does 5000 calories look like there in the winter?
- personjerry 3y agotl;dr water was too warm
- HankB99 3y ago> ... they are red, like lobsters. Disappointing statement from a "science" magazine. Lobsters are dark green until cooked.
- givinguflac 3y agoI think there is something wrong with your lobster?
- nerdponx 3y agoAlmost every live lobster I've seen at least has some kind of mottled redness on it. But snow crabs also aren't red until cooked. Alive/raw they're more of a reddish brown. The author probably Googled some pictures of crabs and lobsters and didn't even realize they might look different while alive.
- DrDroop 3y agoWhy do they need more food when it gets warmer, I would expect the opposite, do they need to run airco for some reason?
- faitswulff 3y agoThey’re cold blooded so their “clock speed” is roughly the same as the ambient temperature.
- DrDroop 3y agoFascinating, I've never thought about cold blooded animals this way. From reading wikipedia there seem to be different ways in which an animal can be cold blooded.
- iancmceachern 3y agoThis might be us soon, temp rises, our energy needs increase, not enough to go around