7 ms·

Starfish are dissolving up and down the West Coast

75 points by austinz 12y ago

gd1 12y ago
Clicked link. Hit Ctrl-F. Typed "clima". Saw this: "I totally think climate change is involved," Lahner says. "I just don’t have evidence yet." Closed tab.
- jmnicolas 12y ago
  So what ? He didn't say man made climate change, just climate change. You don't have to be a genius to see the climate is changing. Now for the root cause, I don't know, but human pollution is certainly not helping.
  - mavhc 12y ago
    It's pretty simple really, co2 causes heating, co2 is increasing, increase in co2 is from fossil fuels.
    - Ntrails 12y ago
      Except CO2 from fossil fuels aren't even the largest contribution to "greenhouse gasses" that can be attributed to humans. Climate change is inevitable. It's happened before many times in the history of the earth, and will happen again. The behaviour of man and it's resulting emissions are largely agreed to have been impactful on the rate of change. However, I've seen statisticians and scientists poking rational holes in research (and pilloried for daring to do so by the green lobby). So I default to my standard position, which is that both sides are a bit wrong and the truth is somewhere in the middle. I'll stay here for a while, it's comfortable.
      - mdellabitta 12y ago
        There's a name for that move: https://yourlogicalfallacyis.com/middle-ground https://yourlogicalfallacyis.com/middle-ground
      - jdhendrickson 12y ago
        I've linked a short well made video below which addresses your arguments. TLDW Just because man's emissions are relatively small in comparison to the over all natural emissions does not mean they don't affect things. I implore you, (as you seem a reasonable fellow who values science) to give it a watch and see if you still feel the same way. I'm willing to watch or read any counter argument you care to link if you will do me the same courtesy. https://www.youtube.com/watch?v=OWXoRSIxyIU https://www.youtube.com/watch?v=OWXoRSIxyIU
        happyscrappy 12y ago
        Can we please not have arguments via video? Surely if the arguments are good there is a write up somewhere.
        lotsofmangos 12y ago
        a - why not? b - click the "show more" button. The text underneath the video is littered with references.
        kaybe 12y ago
        Here is a very good presentation of CO2 measurement values: http://www.esrl.noaa.gov/gmd/ccgg/trends/ http://www.esrl.noaa.gov/gmd/ccgg/trends/ I'm still looking for a non-movie version that shows the whole curve we have (not just the direct measurements). edit: forgot the link Some more good writeups: https://www.skepticalscience.com/argument.php https://www.skepticalscience.com/argument.php http://climatechange.procon.org/ http://climatechange.procon.org/ If anyone has questions - I study this stuff.
        Ntrails 12y ago
        Youtube is blocked at work, but my understanding was that the mass farming of cattle and the methane they produce was as impactful as the CO2 attributed to fossil fuels in terms of increasing greenhouse gasses. Some googling suggests I am wrong on that though as they claim agriculture is responsible for just 18% of the greenhouse gas (of course one gets wildly differing values depending where you look). My comment wasn't meant to imply that fossil fuels/CO2 isn't relevant, but it's not the whole story. I was clearly wrong as to the extent of agricultural impact :) As for the rest of it, I don't deny climate change. I don't pretend that humans have no impact the rate of change. I get uncomfortable with the way it's a "cause", by the way a statistician who questions methodology is attacked not answered etc etc. It makes me doubt the numbers, not the underlying principles (which are experimentally demonstrable)
      - mavhc 12y ago
        Seems to be the largest to me, most increased radiative forcing is due to co2, and most co2 is from the energy sector, which is mostly fossil fuels. Which matches up with the change the isotope ratios.
  - gd1 12y ago
    So what? That's not science, that's religion. That is 'god of the gaps' stuff. I suppose we can add it to the list (http://www.numberwatch.co.uk/warmlist.htm http://www.numberwatch.co.uk/warmlist.htm). Maybe the story was interesting, maybe it was important, whatever. I'm not reading it on principle if they're going to cross themselves and pray to their green god mid way through. There are a number of people like myself who would actually care about ecology/environmental issues if they weren't crowded out by absolute wank like that.
    - terhechte 12y ago
      How is it Religion to have a theory that you're trying to prove? You seem to lack a basic understanding of the scientific method. Her theory is: "climate change is involved". And she is searching for evidence, that is, she is trying to prove it. She doesn't even claim that climate change is involved, it is clearly marked as her opinion. Just like Einstein had the theory that time had to be relative, and then set out to proof it. Your reaction seems to be anger-fueled climate change hate that stops you from thinking in a rational, open minded way. Edit: Gender Error
      - waterlesscloud 12y ago
        Dr. Lesanna Lahner appears to be a "she". :-) (corrected typo)
        icebraining 12y ago
        *Lesanna
      - gd1 12y ago
        She doesn't posit a plausible mechanism for her theory, does she? It's just the fallback position, "it must be climate change", just a small upgrade from "it must be god". Click on that list I linked above (and they stopped adding to that years ago!).
        lotsofmangos 12y ago
  - spainispain 12y ago
    And you don't have to be a genius to agree that The King is still alive. The point: "I totally think climate change is involved," Lahner says. "I just don’t have evidence yet." Translation: "I disguise my very personal opinion as a scientific postulation" :-P Crap.
- Ygg2 12y ago
  You missed a really goid article about sea stars wasting from unknown illness. Climate change is mentioned in passing. Also just because it is related to climate change doesn't mean it is bad...
- Cowicide 12y ago
  Clicked link. Read entire article. Saw this at end: " ... He hesitates to chalk up the wasting event to climate change. But he does worry all the same. ..." Closed tab with still open mind.
- badgersandjam 12y ago
  Not sure why you're downvoted. That's bad science regardless of how you look at it. The use of the word "climate" in a quote is a big indicator of bad science as it happens to pay the bills and make a good quote in the press before all other concerns at the moment. If it turns up in a paper at the end and is peer reviewed, then it has some credence but before that, nada. Feynman is rolling in his grave again... Edit: if you downvote, explain yourself or you're a coward and a hypocrite.
  - waterlesscloud 12y ago
    It's bad, irresponsible science. And it's bad, irresponsible journalism to make it a giant orange pull quote. "I think it's X. But I don't have any evidence yet." If you don't have any evidence, you shouldn't be talking about it to a journalist. Who, quite predictably, is going to make a big deal out of it. This sort of thing actively hurts the climate change cause. It's bad, and shouldn't be done.
    - Gravityloss 12y ago
      I guess there was a too high expectation of the audience, and it would better to just stick to what there is evidence of already.
      - waterlesscloud 12y ago
        Yes, actually, particularly when talking to a journalist about possible climate change effects that's precisely what scientists should do. If you need proof this kind of thing hurts the climate change cause, look at this thread, which is nearly entirely a debate over her one statement and nothing about any actual science.
        gd1 12y ago
        Nothing hurts the climate change 'cause' more than it being a 'cause' in the first place. Activism dressed up as science smells, and plenty of people who would otherwise be sympathetic can smell it.
- narrator 12y ago
  Rules of thumb in modern American political discourse: 1. The reason for the problem is always climate change, otherwise there is no reason. For example, credit bubbles, rising autism rates and people in other countries that don't like us happen spontaneously all by themselves, unless they are caused by climate change. 2. The solution for any problem, including climate change, is always to spend more money. Especially when it comes to education, national defense and health care. Spending more money is the only effective solution to all problems. Once the cost to solve a problem is estimated in a news article the only thing required to fix the problem is for the government to spend the specified amount of money.
  - narrator 12y ago
    Hmm... Should have appended a /s to the end for people who didn't get the joke.
awjr 12y ago
So if starfish eat pretty much anything that filters water (muscles), what effect would the Fukushima Accident (March 11th, 2011) have on their radiation levels? Could such an event have triggered a mutation in the virus or could the starfish be hypersensitive to slightly higher background radiation?
- arethuza 12y ago
  Perhaps worth noting that the amount of radiation being leaking from Fukushima are actually pretty small (0.3 terabecquerels per month) when compared to historical H-bomb tests (~100,000 TBq): http://www.newscientist.com/article/dn24100-should-fukushimas-radioactive-water-be-dumped-at-sea.html#.VHMhPMkWv0U http://www.newscientist.com/article/dn24100-should-fukushima... Edit: There was even one, relatively small, nuclear test about 500 miles from San Diego: http://en.wikipedia.org/wiki/Operation_Wigwam http://en.wikipedia.org/wiki/Operation_Wigwam
- fit2rule 12y ago
  This started happening before Fukushima.
debacle 12y ago
IIRC, there is a segment of starfish that can be dissolved similar to a sponge, and this is commonly done when the starfish wants to spread out its biological range due to lack of food. This (http://www.mnn.com/earth-matters/animals/stories/mysterious-wasting-syndrome-is-turning-west-coast-starfish-into-goo http://www.mnn.com/earth-matters/animals/stories/mysterious-...) seems to be a better article from last year about the same syndrome. Apparently this is a cyclical pattern and may be an as yet understood part of the starfish lifecycle. That article mentions warmer waters, overpopulation, and a potential (but as yet undetected) virus, which is also having an impact on the east coast.
pchristensen 12y ago
Best video I've seen, comparing a dive site from Seattle in 2007, 2013, 2014 http://www.diverlaura.me/before-and-after-seastar-wasting-disease/ http://www.diverlaura.me/before-and-after-seastar-wasting-di...
- pyre 12y ago
  Both videos: "This video has been removed by user."
iterationx 12y ago
Not just starfish National Geographic, Nov 17, 2014: Urchins and cucumbers seemed to have escaped the ill effects of the virus until now. But in recent weeks, reports have started to come in that they too are dying along beaches in the Pacific Northwest, Hewson said… [He and his team are] studying the urchins and sea cucumbers that are already dying to see if the same killer is responsible. http://news.nationalgeographic.com/news/2014/11/141117-starfish-dying-epidemic-virus-animal-ocean-science/ http://news.nationalgeographic.com/news/2014/11/141117-starf...
- iterationx 12y ago
  Ronald L. Shimek, PhD, marine biologist, Nov 10, 2014: Jan Kocian, diving photographer extraordinare… has been actively surveying several marine subtidal areas in northern Puget Sound for some time… [During a Sept. 18] dive… on Whidbey Island, Washington… he started seeing things he had never previously observed.… there were many animals lying exposed on the sandy sea floor, looking limp, sick or dead. Red sea cucumbers were flaccid and dead… Aleutian Moon snails were in odd postures… pink/yellow worms [were] another rare or unusual sight…. Nuttall’s cockles were on the sediment surface with their siphons out, instead of being buried… 22nd September, the area containing dying animals was not only still present it was spreading; whatever seemed to be the cause was still doing its dirty work… 25th September [many] red sea cucumbers… were lying fully exposed, and apparently dead… 29th of September… A few living Cucumaria were acting oddly, not quite dead, but just slightly responsive to touch… Numerous green sea urchins were found with their spines in abnormal postures, definitely not looking healthy… The full extent of the dead area, and the reason for the mortality, remain indeterminate. http://www.reef2rainforest.com/2014/11/10/a-shallow-water-dead-zone-in-puget-sound/ http://www.reef2rainforest.com/2014/11/10/a-shallow-water-de... And the polar bears, and the orcas.
idealform01 12y ago
good article, i especially liked the "its anus faces the heavens" bit. i must admit that i was wondering.
tjradcliffe 12y ago
This article is pretty close to junk science reporting. The core argument of the recently published paper it links to (http://www.pnas.org/content/early/2014/11/12/1416625111.full.pdf+html http://www.pnas.org/content/early/2014/11/12/1416625111.full...) is this: 1) No non-viral cause can be found 2) Viral load is higher in symptomatic animals 3) Animals inoculated with homogenized tissue from symptomatic animals almost all become symptomatic. This argues strongly for a viral cause. The argument for the specific virus in question is much less strong, although it does look like a plausible candidate. The reason it is less strong is that the testing is entirely non-specific, and a plausible alternative explanation is that the symptomatic animals are having a tough time of it, immunologically, so an endemic but harmless virus is opportunistically going hog wild. The thing that puts this article into junk science reporting territory is its ritual invocation of climate change, which others have pointed out. Let me be specific about what I see as the issues. The article says flat-out that temperature is not an issue, because the animals don't get better when the temperature drops: "But the current die-off is different. Not only is it bigger, it doesn’t seem to be linked to water temperature. Where other die-offs had slowed down when the waters cooled, this time, the sea stars kept dying through the winter of 2013-2014." Then it contradicts itself and insinuates that maybe it's climate change after all!: The virus probably isn’t the whole story, both Lahner and Raimondi say. Lahner took sea stars that were disintegrating at 54 degrees Fahrenheit and cooled their water to 50 degrees. "They all went from falling apart, having their viscera hanging out, to pretty healthy in a day," she says. "I came back, and they were like, ready for the cover of Vogue. They were perfect." So temperature may play a role in the animals’ ability to recover as well. The north Pacific basin, on average, has warmed by about half a degree centigrade from 1955 to 2013, according to data from the National Oceanic and Atmospheric Administration. "That’s kind of a scary number," says Andy Allegra, a NOAA data specialist. "It’s very large." There is likely something interesting going on here, but this is a pretty big "hmm... that's odd" moment that just goes by un-noticed. Water temperatures around Vancouver are in the 60's in the summer, and drop to the low 40's or even into the 30's in the winter, so you would expect a huge seasonal effect if a change from 54 to 50 resulted in unhealthy animals suddenly being ready for the cover of Vogue". And yet--as quoted above--we are assured that the die-off continued in winter (even as far south as San Diego water temperatures can dip below 50 in January). So this article contains a contradiction of Biblical proportions, the kind of junk reasoning you see in the gibberish of 9/11 conspiracy theorists and climate change denialists (the real kind, who think it's a hoax, not people like me who think nuclear power is a good option for dealing with it, although I often get accused of denialism on that basis.) Science is the discipline of publicly testing ideas by systematic observation, controlled experiment and Bayesian inference. One way we test ideas is by testing as much of their deductive closure as possible: that is, all the things that would be true if the idea was true. If that "big scary number" was in any way significant, we'd expect a huge seasonal effect in the die-off, which is not observed. Furthermore, if temperature has a huge effect in the laboratory and none in the field, there is something missing. Maybe that missing thing is pH, as the article suggests, but note how the otherwise data-heavy account gives no actual numbers on ocean acidification, merely telling us coyly that the oceans have become less basic, not how big the change is? That's because the story is really complicated and quite local--ocean pH varies a lot between locales, and yet seafood manages to grow everywhere: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0016069 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjourna... There is also curiously little mention of the effects of sea-star over-population on this outbreak of (likely) disease. Times were good for West Coast sea-stars in the mid-2000's. I saw species I'd never observed in the '80's or '90's. Population crashes, often due to disease, are not uncommon in nature following population booms. This natural boom/crash cycle is mentioned in passing, but not really given the attention it deserves. Deer populations on Vancouver Island are booming right now too, and when they crash in a few years it won't be due to climate change, although the specific causes may remain mysterious. So this could have been an interesting story on the difficulties of doing good science in a complex natural setting. Instead it invoked the "climate change scary!" meme that has infected virtually every story that has anything to do with anything that happens on a scale larger than a single urban neighbourhood. It does no particularly good service to science to say, "I'm sure climate change is the cause but I can't prove it!" If you're sure, you're not doing science: Bayesian reasoning does not produce certainty. And being "sure" of something you don't have anything like sufficient evidence for is not a good attitude for a scientist to have, and putting it on display like this emboldens those who believe that rather than being an alternative to faith, science is just another kind of faith (which it is not: http://www.tjradcliffe.com/?p=1331 http://www.tjradcliffe.com/?p=1331)

75 points by austinz 12y ago

gd1 12y ago

Clicked link. Hit Ctrl-F. Typed "clima". Saw this: "I totally think climate change is involved," Lahner says. "I just don’t have evidence yet." Closed tab.

jmnicolas 12y ago
So what ? He didn't say man made climate change, just climate change. You don't have to be a genius to see the climate is changing. Now for the root cause, I don't know, but human pollution is certainly not helping.
- mavhc 12y ago
  It's pretty simple really, co2 causes heating, co2 is increasing, increase in co2 is from fossil fuels.
  - Ntrails 12y ago
    Except CO2 from fossil fuels aren't even the largest contribution to "greenhouse gasses" that can be attributed to humans. Climate change is inevitable. It's happened before many times in the history of the earth, and will happen again. The behaviour of man and it's resulting emissions are largely agreed to have been impactful on the rate of change. However, I've seen statisticians and scientists poking rational holes in research (and pilloried for daring to do so by the green lobby). So I default to my standard position, which is that both sides are a bit wrong and the truth is somewhere in the middle. I'll stay here for a while, it's comfortable.
    - mdellabitta 12y ago
      There's a name for that move: https://yourlogicalfallacyis.com/middle-ground https://yourlogicalfallacyis.com/middle-ground
    - jdhendrickson 12y ago
      I've linked a short well made video below which addresses your arguments. TLDW Just because man's emissions are relatively small in comparison to the over all natural emissions does not mean they don't affect things. I implore you, (as you seem a reasonable fellow who values science) to give it a watch and see if you still feel the same way. I'm willing to watch or read any counter argument you care to link if you will do me the same courtesy. https://www.youtube.com/watch?v=OWXoRSIxyIU https://www.youtube.com/watch?v=OWXoRSIxyIU
      - happyscrappy 12y ago
        Can we please not have arguments via video? Surely if the arguments are good there is a write up somewhere.
        lotsofmangos 12y ago
        a - why not? b - click the "show more" button. The text underneath the video is littered with references.
        kaybe 12y ago
        Here is a very good presentation of CO2 measurement values: http://www.esrl.noaa.gov/gmd/ccgg/trends/ http://www.esrl.noaa.gov/gmd/ccgg/trends/ I'm still looking for a non-movie version that shows the whole curve we have (not just the direct measurements). edit: forgot the link Some more good writeups: https://www.skepticalscience.com/argument.php https://www.skepticalscience.com/argument.php http://climatechange.procon.org/ http://climatechange.procon.org/ If anyone has questions - I study this stuff.
      - Ntrails 12y ago
        Youtube is blocked at work, but my understanding was that the mass farming of cattle and the methane they produce was as impactful as the CO2 attributed to fossil fuels in terms of increasing greenhouse gasses. Some googling suggests I am wrong on that though as they claim agriculture is responsible for just 18% of the greenhouse gas (of course one gets wildly differing values depending where you look). My comment wasn't meant to imply that fossil fuels/CO2 isn't relevant, but it's not the whole story. I was clearly wrong as to the extent of agricultural impact :) As for the rest of it, I don't deny climate change. I don't pretend that humans have no impact the rate of change. I get uncomfortable with the way it's a "cause", by the way a statistician who questions methodology is attacked not answered etc etc. It makes me doubt the numbers, not the underlying principles (which are experimentally demonstrable)
    - mavhc 12y ago
      Seems to be the largest to me, most increased radiative forcing is due to co2, and most co2 is from the energy sector, which is mostly fossil fuels. Which matches up with the change the isotope ratios.
- gd1 12y ago
  So what? That's not science, that's religion. That is 'god of the gaps' stuff. I suppose we can add it to the list (http://www.numberwatch.co.uk/warmlist.htm http://www.numberwatch.co.uk/warmlist.htm). Maybe the story was interesting, maybe it was important, whatever. I'm not reading it on principle if they're going to cross themselves and pray to their green god mid way through. There are a number of people like myself who would actually care about ecology/environmental issues if they weren't crowded out by absolute wank like that.
  - terhechte 12y ago
    How is it Religion to have a theory that you're trying to prove? You seem to lack a basic understanding of the scientific method. Her theory is: "climate change is involved". And she is searching for evidence, that is, she is trying to prove it. She doesn't even claim that climate change is involved, it is clearly marked as her opinion. Just like Einstein had the theory that time had to be relative, and then set out to proof it. Your reaction seems to be anger-fueled climate change hate that stops you from thinking in a rational, open minded way. Edit: Gender Error
    - waterlesscloud 12y ago
      Dr. Lesanna Lahner appears to be a "she". :-) (corrected typo)
      - icebraining 12y ago
        *Lesanna
    - gd1 12y ago
      She doesn't posit a plausible mechanism for her theory, does she? It's just the fallback position, "it must be climate change", just a small upgrade from "it must be god". Click on that list I linked above (and they stopped adding to that years ago!).
      - lotsofmangos 12y ago
- spainispain 12y ago
  And you don't have to be a genius to agree that The King is still alive. The point: "I totally think climate change is involved," Lahner says. "I just don’t have evidence yet." Translation: "I disguise my very personal opinion as a scientific postulation" :-P Crap.
Ygg2 12y ago
You missed a really goid article about sea stars wasting from unknown illness. Climate change is mentioned in passing. Also just because it is related to climate change doesn't mean it is bad...
Cowicide 12y ago
Clicked link. Read entire article. Saw this at end: " ... He hesitates to chalk up the wasting event to climate change. But he does worry all the same. ..." Closed tab with still open mind.
badgersandjam 12y ago
Not sure why you're downvoted. That's bad science regardless of how you look at it. The use of the word "climate" in a quote is a big indicator of bad science as it happens to pay the bills and make a good quote in the press before all other concerns at the moment. If it turns up in a paper at the end and is peer reviewed, then it has some credence but before that, nada. Feynman is rolling in his grave again... Edit: if you downvote, explain yourself or you're a coward and a hypocrite.
- waterlesscloud 12y ago
  It's bad, irresponsible science. And it's bad, irresponsible journalism to make it a giant orange pull quote. "I think it's X. But I don't have any evidence yet." If you don't have any evidence, you shouldn't be talking about it to a journalist. Who, quite predictably, is going to make a big deal out of it. This sort of thing actively hurts the climate change cause. It's bad, and shouldn't be done.
  - Gravityloss 12y ago
    I guess there was a too high expectation of the audience, and it would better to just stick to what there is evidence of already.
    - waterlesscloud 12y ago
      Yes, actually, particularly when talking to a journalist about possible climate change effects that's precisely what scientists should do. If you need proof this kind of thing hurts the climate change cause, look at this thread, which is nearly entirely a debate over her one statement and nothing about any actual science.
      - gd1 12y ago
        Nothing hurts the climate change 'cause' more than it being a 'cause' in the first place. Activism dressed up as science smells, and plenty of people who would otherwise be sympathetic can smell it.
narrator 12y ago
Rules of thumb in modern American political discourse: 1. The reason for the problem is always climate change, otherwise there is no reason. For example, credit bubbles, rising autism rates and people in other countries that don't like us happen spontaneously all by themselves, unless they are caused by climate change. 2. The solution for any problem, including climate change, is always to spend more money. Especially when it comes to education, national defense and health care. Spending more money is the only effective solution to all problems. Once the cost to solve a problem is estimated in a news article the only thing required to fix the problem is for the government to spend the specified amount of money.
- narrator 12y ago
  Hmm... Should have appended a /s to the end for people who didn't get the joke.

awjr 12y ago

So if starfish eat pretty much anything that filters water (muscles), what effect would the Fukushima Accident (March 11th, 2011) have on their radiation levels? Could such an event have triggered a mutation in the virus or could the starfish be hypersensitive to slightly higher background radiation?

arethuza 12y ago
Perhaps worth noting that the amount of radiation being leaking from Fukushima are actually pretty small (0.3 terabecquerels per month) when compared to historical H-bomb tests (~100,000 TBq): http://www.newscientist.com/article/dn24100-should-fukushimas-radioactive-water-be-dumped-at-sea.html#.VHMhPMkWv0U http://www.newscientist.com/article/dn24100-should-fukushima... Edit: There was even one, relatively small, nuclear test about 500 miles from San Diego: http://en.wikipedia.org/wiki/Operation_Wigwam http://en.wikipedia.org/wiki/Operation_Wigwam
fit2rule 12y ago
This started happening before Fukushima.

debacle 12y ago

IIRC, there is a segment of starfish that can be dissolved similar to a sponge, and this is commonly done when the starfish wants to spread out its biological range due to lack of food. This (http://www.mnn.com/earth-matters/animals/stories/mysterious-wasting-syndrome-is-turning-west-coast-starfish-into-goo http://www.mnn.com/earth-matters/animals/stories/mysterious-...) seems to be a better article from last year about the same syndrome. Apparently this is a cyclical pattern and may be an as yet understood part of the starfish lifecycle. That article mentions warmer waters, overpopulation, and a potential (but as yet undetected) virus, which is also having an impact on the east coast.

pchristensen 12y ago

Best video I've seen, comparing a dive site from Seattle in 2007, 2013, 2014 http://www.diverlaura.me/before-and-after-seastar-wasting-disease/ http://www.diverlaura.me/before-and-after-seastar-wasting-di...

pyre 12y ago
Both videos: "This video has been removed by user."

iterationx 12y ago

Not just starfish National Geographic, Nov 17, 2014: Urchins and cucumbers seemed to have escaped the ill effects of the virus until now. But in recent weeks, reports have started to come in that they too are dying along beaches in the Pacific Northwest, Hewson said… [He and his team are] studying the urchins and sea cucumbers that are already dying to see if the same killer is responsible. http://news.nationalgeographic.com/news/2014/11/141117-starfish-dying-epidemic-virus-animal-ocean-science/ http://news.nationalgeographic.com/news/2014/11/141117-starf...

iterationx 12y ago
Ronald L. Shimek, PhD, marine biologist, Nov 10, 2014: Jan Kocian, diving photographer extraordinare… has been actively surveying several marine subtidal areas in northern Puget Sound for some time… [During a Sept. 18] dive… on Whidbey Island, Washington… he started seeing things he had never previously observed.… there were many animals lying exposed on the sandy sea floor, looking limp, sick or dead. Red sea cucumbers were flaccid and dead… Aleutian Moon snails were in odd postures… pink/yellow worms [were] another rare or unusual sight…. Nuttall’s cockles were on the sediment surface with their siphons out, instead of being buried… 22nd September, the area containing dying animals was not only still present it was spreading; whatever seemed to be the cause was still doing its dirty work… 25th September [many] red sea cucumbers… were lying fully exposed, and apparently dead… 29th of September… A few living Cucumaria were acting oddly, not quite dead, but just slightly responsive to touch… Numerous green sea urchins were found with their spines in abnormal postures, definitely not looking healthy… The full extent of the dead area, and the reason for the mortality, remain indeterminate. http://www.reef2rainforest.com/2014/11/10/a-shallow-water-dead-zone-in-puget-sound/ http://www.reef2rainforest.com/2014/11/10/a-shallow-water-de... And the polar bears, and the orcas.

idealform01 12y ago

good article, i especially liked the "its anus faces the heavens" bit. i must admit that i was wondering.

tjradcliffe 12y ago

This article is pretty close to junk science reporting. The core argument of the recently published paper it links to (http://www.pnas.org/content/early/2014/11/12/1416625111.full.pdf+html http://www.pnas.org/content/early/2014/11/12/1416625111.full...) is this: 1) No non-viral cause can be found 2) Viral load is higher in symptomatic animals 3) Animals inoculated with homogenized tissue from symptomatic animals almost all become symptomatic. This argues strongly for a viral cause. The argument for the specific virus in question is much less strong, although it does look like a plausible candidate. The reason it is less strong is that the testing is entirely non-specific, and a plausible alternative explanation is that the symptomatic animals are having a tough time of it, immunologically, so an endemic but harmless virus is opportunistically going hog wild. The thing that puts this article into junk science reporting territory is its ritual invocation of climate change, which others have pointed out. Let me be specific about what I see as the issues. The article says flat-out that temperature is not an issue, because the animals don't get better when the temperature drops: "But the current die-off is different. Not only is it bigger, it doesn’t seem to be linked to water temperature. Where other die-offs had slowed down when the waters cooled, this time, the sea stars kept dying through the winter of 2013-2014." Then it contradicts itself and insinuates that maybe it's climate change after all!: The virus probably isn’t the whole story, both Lahner and Raimondi say. Lahner took sea stars that were disintegrating at 54 degrees Fahrenheit and cooled their water to 50 degrees. "They all went from falling apart, having their viscera hanging out, to pretty healthy in a day," she says. "I came back, and they were like, ready for the cover of Vogue. They were perfect." So temperature may play a role in the animals’ ability to recover as well. The north Pacific basin, on average, has warmed by about half a degree centigrade from 1955 to 2013, according to data from the National Oceanic and Atmospheric Administration. "That’s kind of a scary number," says Andy Allegra, a NOAA data specialist. "It’s very large." There is likely something interesting going on here, but this is a pretty big "hmm... that's odd" moment that just goes by un-noticed. Water temperatures around Vancouver are in the 60's in the summer, and drop to the low 40's or even into the 30's in the winter, so you would expect a huge seasonal effect if a change from 54 to 50 resulted in unhealthy animals suddenly being ready for the cover of Vogue". And yet--as quoted above--we are assured that the die-off continued in winter (even as far south as San Diego water temperatures can dip below 50 in January). So this article contains a contradiction of Biblical proportions, the kind of junk reasoning you see in the gibberish of 9/11 conspiracy theorists and climate change denialists (the real kind, who think it's a hoax, not people like me who think nuclear power is a good option for dealing with it, although I often get accused of denialism on that basis.) Science is the discipline of publicly testing ideas by systematic observation, controlled experiment and Bayesian inference. One way we test ideas is by testing as much of their deductive closure as possible: that is, all the things that would be true if the idea was true. If that "big scary number" was in any way significant, we'd expect a huge seasonal effect in the die-off, which is not observed. Furthermore, if temperature has a huge effect in the laboratory and none in the field, there is something missing. Maybe that missing thing is pH, as the article suggests, but note how the otherwise data-heavy account gives no actual numbers on ocean acidification, merely telling us coyly that the oceans have become less basic, not how big the change is? That's because the story is really complicated and quite local--ocean pH varies a lot between locales, and yet seafood manages to grow everywhere: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0016069 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjourna... There is also curiously little mention of the effects of sea-star over-population on this outbreak of (likely) disease. Times were good for West Coast sea-stars in the mid-2000's. I saw species I'd never observed in the '80's or '90's. Population crashes, often due to disease, are not uncommon in nature following population booms. This natural boom/crash cycle is mentioned in passing, but not really given the attention it deserves. Deer populations on Vancouver Island are booming right now too, and when they crash in a few years it won't be due to climate change, although the specific causes may remain mysterious. So this could have been an interesting story on the difficulties of doing good science in a complex natural setting. Instead it invoked the "climate change scary!" meme that has infected virtually every story that has anything to do with anything that happens on a scale larger than a single urban neighbourhood. It does no particularly good service to science to say, "I'm sure climate change is the cause but I can't prove it!" If you're sure, you're not doing science: Bayesian reasoning does not produce certainty. And being "sure" of something you don't have anything like sufficient evidence for is not a good attitude for a scientist to have, and putting it on display like this emboldens those who believe that rather than being an alternative to faith, science is just another kind of faith (which it is not: http://www.tjradcliffe.com/?p=1331 http://www.tjradcliffe.com/?p=1331)