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Author: Andrew Thaler

Marine science and conservation. Deep-sea ecology. Population genetics. Underwater robots. Open-source instrumentation. The deep sea is Earth's last great wilderness.

That sinking feeling: Hog lagoons, superbugs, and the proliferation of antibiotics in livestock

Posted on January 2, 2012January 2, 2012 By Andrew Thaler 9 Comments on That sinking feeling: Hog lagoons, superbugs, and the proliferation of antibiotics in livestock
Science

From here, it looks like such a lovely pond. Photo by Andrew David Thaler
From here, it looks like such a lovely pond. Photo by Andrew David Thaler

The murky brown water was still, reflecting, perfectly, the drifting clouds above. Had I not known what it was, an acre-wide manmade pond almost a dozen feet deep filled to the brim with hog feces, I might be tempted to describe it as “beautiful”. Hog lagoons like this are a common sight in North Carolina, though their use is in decline. My lab group arrived at this particular lagoon to take microbial samples, fungi in this case, from the steaming cauldron of organic waste: an ideal culture medium. Carefully, we loaded a small skiff and rowed out into the stink. Near the center, we gingerly dipped our sampling vials, affixed to the end of an old fishing pole, into the dense fluid. It was then that we noticed the rising waterline, the slow trickle at the stern, the shift in balance. We locked the oars and rowed, frantically, towards shore. Our labmates on shore had, thankfully, tied a line to the bow before we departed. The skiff’s gunwales were creeping closer and closer to the water. We were sinking. We were sinking in a lake of pig shit.

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The top eleven science hashtags of 2011

Posted on December 30, 2011December 31, 2011 By Andrew Thaler 8 Comments on The top eleven science hashtags of 2011
Uncategorized

Science is a conversation, and in 2011, a significant portion of that conversation happened on twitter. 2011 saw some fascinating new discoveries, bizarre assertions, disheartening revelations, and brilliant discussions. Twitter, it seems, is both a petri dish for nuggets of insight and an autoclave for steaming piles. So, without any further ado, here are the top 11 science hastags of 2011.

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A morning with Christopher Hitchens

Posted on December 16, 2011December 17, 2011 By Andrew Thaler 2 Comments on A morning with Christopher Hitchens
Uncategorized

Christopher Hitchens, author, intellectual, and atheist firebrand, passed away last night. While I’m sure the internet will be filled over the coming days with fitting remembrances from those who knew him well, I couldn’t help but take the time to reflect on my one meeting with the iconic author. Several years ago, when I was … Read More “A morning with Christopher Hitchens” »

Mining the Deep Sea: what’s it worth?

Posted on December 13, 2011December 15, 2011 By Andrew Thaler
Conservation, Science

a fragment of a hydrothermal vent
The shimmering insides of a vent chimney

In Jules Verne’s 20,000 Leagues Under the Sea*, the iconic Captain Nemo announced that “in the depths of the ocean, there are mines of zinc, iron, silver and gold that would be quite easy to exploit” while predicting that the abundance of marine resources could satisfy human need. If the pace of development for deep-sea mining projects and the estimated value of deep-sea ores is any indicator, it seems as though our misanthropic mariner was wrong on both counts.

In The abundance of seafloor massive sulfide deposits, an international team of geologists attempts to quantify the total available copper and zinc contained in deep-sea massive sulfide mounds. Seafloor massive sulfide mounds are a byproduct of the processes that create deep-sea hydrothermal vents. As super-heated sea water emerges from the vent, it deposits heavy metals and other elements and minerals along the walls of the vent. Over thousands of years, an active vent field can build up a huge mound of metal and mineral rich ore – a massive sulfide mound. In addition to copper and zinc, these mounds can contain gold and silver. Generally, the ore is of much higher quality than its terrestrial counterpart. Over the last few decades, many exploration companies were eyeing these deposits, but it’s only recently that technological developments and economic incentives have aligned to permit potentially profitable deep-sea mining.

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Open thread for NOAA scientists to speak freely about scientific and technical matters based on their official work without approval from the public affairs office or their supervisors.

Posted on December 8, 2011 By Andrew Thaler 1 Comment on Open thread for NOAA scientists to speak freely about scientific and technical matters based on their official work without approval from the public affairs office or their supervisors.
Science

Yesterday the National Oceanic and Atmospheric Association (NOAA) released their new scientific integrity policy, which specifically states that: “To support a culture of openness, one of the policy’s key provisions affirms unequivocally that NOAA scientists may speak freely with the media and public about scientific and technical matters based on their official work without approval … Read More “Open thread for NOAA scientists to speak freely about scientific and technical matters based on their official work without approval from the public affairs office or their supervisors.” »

Better Conservation through Cloning: this cock doesn’t crow

Posted on December 7, 2011December 7, 2011 By Andrew Thaler 7 Comments on Better Conservation through Cloning: this cock doesn’t crow
Conservation, Science

Poor Vindaloo never learned to crow.
Poor Vindaloo never learned to crow. Photo by Andrew David Thaler.

I awoke one morning early last spring to a noise I has been dreading for weeks, the first crow of a chicken that was not supposed to be a rooster. It took me several minutes to fully register what I was hearing. Rather that the classic cock-a-doodle-do we often associate with the rooster’s crow, the sound emanating from my hen house was an awkward, unstable noise not unlike a turkey squawking through a vat of molasses while being vigorously shaken. Over the next several months, two more cocks arrived crowing, in my flock. All three roosters, different breeds from different parents, made noises resembling nothing like a rooster’s crow. There was no pattern; some mornings they would crow off-and-on for a few hours, other mornings they would, for lack of a better word, gargle for half-an-hour straight.

I raise my chickens from day-old hatchlings. Those three roosters, from my very first flock, had never met an adult chicken. They imprinted on Amy and me and looked to us for guidance. When we introduced them to new food, new water dispensers, even small changes to their habitat (like a particularly terrifying log), we had to teach them. Instinctively, they would scratch for food, and if left to their own devices, they would attempt to eat everything, but for the most part, we had to show them how to eat, how to drink, how to roost. But we could not teach them how to crow.

Which is why Casey B. Mulligan’s Economix article in the New York Times – Species Protection and Technology – which argues that cloning could be an effective tool to restore extinct species (a topic I’ve been thinking about quite a bit in terms of population dynamics), is fatally flawed.

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Bluefin Tuna, Big Game Hunters, and the Conservation Vortex

Posted on November 29, 2011December 9, 2011 By Andrew Thaler 4 Comments on Bluefin Tuna, Big Game Hunters, and the Conservation Vortex
Conservation, Science

Bluefin Tuna. Public Domain NOAA
Bluefin Tuna. Public Domain NOAA

Why are we still killing Bluefin Tuna? This question has resonated through the ocean blogosphere recently, as various experts weigh the issues surrounding overfishing and wonder why, when we know how limited the Bluefin Tuna populations are, and how precipitously they’ve declined in the last decade, do they demand record-breaking prices able to support an industry that must range further afield to chase that last, lonely fish? Other conservation writers discuss the recent extinction of not one, but two, rhinoceros species and ponder the fate of large terrestrial mammals. Knowing how rare these rhinoceroses were, why did they continue to be poached? Where does this demand come from?

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For lack of a suitably embarrassing picture this morning…

Posted on November 28, 2011December 9, 2011 By Andrew Thaler 1 Comment on For lack of a suitably embarrassing picture this morning…
Uncategorized

…here’s David bowling. Go! Vote! Shiffman! Shiffman! Shiffman!

Are Neutrinos really faster than light? Irish folk rock parody band weighs in.

Posted on November 27, 2011December 9, 2011 By Andrew Thaler
Popular Culture, Science

From the same people who brought us the eminently catchy “There’s no one as Irish as Barack O’Bama.” Quoth Ger Corrigan “for the moment we are backing Albert and his theory, I’m no Einstein but he was.” The Neutrino Song: httpv://www.youtube.com/watch?v=vpMY84T8WY0

A traumatic lead

Posted on November 27, 2011December 9, 2011 By Andrew Thaler 8 Comments on A traumatic lead
Uncategorized

David Shiffman remains in the lead for the 2011 Blogging Scholarship, but there’s been a shake-up over the last few days and a new challenger is climbing the ranks. Let’s make sure this upstart doesn’t climb much higher.

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