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Tag: fungi

5000 dives under the sea, plastic nomming fungi, scanning Belize’s Blue Hole, the thawing Northwest Passage, and more! Monday Morning Salvage: December 3, 2018.

Posted on December 3, 2018 By Andrew Thaler
Weekly Salvage

Foghorn (A Call to Action!)

  • With ice melting in Canada’s Northwest Passage, the area will soon be a new route for international shipping. Follow Life Under the Ice on OpenExplorer!

Flotsam (what we’re obsessed with right now)

  • Legendary submarine pilot Erika Bergman is exploring Belize’s Blue Hole using state-of-the-art SONAR scanning tools and ROVs. A couple floppy-haired dudes are going too.
  • DSV Alvin made its 5000th dive. Way to go, little submarine!
  • A boon to ocean conservation? Certain fungi can degrade marine plastics.
  • I missed this over the summer, but Nash was an incredible guide and touring ancient Chamorro caves with him was the highlight of my time in Guam. He will be missed by many: Traditional seafarer Ignacio ‘Nash’ Camacho dies.
Ignacio R. "Nash" Camacho, a Traditions About Seafaring Islands member, and codesigner of the Chamoru Sakman outrigger replica canoe "Tasi," talks about his creation during a ceremony at the Guam Museum on June 29, 2017.
Ignacio R. “Nash” Camacho, a Traditions About Seafaring Islands member, and codesigner of the Chamoru Sakman outrigger replica canoe “Tasi,” talks about his creation during a ceremony at the Guam Museum on June 29, 2017.

Read More “5000 dives under the sea, plastic nomming fungi, scanning Belize’s Blue Hole, the thawing Northwest Passage, and more! Monday Morning Salvage: December 3, 2018.” »

High octopuses don’t love you back, sextants in space, protect our ocean monuments, and more! Monday Morning Salvage: September 24, 2018

Posted on September 24, 2018September 23, 2018 By Andrew Thaler
Weekly Salvage

Logo for Monday Morning Salvage.

Foghorn (a call to action)

  • After a decade spent expanding marine protection throughout the US EEZ, the federal government is going to war on healthy oceans: The Trump Administration’s New Attack on Marine Monuments.
  • Want to work for COMPASS in DC? One of the nation’s preeminent science communications institutions is hiring, and trust me, DC needs you.
  • If fleeing to Canada is more your style (David (¬_¬) ), Ocean Watch is hiring a manager to plan, manage and execute the Coastal Ocean Health Initiative.

Flotsam (what we’re obsessed with right now)

  • Gulper Eels are amazing. Amazing.
  • This is an amazing series of visualizations from the Guardian. Seven endangered species that could (almost) fit in a single train carriage.
There are approximately 30 vaquitas left in the world Illustration: Mona Chalabi
There are approximately 30 vaquitas left in the world
Illustration: Mona Chalabi
  • There are sextants on the International Space Station and I can’t stop thinking about it.

Read More “High octopuses don’t love you back, sextants in space, protect our ocean monuments, and more! Monday Morning Salvage: September 24, 2018” »

Beware the walrus, explosion detected near missing submarine, diamond mining, and more! Monday Morning Salvage: November 27, 2017

Posted on November 27, 2017 By Andrew Thaler
Weekly Salvage

Fog Horn (A Call to Action)

  • In Port Moresby this Wednesday? The University of Papua New Guinea is hosting a public lecture and panel on experimental seabed mining in the Bismark Sea.

Flotsam (what we’re obsessed with right now)

  • Text abbreviations for marine biologists. Courtesy of New Scientist. via Francis Villatoro.

Read More “Beware the walrus, explosion detected near missing submarine, diamond mining, and more! Monday Morning Salvage: November 27, 2017” »

Nerds of trust, deep-sea mining, ocean art, and more! Monday Morning Salvage: July 3, 2017

Posted on July 3, 2017July 2, 2017 By Andrew Thaler
Weekly Salvage

Fog Horn (A Call to Action)

  • Protect the Outer Continental Shelf! Last week, the president announced a plan to open up significant portions of the outer continental shelf for oil and gas exploration. Call you representative! The public comment period opens today and runs through August 17. We’ll have a template script prepped for your use by the end of the week.

Flotsam (what we’re obsessed with right now)

  • Deep-sea mining. It’s closer to happening now than ever before, and scientists, conservationists, and ocean stakeholders are very concerned.
Image: James St. John/Flickr Creative Commons
  • Can deep-sea mining avoid the environmental mistakes of mining on land? As an industry, probably not.
  • Experts Warn that Seabed Mining Will Lead to ‘Unavoidable’ Loss of Biodiversity. And check below for the primary source, co-authored by several leaders in deep ocean science.

Read More “Nerds of trust, deep-sea mining, ocean art, and more! Monday Morning Salvage: July 3, 2017” »

Five organisms with real super powers that rival their comic book counterparts

Posted on January 2, 2013September 19, 2013 By Andrew Thaler 6 Comments on Five organisms with real super powers that rival their comic book counterparts
Popular Culture, Science

Andrew ThumbThere is no force more creative than the painstakingly slow process of evolution. Ever wanted to walk through walls? Naked mole rats can physically bore through concrete. How about fly? There are a couple dozen different ways to accomplish that goal, even if you’re a squid. Incredible power of regeneration? Flatworms, roundworms, and echinoderms have us beat. Among the vertebrates, species like the axolotl can regrow limbs, organs, and parts of their brain. For practically every super power we can imagine, something on the tree of life has come up with a real-world analog.

Some real super power are more super than others:

1. The immortal rotifer that absorbs the abilities of anything it touches.

Bdelloid Rotifers. photo by Diego Fontaneto
Bdelloid Rotifers. photo by Diego Fontaneto

Around 80 million years ago, a small, unassuming group of metazoa decided that sex just wasn’t for them. Instead of going through the effort of recombining their genetic material with a mate every generation to produce a viable offspring with a roughly 50% contribution from each parent, Bdelloid Rotifers started reproducing asexually. Males completely disappeared from class bdelloidea, leaving females to generate genetic duplicates through parthenogenesis. This is not their super power.

Bdelloid rotifers are incredibly tough. When environmental conditions are less than favorable, they can enter a dormant state. In this dormant state,they can survive the worst unscathed. Dehydrated, they can endure extreme temperatures, drought, even ionizing radiation. A bdelloid rotifer in its dormant state can even survive in space. If that isn’t enough, while dormant, these rotifers continue to produce offspring, which also remain  dormant. This is not their super power.

Bdelloid rotifers’ super power appears when they recover from their dormant state. As they rehydrate and repair whatever damage their cells incurred, they incorporate DNA fragments from their environment. This includes partially digested food and any DNA in close proximity to them, even bacterial and archael DNA. It is this ability that allows bdelloid rotifers to overcome the limitations of asexual reproduction and survive for 80 million years without mates. They can literally absorb the attributes of those around them.

Their incredible toughness, celibate lifestyle, and ability to absorb the powers of anything they touch, put Bdelloid Rotifers firmly on par with X-Men perennial favorite: Rogue.

Read More “Five organisms with real super powers that rival their comic book counterparts” »

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.

Read More “That sinking feeling: Hog lagoons, superbugs, and the proliferation of antibiotics in livestock” »

The importance of failure in graduate student training

Posted on September 13, 2011September 13, 2011 By Andrew Thaler 6 Comments on The importance of failure in graduate student training
Science

Running the winch at dusk

The A-frame shuddered as the box core, heavy with mud and reeking of sulfur, emerged from the water. We knew that it had found its mark 2300 meters below. Soft sediment from the seafloor oozed out the sides as I slid the safety pins into the spade arm. There was nothing visibly special about this mud. No ancient arthropods or primeval polychaetes crawled through this muck. It was a cubic meter of sticky, stinking glop. My first sample.

We were in the middle of the Gulf of Mexico, aboard the R/V Cape Hatteras. Our cruise objectives were to characterize the pelagic and benthic fauna associated with deep-sea methane seeps. For me, it was a ship of opportunity. In exchange for and extra set of hands to work the gear and process samples, I could add my own small research project to the cruise objectives. My goal was to collect sediment cores from multiple sites and survey the diversity of fungi associated with these methane seeps.

The 12 hour shifts rarely left me enough time to eat meals. Though I had never seen the equipment before we left port I became the acoustic tracking technician, out of necessity. Things consistently went wrong. Nets tore, gear broke, a misfired box core almost crushed my leg. Two hurricanes, one a category 5, hit the Gulf of Mexico while we were at sea. Work was exhausting and rest was brief, when existent. I loved every minute of it.

The end of that cruise was the high point of a 4 year project that began with unbridled optimism and early, exciting results, only to decay into drudgery, failure, desperation, and collapse. In the end, it would rise from the past for one small victory. In hindsight, so much of those four years seems painfully trivial, but this story is really about how much of a human being is poured into a scientific manuscript.

Read More “The importance of failure in graduate student training” »

The moldy kingdom gets a new neighbor

Posted on May 13, 2011May 24, 2011 By Andrew Thaler 6 Comments on The moldy kingdom gets a new neighbor
Science
A diagrammatic tree depicting the organisation of most eukaryotes into six major groups. The relationships amongst most of the major groups and the position of the ‘root’ of the tree are shown as unresolved (note however, the grouping of Opisthokonta and Amoebozoa). The arrow shows a possible precise placement of the root, based on gene fusion data. (Simpson and Roger 2004)

Depending on your view of phylogenetics, a recent publication in Nature reporting the discovery of a new kingdom-level branch on the tree of life, basal to Kingdom Fungi, is either a major revision of our current view of taxonomy or completely unsurprising and expected. While we mostly refer to the four kingdoms within Domain Eukarya as Protista, Plantae, Fungi, and Animalia, it’s understood by the scientific community that Protista is essentially a catch-all category, not a true clade, for eukaryotes that don’t quite fit into the other three groups. While this is convenient for organization, it fails to adequately express the diversity of protists. Four kingdoms is a useful system, but there’s no reason why diversity at the kingdom level couldn’t be much higher. A strict cladist could  create hundreds, if not thousands of kingdoms from Protista alone.

Read More “The moldy kingdom gets a new neighbor” »

Biodiversity Wednesday: Planet Wild – Fungi

Posted on August 25, 2010August 25, 2010 By Andrew Thaler
Uncategorized

Biodiversity Wednesday: Paul Stamets – Bioremediation with Fungi

Posted on August 18, 2010July 26, 2010 By Andrew Thaler
Uncategorized

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