Over 15 years of ocean science and conservation online
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
https://www.youtube.com/watch?v=GSMGKwZBaWM
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
My wife, on the other hand, is a social scientist who works on development here in Mexico. When we first started dating, I used to tease her for being a soft little scientist in her soft little science. I now understand that helping a community pull itself out of poverty is more complex than brain surgery or quantum physics.
There is no magic equation for community organizing but she begins by understanding that “the community” isn’t some monolithic creature that thinks as a unit. There are complex politics and power dynamics at work that can either aid or destroy all her efforts.
I now understand why the vaquita is going extinct. They sent too many people like me into the region and not enough like her.
I’ve been away for 2 weeks, so it’s a super-massive edition of the Monday Morning Salvage!
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
Jetsam (what we’re enjoying from around the web)
Hey, Andrew, how about you give us at least *some* good news today? Ok, fine.
This is an update and repost of our seminal article on the science of Aquaman, revised and expanded.
Aquaman may not be everybody’s favorite superhero, but since his creation in 1941, he has been among DC’s most enduring icons. During the Golden Age of comics, he held his own against Superman, Batman, and Wonder Woman. Silver Age Aquaman was a founding member and eventually leader of the Justice League. His powers, tied to the ocean, forced writers to create a compelling, complex hero with explicit limitations. In the early days, when Superman’s strength was practically infinite, and Batman’s brilliance was unmatched, Aquaman had to become more than just a superhero, he had to be a person.
If Superman existed to show us how high the human spirit could fly, and Batman to show us the darkness within even our most noble, Aquaman is here to show us the world that triumphs in our absence. The ocean is not ours, and no matter how great our technology, we will never master it as we have mastered land. Aquaman has. Through this lonely ocean wanderer, we can experience a world that we can never truly command. In many ways, Aquaman was stronger than the Man of Steel and darker than the Dark Knight. He knew loneliness that the orphan and the alien exile never could.
Even though Aquaman had to fight harder, endure the jokes of other, less interesting heroes, and find relevance in an ecosystem hostile to the humans that had to empathize with him, Aquaman was never forced to confront the truly horrifying consequences of life in the ocean.
The penetrating cold
Aquaman is, for all intents and purposes, a marine mammal. With the exception of a healthy mane in later incarnations, he is effectively hairless. As a human, we would expect his internal body temperature to hover around 99°F, or about 37°C. Even at its warmest points, the surface temperature of the ocean around the equator is only about 80°F/27°C. At the poles, ocean temperature can actually drop a few degrees below freezing. In the deep sea, ambient temperature levels out around 2 to 4°C. The ocean is cold, and water is a much better thermal conductor than air. Warm blooded species have evolved many different systems to manage these gradients, including countercurrent heat exchangers, insulating fur, and heavy layers of blubber. This is what a marine mammal that can handle cold waters look like:
Aquaman is not just a human, he is an atypically uninsulated human. If the man has more than 2% body fat, I’d be shocked. In contrast, warm-water bottlenose dolphins have at least 18 to 20% body fat. Anyone who SCUBA dives knows that, even with a 12 millimeter neoprene wet suit, after a few hours in 80°F water, you get cold. Aquaman, lacking any visible insulation, should have slipped into hypothermia sometime early in More Fun Comics #73. He is built for the beach rather than the frigid deep.
Read More “The horrifying physiological and psychological consequences of being Aquaman” »
Flotsam (what we’re obsessed with right now)
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
Sixteen hundred meters deep, off the coast of Okinawa, a new kind of mining just cut it’s teeth.
Earlier today, the Japan Times reported that a mining tool has successfully extracted zinc and other metals from a hydrothermal vent on the seafloor. There’s not much to go on yet. We don’t know if these were active or dormant vents (though dormant doesn’t mean biologically dead). We don’t know the specific location of the experimental mine site. And we don’t know the footprint of the ore prospect. But we do know that Japan has identified at least 6 potential mining sites within its exclusive economic zone and that plans are moving forward for a commercial mining venture in mid-2020. I’ve only found one report in English and from the look of things, there’s only a press release circulating right now, but I’m certain we’ll be hearing much more about this in the coming weeks.
We’re still watching to see what Nautilus Minerals does at Solwara 1 and how manganese nodule mining proposals in the Clarion Clipperton fracture zone are progressing but Japan’s mining efforts present a sea change in how to anticipate future deep-sea mining efforts. Private commercial ventures are dependent on the whims of the global commodities market and subject to national and international regulation. National efforts are driven by the need for resource independence. I was aware of Japan’s efforts, but didn’t realize that they were as close as they are to being ready for production.
For the last 10 years, we’ve been saying that deep-sea mining of hydrothermal vents is imminent. Well, it’s here.
Read More “Japan becomes the first nation to mine a deep-sea hydrothermal vent” »
Fog Horn (A Call to Action)
Flotsam (what we’re obsessed with right now)
I have a new paper out today: Population structure of Bathymodiolus manusensis, a deep-sea hydrothermal vent-dependent mussel from Manus Basin, Papua New Guinea.
We sampled two sites in Papua New Guinea where these deep-sea mussels aggregate and looked at their genes to determine if there was any population structure across this relatively small spatial scale (~40 km). We found one homogeneous population. We also looked at representatives from other ocean basins and determined that mussel populations within Manus Basin are younger than those in neighboring basins. This is a pattern we’ve observed in several other studies as well.
This is not, by any stretch, a ground-breaking, paradigm-shifting study. But studies like this, baseline, foundation-building studies, are absolutely essential for conservation biology.
Read More “Protecting the ocean means lots of rigorous, mundane science.” »