#ocean environment

[climatecalling]

Holly, which was put out of use in 2015, is one of 27 oil rigs built off the coast of California decades ago that have become hotbeds of biological activity. While not natural structures, their platforms have been embedded into the muddy seabed long enough to become part of the ocean environment, providing a home for creatures like mussels and barnacles, which in turn attract larger fish and sea lions that find safety and food there. After two and a half decades of studying the rigs, Bull says it’s clear to her: “These places are extremely productive, both for commercial and recreational fisheries and for invertebrates.”

[mediocrephd]

My last post about life found under hydrothermal vents got me really interested in the process behind chemosynthesis!

So I found this really helpful fact sheet from the US government's National Oceanic and Atmospheric Administration:

(it was free to find and download, so I assume I'm fine to share it here)

[ongoing-catastrophe]

this also means that deep sea mining has more pressing environmental concerns that previously thought! all the more reason to shift away from extractive fossil fuels

fuuuuuuuuuuuuuuuuuuuck

[littledoughty]

Sargassum is a macroalgae that the Sargasso sea is named after. It serves as both a temporary and permanent environment for many ocean creatures.

[lizzybizzyart]

lighthouse study. started in sketchbook and finished in procreate

[seabattical]

[hope-for-the-planet]

Endangered Species Sightings from This Year

This is thought to be the first time in over 20 years that a blue whale was spotted off the Coast of Massachusetts.

I highly recommend watching the video and listening to the reaction of the people on the whale watching boat--the cheers and emotion in some of their voices, especially the woman saying "I'm trying not to" when someone jokingly tells her not to cry.

This is the first time ever that a mother clouded leopard with two cubs has been spotted on a game cam!

"After being considered regionally extinct for over a century, giant anteaters have been spotted roaming once again in Brazil's Rio Grande do Sul state. Scientists have concluded these returned natives ventured over from Argentina's Ibera Park, where conservationists have released around 110 rescued and captive-bred anteaters since 2007."

Over 100 years and the anteaters are finally coming home!

[tofupixel]

a pixel art wip

see wips and timelapses early here on my ko-fi

[mienar]

"as the sun sets,"

instagram | shop | commission info

[nasa]

For Earth Day, we’re inviting you to take a moment to celebrate our wonderful water world, Earth. As far as we know, our Blue Marble is the only place in the universe with life, and that life depends on water. Snap a photo of yourself outside and tag it #GlobalSelfie – bonus points if your selfie features your favorite body of water! http://go.nasa.gov/3xFt0H0

Make sure to follow us on Tumblr for your regular dose of space!

[reasonsforhope]

"One of the least respected but most important ecosystems on Earth are seagrass meadows, and a pioneering robotic solution is helping marine scientists restore these underwater gardens.

The ReefGen Grasshopper can plant dozens of seagrass seeds per minute. Not only is this faster than a human diver, but much safer as well.

It works by injecting a tiny slurry of sediment wrapped around the seagrass seed into the seafloor. After covering a growing plot of four seeds, the robot ‘hops’ about 30 centimeters away and starts again.

Despite covering a minuscule portion of the seafloor, seagrass meadows are estimated to hold 35-times more carbon than terrestrial forests—amounting to around 18% of the total carbon stock of the world’s oceans.

ReefGen’s founder Tom Chi dreamed up the idea after watching the degradation of coral reefs on his home island in Hawaii. The first iteration of the robot set coral ‘plugs’ onto existing reefs to help regrow them, but the technology was prohibitively expensive for wide-scale use.

Now however, broader selections of off-the-shelf parts have driven down the costs of manufacturing and maintaining underwater robots, according to Chris Oakes, CEO of ReefGen.

“Manual planting works, but robots are really good when things are dull, dirty, dangerous, or distant—the four Ds,” Oakes told CNN, adding that at the moment, Grasshopper is piloted with a controller by a human on the surface.

“Right now, we’re focused on the planting, the biology, and the mechanical aspects, once we’re confident that that’s all designed the right way, we will overlay more semi-autonomous features like navigation, so you don’t actually have to pilot it,” he said.

ReefGen has been able to not only expand into restoration of seagrass meadows, but also see its robots used in oceans around the world. This July, Grasshopper planted 25,000 seeds in Wales. In October, ReefGen teamed up with the University of North Carolina (UNC) Institute of Marine Sciences to test various seed replanting methods out on the state’s declining seagrass meadows.

Oakes says that as cool and “flashy” as a robotic solution might seem, the most important factor in its success will be the long-term monitoring of the fields it’s replanting. Are they growing to maturity, are the seedlings dying off before then, will they live long enough to seed and germinate fields of their own, how do fields it plants compare to fields planted by hand??"

-via Good News Network, December 24, 2024

[protectoursharks]

Got any cool info on cow sharks?

YES

There are five species of cowshark: Broadnose sevengill, Bluntnose sixgill, Sharpnose sevengill, Bigeyed sixgill, and the Atlantic sixgill.

My favorite fact about these adorable little sharks is that they have more gills than most sharks do (which is why its mentioned in their name). Most sharks have five gill slits! They also don't have the notably large dorsal fin synonymous with sharks.

These sharks have even been observed to hunt in packs for larger prey like seals and other sharks! They're commonly found in shallow, warm waters.

[typhlonectes]

Ocean heat killed half of population of Alaskan bird species

In what is considered the largest documented wildlife mortality event in the modern era, a heating ocean wiped out half of Alaska’s common murre seabird population, a new study found. Scientists have noticed an increase in marine heatwaves, which are periods of warmer-than-usual ocean waters. A study published in the journal “Science” on Thursday assesses how marine heatwaves have impacted wildlife. Researchers found a loss of four million common murres in Alaska during a heatwave period between 2014 and 2016...

Read more:

[mindblowingscience]

A group of scientists warned Monday of the greatly underestimated risk of a collapse of ocean currents in the Atlantic which could have catastrophic consequences for the Nordic countries as the region's leaders gathered in Iceland. In an open letter addressed to the Nordic Council, which is meeting this week in Iceland's capital Reykjavik, the scientists said they wanted to bring attention "to the serious risk of a major ocean circulation change in the Atlantic."

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