None Like It Hot

What if we told you that a group of gelatinous animals helps control the planet’s climate? Your disbelief would be salp-able! 

Salps are filter-feeding gelata related to pyrosomes that pack up plankton produce into poo pellets that precipitate into the deep, capturing carbon from the atmosphere and tucking it away in the depths of the hydrosphere.

Thanks to local photographers Michelle Manson and Joe Platko for the salp selfies! Joe’s photo on top shows a solitary Pegea confoederata ready to birth the same kind of long chain that Michelle found in her lower photo! 

(The pink orbs are the salps’ guts, and these tubular animals are essentially a passing pasta strainer for plankton!)

As it is Halloween here’s a still unsolved natural mystery.

Located in Judge C.R. Magney State Park, Minnesota, there is an unsolved geological mystery nicknamed The Devil’s Kettle. Mid way along the Brule River that runs through the Park the river splits in two to go around an outcrop of rhyolite. Here’s where it gets interesting, the split flows produce 2 waterfalls along side each other. The eastern flow drops around 15m (50ft) into a pool and continues off down stream. The western flow however drops 3m (10ft) into a pothole disappearing underground.

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But without primary producers (phytoplankton) there would be no krill

They’re krilly small and unassuming, but krill form the backbone of many ocean ecosystems! 

These tiny crustaceans consume phytoplankton, and in turn are food for whales, fish, and other marine animals. During their peak feeding times, blue whales can eat up to 8,000 pounds of krill each day! 

(Photo: Maps For Good, taken in Greater Farallones National Marine Sanctuary)

Dinoflagellates! These bizarre microorganisms are found all over the ocean, and occasionally freshwater lakes and ponds. Some are photosynthetic, some are predators, some are both! They are also the plankton responsible for toxic red tides. 

The first two pictures show Pyrocystis dinoflagellates.  These are closely related to the dinoflagellates that bioluminesce a bright blue along coastal waters. In the top picture, you can see a cell dividing its nucleus into two, as well as some sort of protective cyst in the lower right corner.

The 3rd picture is a bloom of Gymnodinium dinoflagellates, and the last picture is a close-up. See the nucleus?

More neat facts: some dinoflagellates have 215 billion base pairs in their genome. For comparison, the human genome is made up of about 3 billion base pairs! No one really knows why they have so much DNA, most of which is heavily modified and wrapped with re-purposed virus proteins. 

Shark Week Takeover with photos by @BrianSkerry ! • • • Like a living wreath, small fish encircle the head of a whale shark cruising through coastal waters off Mexico’s Isla Holbox. The small fish have little to fear from this shark, since whale sharks are filter feeders, eating mainly plankton and fish eggs. Whale sharks are currently listed as ‘vulnerable’ due to human pollution and hunting, and populations remain unstable due to the slow reproductive habits of these magnificent creatures.

Swimming with whale sharks is one of my favorite experiences in the sea. Their massive size and gentle nature make for exhilarating encounters. • • • To see more shark photos and other ocean wildlife follow @BrianSkerry And keep following our feed all week to keep up with Brian Skerry’s very sharky takeover! #takeover #sharks #sharkweek #sharkweek2018 #allsharksallthetime #newenglandaquarium

Silence and calmness can be extremely moving. #Whale #MexicoPelagico #PelagicLife #ocean #nature #whale #underwater #mexico Photo by @rodrigofriscione

The Great Escape!

One of the biggest threats to sea turtles, such as the loggerhead turtle (Caretta caretta) pictured here, is being accidentally caught and killed in fishing nets. Trapped in a net, the turtles are dragged through the water with no access to the surface to breathe, causing them to drown.

To address this problem, NOAA Fisheries worked with the shrimp trawling industry to install escape hatches into their nets called Turtle Excluder Devices, or TEDs. A crosshatch of bars in the middle of the net create a grid large enough for small shrimp to pass through, but not turtles and other large animals. When they hit the grid, they can then swim out through a hole in the net and escape.

Before TEDs were installed, an estimated 70 to 80 percent of turtle strandings on beaches were caused by shrimp nets. But since they were installed by U.S. shrimpers in the Gulf of Mexico in the late 1980s, strandings caused by shrimp nets are estimated to be down by at least 44 percent.

Photo: NOAA

One Month

One month down

Cultural differences

Language barrier

On Friday, my first month in Costa Rica ended and marked the beginning of my second month here. Over the course of this month, I have noticed a lot of differences between Costa Rican culture and U.S. culture, although there are probably more that I have not noticed because I have not thought about them. Personal space and your personal bubble do not exist in the way they do in the U.S. It is common to hug and kiss people on the cheek as a sign of greeting and farewell, which as someone who likes their personal bubble, is taking a bit of time to get used to. It is very common for men to catcall, whistle, honk their horns, and stare at women walking, although every time that I have seen it, that's all it was. It makes me think that instead of men just lacking in all forms of self control, it is more of a cultural norm to do it and it would be out of place for men not to do it. Although, it still makes my female friends from the U.S. very uncomfortable for obvious reasons. Rules of the road really just seem like suggestions and it seems that drivers make up their own rules as they go, including motorcycles and scooters that always pass cars, buses, trucks, SUVs, etc... when they shouldn't. Most classes at the university are only once a week and there is a lot less busy work and a lot more group work. It is acceptable for people to show up late for classes and events (tico time), however, it does not apply to my science classes.

By far, my biggest struggle has been the language barrier. Looking back at a month ago, I can tell that there has been at least a subtle increase in my proficiency with Spanish. I try to listen and follow my professors, my parents, and other people that I encounter, but at times I can't understand what they are saying, although my listening skills are still a lot better than my speaking skills. I try to talk as much as possible but my problems are when I don't a word I need and cannot get around (although today I had a conversation about my opinion genetic modification with classmates for fun and it went really well) and if I don't have anything to say, I usually don't say anything. To mediate this, I've tried to force myself to talk more with mixed success. But I have learned that even if I understand 95% of what everyone says, the only way my speaking will improve is if I speak as much as I possibly can, knowing that I will make a lot of mistakes in the beginning.

Changing main blog now. Everything before this is my study abroad experience in Costa Rica

Anyone else love squids as much as we do? (Qeue slow-motion tentacle-raise) 🙋🏻

Galiteuthis phyllura, also known as the cockatoo squid, lives in the North Pacific from 200 to over 1,000 meters (660 to 3,280 feet) deep. This species has a transparent body and photophores, or light organs, under their eyes. We often encounter them hanging horizontally in the water column with their arms raised above their heads.