Horseshoe crab craft template

Last year I was pretty proud of my sea & sky pumpkin featuring constellations, a sunset, fish, a seahorse, and horseshoe crabs and I’m at a loss on what to do this year. I started a template for a much larger horseshoe crab so I thought I would share it with you (HSC_template).

I actually cut out and created some artwork for my office.

10 best in the past nine years

Sometimes it’s nice to look at the past and see what’s worked. From the past nine years of posts on Beach Chair Scientist, it seems that one post has been the “most valuable player”. 100 ocean quotes is a surefire “make you stop by BCS for the first time and join the mailing list” kinda post. It’s the Wayne Gretzky, Babe Ruth, or Micheal Jordan in terms of stats. All other posts just fall short. But in the ethos of sportsmanship, here are ten posts that also bring some well deserved worth to this little blog. Which one are you rooting for?

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My awesome, overprotective mom and horseshoe crabs

limuluslove_beachchairscientistwebNo joke. I like horseshoe crabs, but not more than my family. Especially my mom. Let me tell you a story about how incredible she was one particular evening in early June. It was probably about 2002 and I was a seasonal employee for the NJ Division of Fish and Wildlife. The job was awesome in every sense. Except the hours … either really early for tagging stripers along the Delaware Bay or really late to survey HORSESHOE CRABS!

In case you haven’t heard watching the horseshoe crabs come up to the wrackline to spawn is an incredible experience (check out my post on the short and sweet of horseshoe crab spawning here). You might see some Limulus polyphemus the nights near a full moon or new moon right as the sun is going down. But, it’s not until the tide is at its highest point that the ancient fossils really come out of their hiding spots. 2.IMGP1651-Photograph-James-Bulley-1024x680My co-workers and I went about as normal for this event and used the  quadrat to estimate the amount of females and males every six steps (the females are much bigger!). We’d log the numbers on a clipboard. After the length of the beach that was our responsibility we’d head home. It was about 2am one particular morning when we finally made it back to the van. I also worked as a waitress in the summer so it had been a long day. The data sheet was my responsibility. It blew away. It’s really windy by the sea usually!

We didn’t fudge any numbers. I went back the next night … but, not alone. My amazing, overprotective mom came with me. After all, I had to drive about an hour to a small town along the Delaware Bay in the middle of the night. It was going above and beyond. I mean, she’s not a nature-type so this was in pure mama bear mode that she made the trek with me. It was incredible … my mom was totally amazed by the phenomenon too. One minute there were about fifteen horseshoe crabs and the next hour as soon as high tide occurred they were covering the beach! That night I was able to share my love of teaching and horseshoe crabs with someone I loved. She exuded such enthusiasm that I have no doubt it’s one reason I keep this blog and it’s focus of all things horseshoe crabs going. She might have been pulling my arm and thought the whole experience was really gross and icky, but parents know how to let their kids shine and that’s just fine with me.

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NOAA’S Ocean Today provides a great view of the field experience, too. Yes, I did wear a headlamp like those citizen scientists.

What citizen science projects have you participated in lately? Check out what’s going one here.

Christmas critter countdown: Decorator crab

The decorator crab will hold a piece of decoration against it shell until it begins to grow there! Find out what’s used as a decoration here.

Christmas critter countdown

Facts about ‘Finding Dory’ friends

Maybe it’s because I’m a full-time teacher now, but my favorite character in Finding Dory is the Sting Ray. I mean, if it wasn’t for the class trip to learn about migration Dory – the blue tang with short-term memory loss –  may never had thought about “going home” and the trek to look for her parents may never have happened. She is supported on the journey with Marlin and Nemo – a class act father and son clown anemonefish duo. However, they meet some other amazing new creatures and reconnect with some old friends. Here are some of my favorite facts to share about Hank the Octopus, Destiny the Whale Shark, Bailey the Beluga, Crush the Green Sea Turtle, and – of course, the Sting Ray Teacher!

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What are your thoughts on the Finding Dory film? Did anyone catch that Dory should now have been able to speak “whale” because of her friendship with Destiny – given Destiny is actually a fish and not a whale?

20 reasons oysters are awesome

O-Y-S-T-E-R! Happy National Oyster Day! There needs to be much love for the oyster. These creatures are delicious, sustainable, and help the environment. Maybe we need more than just one day to celebrate this bivalve? If you don’t believe me, here are over 20 reasons oysters are awesome:

  1. Oysters spawn during the summer months and therefore tend not to be as tasty. This is the epitome of the old wives’ tale on why “you shouldn’t eat oysters in months that don’t end in ‘R’.”
  2. Another reason this adage has prevailed is that oysters are much better when cold and do not taste that good when in the heat.
  3. Oysters can change their sex. They can produce both semen and eggs.
  4. Oysters have been known to live up to twenty years in captivity.
  5. When oyster larvae attach to a hard material, a vital part of their life cycle, they’re called “spat.” Two to three years later they are considered adults.
  6. The habitat of the Eastern American oyster (Crassostrea virginica) extend from Canada to Argentina.
  7. Even though there are countless (and delicious) varieties of oysters there are only five species. These species are the Pacific oyster (Crassostrea gigas), Kumamoto oyster, European flat oyster, American (i.e., Eastern) oyster, and the Olympia oyster. The shells of the five species are truly what sets these species apart (other than the geographic region they are most often found). The American is pretty familiar with its large size and comma shaped shell. The Olympians have a small, round, pale shell with lustrous coloring. The Kumamotos have a round, pale shell as well but not as much of a smooth shell. The European flat has fine ridges around its large, straight shell, and the Pacific are small with wavy shells. In fact, the same type of oyster can taste different contingent on where it was raised.IMG_7313
  8. Sometimes a bacteria that commonly grows along coastal environments where oysters are found known as Vibrio vulnificus can infect the oysters. This would leave to that “bad oyster” that might make you sick.
  9. One very common misunderstanding of the oyster is that they are an aphrodisiac. However, it’s really just their significant amount of zinc. Zinc is a mineral that will boost your energy and therefore can boost your sex drive. Other benefits of zinc are that skin will improve and make your bones stronger.
  10. Oysters also have immense amounts of omega-3-fatty acids which can sharpen your memory, lower levels of depression and heart disease, as well as a host of other benefits.
  11. Oysters also have lots of vitamin A, C, D and B-12.
  12. Even though Boticelli’s “The Birth of Venus” has Aphrodite rising from the sea on a scallop shell legend has it that the Goddess of Love, Aphrodite, emerged from the sea in an oyster shell.
  13. In the 17th century, New York City was covered in oyster beds and were very much enjoyed by the native Lenape Indians. Eventually, by the 19th century, the oysters were so plentiful that raw oysters could be purchased from the street vendors. There was even oyster saloons with all sorts of methods for consuming oysters.
  14. Most pearls found in jewelry are from clams and mussels – not oysters. Although, there are also actual pearl oysters which are from a different family of bivalves.
  15. Oyster mushrooms and black salsify, also called “vegetable oyster”, actually taste like oysters.
  16. Oysters are a crucial member to the aquatic communities. Not only do they gobble up lots of algae (think of your back bay becoming a dirty fish tank without them), but they are crucial as natural filter feeders. Oysters filter approximately 30 to 50 gallons of water a day removing excess nutrients and allowing shrimp, clams, crabs, and snails to flourish. The cleaner water also enables more seagrass to grow creating more habitat for fish.
  17. Oysters grow on top of one another as an oyster reef. These huge substrates are imperative for soil erosion and shoreline stabilization.Oyster_human_impact_diagram_SM_noaa
  18. If you bring home oysters for your next bake be sure to recycle the shells close to home. The shells of the oysters are extremely rich in calcium and can help balance the pH of the soil as well as add nutrients to your garden. Fertilizer fresh from the sea!
  19. Oyster farms, unlike other types of fish farming, can greatly enhance the health of nearby waterways. Not only do they tend to munch on pollution (yes, they’ve been known to help out Big Oil), but if the oyster were to escape it isn’t in danger of becoming an exotic species.
  20. While it’s all well and good that farmed oysters can do a lot to help water quality … natural oysters reefs are just as vital. Unfortunately, 85% of the global oyster reef population has been lost.
  21. In the Chesapeake Bay an estimated 2,600 acres of oyster beds are lost each year because of runoff and silt. On the Pacific coast invasive crabs and snails are destroying natural oyster beds.
  22. Not only are oyster reefs vanishing, but the ones that remain are just not as strong due to ocean acidification (i.e., climate change for the sea).
  23. There are many organizations along the Atlantic coast that are looking for volunteers to help adopt and raise oysters. If you don’t live on the water volunteers are still urged to build oyster reef substrates or oysters mats.

Resources: Food Republic, NOAA – Cheasapeake Bay Office, Organic Life, Oyster Recovery Partnership.

15 facts about the Portuguese man-of-war that’ll have you saying “Didya know…?”

I won’t say it has anything to do with us … oh, wait … yes, I will. The ocean is getting warmer because of climate change. One effect of this would be that many animals that pretty much only preferred the luxurious tropical waters of the south Atlantic now find the Mid-Atlantic waters great! Oh, fun. Except in the case of the man-of-war this summer. That’s got a lot of folks sketched out and seems to be putting a damper on beach days. Well, at least there’s the opportunity to learn something new … because that’s what summer’s all about, right? Here is a list of fifteen surprising facts about the man-of-war (Number twelve is shockingly cool!):

  1. The man-of-war is not a jellyfish. They’re a siphonophore, a single animal made of a colonial of organisms working together (e.g., coral colony).
  2. The man-of-war is made up of four polyps. The top one is a brilliantly purple, blue, or pink gas-filled float. When the top polyp (i.e., “sail”) is filled with gas it looks like the 18th century Portuguese war ship at full mast.
  3. The top polyp is like an umbrella for the others polyps that are bunched under it. One is made up tentacles full of stinging cells (i.e., nematocysts). They’re used to catch prey such as smaller fish, plankton, and crustaceans.
  4. The tentacles with the stinging cells can get to be 165 feet (that’s longer than a blue whale!) long, but are more on average about 50 feet.
  5. Man-of-war are asexual. That’s right … not a man or a woman! One polyp is responsible for all that action. If you’re counting, that’s three of the four polyps. Can you guess what the fourth is responsible for? Digestion.
  6. The gas that the man-of-war is filled with is Argon. That’s number 18 on the atomic table.
  7. The man-of-war (or, man-o-war) is also sometimes called the bluebottle.
  8. People have died from trying to swim into shore after getting stung by them. However, the sting itself will most likely not kill a human.
  9. Man-of-war that have washed up to shore can still sting you. I was stung by one in Florida. While it was incredibly painful at the time, I lived to tell about it. Here is a “How Not to Get Stung” list.
  10. Man-of-war tend to travel together (up to 1000!) and drift in the wind or current (Note: They do not swim and therefore do not migrate). However, they’ll deflate if there is a threat at the surface of the sea.
  11. The eight centimeter fish Nomeus gronovii is immune to the man-of-war’s stinging cells and lives among its tentacles.
  12. The blanket octopus is also immune to them and not only eats them but also reuses the tentacles to help in hunting other animals. Check out a video of that action here.
  13. The fossil records for the man-of-war go back 600 million years.
  14. South Florida-based fine art photographer Aaron Ansarov was featured in National Geographic for his beautiful images of the man-of-war. Check them out … I am still speechless!
  15. There is a Man-O-War Cay in the Abaco Islands of the Bahamas. I’ve been to nearby Guana Cay several times, so I am quite grateful that over at Rolling Harbour the beautiful place has been described just as I remember.

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Psst … Can someone help me out with the plural of man-of-war? Is it men-of-war or man-of-wars?

Squid’s “Passing Cloud” camouflage technique mimicked in artificial skin

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Cuttlefish illustrating the “Passing Cloud” pattern. Image (c) “Hiding the Squid! Official”.

Are we one step closer to an invisibility cloak?

Researchers at the University of Bristol have demonstrated how to create artificial skin that can mimic the squid. The squid, as well as other cephalopods like the octopus and cuttlefish, can blend into their surroundings to hide from predators or sneak up on prey.  The squid’s “Passing Cloud” camouflage technique (i.e.,  bands of color spread as waves across the skin) was simulated in the experiment. According to the researchers the implications are more than just avoiding your landlord, they noted that “It could also be used for signaling purposes, for example search and rescue operations when people who are in danger need to stand out”. More patterns are being studied in the future as well.

What’s it like to be a Maine lobsterman?

Are your kids interested in a career on the water? Sounds like a great time to check out this video and go out lobster fishing with the award winning Aqua Kids! They’ll learn from teen lobster fishermen in Maine some of the challenges of the job (e.g., timing how long their nets are in the water, regulating the size of “catchable” lobsters). But, most impressively what is on the young lobstermen’s mind is how to make sure their practices are sustainable.

Aqua Kids motivates today’s youth to take an active role in protecting and preserving our marine environments.

 

Wordless Wednesday | Limulus Love

 

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