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What I know:
• There is 100+ species of plants and animals in the ocean
• There is a lot of pollution in the water
• Sharks don't attack humans on purpose

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What I wonder:
• Is there another kind of dolphin
• Can Sharks live in hot water
• Can you be speared by a spearfish?

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What do underwater volcanoes look like on the inside?

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Noah

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- Hayley

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Sea anemones are related to jellyfish.

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sea animals need to stop being hunted for food and blubber.
A lot of things in the ocean that you think is just plant are living things SO cool!!
A lot of animals are getting caught or hurt because of littering and polution.

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Naomi what keeps sucking fish on things. Is it safe to swim with big sharks and whales? How do I keep a shark from eating me if i am close?

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Naomi what keeps sucking fish on things. Is it safe to swim with big sharks and whales? How do I keep a shark from eating me if i am close?

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I have minded my own business while swimming and that seems to work with my local sharks. AR

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I think it's amazing how well octopus can camoflauge

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Some sea life that look like an eel may not be, but they are just a type of fish.

Sea anemones try to paralyze humans with a needle, but our skin is too thick. They can paralyze fish.

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I wonder  if a octopus  could camouflage onto other sea life like a shark?

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Barnacles catch food by waving their feet around in the water and catching plankton.  Then they pull their feet back into their shell and eat the food.  They do this when they are underwater.  When they are above water they keep their feet in their shell. 

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Barnacles catch food by waving their feet around in the water and catching plankton.  Then they pull their feet back into their shell and eat the food.  They do this when they are underwater.  When they are above water they keep their feet in their shell. 

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-Hayley

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I learned that octopuses change colors. Also that barnacles stick to rocks. And sea anemones stick to your body.

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This is a cool way to connect art and science. Draw the anatomy of a creature. This one is from Maya; she is in middle school now, but she went on field trips with the Marine Science Institute just like you!

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This is a cool way to connect art and science. Draw the anatomy of a creature. This one is from Maya; she is in middle school now, but she went on field trips with the Marine Science Institute just like you!

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I was jumping between the two rooms. Here is what I jotted down while I did tech support.

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I was jumping between the two rooms. Here is what I jotted down while I did tech support.

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I do not normally use a marker. Markers are easier to read with this posting system.

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I do not normally use a marker. Markers are easier to read with this posting system.

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When I swim in Belize, the fish I am most worried about is a Barracuda. They swim up in a gang and give me weird looks. (Technically, the group is called a school of fish.)  I always hold my breath when this happens. So far, they have only looked at me hard and stared for a bit.

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When I swim in Belize, the fish I am most worried about is a Barracuda. They swim up in a gang and give me weird looks. (Technically, the group is called a school of fish.)  I always hold my breath when this happens. So far, they have only looked at me hard and stared for a bit.

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A barracuda is a large, predatory ray-finned fish known for its fearsome appearance and ferocious behaviour. The barracuda is a saltwater fish of the genus Sphyraena, the only genus in the family Sphyraenidae which was named by Constantine Samuel Rafinesque in 1815. It is found in tropical and subtropical oceans worldwide ranging from the eastern border of the Atlantic Ocean to the Red Sea, on its western border the Caribbean Sea, and in tropical areas of the Pacific Ocean. Barracudas reside near the top of the water and near coral reefs and sea grasses. Barracudas are targeted by sport-fishing enthusiasts.

Barracuda are snake-like in appearance, with prominent, sharp-edged, fang-like teeth, much like piranha, all of different sizes, set in sockets of their large jaws. They have large, pointed heads with an underbite in many species. Their gill covers have no spines and are covered with small scales. Their two dorsal fins are widely separated, with the anterior fin having five spines, and the posterior fin having one spine and 9 soft rays. The posterior dorsal fin is similar in size to the anal fin and is situated above it. The lateral line is prominent and extends straight from head to tail. The spinous dorsal fin is placed above the pelvic fins and is normally retracted in a groove. The caudal fin is moderately forked with its posterior edged double-curved and is set at the end of a stout peduncle. The pectoral fins are placed low on the sides. Its swim bladder is large. Speedy and dynamic, they are slim, with small scales. Barracudas also have two well-separated dorsal fins, a protruding lower jaw, and a large mouth with many large, sharp teeth.

In most cases, a barracuda is dark gray, dark green, white, or blue on its upper body, with silvery sides and a chalky-white belly. Coloration varies somewhat between species. For some species, irregular and unorganized black spots or a row of darker cross-bars occur on each side. Their fins may be yellowish or dusky. Barracudas live primarily in oceans, but certain species, such as the great barracuda, live in brackish water.

Some species grow quite large (up to 65 inches or 165 cm in length), such as Sphyraena sphyraena, found in the Mediterranean Sea and eastern Atlantic; Sphyraena picudilla, ranging on the Atlantic coast of tropical America from North Carolina to Brazil and reaching Bermuda. Other barracuda species are found around the world. Examples are Sphyraena argentea, found from Puget Sound southwards to Cabo San Lucas, Sphyraena jello, from the seas of India and the Malay Peninsula and Archipelago.

28 species in this genus are recognized:

Barracudas are ferocious, opportunistic predators, relying on surprise and short bursts of speed, up to 27 mph (43 km/h), to overtake their prey.

Adults of most species are more or less solitary, while young and half-grown fish frequently congregate. Barracudas prey primarily on fish (which may include some as large as themselves). They kill and consume larger prey by tearing chunks of flesh. Barracuda are competitive species and often are seen competing against mackerel, needle fish and sometimes even dolphins for prey.

Barracuda feed on an array of prey including fish such as jacks, grunts, groupers, snappers, small tunas, mullets, killifishes, herrings, and anchovies by simply biting them in half. They also seem to consume smaller species of sustenance that are in front of them.

Barracudas are usually found swimming in saltwater searching for schools of plankton-feeding fish. Their silver and elongated bodies make them difficult for prey to detect, and even more difficult to be seen when viewing them head-on. Barracudas depend heavily on their eyesight when they are out hunting. When hunting, they tend to notice everything that has an unusual color, reflection, or movement. Once a barracuda targets an intended victim, its long tail and matching anal and dorsal fins enable it to move with swift bursts of speed to attack its prey before it can escape. Barracudas generally attack schools of fish, speeding at them head first and biting at them with their jaws. When barracudas age, they tend to swim alone. However, there are times where they tend to stay with the pack. Barracudas will sometimes swim in groups. In this case, they can relocate schools of fish into compact areas or lead them into shallow water to more easily feed on them.

Interactions with humans

Like sharks, some species of barracuda are reputed to be dangerous to swimmers. Barracudas are scavengers, and may mistake snorkellers for large predators, following them hoping to eat the remains of their prey. Swimmers have reported being bitten by barracudas, but such incidents are rare and possibly caused by poor visibility. Large barracudas can be encountered in muddy shallows on rare occasion. Barracudas may mistake things that glint and shine for prey. One incident reported a barracuda jumping out of water and injuring a kayaker, but Jason Schratwieser, conservation director of the International Game Fish Association, said that the wound could have been caused by a houndfish.

Handfeeding or touching large barracudas in general is to be avoided.[according to whom? ] Spearfishing around barracudas can also be dangerous, as they may be attracted to the injured animals and attempt to eat them.[citation needed ]

Barracudas are popular both as food and game fish. They are most often eaten as fillets or steaks. Larger species, such as the great barracuda, have been implicated in cases of ciguatera food poisoning. Those who have been diagnosed with this type of food poisoning display symptoms of gastrointestinal discomfort, limb weakness, and an inability to differentiate hot from cold effectively.

West Africans smoke them for use in soups and sauces. Smoking protects the soft flesh from disintegrating in the broth and gives it a smoky flavour.

The barracuda prominently appeared in the 2003 Disney/ Pixar animated film Finding Nemo, in the beginning of the film. Before the main titles in the film and in the 3D release, the barracuda closes its teeth and the bottom lip is shown in the film.

The barracuda also appeared as an easter egg in the 2019 Disney/Pixar animated film . It was stuffed and mounted in display in the Second Chances antique store.

Barracuda is the title of a 1977 hit song by the band Heart.

The Arrokuda and its evolution Barraskewda (both introduced to the franchise in Pokémon Sword and Shield) are based on the barracuda.

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A barracuda is a large, predatory ray-finned fish known for its fearsome appearance and ferocious behaviour. The barracuda is a saltwater fish of the genus Sphyraena , the only genus in the family Sphyraenidae which was named by Constantine Samuel Rafinesque in 1815.

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we don't get stung by sea anemones

Maybe this can be a question we think about?

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Siddharth

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Siddharth

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Simon, if you don't write much, you can make up for it with an audio recording. Just share what you learned.AR

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I wonder if all sea stars feels the same? It looks like it feels slimy. I remember going to Sea World and touching one with my brother, I remember it feeling bumpy and smooth at the same time.

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zofia

I think you should use a bigger notebook for these classes. There will be a lot of information in each class. AR

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I never knew that sea anatomy are related to jellyfish

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This is a Hunterfish. Their fins are brakes and they can also go 101 mph.

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i was sketching during the field trip- ruby

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i was sketching during the field trip- ruby

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Max

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 Max   Littering is killing a lot of sea animals

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 Max   Littering is killing a lot of sea animals

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This is the picture I will be going off of

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Did you know that the tusk of the sea unicorn narwhal is actually a tooth? Check out this awesome new comic from Squidtoons to learn more!

Copyright © 2016 by Marine Science Today, a publication of Marine Science Today LLC.

About the Author

About the Author: Emily Tripp is the Publisher and Editor of MarineScienceToday.com. She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science and a Master of Advanced Studies degree in Marine Biodiversity and Conservation from Scripps Institution of Oceanography. When she's not writing about marine science, she's probably running around outside or playing with her dog. More from this author.

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Did you know that the tusk of the sea unicorn narwhal is actually a tooth? Check out this awesome new comic from Squidtoons to learn more! Copyright © 2016 by Marine Science Today, a publication of Marine Science Today LLC. About the Author: Emily Tripp is the Publisher and Editor of MarineScienceToday.com.

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Discover the symbiotic relationship between these beautiful, venomous animals and the clownfish that often dwell within their tentacles.

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Our Mission - Through education, research and rescue, Dolphin Research Center promotes peaceful coexistence, cooperation and communication between marine mammals, humans and the environment we share with the well being of DRC's animals taking precedence.

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Dolphin Anatomy - Dolphin Research Center

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Our Mission - Through education, research and rescue, Dolphin Research Center promotes peaceful coexistence, cooperation and communication between marine mammals, humans and the environment we share with the well being of DRC's animals taking precedence.

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plakte

?AR

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otis-the wonderful world of life in a drop of water

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otis-the wonderful world of life in a drop of water

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I think it's amazing that the man in the video is an inventor and made a 3d microscope.

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Max    What would happen if megalodons didn't go extinct?

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Max    What would happen if megalodons didn't go extinct?

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Notes while watching plankton video on 9/17/20

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Plankton provide 2/3 of the oxygen in the world.

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Plankton provide 2/3 of the oxygen in the world.

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-Hayley

Source? AR

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Fun fact - Octopi have suction cups on their tentacles.
-Hayley

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some animals have no back bone

Source? AR

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the mud grab is a linkage

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zofia

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spider crab

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I learned about the continental shelves.I learned that its sallow for a long time than there's a big dip and most of the sea animals live somewhere in the sallow part

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I learned about the continental shelves.I learned that its sallow for a long time than there's a big dip and most of the sea animals live somewhere in the sallow part

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-ruby

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naomi

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Naomi

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It was fun to learn how to tell a male crab from a female crab. I learned that fish actually do have a backbone and are not invertebrates.

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We learned about tides mussels, and Golden Gate Bridge. We learned about peterson mud, grabber, a inverterbrate is something without a backbone. There is a animal called a spider crab that can camoflage.

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Plankton uses the sun to produce the oxygen we need. I wonder if somebody went down into the ocean, where the sunlight does not reach, would you find plankton? If so that would prove the guy in the plankton video to be wrong. He said if you go to the very bottom of the ocean where you can feel sand you will not find plankton.

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I  cannot read the notes. Please make sure we can see them in the photo.  Good try! AR

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I drew this fish that I saw on the zoom. (sorry if it looks sloppy.But I tried my best to make it look good)hope you like it.

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-Hayley