Totally Terrific Tuna

By: Alexa Rabizadeh

Introduction

Did you know that a single bluefin or yellowfin tuna can be sold in Asia for 1.75 million dollars? This favored fish has an amazing habitat, interesting diet, and a blue color that blends to the ocean floor.

Closing

In conclusion tuna have marvelous habitat, a fascinating diet, and a breathtaking appearance. There is a big difference between the bluefin and yellowfin tuna and the tuna you had in your sandwich last night. Yellowfin and bluefin tuna is very expensive, but the tuna is not a lot of money is called albacore tuna. That is canned tuna. The tuna is a thrilling fish to learn about.


Think Tank

This quiz is to test your knowledge about tuna.

Another Think Tank

These are just a few words that describe a tuna.
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Fun Fact

Did you know that a female tuna lays 30 million eggs. Only 2 of those 30 million survive. The rest are eaten.

Go fish

In the “go fish” activity I created an aquarium. It consisted of decorations, gravel, filter, etc… I put several varieties of rocks/gems,plants, background, and a big Eiffel Tower, because Paris is my theme. Also I got fish.. The fish I got were Red Female Veiltail betta. I got 1 of those and it cost 5.26. Then I got the Neon Tetra, I got 2 of them and it was 3.18. I also got the male Halfmoon Betta. I got 1 of those and it was 1.99. Then I got a Australian Rainbow fish. I got 3 of those. It was 7.47. Lastly I got a snail to eat the dirty things away. I had $40.73 left over.

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My Diorama

This is my diorama with a lot of animals in the coral reef including the tuna
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Extra

This is a video of a tuna eating in its habitat
Feeding Bluefin Tuna in HD

Facts From Soft Schools

Interesting Tuna Facts:

Tuna is a large fish. It can reach length of 6.5 feet and weight of up to 550 pounds.

Largest (ever recorded) specimen of tuna was 21 feet long, weighing 1600 pounds.

Color of the body provides excellent camouflage in the water. Dorsal (back) side of tuna's body is dark blue and it blends with the ocean floor when observed from the air. Belly of tuna is silver-white and it blends with the surface of the ocean when observed from bellow.

Despite their large size, tunas are very fast swimmers. They can reach the speed between 44 and 62 miles per hour.

Tuna is able to change the position of its dorsal and pectoral fins to reduce drag and accelerate the swimming speed.

Tuna can swim near the surface or can dive to the depth of 3000 feet while it searches for food.

Tuna is a carnivore. It feeds on different types of fish (mackerel, herring, hake…), squids and crustaceans.

Unlike other fish, tuna is able to increase and maintain the body temperature few degrees above the temperature of surrounding water. Because of this feature, tuna can be classified as "warm-blooded" animal.

Tuna has unique network of small arteries and veins near the muscles called "rete mirabile" which facilitates warming of the blood. Warmed blood is essential for fast and strong swimming.

Tuna breathes oxygen from the water and because of that it needs to swim constantly.

Tunas can travel large distances in a short period of time. It can pass across entire Atlantic in 30 days by traveling 16 miles per hours

Besides humans, natural predators of tunas are orcas and sharks.

Mating season of tunas depends on their geographic location. Tunas in Gulf of Mexico mate from middle of April to middle of June. In Adriatic and Mediterranean Sea, mating takes place from June to August.