Translation of "Seaweed" in Japanese

Without sunlight, seaweed stops producing oxygen.

‎日光がないと ‎海藻は酸素を作れない

Would give me hijiki seaweed for lunch.

ヒジキを用意してくれたり

Our cat is very fond of seaweed.

うちの猫は大変海苔が好きである。

Do you eat seaweed in your country?

あなたの国では海草を食べますか。

- This is the first time I've had seaweed.
- This is the first time that I've had seaweed.

海草を食べたのは初めてです。

This is the first time I've had seaweed.

海草を食べたのは初めてです。

I've eaten a lot of seaweed over the years,

海藻はたくさん食べてきた

And seaweed like this, has loads of nutrients in it.

こういう海藻は栄養が豊富だ