Just a word on this answer: "Please find attached the requested pictures and information, for your reference. Please let me know if anything else is needed/required." I believe the word attached is a little bit odd. Try something like this: Attached are the requested pictures and.....for your reference.

Understanding the Context

I'm thinking of the following: info-packed / information-packed knowledge-packed I guess these are grammatically acceptable but probably there are better choices. Nasdaq: CSS Profile: What You Need to Know About Filling Out the College Financial Aid Form CSS Profile: What You Need to Know About Filling Out the College Financial Aid Form All the dictionaries I have say that the word "information" is usually used in combination with "on" or "about". However, when I Googled with the phrase "information of", there were a lot of hits. ...

Key Insights

Normally you'd say "important information" or "urgent information", but the of form is a well-accepted formal phrasing. You might try to use it to indicate owner of the information, but that's really awkward. "The disk contains information of Sony on their newest mp3 player" - but I don't think you'd ever encounter it in real life. Which is grammatically correct? A visit was made to local supermarket to observe and collect information for/on/about the fat contents of vegetable spread and butter available in the store.

Final Thoughts

I thought information is singular and plural. But now I'm not sure which version is right: The dialogue shows two important informations. OR The dialogue shows two important information. Which ... The information refers to a specific set of information; that which the speaker obtains from fish. The oceans refers to the oceans of the world.

Fish refers to fish in general.