Explanation:

- Option 1: Mariculture is indeed a specialized branch of Aquaculture. It specifically involves the cultivation of marine organisms in their natural marine environment or in specially constructed rearing facilities like sea cages or tanks.

- Option 2: While mariculture involves the cultivation of marine organisms, it typically focuses on specific species, like fish, shellfish, and seaweeds, rather than "massive plants and animals."

- Option 3: Mariculture is often related to areas with tidal influences, as these environments are rich in nutrients and ideal for the cultivation of marine life.

- Option 4: This implies that all statements above are correct, but it's too broad because mariculture specifically refers to marine aquaculture, not all aspects mentioned.

Option 1 is the correct answer.