“Littoral” is effectively equivalent to “nearshore”. Makes sense as written.

I misspelled strait, but I was referring to the shallows that contain the vast majority of ocean life due to ease of photosynthesis with littoral. Much of the Persian Gulf is within these shallows. In a lot of ways it acts like a salty inland sea that exchanges some of it’s saltier water with fresher water from the ocean, but that’s limited by the size of the strait of Hormuz.