Sunlight can penetrate through the limnetic zone into the profundal zone.
"Moonlight".
The land under an ocean at the edge of a continent is called the continental shelf. This is the shallow submerged portion of a continent that extends from the shoreline to the continental slope.
A shallow area may be called a "ford" (the verb to fordis "to cross at a shallow point").
Cresent.
a small, shallow dish
Kelp forests are found in the ocean zone called the neritic zone, which is the shallow part of the ocean where sunlight can penetrate to allow for photosynthesis. These underwater ecosystems are typically located in temperate and polar regions with nutrient-rich waters.
A portion of butter is called a Pat of butter
Shallow parts of the sea or ocean are called shoals or shallows. They are areas where the water depth is relatively shallow, making them potentially hazardous for navigation.
A shallow place in a river is called a ford if it is used as a place to wade across to the other side. A shallow place can also be called a sandbar if the water does not cover all of the sand in a river or stream.
A stream?
The edge of a continent where the ocean water is shallow is called the continental shelf. This submerged extension of the landmass typically features a gentle slope and is rich in marine life due to the availability of sunlight and nutrients. Continental shelves play a crucial role in fisheries and are also significant for oil and gas exploration.
Portion of the area of a circle is called a sector.