BIOL 111 Lecture 11: Aquatic Biodiversity
9 Oct 2014
School
Department
Course
Professor
Document Summary
Biol 111: ecology and the environment - lecture 11: aquatic biodiversity. Coastal zone warm, nutrient rich, shallow water that extends from the high-tide mark on the land to shallow edge of the continental shelf. Continental shelf submerged part of the continents: makes up less than a tenth of the worlds oceans, contains 90% of all marine species, site of the largest commercial marine fisheries. Open sea is the main body of the ocean, but contains the part that is outside territorial waters and not enclosed or partially enclosed by land. Most aquatic life zones are divided into three main layers. There are several environmental factors that govern the number and types of organisms found in each of the layers. Benthic province (continental region) includes all sediments and rocks of the ocean bottom. Starts at continental shelves and extends to the deepest seabed"s in deep-sea trenches. Pelagic province (water region) full water volume of the ocean.
