An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.ome of the important abiotic environmental factors of aquatic ecosystems include substrate type, water depth, nutrient levels, temperature, salinity, and flow. It is often difficult to determine the relative importance of these factors without rather large experiments.
(Newser) â Here's a fun fact to throw around the Thanksgiving table: Lots of turkey farms use arsenic in their feed. Yes, that arsenic, the deadly poison, which can control stomach bugs in turkeys and fatten them up, explains NPR's Shots health blog.It can also show up in the turkey meat on the table in trace amounts.es, that arsenic, the deadly poison, which can control stomach bugs in turkeys and fatten them up, explains NPR's Shots health blog. It can also show up in the turkey meat on the table in trace amounts.
The toxic properties of arsenic compounds made them useful as rat poison. However, they are seldom used for this purpose today. Safer compounds are used that do not present a threat to humans, pets, and the environment. Today, the most important use of arsenic is in the preservation of wood.It is used in the form of a compound called chromated copper arsenate (CCA). CCA accounts for about 90 percent of all the arsenic used in the United States.ccurrence in nature. Arsenic rarely occurs as a pure element. It is usually found as a compound. The most common ores of arsenic are arsenopyrite (FeAsS), orpiment (As 2 S 3), and realgar (As 4 S 4).