1: What are four types of water pollution? Define each.
Four types of water pollution are:
Thermal-When factories release hot water, which then increases the temperature of the water and leads to environmental imbalances
Chemical- discharge to toxic substances into water
Domestic-Flow of sewage, pesticides and other waste to bodies of water
Soil-Erosion causes soil to flow into water
2: Which fish species are the least tolerant of water pollution? Which species are the most tolerant? How do you arrive at your conclusion?
Trout is the least tolerant. I arrived at this conclusion because they require a specific temperature (40-45 celcius) and well-oxygenated waters. Compare this to the other fish that can survive with low oxygen, shallow waters or in any temperature. The most tolerant species is the catfish. I arrived at this conclusion because it can survive in any condition the other fish species can't, including low oxygen and high carbon dioxide, acidity, and pollutant levels.
3: Which invertebrates are the least tolerant of water pollution? Which species are the most tolerant? How do you arrive at your conclusion?
Stonefly nymphs are the least tolerant, because they require clean water and well-oxygenated water, while the rest can live in low oxygen waters. Midge larvae is the most tolerant, because they are able to live in any condition as long as there is a food supply.
4: What might a high level of bacteria indicate about DO levels? What is the relationship between bacteria and water pollution?
Bacteria decompose and take up oxygen when it is decomposed. If there is a lot of bacteria in the water, when they all eventually decompose they will take up all the oxygen. High levels of bacteria indicated that the DO levels would be low.
5: Based on the lab results, what conclusion can be drawn about each site? Which river was the most polluted? How did you arrive at your conclusion?
The conclusion that can be drawn about each site, is that in site #1 fish can only live in the Spring and Winter. In site #2, fish can only live in Spring, Summer, Autumn and Winter. In site # 3 Spring, Autumn and Winter is where the species can live in. The river that is most polluted is site #1, because the fish that can survive in this site are the ones that like the water with little to no oxygen and shallow waters. No other fish can be found in site #1. It is either carp, gar and catfish are found or there is no fish at all.
Four types of water pollution are:
Thermal-When factories release hot water, which then increases the temperature of the water and leads to environmental imbalances
Chemical- discharge to toxic substances into water
Domestic-Flow of sewage, pesticides and other waste to bodies of water
Soil-Erosion causes soil to flow into water
2: Which fish species are the least tolerant of water pollution? Which species are the most tolerant? How do you arrive at your conclusion?
Trout is the least tolerant. I arrived at this conclusion because they require a specific temperature (40-45 celcius) and well-oxygenated waters. Compare this to the other fish that can survive with low oxygen, shallow waters or in any temperature. The most tolerant species is the catfish. I arrived at this conclusion because it can survive in any condition the other fish species can't, including low oxygen and high carbon dioxide, acidity, and pollutant levels.
3: Which invertebrates are the least tolerant of water pollution? Which species are the most tolerant? How do you arrive at your conclusion?
Stonefly nymphs are the least tolerant, because they require clean water and well-oxygenated water, while the rest can live in low oxygen waters. Midge larvae is the most tolerant, because they are able to live in any condition as long as there is a food supply.
4: What might a high level of bacteria indicate about DO levels? What is the relationship between bacteria and water pollution?
Bacteria decompose and take up oxygen when it is decomposed. If there is a lot of bacteria in the water, when they all eventually decompose they will take up all the oxygen. High levels of bacteria indicated that the DO levels would be low.
5: Based on the lab results, what conclusion can be drawn about each site? Which river was the most polluted? How did you arrive at your conclusion?
The conclusion that can be drawn about each site, is that in site #1 fish can only live in the Spring and Winter. In site #2, fish can only live in Spring, Summer, Autumn and Winter. In site # 3 Spring, Autumn and Winter is where the species can live in. The river that is most polluted is site #1, because the fish that can survive in this site are the ones that like the water with little to no oxygen and shallow waters. No other fish can be found in site #1. It is either carp, gar and catfish are found or there is no fish at all.