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Sewage, particularly untreated sewage, contains a lot of bacteria, and that bacteria can infect fish and kill them.
One of the main concerns of dumping untreated sewage is bacteria levels. Sewage is teaming with bacteria far above a safe level. When this is poured into a river it can create many problems. Some of the most prominent are that it makes the water dangerous swim in and it makes the water undrinkable. Also, it can kill the plants and animals living in the river and make the remain life sick and dangerous to eat because of the bacteria and parasites that once lived in the sewage and now live in the fish.
Scat
unhealthy water to have can kill from choking
Sewage contains many different contaminants that can harm fish. These include: * Biologically active materials: These materials decompose my microbial action. This activity reduces the oxygen dissolved in the water and essentially suffocates the fish * Cleaners and othe pH altering materials: These materials affect fish by attacking the gill membranes * Pharmaceuticals: These materials have along term impact on fish reproduction * Parasites: Sewage can contain parasites that infect fish * Temperature: The warm sewage can kill fish quickly by thermal shock and oxygen reduction or on a long term basis by changing the makeup of the local ecosystem * Sedimentation: Solids from the sewage can cover breeding or spawning areas * Nurients: The nutrients in the sewage can eutrophy the local waters leading to algal blooms, oxygen depletion, the overgrowth of undersitable species or stratification of the water into aerobic and anaerobic layers
well yes it may do depending what is in the sewage it may kill alot of fish it may spread a diasies that may kill alot of fish in the lake.
Sewage in beaches is capable of killing fish. Sewage usually contains higher than normal lead content. Lead is poisonous to fish and plankton. Sewage should only be diverted to a treatment plant.
fish
Ich will kill every fish in the tank. It is deadly if left untreated. You will need to get to a pet shop and buy some Whitespot /Ich medication ASAP.
Sewage is a rich source of nitrogen and phosphorus which facilitates plant growth. As "night soil" sewage is a historic fertilizer in much of the third world. In urban areas sewage is often contaminated with heavy metals (lead, chrome, zinc) and may impact plant growth. In water sewage encourages algal growth leading to eutrophication and algal blooms which in turn deplete oxygen levels causing fish kills.
They are small and have a lot of fish and plants in them.Ponds will accumulate muck on the bottom if the water remains untreated with a beneficial bacteria.
it has water pollution because of it's sewage, septic tanks, and cesspits. They also over fish in the Keys.