unhealthy water to have can kill from choking
becase they dont have very high ammune system
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.
oil spill,kill innocent aquatic life,sewage & the throwing of garbage into the water
It would kill everything in the pond, kill every animal who tries to drink the water and cause a horrible permanent stink for miles.
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 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
yes
Nah, dumping is when you kill them, and leave the body in a dumpster.
Some what, yes other reasons are possibly people are dumping toxic wast into the water witch kills the fish, or there is too much fishing in one area.
Aquatic animals
Fertilizer rnoff can kill fish by darkenning the water and not allowing sunlight to come through. If sunllight can not come through, SAV's(Submerged Aquatic Vegitation) dies. Most fish eat SAV"s. If the primary source of fish food is dead, the fish die too.