what are some threats to coral reefs?

Question

how can pollution be stopped?

Answer 1

The single biggest threat to the coral reefs around the world is global warming. The rising ocean temperatures are destroying the reefs.

Answer 2

Main threats to coral reefs include coastal developmet, overfishing, pollution, global warming, and many more minor problems. Also not all pollution can be stopped, or else we would have to get rid of everyday appliances, but we can reduce it by not dumping chemical into oceans near reefs, or by stopping companies from using ocean water to cool their machines and then putting back in the ocean( thermal pollution). Basically if we just take better care of the oceans then we can save what remains of the coral reefs.

Answer 3

Threats to coral reefs:

1. Pollution - oil, illegal dumping, sewage, gas from smaller boats (divers, tourists) etc
2) Man - divers
3) Global Warming - water temp. change
4) Fishing - bottom-trawling
5) Fishing - reef-feeders have declined - change in the ecosystems - unbalanced -more algae - coral dies
6) Land Development - changed coastal area causes a change in freshwater run-off carrying sediments out that alter nutrients, increase the turbidity, decrease light
7) Natural threats - hurricanes, typhoons - waves break large pieces which then hit against the smaller corals
8) Natural threat - large star fish - number have increase due to land development - water becomes enriched in dissolved nutrients (eutrophication) and attracts the starfish

Answer 4

1. chemical pollution from run-off and spills
2. silt dropping to cover the coral polyps
3. damage from anchors, propellers, divers
4. temperature change in the water
5. collecting

Answer 5

I don't think so sadly... there is so much traffic in the sea (large oil ships, leisure boaters, etc) that I think it will always be an issue. We also dump a lot of our sewage into the sea.. can't be good for anything living there.

Answer 6

Crown of thorns starfish is one - international warming is being blamed for each thing those day's. perchance they are accurate .Or it might want to be a organic cycle that stretches over 1000's of years.

Answer 7

Humans-
Scuba divers are in general very ecology oriented, and care about nature and the reefs. Amateur tourists that scuba for a day untrained maybe, but they are not real scuba divers. Please do not generalize...

Answer 8

global warming---producing less oxygen in the water

Answer 9

humans, scuba divers are the worst.