What date did the rusty crayfish arrive to Ontario?

Are there great white sharks where the titanic sank? DOES CRAYFISH EAT MUSHROOMS? How the seahorse adapted to its biome? Where do you buy odorless bleach? What colour is the blobfish? Do guppy eat cows? What is eutrophication and how do humans cause it in bodies of water? How do you cure asthma? How does dumping waste into water resources affect organisms in the water? What is the most dagerous shark in the world? Do stingrays sting when there dead? Do sharks swim close to shore in New Jersey? How do you measure your large mouth bass correctly? How many teeth does a shark loose a day? How should you care for a freshwater pearl necklace? What should you do if your husband wears your high heels all the time when you're home alone and do any other men do this? Your fishpond has plenty of white bubbles please explain cause? What eats hake? Can cherry shrimp live with mollies? Can you fish at enchanted rock?