Causes of keratitis include: 1  Injury. 2  If an object scratches the surface of one of your corneas or penetrates a cornea, keratitis without an infection may result. 3  In addition, an injury may allow bacteria or fungi to gain access to the cornea through the damaged surface, causing infectious keratitis.
There are 5 species of stonefish that can be found in the coastal regions of Indian and Pacific oceans. Some species of stonefish live in the rivers. Stonefish lives close to coral reefs and underwater rocks. It often lies buried in the sand in the shallow water.
Crayfish Habitat, Food, Trapping, & Aquariums. Crayfish are small crustaceans that live in freshwater water habitats in which do not freeze over in cold conditions. Depending on where you are location wise, the crayfish is also referred to as a crawdad or crawfish.he best thing to use in a crayfish trap are usually going to have a very strong scent because crayfish use their tentacles to go off of sent in the water. But I have had the best luck with personally is just dead fish or dead fish guts.