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.
Jellyfish Species and Their Habitats. Jellyfish species vary in greatly in appearance and size, and sometimes this fact is what dictates the type of habitat a jellyfish prefers. Smaller species of jellyfish are almost always found closer to the shore â near beaches and in harbors â in water that is not very deep.here is one rare and distant relative of the jellyfish that can live in fresh water, but in general all jellyfish live in the ocean. The largest and most common jellyfish habitat is basically the open ocean. There are species of jellyfish living in every one of the worldâs oceans.