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.
Report Abuse. Some fish that live in open waters like rivers and oceans swim south for the winter. But many fish live in lakes and ponds that do not connect to other water. When it gets very cold, ice forms on top of their lakes and ponds, but it doesn't freeze down to the bottom of the lake.