Many years ago the greatest threat to areas of standing water, such as ponds and lakes, was neglect. They gradually filled in and were occupied by shrubs and trees. Today, however, pollution from the modern world is the most serious threat to all water life. Farming practices pollute the water with fertilizers and pesticides. Sewage and waste from industry is also discharged into the rivers. On top of this, rivers and canals are often used as unofficial dumping sites for household waste. One of the saddest sights is to see dead fish floating on top of the water. Hopefully, tough laws controlling pollution may make this a thing of the past.
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Fact File: Frogs produce large quantities of spawn in the spring. Keep a small amount in a jar with pond weeds and watch it grow into tadpoles. |
Picture Credit : Google