1. Because of high tide: razor clams generally live on the coast. They can only be found on the shore after the tide recedes. In order to make it easier to catch, the high tide environment will be simulated, so spreading salt will make the razor clams mistakenly I thought that when the tide came in, they would come out of the hole and into the water, and it would be easy to catch them when they came out.

2. Because of fear: the suitable salt content of razor clams is 0.4%-2.8%. razor clams are intolerant to high-salt and hypertonic environments. If more salt is sprinkled in their environment, , and table salt contains more sodium ions, which will change the living environment of razor clams. The razor clams will escape from the environment because they are afraid of salt, so they will run out of the nest, making it easy to catch.