A study was conducted in Rushan Bay in May 2011 to examine the types and quantities of small creatures living in the area. They found a total of 116 different species, with worms being the most common. The average number of these creatures was 872 per square meter, and they weighed about 9.37 grams per square meter. The researchers also discovered that the diversity of species was slightly affected by pollution in the area. By grouping the data, they identified three distinct communities of these creatures living in the intertidal zone. Compared to other similar areas, Rushan Bay had more species, smaller creatures, and a higher number of individuals. Further research is needed to understand how shellfish farming might be impacting these creatures.