Student Research Reports

View Research Report

This research has studied residential areas. In the Modtanoi area, Kantang District, Trang Province, the area is divided into 2 areas: high density area and low density area. In each study area randomly divided into 5 areas, using a 50x50 cm quadrat to study male and female behavior. And to study the quality of the soil such as soil texture Soil moisture Soil organic matter and soil pH were studied by 20 fiddler crabs per area and 20 per sex and counting the number of behaviors. The data were collected every week for a period of 4 weeks. We found 4 behaviors of male fiddler crabs classified as one behavior found in female crabs, namely feeding and 4 behaviors found in male crabs: feeding, cleaning of the claws. (griping), waving, fighting (fighting). It was found that in 2 minutes, the male in high density area. The four types of behavior rates were higher than males in the low density area. But on the other hand, the female In high density area. There will be a rate of behavior lower than females in low density areas and in high density areas, the higher the organic matter of the soil. Significantly low density areas including low density areas had significantly lower soil pH than those of high density areas .from the study, it was found that the frequency of behavior rates of the four types and soil quality were positively related to low density areas.