The article explores the significant decrease in crayfish prices in Nanjing, China, as the start of summer approaches, with prices dropping to around $20 per pound from previous highs of 50-60 yuan per catty. This price drop is due to an increase in crayfish farming, particularly in Zhejiang and Fujian, leading to a larger supply. Despite this, not all crayfish is selling well due to size issues. Furthermore, while fresh crayfish is becoming cheaper, the cost of lobster tails remains high at 216 yuan for 15 catties, indicating a gap in market prices. The article also highlights the logistical challenges and costs involved in transporting and cooking fresh crayfish, contributing to the price gap between wholesale and retail.