码头经营者依托免费服务营利（念念有余）

Core Insights - The article discusses the economic activities and relationships within the fishing community at Wukan Port, Guangdong Province, highlighting the unique methods of crab fry collection and the dynamics between fishermen and service providers [1][2][3] Group 1: Economic Activities - Wukan Port has over 100 small fishing boats, with a notable increase in the number of boats over the past decade, particularly those targeting crab fry [1] - Crab fry are collected using light to attract them, with a significant mortality rate of 80% from the smallest size to a larger size [1] - The price for crab fry varies, with the smallest size selling for 0.3 yuan each and larger ones for 0.5 yuan [1] Group 2: Community Structure - Wukan Village has a population of 14,500, resembling a small town with various shops and markets, facilitating local sales of fish catches [2] - The port's natural shape provides a safe harbor for small fishing boats, as larger vessels cannot dock due to sediment accumulation [2] Group 3: Business Relationships - The relationship between fishermen and the dock maintenance provider is flexible, with fishermen able to dock at other piers if necessary [3] - The dock operator, referred to as Chen, maintains a stable relationship with crab fry merchants by providing sorting and packaging services, ensuring a consistent supply [2][3] - Additional services, such as free charging for fishing boats, are offered to attract fishermen to dock at Chen's pier [2][4] Group 4: Revenue Generation - The revenue model for dock operators is similar to that of a transportation service in another village, relying on free services to attract customers and then profiting from the sale of goods [4] - Chen's approach includes providing free services and charging during transactions, which is more manageable than a fixed fee structure [4] - Fishermen feel they are not being exploited, as they receive professional services alongside the free offerings [4]