Journal of Tropical Oceanography ›› 2020, Vol. 39 ›› Issue (2): 118-126.doi: 10.11978/2019046CSTR: 32234.14.2019046

• Marine Environmental Protection • Previous Articles    

Competitive pressure inquiry and resource allocation of coral fishes based on LSH method

Danfeng ZHAO(), Zhou HUANG, Qiang XU, Dongmei HUANG()   

  1. Information College, Shanghai Ocean University, Shanghai 201306, China
  • Received:2019-05-10 Revised:2019-07-04 Online:2020-03-10 Published:2020-03-10
  • Supported by:
    National Natural Science Foundation of China(41671431)

Abstract:

Coral fish protection strategy based on ocean big data query technology is an important subject in marine science research. Among them, the competition of fish populations is of great significance to fish protection. In order to study the competition of fish populations, it is necessary to model the relationship between fish populations and coral reefs. As a simple and effective big data model, a graph model is a practical model to express this relationship. Therefore, we propose a competition graph model of coral fish populations and fish-dependent coral reef resources. Then, a big data graph query method based on Local Sensitive Hashing (LSH) is proposed to analyze the competitive pressure of fish populations and obtain real-time competitive pressure of fish populations. Third, according to the results of LSH query, the fish population that needs priority protection is analyzed. Finally, a resource allocation strategy based on constructing artificial reefs was designed for these fish populations to improve the overall competition of coral fishes in the region.

Key words: coral fishes, competition graph, Local Sensitive Hashing, resource allocation, overall competition

CLC Number: 

  • P735.541