Application and improvement of Virtual Population Analysis (VPA) in stock assessment of Thamnaconus septentrionalis;

Age and growth of Thamnaconus septentrionalis and rational exploitation;

Stock assessment and catch predicition of the filefish, Thamnaconus septentrionalis,have been carried out for more than 10 years by using Virtual Population Analysis (VPA) with the help of microcomputer.

Based on the capture of Navodon tessellates and fishing effort of Guangdong, Fujian, Zhejiang, and Guangxi provinces of China,surplus yield model was applied to assess the MSY of it.

, as new cestode record of China, and the host Navodon sp.

Study on the populations of Thamnaconus hypargyreus in the East China Sea and the South China Sea;