Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (29): 140-145.doi: 10.11924/j.issn.1000-6850.casb2021-0044

Special Issue: 水产渔业

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Evaluation of Damage Caused by Fish Pump Based on Principal Component Analysis

Shan Jianjun(), Guan Chongwu(), Song Hongqiao, Liu Shijing, Hong Yang, Zhuang Baolu   

  1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092
  • Received:2021-01-15 Revised:2021-06-22 Online:2021-10-15 Published:2021-10-29
  • Contact: Guan Chongwu E-mail:shanjianjun@fmiri.ac.cn;guanchongwu@fmiri.ac.cn

Abstract:

To provide technical parameters for the research and improvement of fish pump, the damage comprehensive evaluation method of vacuum fish pump was established by means of Principal Component Analysis (PCA). Experiments on Carassius auratus were carried out by vacuum fish pump to obtain fish body damage data. A comprehensive injury evaluation model was established by measuring the injured surface area ratio, 24-hour survival rate, red blood cell number, white blood cell number, superoxide dismutase activity, alanine aminotransferase activity and creatinine content. The results showed that the cumulative contribution rate of three principal components extracted by PCA was 78.232%, which could represent most of the fish damage. The comprehensive evaluation model of fish damage by vacuum fish pump was F=0.285X1+0.111X2+0.316X3+0.366X4-0.118X5+0.234X6. There was no significant damage to the surface and viscera of fish by vacuum fish pump, and the comprehensive score was -0.102, which was close to that of the control group, indicating that the damage effect of vacuum fish pump on fish was very small. The results of experiments show that SOD activity, white blood cell count and body surface damage area ratio are the data indexes that have great influence on damage evaluation. The comprehensive damage evaluation model established by PCA can be used as a feasible method to evaluate the damage of fish, which provides a powerful reference for the improvement of fish suction pump.

Key words: vacuum fish pump, Carassius auratus, damage assessment, principal component analysis, comprehensive evaluation model

CLC Number: