Rapid Response of Daphnia magna Motor Behavior to Mercury Chloride Toxicity Based on Target Tracking

A rapid and timely response to the impacts of mercury chloride, which is indispensable to the chemical industry, on aquatic organisms is of great significance. Here, we investigated whether the YOLOX (improvements to the YOLO series, forming a new high-performance detector) observation system can be...

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Bibliographic Details
Published in:Toxics (Basel) 2024-09, Vol.12 (9), p.621
Main Authors: Qin, Feihu, Zhao, Nanjing, Yin, Gaofang, Wang, Tao, Jv, Xinyue, Han, Shoulu, An, Lisha
Format: Article
Language:English
Subjects:
Acceleration
Aquatic ecosystems
Aquatic organisms
Average velocity
Behavior
Biomarkers
Chemical industry
Chloride
Chlorides
Daphnia magna
Environmental risk
Experiments
Exposure
Food chains
Heavy metals
Laboratory animals
Mercuric chloride
Mercury
Mercury compounds
Motility
motor behavior
Organisms
Performance indices
Pollutants
Real time
sensitive indexes
Target detection
target tracking
toxic response
Toxicity
Tracking
Velocity
Water pollution
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Summary:A rapid and timely response to the impacts of mercury chloride, which is indispensable to the chemical industry, on aquatic organisms is of great significance. Here, we investigated whether the YOLOX (improvements to the YOLO series, forming a new high-performance detector) observation system can be used for the rapid detection of the response of targets to mercury chloride stress. Thus, we used this system for the real-time tracking and observation of the multidimensional motional behavior of . The results obtained showed that the average velocity (v¯), average acceleration (a¯), and cumulative travel (L) values of exposed to mercury chloride stress changed significantly under different exposure times and concentrations. Further, we observed that v¯, a¯ and L values of could be used as indexes of toxicity response. Analysis also showed evident inhibition at exposure concentrations of 0.08 and 0.02 mg/L after exposure for 10 and 25 min, respectively. However, under 0.06 and 0.04 mg/L toxic stress, v¯ and L showed faster toxic response than a¯, and overall, v¯ was identified as the most sensitive index for the rapid detection of response to toxicity stress. Therefore, we provide a strategy for tracking the motile behavior of in response to toxic stress and lay the foundations for the comprehensive screening of toxicity in water based on motile behavior.
ISSN:2305-6304
2305-6304
DOI:10.3390/toxics12090621