Why in News?
The ICAR-Central Marine Fisheries Research Institute (CMFRI) has developed MatsyaMetri, a smartphone application that can measure the length and width of fish without physically handling them.
Key Features
- Image-based measurement: Users can capture images of fish and estimate their length and width using an intelligent measuring tool.
- Automatic data recording: Measurements are automatically recorded and compiled into length-frequency datasets.
- Multiple fish measurement: Several individuals of the same fish species can be measured during a single sampling session.
- Length-frequency distribution: After measurements are completed, the app automatically generates length-frequency distributions using appropriate class intervals.
- Data export: Measurements and photographs can be saved with the sampling session and exported as a CSV file for further scientific analysis.
- Field surveys: The application is designed to support fisheries scientists, researchers and field survey teams in collecting biological data quickly and systematically.
How Does MatsyaMetri Work?
- MatsyaMetri is designed for ARCore-supported Android devices.
- After registering and logging in, users can create a sampling session and point the smartphone camera towards a flat surface. The fish is then placed within the camera's field of view.
- The application detects the surface and provides an on-screen measuring guide to estimate the fish's length and width.
Significance
The application can simplify biological data collection during fisheries field surveys and improve the systematic generation of data required for:
- Fisheries population analysis
- Stock assessment
- Resource monitoring
- Fisheries management
