4.3- quadrat samples

- the sample must be random (preventing bias)
- must be representative (large enough to get an accurate estimate)
- the field gets broken down into squares and numbered- then you need random numbers for the x and y coordinates
- ater the numbers are found, the organisms are then counted
- a good sample is about 10% of the actual area
- results get put in a table and you add the number of organisms and then divide by the number of quadrats