We hear a lot about the negative effects of different industries on natural resources, like fish populations, but we have few indications of how some of these pressures have affected different marine and coastal systems and what their long-term or hidden impacts might be.
![Modelling trapping methods used in the ancient Tyrian Purple industry to study populations [updated]](https://images.squarespace-cdn.com/content/v1/541bf450e4b02b7c37ee320f/1502122979362-N32X8JRI8WHR72XBK360/2011_IMG_1735.JPG)