Consumption data

During mark/recapture trials we shock up fish and every 5th fish is sacrificed so that stomach contents may be taken and examined for fish and insect proportions.
Preliminary in field “estimates” are made by eye, to determine the ratio of fish to invertebrate in the stomach.
Further examination by microscope will be conducted at the lab to retrieve more accurate determination of species in gut.

During mark/recapture trials we shock up fish and every 5th fish is sacrificed so that stomach contents may be taken and examined for fish and insect proportions.