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Tuesday, January 30 • 6:00pm - 9:00pm
Poster Display. Determination of the most accurate method to estimate length and weight in small bodied fishes

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AUTHORS: Jaden Patterson, Eastern Illinois University Department of Biological Sciences; Robert Colombo, Eastern Illinois University Department of Biological Sciences

ABSTRACT: Determination of the biomass of small-bodied forage fishes is of great concern to biologists; however, accurate and precise weight measurements of these fishes in the field can be difficult. We sought to determine the effect that different environmental factors had on the weight and length measurements of small-bodied fishes. To do this we will determine the effect that different conditions have on the weight measurements of small-bodied forage fishes. We will test the effect of the conditions: outside (alive), inside (alive), inside (dead), and inside (preserved), and the interactions of these factors. The results showed that there was no significant difference between the mean weights of the fish taken in each condition. Moreover, when the variance of each condition was taken, the pickled weights had the lowest variance followed by the alive inside, dead inside, and the largest variance was found in the alive outside weights. This shows that there is no condition that is the best to take measurements of small-bodied fish; however, to have the lowest variance, the best condition would be to preserve them. 

Tuesday January 30, 2018 6:00pm - 9:00pm CST
Ballroom C & Foyer

Attendees (4)