Sampling day! On September 15th 2015, our lab concluded a long-term growth experiment on four large laboratory populations (500+ fish per tank) of Atlantic silversides (Menidia menidia), which were reared at ambient and high CO2 levels and low temperature (17C) and feeding conditions. Given all the hard work rearing these fish from eggs to 4 month old juveniles, sacrificing them is always a bittersweet moment. To avoid the word ‘killing’, we therefore coined the euphemism “becoming famous”.

Thanks to Jake’s new GoPro, here’s a time lapse of all of us working for hours to sample, measure and preserve various parts of the populations for later analyses of weight, sex, as well as genetic and transcriptomic approaches.