We observed that lake herring stomachs were fuller during the day than at night, indicating that schooling herring forage more efficiently during the day than individual herring do at night.
Nous avons observé que les estomacs de ciscos de lacs sont plus remplis durant le jour que la nuit, ce qui indique que les ciscos en bancs s'alimentent plus efficacement le jour que les ciscos solitaires la nuit.