This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Brook trout fry in trough sac stage.jpeg Brook trout fry in trough sac stage Subject Brook troutDevelopment Tag Fish Cite book FishCultural Practices in the United States Bureau of Fisheries Titcomb John Washington DC Government Printing Office Bulletin of the Bureau of Fisheries vol Part Plate LXXVII Creator John Wheelock