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| Keywords: FMIB 47732 Troughs for Rearing Mussels.jpeg check categories 8 September 2015 5 Troughs for Rearing Mussels In troughs supplied with naturally clarified water flowing from near the surface of one of the ponds the best conditions have been found for rearing several species of fresh-water mussels As is the fortune of experimental work success has been variable but a single trough may produce in one season more than 2 000 young mussels one-fourth to one-half inch in length Subject Biological stations Fisheries research Fish ponds Mussel culture Geographic Subject United States--Iowa--Fairport Tag Hatcheries 1920 00 Cite book Fisheries Biological Station at Fairport Iowa Coker R E Washington DC Government Printing Office 1920 Annual Report of the Commissioner of Fisehries to the Secretary of Commerce for the Fiscal Year Ended June 30 1920 Plate II fig 2 Creator Robert Ervin Coker PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 47732 Images from the Freshwater and Marine Image Bank to check Robert Ervin Coker Biological stations Fish ponds Mussel culture Fish hatcheries | ||||
