File:FMIB 35033 Treating pond with copper sulphate for killing algae Laborer is dragging a small bag of the chiemical through the water by means.jpeg

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FMIB_35033_Treating_pond_with_copper_sulphate_for_killing_algae_Laborer_is_dragging_a_small_bag_of_the_chiemical_through_the_water_by_means.jpeg ‎(693 × 399 pixels, file size: 45 KB, MIME type: image/jpeg)

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Author
Samuel Frederick Hildebrand  (1883–1949)  wikidata:Q1600233
 
Alternative names
Samuel F. Hildebrand
Description American zoologist and ichthyologist
Date of birth/death 15 August 1883 Edit this at Wikidata 16 March 1949 Edit this at Wikidata
Location of birth/death Indiana Washington, D.C.
Authority file
creator QS:P170,Q1600233
Description
English: Treating pond with copper sulphate for killing algae. Laborer is dragging a small bag of the chiemical through the water by means of a pole
  • Subject: Fish ponds, Mosquitoes--Control
  • Tag: Limnology
Français : Traitement d'une mare (en 1918) par le sulphate de cuivre pour tuer les algues (le cuivre est un puissant algicide), ici dans l'espoir de lutter contre les moustiques.
Date 1920
date QS:P571,+1920-00-00T00:00:00Z/9
institution QS:P195,Q219563
Current location
English: Freshwater and Marine Image Bank
Accession number
35033
Source/Photographer
English: Hildebrand, Samuel F. (1920) Fishes in relation to mosquito (and algae) control in ponds (Copper is a powerfull biocide for algae), Report of the United States Commissioner of Fisheries for the Fiscal Year 1918, with Appendixes, Washington, DC: Government Printing Office
Permission
(Reusing this file)
Public domain This is a photograph from the Freshwater and Marine Image Bank at the University of Washington. Materials in the Freshwater and Marine Image Bank are in the public domain. No copyright permissions are needed. Acknowledgement of the Freshwater and Marine Image Bank as a source for borrowed images is requested.

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