File:A biological survey of the Erie-Niagara system. Supplemental to Eighteenth annual report, 1928 (1929) (20386842401).jpg

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Title: A biological survey of the Erie-Niagara system. Supplemental to Eighteenth annual report, 1928
Identifier: biologicalsurvey00newy (find matches)
Year: 1929 (1920s)
Authors: New York (State). Conservation Dept
Subjects: Natural history -- New York (State); Fishes -- Erie, Lake; Fishes -- Niagara River (N. Y. and Ont. ); Erie, Lake; Niagara River (N. Y. and Ont. )
Publisher: Albany, J. B. Lyon company, printers
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Biological Survey—Erie-Niagara Watershed 61 joarticular station or depth, a 50-liter sample of water was pumped into a galvanized iron can made for this purpose. From the pet- cock at the bottom of the can, the water sample was allowed to run through No. 20 silk strainer with bucket. The organisms retained in the bucket were then washed into a 4: oz. bottle and enough formaldehjTle added to preserve.
Text Appearing After Image:
Pump arrangement for net plankton To obtain a sample of the organisms that were so small as to go tlirough the meshes of the No. 20 silk strainer a one-liter sample of water Avas collected immediateh' after the 50-liter sample had been taken. To this 1-liter sample w^as then added sufficient formaldehyde to preserve until it could be centrifuged in the laboratory. In addition to the above quantitative collections, at each station qualitative collections were made by towing a No. 20 silk bolting cloth net, one foot in diameter, for 5 minutes at the surface and one also at the bottom. The depth at which the bottom net was strain- ing was determined from the angle and length of line out. These townet collections were preserved with formaldehyde and used in the laboratory for identification and as a supplement to the quan- titative catches. Laboratory Method.—The organisms strained from the 50-liter water samples were brought into the laboratory in the 4 oz. bottles. The excess water was siphoned off with a bent glass tube over the

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Flickr tags
InfoField
  • bookid:biologicalsurvey00newy
  • bookyear:1929
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:New_York_State_Conservation_Dept
  • booksubject:Natural_history_New_York_State_
  • booksubject:Fishes_Erie_Lake
  • booksubject:Fishes_Niagara_River_N_Y_and_Ont_
  • booksubject:Erie_Lake
  • booksubject:Niagara_River_N_Y_and_Ont_
  • bookpublisher:Albany_J_B_Lyon_company_printers
  • bookcontributor:MBLWHOI_Library
  • booksponsor:MBLWHOI_Library
  • bookleafnumber:63
  • bookcollection:biodiversity
  • bookcollection:MBLWHOI
  • bookcollection:blc
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
7 August 2015


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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/20386842401. It was reviewed on 1 November 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

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current20:06, 1 November 2015Thumbnail for version as of 20:06, 1 November 20152,060 × 1,616 (1.25 MB)Fæ (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': A biological survey of the Erie-Niagara system. Supplemental to Eighteenth annual report, 1928<br> '''Identifier''': biologicalsurvey00newy ([https://commons.wikimedia.org/w/ind...

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