Category:Herbert F. Prytherch

Media in category "Herbert F. Prytherch"

The following 11 files are in this category, out of 11 total.

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  FMIB 37659 Artificiall propagated oyster spat collected on sea-scallop shells for observation Lower row, spat 7 weeks old; upper row, spat.jpeg 869 × 779; 147 KB
  
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  FMIB 37660 Apparatus for the removal of parasites by a continuous flow of water.jpeg 934 × 624; 174 KB
  
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  FMIB 37667 One-year-old oysters that set on tar-coated pound nets in Great South Bay, Long Island, 1921 Such a collector is suitable for.jpeg 680 × 977; 131 KB
  
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  FMIB 37670 Experimental oyster hatchery, showing outdoor equipment consisting of one large spawning tank and three rearing tanks with.jpeg 874 × 719; 152 KB
  
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  FMIB 37673 Adult oysters spawning naturally on tray in large spawning tank.jpeg 852 × 680; 159 KB
  
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  FMIB 37681 Barrel equipped for developing oyster embryos in the shell stage.jpeg 874 × 895; 150 KB
  
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  FMIB 37683 Pound stakes covered with a heavy set of year-old oysters from Great South Bay, 1921 The convex surface of brush, takes, tarred.jpeg 645 × 917; 171 KB
  
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  FMIB 37684 Catfish infected with the parasite Ichthyophtherius multifilis.jpeg 1,502 × 809; 151 KB
  
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  FMIB 37687 Artificial spat collectors coated with paraffin and sand, which allows heavy sets to break up into single oysters after one or.jpeg 895 × 723; 147 KB
  
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  FMIB 47807 Life cycle of the parasite.jpeg 977 × 985; 180 KB
  
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  FMIB 47808 Clamshell heavily set with thousands of young spatand a portion of the shell enlarged to show the detailed structure of the spat.jpeg 1,446 × 925; 337 KB