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« Freshwater and Marine Image Bank
 
Search results for Hatcheries > Fish Hatcheries -- Equipment A... > Shellfish   
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Image (9)

Digital collection
Freshwater and Marine ... (9)

Image Date
1924 (8)
1902-1903 (1)

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Artificial propagated oyster spat collected on sea-scallop shells for observation. Lower row, spat 7
1. Artificial propagated oyster spat collected on sea-scallop shells for observation. Lower row, spat 7 weeks old; upper row, spat three weeks old. The three shells on the lift in the upper row were kept in the rearing tank while the others were placed in the harbor
Artificial spat collectors coated with paraffin and sand, which allows heavy sets to break up into single
2. Artificial spat collectors coated with paraffin and sand, which allows heavy sets to break up into single oysters after one or two months
Pound stakes covered with a heavy set of year-old oysters from Great South Bay, 1921. The convex surface
3. Pound stakes covered with a heavy set of year-old oysters from Great South Bay, 1921. The convex surface of brush, takes, tarred rope, etc., will produce good oysters when thickly covered with spat
Barrel equipped for developing oyster embryos in the shell stage a, Fine stream for supplying salt
4. Barrel equipped for developing oyster embryos in the shell stage
a, Fine stream for supplying salt water and circulation in the barrel; b, salt water containing embryos; c, 2-inch layer of fine sand; d, filtros block; e, drain pipe with control valve
Adult oysters spawning naturally on tray in large spawning tank
5. Adult oysters spawning naturally on tray in large spawning tank
Experimental oyster hatchery, showing outdoor equipment consisting of one large spawning tank and three
6. Experimental oyster hatchery, showing outdoor equipment consisting of one large spawning tank and three rearing tanks with filter blocks in place
One-year-old oysters that set on tar-coated pound nets in Great South Bay, Long Island, 1921. Such a
7. One-year-old oysters that set on tar-coated pound nets in Great South Bay, Long Island, 1921. Such a collector is suitable for producing excellent single oysters from heavy sets, with little mortality from overcrowding
Artificiall propagated oyster spat collected on sea-scallop shells for observation. Lower row, spat 7
8. Artificiall propagated oyster spat collected on sea-scallop shells for observation. Lower row, spat 7 weeks old; upper row, spat three weeks old. The three shells on the lift in the upper row were kept in the rearing tank while the others were placed in t
Interior of Engine Room of Plant Used in 1902 at Woods Hole
9. Interior of Engine Room of Plant Used in 1902
at Woods Hole
   
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