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Ova production of American shad in Atlantic coast rivers.

Author: William S Davis
Publisher: Washington, U.S. Govt. Print. Off., 1957.
Series: Research report (U.S. Fish and Wildlife Service), 49.
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
Database:WorldCat
Summary:
The number of ova produced by American shad (Alosa sapidissima) based on samples of five fish from each of six Atlantic coast rivers was found to range from 209,000 to 616,000 ova per year. Hudson River shad produced fewer ova by size and St. Johns River shad produced more ova by size than did shad from the other four rivers. Statistical evidence is presented to show that the six ovarian samples per fish used to  Read more...
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Additional Physical Format: Online version:
Davis, William S.
Ova production of American shad in Atlantic coast rivers.
Washington, U.S. Govt. Print. Off., 1957
(OCoLC)798520757
Material Type: Government publication, National government publication
Document Type: Book
All Authors / Contributors: William S Davis
OCLC Number: 4329749
Description: 5 pages 24 cm.
Contents: Introduction --
Estimating ova production --
Comparison of ova counts by location of sample --
Summary.
Series Title: Research report (U.S. Fish and Wildlife Service), 49.

Abstract:

The number of ova produced by American shad (Alosa sapidissima) based on samples of five fish from each of six Atlantic coast rivers was found to range from 209,000 to 616,000 ova per year. Hudson River shad produced fewer ova by size and St. Johns River shad produced more ova by size than did shad from the other four rivers. Statistical evidence is presented to show that the six ovarian samples per fish used to estimate total ova production can be reduced without imparing the accuracy of the total ova production estimate.

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