Culture of the quahaug from hatchery-spawned seed stock, 1975-1978
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Culture of the quahaug from hatchery-spawned seed stock, 1975-1978 by Ralph C. MacPherson

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Published by P.E.I. Dept. of Fisheries in Charlottetown, P.E.I .
Written in English

Subjects:

  • Shellfish culture -- Prince Edward Island

Book details:

Edition Notes

Statementby Ralph MacPherson, Paul S. Stewart, William N. Carver.
ContributionsStewart, Paul S., Carver, William N., Prince Edward Island. Dept. of Fisheries.
The Physical Object
Pagination40 p. :
Number of Pages40
ID Numbers
Open LibraryOL23777073M

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  By keeping the stock below metric ton level (e.g. since the late s). the population has had insufficient reproductive capability (numbers of eggs spawned) to generate year classes in excess of million fish, except in years of unusually high survival of age I fish (e.g. In , at least 20% of the quahogs produced in Massachusetts resulted from hatchery seed (Anonymous, ). In the early ’s, many towns spread hatchery seed over public beds and about 80 individuals in the state, each with from to at least 10 acres of leased bottom, grew the seed (MacKenzie, a). Scientific and extra-scientific issues Drivers of change in marine biodiversity Climate change, fisheries, and aquaculture are among the anthropogenic activities known or hypothesized to negatively affect organisms in Canada’s oceans. Thus, these drivers of biodiversity change merit :// Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion. Librivox Free Audiobook. Full text of "Journal of shellfish research" See other formats

The percentage of partially spawned individuals increased sharply in late summer months and by November-December, % of the clams appeared spent (i.e. spawned out). Fertilized Eggs and Larvae: Walker and O'Beirn () reared Spisula solidissima through the embryonic and early larval development period under laboratory Important references Comprehensive accounts of community structure of and interactions between trematodes in snail hosts can be found in the book by Combes (), and in the book chapters and reviews by Kuris (), Sousa (), Esch and Fernandez () and Kuris and Lafferty ().