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Titolo:
Use of sterile triploid Atlantic salmon (Salmo salar L.) for aquaculture in New Brunswick, Canada
Autore:
Benfey, TJ;
Indirizzi:
Univ New Brunswick, Dept Biol, Fredericton, NB E3B 6E1, Canada Univ New Brunswick Fredericton NB Canada E3B 6E1 cton, NB E3B 6E1, Canada
Titolo Testata:
ICES JOURNAL OF MARINE SCIENCE
fascicolo: 2, volume: 58, anno: 2001,
pagine: 525 - 529
SICI:
1054-3139(200104)58:2<525:UOSTAS>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRESH-WATER PERFORMANCE; RAINBOW-TROUT; FLOW-CYTOMETRY; FEMALE; SURVIVAL; FISH;
Keywords:
aquaculture; sterility; triploidy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Benfey, TJ Univ New Brunswick, Dept Biol, Fredericton, NB E3B 6E1, Canada Univ New Brunswick Fredericton NB Canada E3B 6E1 B 6E1, Canada
Citazione:
T.J. Benfey, "Use of sterile triploid Atlantic salmon (Salmo salar L.) for aquaculture in New Brunswick, Canada", ICES J MAR, 58(2), 2001, pp. 525-529

Abstract

Induced triploidy is the only effective method currently available for mass production of reproductively sterile salmonids fbr aquaculture. Repeated studies at the Atlantic Salmon Federation's hatchery (St Andrews, New Brunswick. Canada) hac e shown only minor differences between triploids and diploids: in survival to S1 smolt agr (15 months), percentage of the populationwhich became S1 smolts. and mean S1 smelt size. However. a similar study at a commercial hatchery was terminated because of exceptionally high mortality of triploids prior to the start of feeding. Marine growout trials in sea cages showed that triploids grew well in seawater. but had reduced survival rates (leading to a 5-15% reduction in yield at harvest) and high rates of jaw abnormalities. Similar results have been reported elsewhere. Although induced triploidy can be used effectively as a management tool to ensure lack of reproduction. there is at present little support of the aquacultureindustry to switch to their large-scale use. In light of fundamental biological differences, it is perhaps naive to expect triploids to perform as well as diploids using standard culture methods. Triploids should be treated as a new "species" For aquaculture development. beginning with research to determine their optimum rearing requirements, (C) 2001 International Council for the Exploration of the Sea.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 11:55:21