Reproductive cycle of Sydney rock oysters, Saccostrea glomerata (Gould 1850) selectively bred for faster growth

M C Dove; Wayne A O'Connor

doi:10.1016/j.aquaculture.2011.10.022

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Reproductive cycle of Sydney rock oysters, Saccostrea glomerata (Gould 1850) selectively bred for faster growth

Journal article

Peer reviewed

Reproductive cycle of Sydney rock oysters, Saccostrea glomerata (Gould 1850) selectively bred for faster growth

M C Dove and Wayne A O'Connor

Aquaculture, Vol.324-325, pp.218-225

2012

DOI: https://doi.org/10.1016/j.aquaculture.2011.10.022

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Abstract

oyster

saccostrea glomerata

selective breeding

gametogenic cycle

condition index

reproductive cycle

Since 1990, Industry and Investment New South Wales' (NSW) Sydney rock oyster (SRO) breeding programme has successfully used selective breeding to improve oyster growth rates. But, some oyster growers have observed that selected oysters condition at a different rate and to a different extent compared to naturally caught oysters grown under similar conditions. The condition index, sex, gametogenic stage and gonad area of fifth generation SROs selectively bred for fast growth were investigated by collecting monthly samples at a northern, mid and southern site in NSW between June 2005 and July 2006. Non-selected oysters farmed under the same conditions were also sampled at the same time. Overall, selected and non-selected oysters developed and spawned at each site synchronously, however, selectively bred oysters, in most instances, had a lower condition index, different meat conditioning cycle and reduced gonad area than their non-selected counterparts. Although selective breeding for fast growth hasn't changed reproductive timing, the variation in meat condition is consistent with oyster grower's observations and has encouraged further research to better understand the environmental responses of selected oysters and improve reproductive condition in SRO through breeding. © 2011.

Details

Title: Reproductive cycle of Sydney rock oysters, Saccostrea glomerata (Gould 1850) selectively bred for faster growth
Authors: M C Dove (Author) - Industry and Investment NSW
Wayne A O'Connor (Author) - Industry and Investment NSW
Publication details: Aquaculture, Vol.324-325, pp.218-225
Publisher: Elsevier BV
DOI: 10.1016/j.aquaculture.2011.10.022
ISSN: 0044-8486
Organisation Unit: GeneCology Research Centre - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99451081002621
Output Type: Journal article

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