Reproductive cycle of the winged pearl oyster, Pteria penguin (Röding 1793) (Pteriidae) in north-eastern Australia

M Milione; Paul C Southgate

doi:10.1080/07924259.2011.583693

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Reproductive cycle of the winged pearl oyster, Pteria penguin (Röding 1793) (Pteriidae) in north-eastern Australia

Journal article

Peer reviewed

Reproductive cycle of the winged pearl oyster, Pteria penguin (Röding 1793) (Pteriidae) in north-eastern Australia

M Milione and Paul C Southgate

Invertebrate Reproduction and Development, Vol.56(2), pp.164-171

2012

DOI: https://doi.org/10.1080/07924259.2011.583693

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Abstract

gametogenesis

gonad development

oocyte

sex ratio

The spawning cycle of the winged pearl oyster, Pteria penguin, was studied at Orpheus Island, north-eastern Queensland to observe seasonal changes in gonad development, mean oocyte diameter and sex ratio over time. A total of 201 oysters were collected over 10 sampling periods, approximately every 5-6 weeks (mean=20 oysters/sample). Histological analysis of gonads showed that spawning activity occurred mainly through the austral mid-spring to late summer (November to March), when mean monthly water temperature ranged between 27.5°C and 29.4°C. There was a primary spawning peak at the beginning of the spawning season in December, followed by a secondary peak in March. Mean oocyte diameter (μm) was highest during the warmer months, ranging from 31.2±2.4 in November to 36.2±3.2 in March, and sex ratio analysis showed the percentage of females in the population also peaked between 30% and 50% during this period. © 2012 Taylor & Francis.

Details

Title: Reproductive cycle of the winged pearl oyster, Pteria penguin (Röding 1793) (Pteriidae) in north-eastern Australia
Authors: M Milione (Author) - James Cook University
Paul C Southgate (Author) - James Cook University
Publication details: Invertebrate Reproduction and Development, Vol.56(2), pp.164-171
Publisher: Taylor & Francis Ltd.
Date published: 2012
DOI: 10.1080/07924259.2011.583693
ISSN: 0792-4259
Organisation Unit: School of Science and Engineering - Legacy; Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449401702621
Output Type: Journal article

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