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dc.contributor.authorDonelson, JM
dc.contributor.authorMunday, PL
dc.contributor.authorMcCormick, MI
dc.contributor.authorPankhurst, NW
dc.contributor.authorPankhurst, PM
dc.date.accessioned2017-05-03T11:47:19Z
dc.date.available2017-05-03T11:47:19Z
dc.date.issued2010
dc.date.modified2014-02-03T04:09:14Z
dc.identifier.issn0171-8630
dc.identifier.doi10.3354/meps08366
dc.identifier.urihttp://hdl.handle.net/10072/35329
dc.description.abstractClimate change is predicted to increase ocean temperatures and alter plankton communities that are food for many marine fishes. To examine the effects of increased sea surface temperature and fluctuating food levels on reef-fish reproduction, breeding pairs of the coral reef damselfish Acanthochromis polyacanthus were maintained for a full summer breeding season in an orthogonal experiment comprising 3 temperature and 2 food levels. Water temperatures were the current-day average summer temperature for the collection location (28.5é and temperatures predicted to become close to the average for this region over the next 50 to 100 yr (30.0 and 31.5é. Pairs were fed either a high or low quantity diet based on average and minimum feeding rates in the wild. Both water temperature and food supply affected reproductive output. Fewer pairs bred at elevated water temperatures and no pairs reproduced at either of the higher temperatures on the lower quantity diet. Furthermore, eggs produced were smaller at 30.0 and 31.5àcompared to those at 28.5î Histological analysis of the gonads and steroid hormone measurement did not reveal any apparent differences in patterns of oogenesis among treatments. However, spermatogenesis was reduced at high temperatures despite some increases in plasma androgen levels. Reduced breeding rate at warmer temperatures combined with reduced sperm production indicates the potential for significant declines in A. polyacanthus populations as the ocean warms.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent374058 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherInter-Research
dc.publisher.placeGermany
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom233
dc.relation.ispartofpageto243
dc.relation.ispartofjournalMarine Ecology Progress Series
dc.relation.ispartofvolume401
dc.rights.retentionY
dc.subject.fieldofresearchOceanography
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEcology not elsewhere classified
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchcode3708
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode310399
dc.subject.fieldofresearchcode3109
dc.titleEffects of elevated water temperature and food availability on the reproductive performance of a coral reef fish
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2010 Inter Research. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorPankhurst, Ned W.


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