Variable effects of larval size on post-metamorphic performance in the field

Marshall, D. J. and Keough, M. J. (2004) Variable effects of larval size on post-metamorphic performance in the field. Marine Ecology-progress Series, 279 73-80. doi:10.3354/meps279073

Author Marshall, D. J.
Keough, M. J.
Title Variable effects of larval size on post-metamorphic performance in the field
Journal name Marine Ecology-progress Series   Check publisher's open access policy
ISSN 0171-8630
Publication date 2004
Sub-type Article (original research)
DOI 10.3354/meps279073
Open Access Status DOI
Volume 279
Start page 73
End page 80
Total pages 8
Place of publication Oldendorf, Germany
Publisher Inter-Research
Language eng
Abstract Larval quality may be capable of explaining much of the variation in the recruitment and subsequent population dynamics of benthic marine invertebrates. Whilst the effects of larval nutritional condition on adult performance have received the most attention, recent work has shown that larval size may also be an important and ubiquitous source of variation in larval quality. We examined the effects of variation in larval size on the post-metamorphic survival and growth of Watersipora subtorquata in 2 very different habitats - experimental substrata and pier pilings. We found strong effects of larval size on colony performance, although these varied among experiments. For colonies on experimental substrata, larval size positively affected adult survival and, initially, growth. However, after 3 wk in the field, there was no relationship between larval size and colony size, possibly because colonies were completely surrounded by newly settled organisms. Larval size also positively affected post-metamorphic growth of colonies on pier pilings, but, surprisingly, colonies that came from larger larvae had lower survival than colonies from smaller larvae. Overall, variation in larval size will strongly affect the recruitment and subsequent performance of adults in this species, although this may vary among different habitats. This study highlights the importance of examining the effects of larval quality on adult performance in as realistic conditions as possible, because of the strong interaction between larval size effects and the environment.
Keyword Ecology
Marine & Freshwater Biology
Carry-over Effects
Egg Size
Benthic Marine-invertebrates
Bugula-neritina Bryozoa
Delayed Metamorphosis
Reproductive Output
Swimming Duration
Offspring Size
Maternal Size
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Biological Sciences Publications
Ecology Centre Publications
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Citation counts: TR Web of Science Citation Count  Cited 46 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 13 Aug 2007, 14:42:33 EST