Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas
© Inter-Research 2020. Larvae are a critical dispersal stage of marine invertebrates, and their survival depends on nutrition and energetics. This study compared the size, survival, metabolic rate and egg and larval lipid class profiles of larvae of the endemic Sydney rock oyster Saccostrea glomerat...
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ftunivtsydney:oai:opus.lib.uts.edu.au:10453/147249 2023-05-15T17:54:18+02:00 Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas Gibbs, M Scanes, E Parker, L Byrne, M O'Connor, W Virtue, P Ross, P 2021-03-16T19:34:37Z application/pdf http://hdl.handle.net/10453/147249 en eng Inter-Research Science Center Marine Ecology Progress Series 10.3354/meps13538 Marine Ecology Progress Series, 2020, 656, pp. 51-64 0171-8630 1616-1599 http://hdl.handle.net/10453/147249 info:eu-repo/semantics/closedAccess 0405 Oceanography 0602 Ecology 0608 Zoology Marine Biology & Hydrobiology Journal Article 2021 ftunivtsydney 2022-03-13T13:17:54Z © Inter-Research 2020. Larvae are a critical dispersal stage of marine invertebrates, and their survival depends on nutrition and energetics. This study compared the size, survival, metabolic rate and egg and larval lipid class profiles of larvae of the endemic Sydney rock oyster Saccostrea glomerata and the invasive Pacific oyster Magallana gigas through a period of starvation for 5 and 9 d after fertilisation. Starved larvae grew without food until 5 d of age, at which point they stopped developing, but resumed growth when fed. Egg lipids profiles comprised 78.1 and 74.5% triacylglycerol for M. gigas and S. glomerata respectively. When fed, larvae of M. gigas were significantly larger in size and had faster growth and similar survival compared to S. glomerata. When starved, larvae of M. gigas and S. glomerata grew at similar rates, and there was a trend for lower survival of M. gigas. Larval endogenous lipid reserves were deleted in the first 24 h. Larvae of M. gigas had more total lipids and comparatively more diacylglycerols, monoacylglycerols, phospholipids and cholesterol, whereas S. glomerata had more diacylglycerols and produced sterol esters. Starvation altered the patterns of lipid assimilation, and metabolic rates of larvae of M. gigas and S. glomerata differed over time. When starved, S. glomerata larvae had greater capacity to cope with starvation compared to M. gigas, perhaps due to an evolutionary history in oligotrophic estuaries. As the climate rapidly changes in this global climate-change hotspot, S. glomerata is likely to be negatively affected. Article in Journal/Newspaper Pacific oyster University of Technology Sydney: OPUS - Open Publications of UTS Scholars Pacific |
institution |
Open Polar |
collection |
University of Technology Sydney: OPUS - Open Publications of UTS Scholars |
op_collection_id |
ftunivtsydney |
language |
English |
topic |
0405 Oceanography 0602 Ecology 0608 Zoology Marine Biology & Hydrobiology |
spellingShingle |
0405 Oceanography 0602 Ecology 0608 Zoology Marine Biology & Hydrobiology Gibbs, M Scanes, E Parker, L Byrne, M O'Connor, W Virtue, P Ross, P Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
topic_facet |
0405 Oceanography 0602 Ecology 0608 Zoology Marine Biology & Hydrobiology |
description |
© Inter-Research 2020. Larvae are a critical dispersal stage of marine invertebrates, and their survival depends on nutrition and energetics. This study compared the size, survival, metabolic rate and egg and larval lipid class profiles of larvae of the endemic Sydney rock oyster Saccostrea glomerata and the invasive Pacific oyster Magallana gigas through a period of starvation for 5 and 9 d after fertilisation. Starved larvae grew without food until 5 d of age, at which point they stopped developing, but resumed growth when fed. Egg lipids profiles comprised 78.1 and 74.5% triacylglycerol for M. gigas and S. glomerata respectively. When fed, larvae of M. gigas were significantly larger in size and had faster growth and similar survival compared to S. glomerata. When starved, larvae of M. gigas and S. glomerata grew at similar rates, and there was a trend for lower survival of M. gigas. Larval endogenous lipid reserves were deleted in the first 24 h. Larvae of M. gigas had more total lipids and comparatively more diacylglycerols, monoacylglycerols, phospholipids and cholesterol, whereas S. glomerata had more diacylglycerols and produced sterol esters. Starvation altered the patterns of lipid assimilation, and metabolic rates of larvae of M. gigas and S. glomerata differed over time. When starved, S. glomerata larvae had greater capacity to cope with starvation compared to M. gigas, perhaps due to an evolutionary history in oligotrophic estuaries. As the climate rapidly changes in this global climate-change hotspot, S. glomerata is likely to be negatively affected. |
format |
Article in Journal/Newspaper |
author |
Gibbs, M Scanes, E Parker, L Byrne, M O'Connor, W Virtue, P Ross, P |
author_facet |
Gibbs, M Scanes, E Parker, L Byrne, M O'Connor, W Virtue, P Ross, P |
author_sort |
Gibbs, M |
title |
Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
title_short |
Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
title_full |
Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
title_fullStr |
Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
title_full_unstemmed |
Larval energetics of the Sydney rock oyster Saccostrea glomerata and Pacific oyster Magallana gigas |
title_sort |
larval energetics of the sydney rock oyster saccostrea glomerata and pacific oyster magallana gigas |
publisher |
Inter-Research Science Center |
publishDate |
2021 |
url |
http://hdl.handle.net/10453/147249 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_relation |
Marine Ecology Progress Series 10.3354/meps13538 Marine Ecology Progress Series, 2020, 656, pp. 51-64 0171-8630 1616-1599 http://hdl.handle.net/10453/147249 |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1766162035137052672 |