Ontogenetic change in the lipid and fatty acid composition of scleractinian coral larvae

Figueiredo, Joana; Baird, Andrew H.; Cohen, Michael S.; Flot, Jean‐François; Kamiki, Takayuki; Méziane, Tarik; Tsuchiya, Makoto; Yamasaki, Hideo

doi:10.1007/s00338-012-0874-3

Cited by 78 publications

(74 citation statements)

References 41 publications

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“…1). A decrease in the content of wax esters during PLD has been documented for broadcast-spawning and brooding corals (Harii et al 2007;Figueiredo et al 2012) and has been related to buoyancy decrease during PLD (Harii et al 2007). Our results show an opposite trend that could be explained by a different composition of stored lipid in C. rubrum planulae, such as triacylglycerols, which are denser than seawater (Lee et al 2006;Harii et al 2007).…”

Section: Larval Traits Driving Connectivitycontrasting

confidence: 73%

Quantification of larval traits driving connectivity: the case of Corallium rubrum (L. 1758)

et al. 2014

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larvae to quantify their free fall speeds, swimming activity frequency and swimming speeds. The experiment was repeated under different light conditions and at different larval ages. PLD ranged from 16 days (95 % survival) to 42 days (5 % survival). Larvae exhibited negative buoyancy with a free fall speed decreasing linearly with age, at a velocity varying from −0.09 ± 0.026 cm s −1 on day 1 to −0.05 ± 0.026 cm s −1 on day 10. No significant difference was found either in the activity frequency or in the mean swim velocities during active periods for age (up to 12 days old) or under different light conditions. C. rubrum larvae maintained active swimming behavior for 82 % of the time. This activity frequency was combined with age-varying free fall periods in the motility behavior model extrapolated up to 15 days old, resulting in a mean upward speed that increased from 0.045 cm s −1 (day 1) to 0.056 cm s −1 (day 15). This larval motility behavior, combined with the extended PLD, confers on C. rubrum larvae an unsuspectedly high dispersive potential in open waters.

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Section: Larval Traits Driving Connectivitycontrasting

confidence: 73%

Quantification of larval traits driving connectivity: the case of Corallium rubrum (L. 1758)

et al. 2014

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“…, Figueiredo et al. ). Our analyses suggest that this occurs relatively abruptly, with little or no deterioration in the capacity to retain competence for the first 2 months after spawning in our study species.…”

Section: Discussionmentioning

confidence: 96%

High‐frequency sampling and piecewise models reshape dispersal kernels of a common reef coral

Moneghetti

Figueiredo

Baird

et al. 2019

Ecology

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Models of dispersal potential are required to predict connectivity between populations of sessile organisms. However, to date, such models do not allow for time‐varying rates of acquisition and loss of competence to settle and metamorphose, and permit only a limited range of possible survivorship curves. We collect high‐resolution observations of coral larval survival and metamorphosis, and apply a piecewise modeling approach that incorporates a broad range of temporally varying rates of mortality and loss of competence. Our analysis identified marked changes in competence loss and mortality rates, the timing of which implicates developmental failure and depletion of energy reserves. Asymmetric demographic rates suggest more intermediate‐range dispersal, less local retention, and less long‐distance dispersal than predicted by previously employed non‐piecewise models. Because vital rates are likely temporally asymmetric, at least for nonfeeding broadcast‐spawned larvae, piecewise analysis of demographic rates will likely yield more reliable predictions of dispersal potential.

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“…The presence of vertically transmitted symbionts in P. damicornis larvae buffer the energetic demands of dispersal (Arai et al, 1993;Harii et al, 2010;Lee et al, 2006); indeed aposymbiotic coral larvae consume about twice as much WE during their first week than do symbiotic larvae (Figueiredo et al, 2012;Harii et al, 2010). Because symbionts provide the means by which larvae can replenish or maintain their maternally-derived lipid reserves, symbiont abundance with respect to changes in WE in larvae may provide important insight into the vulnerability of larvae to future demands on their energy budgets.…”

Section: Responses Of Larval Lipid Content and Other Biological Parammentioning

confidence: 97%

Effects of temperature and pCO 2 on lipid use and biological parameters of planulae of Pocillopora damicornis

Rivest

Hofmann

2015

Journal of Experimental Marine Biology and Ecology

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Keywords:Ocean acidification Ocean warming Coral larvae Lipid Wax esterThe successful dispersal and recruitment of coral larvae depend on endogenous energy stores that fuel swimming, the search for optimal habitat, and metamorphosis. Ocean acidification and warming threaten to disrupt this critical process within the life cycle of reef-building corals by increasing maintenance costs in the energy budgets of larvae. In this study, lipid utilization and biological parameters of planula larvae of the cauliflower coral Pocillopora damicornis under future ocean conditions were examined using manipulative CO 2 experiments. For the first 24 h following their release, planulae were cultured in seawater controlled to mimic a future ocean scenario (1030 μatm pCO 2 , 30.7°C) as well as present-day, ambient ocean conditions (475 μatm pCO 2 , 28.1°C; confirmed by autonomous sensors deployed at our study site). Abundance of wax ester, triacylglycerol, and phospholipids as well as traits of physiological status were measured before and after incubations. High temperature and pCO 2 conditions did not elicit changes in wax ester composition of larvae. Triacylglycerol content increased with temperature but was not sensitive to pCO 2 . In general, larvae consumed more total lipid and protein in response to conditions of warming but not high pCO 2 , and the day the larvae were released often played a large role in the biological patterns observed. Our results suggest that future ocean warming may influence some organismal properties of coral larvae. High pCO 2 may not have a strong effect on the physiology of this early life history stage.

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Ontogenetic change in the lipid and fatty acid composition of scleractinian coral larvae

Cited by 78 publications

References 41 publications

Quantification of larval traits driving connectivity: the case of Corallium rubrum (L. 1758)

Quantification of larval traits driving connectivity: the case of Corallium rubrum (L. 1758)

High‐frequency sampling and piecewise models reshape dispersal kernels of a common reef coral

Effects of temperature and pCO 2 on lipid use and biological parameters of planulae of Pocillopora damicornis

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