Colony self-shading facilitates Symbiodiniaceae cohabitation in a South Pacific coral community

Lewis, Robert E.; Davy, Simon K.; Gardner, Stephanie G.; Rongo, Teina; Suggett, David J.; Nitschke, Matthew R.

doi:10.1007/s00338-022-02292-1

Cited by 4 publications

(3 citation statements)

References 106 publications

(118 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high ITS2 type pro le variance found across all coral groups was perhaps somewhat surprising, assuming a highly connected population 70 . Future work expanding the number of samples taken per colony would help resolve whether any intra-colony variance in major ITS2 type pro les explain the variance found here 71 . In contrast, high homogeneity in major ITS2 type pro les was reported on the same species in the same location (Mojo reef) in February 2020 (i.e.…”

Section: Biological Responses To Nursery Propagationmentioning

confidence: 91%

Multiple trait approach to inform ecosystem service value of corals propagated for restoration on the Great Barrier Reef

Lendo,

Camp,

Edmondson

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

Coral propagation- and planting-based reef restoration practices are accelerating globally, yet short-term “success” continues to be measured as broad metrics of coral survival and growth, even though goals are often centred on recovering broad ecosystem service values. As such, how restoration activities may impact healthy reef functioning remains uncertain. For example, trade-offs in resource acquisition and partitioning that potentially regulate growth vs survival may yield very different outcomes towards factors governing reef biogeochemical cycles. Here we considered a proof-of-concept “multi-trait” approach to capture how a broader range of functional traits reflect the expression of growth and survival for a key coral species (Acropora cf. hyacinthus) — impacted by recent mass bleaching events — propagated for restoration activities on the Great Barrier Reef (GBR), Australia. We examined a diverse array of bio-physical, bio-chemical, and skeletal traits (n = 91 traits) for wild (donor) colonies and their nursery-derived fragments from a 12-month growth period (Opal Reef, northern GBR). Nursery corals grew 20-25 times faster than their donor (wild) colonies, but both exhibited similar survivorship. Faster growth within nurseries was accompanied by more pigmented colonies (darker-coloured and with more symbionts), and higher photosynthesis, respiration, and calcification rates. However, despite these metabolic changes, biogeochemical properties of the nursery and reef corals (carbohydrates, lipids, proteins, elemental stoichiometry, and skeletal properties) remained largely the same after 12 months, suggesting the bio-energetic value to trophic transfer as well as the structural rigour of corals was unaltered by nursery propagation. Thus, a “multi-trait” approach enables more informed evaluation as to how propagation activities impact diverse ecosystem service values, highlighting the immense importance of this knowledge in choosing coral individuals for restoration. Our example provides confidence to practitioners that key ecosystem service attributes of native corals are largely retained through an intermediate nursery growth phase that can accelerate coral biomass gains.

show abstract

Section: Biological Responses To Nursery Propagationmentioning

confidence: 91%

Multiple trait approach to inform ecosystem service value of corals propagated for restoration on the Great Barrier Reef

Lendo,

Camp,

Edmondson

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…branching corolla). The acquisition of the emergent features of larger corolla is likely to be important for creating microenvironments suitable for a diverse range of algal symbionts (van Oppen & Medina, 2020; Lewis et al ., 2022). The fundamental ways through which the shape of small corals interacts with moving sea water differs from that of large colonies (Patterson, 1992 a , b ; Gardella & Edmunds, 2001), and flow‐mediated processes [e.g.…”

Section: Biology Of Coral Recruitsmentioning

confidence: 99%

Coral recruitment: patterns and processes determining the dynamics of coral populations

Edmunds

2023

Biological Reviews

View full text Add to dashboard Cite

Coral recruitment describes the addition of new individuals to populations, and it is one of the most fundamental demographic processes contributing to population size. As many coral reefs around the world have experienced large declines in coral cover and abundance, there has been great interest in understanding the factors causing coral recruitment to vary and the conditions under which it can support community resilience. While progress in these areas is being facilitated by technological and scientific advances, one of the best tools to quantify recruitment remains the humble settlement tile, variants of which have been in use for over a century. Here I review the biology and ecology of coral recruits and the recruitment process, largely as resolved through the use of settlement tiles, by: (i) defining how the terms ‘recruit’ and ‘recruitment’ have been used, and explaining why loose terminology has impeded scientific advancement; (ii) describing how coral recruitment is measured and why settlement tiles have value for this purpose; (iii) summarizing previous efforts to review quantitative analyses of coral recruitment; (iv) describing advances from hypothesis‐driven studies in determining how refuges, seawater flow, and grazers can modulate coral recruitment; (v) reviewing the biology of small corals (i.e. recruits) to understand better how they respond to environmental conditions; and (vi) updating a quantitative compilation of coral recruitment studies extending from 1974 to present, thus revealing long‐term global declines in density of recruits, juxtaposed with apparent resilience to coral bleaching. Finally, I review future directions in the study of coral recruitment, and highlight the need to expand studies to deliver taxonomic resolution, and explain why time series of settlement tile deployments are likely to remain pivotal in quantifying coral recruitment.

show abstract

“…However, studies on E. gemmacea are mainly focused on the cells and oocytes in the process of cryopreservation [29,30]. To date, we know that both Cladocopium and Durusdinium exist within the Symbiodiniaceae community of E. gemmacea [31]. Therefore, the objective of this study is to explore the differences in the Symbiodiniaceae and bacterial communities in E. gemmacea across various environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

The Symbiodiniaceae and Bacterial Dynamic Composition of the Coral Echinopora gemmacea on Wuzhizhou Island

Li,

Zhu

et al. 2023

JMSE

View full text Add to dashboard Cite

Coral’s susceptibility to bleaching is determined by the strength of the intricate mutual relationships among coral symbionts. However, there is limited knowledge about how the symbiotic members of the scleractinian coral Echinopora gemmacea respond to changes in their surrounding environmental conditions. In this study, we conducted a survey of seawater characteristics in the south and north zones of Wuzhizhou (WZZ) Island, measured symbiotic microalgal density and chlorophyll-a content in the corals, and performed metabarcoding of the Symbiodiniaceae and bacteria communities within coral tissue. Our findings demonstrated that the seawater in the north zone of WZZ Island had higher levels of turbidity, temperature, salinity, and dissolved oxygen content compared to the south zone. This indicated that the corals in the two zones were subjected to distinctive environmental conditions. Analysis of the Symbiodiniaceae composition revealed that Cladocopium sp. C1 and Cladocopium sp. C17 were the dominant species in the southern E. gemmacea, whereas Durusdinium sp. D1a and Cladocopium sp. C17 prevailed in the northern E. gemmacea. Consequently, symbiotic microalgal density and chlorophyll-a content were diminished in the northern E. gemmacea. Furthermore, correlation network analysis revealed the presence of intricate bacterial interactions that potentially mediate coral’s adaptation to environmental stress. This study provides insights into the differences in symbiotic members, including Symbiodiniaceae and bacteria, within E. gemmacea, and contributes to fundamental knowledge for coral conservation efforts.

show abstract

Colony self-shading facilitates Symbiodiniaceae cohabitation in a South Pacific coral community

Cited by 4 publications

References 106 publications

Multiple trait approach to inform ecosystem service value of corals propagated for restoration on the Great Barrier Reef

Multiple trait approach to inform ecosystem service value of corals propagated for restoration on the Great Barrier Reef

Coral recruitment: patterns and processes determining the dynamics of coral populations

The Symbiodiniaceae and Bacterial Dynamic Composition of the Coral Echinopora gemmacea on Wuzhizhou Island

Contact Info

Product

Resources

About