Linking water quality impacts and benefits of ecosystem services in the Great Barrier Reef

Valck, Jeremy De; Rolfe, John

doi:10.1016/j.marpolbul.2018.03.017

Cited by 24 publications

(15 citation statements)

References 55 publications

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“…Additionally, the P. acuta colonies within the mangroves lacked a core microbiome and only a few members of the bacterial assemblage exceeded 5% average relative abundance. Compared to the oligotrophic and often stable conditions of tropical reefs, mangrove environments are highly heterogeneous, with dynamic physiochemical shifts, and impacts from higher nutrient loads and organic content ( Huxham et al, 2010 ; Camp et al, 2017 ; De Valck and Rolfe, 2018 ). These more heterogenous conditions likely favour a more diverse microbial community that would conceivably harbour greater responsiveness to changing environmental conditions than a microbiome dominated by only a few species ( Roder et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

“…Extreme fluctuations over diel and tidal cycles at Woody Isles ( Camp et al, 2019 ) and other mangrove lagoon systems ( Camp et al, 2017 ), as well as the enriched nutrient conditions present in mangrove environments compared to adjacent reefs ( De Valck and Rolfe, 2018 ), are likely underlying factors for the profound changes observed in reef-mangrove P. acuta associated bacterial communities. Coral microbiomes can be altered by shifting environmental conditions such as nutrient availability ( Zaneveld et al, 2016 ; Ziegler et al, 2019 ), temperature ( Wang et al, 2018 ; Gardner et al, 2019 ), pH ( Webster et al, 2016 ; Grottoli et al, 2018 ), and salinity ( Röthig et al, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

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Rapid Shifts in Bacterial Communities and Homogeneity of Symbiodiniaceae in Colonies of Pocillopora acuta Transplanted Between Reef and Mangrove Environments

et al. 2021

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It has been proposed that an effective approach for predicting whether and how reef-forming corals persist under future climate change is to examine populations thriving in present day extreme environments, such as mangrove lagoons, where water temperatures can exceed those of reef environments by more than 3°C, pH levels are more acidic (pH < 7.9, often below 7.6) and O2 concentrations are regularly considered hypoxic (<2 mg/L). Defining the physiological features of these “extreme” corals, as well as their relationships with the, often symbiotic, organisms within their microbiome, could increase our understanding of how corals will persist into the future. To better understand coral-microbe relationships that potentially underpin coral persistence within extreme mangrove environments, we therefore conducted a 9-month reciprocal transplant experiment, whereby specimens of the coral Pocillopora acuta were transplanted between adjacent mangrove and reef sites on the northern Great Barrier Reef. Bacterial communities associated with P. acuta specimens native to the reef environment were dominated by Endozoicomonas, while Symbiodiniaceae communities were dominated by members of the Cladocopium genus. In contrast, P. acuta colonies native to the mangrove site exhibited highly diverse bacterial communities with no dominating members, and Symbiodiniaceae communities dominated by Durusdinium. All corals survived for 9 months after being transplanted from reef-to-mangrove, mangrove-to-reef environments (as well as control within environment transplants), and during this time there were significant changes in the bacterial communities, but not in the Symbiodiniaceae communities or their photo-physiological functioning. In reef-to-mangrove transplanted corals, there were varied, but sometimes rapid shifts in the associated bacterial communities, including a loss of “core” bacterial members after 9 months where coral bacterial communities began to resemble those of the native mangrove corals. Bacterial communities associated with mangrove-to-reef P. acuta colonies also changed from their original composition, but remained different to the native reef corals. Our data demonstrates that P. acuta associated bacterial communities are strongly influenced by changes in environmental conditions, whereas Symbiodiniaceae associated communities remain highly stable.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Rapid Shifts in Bacterial Communities and Homogeneity of Symbiodiniaceae in Colonies of Pocillopora acuta Transplanted Between Reef and Mangrove Environments

et al. 2021

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“…W-SAL is influenced by freshwater supply from many rivers [8], sea tides, and seawater inundation, water salinity (0 -25 ppt) [9], and water flux sediment [10], [11]. W-SAL is known as water pollution resources [12], [13], hydrocarbon source [14], area of carbon conservation [15], fish habitat [16], ecosystem services area [17], and coastal disaster areas [3].…”

Section: Introductionmentioning

confidence: 99%

The Sedimentation Impact for the Lagoon and Mangrove Stabilization

et al. 2021

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Sedimentation causes land accretion, silting river water, lagoon, and mangrove degradation. The current study aims to analyze the potential and the impact of sedimentation toward the potential of the lagoon and mangrove ecosystem in Segara Anakan Lagoon. The research methods used mapping analysis, total suspended solid analysis (TSS), sedimentation rate analysis, biodiversity analysis, and mangrove covering. The result showed that (1) the value of TSS between 0.25-1,16 g L-1 (2) sediment flux between 6,8 - 257,7 g m-2s-1 (3) annual rate of sedimentation in West Segara Anakan Lagoon (W-SAL) between 13.82 – 15.49 m yr-1. (4) The effects of sedimentation were (a) the remaining lagoon of West Segara Anakan Lagoon (W-SAL) which was 1.200 ha, (b) land accretion in W-SAL between 27.24 – 160.18 m (1994 – 2003) and 20.91 – 107.55 m (2003 2014), (c) the remaining mangrove of SAL less than 2594 ha (d) the mangrove diversity ranged between 0.48 – 1.71 (low – moderate), (e) the mangrove density of trees were 46 - 205 trees ha-1 (degraded) (5) mangrove landscape was developed to reduce the impact of sedimentation, especially the first zone of mangrove landscaping was dominated by Aegiceras Floridum, Avicennia Alba, Avicennia Marina, Sonneratia Caseolaris, and Sonneratia alba.

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“…In this case, research partners from Aotearoa NZ universities, research institutes, Māori consultancies and charitable trusts, government agencies, ministries, and private enterprises were mobilised to look more closely at how to undertake CE management in Aotearoa NZ. The Australian case study (GBRMP) illustrates a primarily reactive rather than proactive CE approach, where significant efforts have been made in recent years to address CE as a result of several crises that have focussed more attention on the degradation of the reef (e.g., McCook, 1999;De'ath et al, 2012;Ainsworth et al, 2016), as well as the economic and cultural effects of degradation (De Valck and Rolfe, 2018;Marshall et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Trans-Tasman Cumulative Effects Management: A Comparative Study

et al. 2020

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Managing the cumulative effects (CE) that arise from human and natural stressors is one of the most urgent and complex problems facing coastal and marine decision makers today. In the absence of effective processes, models, and political will, decisionmakers struggle to implement management strategies that effectively tackle cumulative effects. Emerging efforts to address cumulative effects provide a timely opportunity to assess the efficacy of a range of management strategies operating at different scales and in different legislative and cultural contexts. Using primarily qualitative methodologies including literature reviews, focus groups, and workshops, this paper compares cumulative effects approaches within the Reef 2050 Plan for the Great Barrier Reef Marine Park (GBRMP), Australia, with those in Aotearoa New Zealand (Aotearoa NZ). Both case studies illustrate that cumulative effects management is especially complicated by: fragmented legislative regimes and institutions that cannot account for cross-scale or cross-sector interactions; chronic data scarcity and high levels of uncertainty that make system-based assessments and predictions challenging; and often conflicting societal and economic expectations, values, and rights that are poorly integrated into management decision-making. By considering how these two cases align with transformational change characteristics, we draw several conclusions and establish priority actions regarding (1) how to mobilise resources and political will to address CE, (2) how to deal with data scarcity and uncertainty, and (3) how to promote comprehensive and inclusive CE management of coastal and marine areas.

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Linking water quality impacts and benefits of ecosystem services in the Great Barrier Reef

Cited by 24 publications

References 55 publications

Rapid Shifts in Bacterial Communities and Homogeneity of Symbiodiniaceae in Colonies of Pocillopora acuta Transplanted Between Reef and Mangrove Environments

Rapid Shifts in Bacterial Communities and Homogeneity of Symbiodiniaceae in Colonies of Pocillopora acuta Transplanted Between Reef and Mangrove Environments

The Sedimentation Impact for the Lagoon and Mangrove Stabilization

Trans-Tasman Cumulative Effects Management: A Comparative Study

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