Understanding the seagrass‐sediment‐light feedback to guide restoration planning: a case study using Zostera muelleri DOI Creative Commons
Oliver Dalby, Rhys A. Coleman, Yi Mei Tan

и другие.

Restoration Ecology, Год журнала: 2023, Номер 31(8)

Опубликована: Окт. 24, 2023

Seagrass ecosystems are ecologically important but declining worldwide, prompting restoration efforts. However, success is partially reliant on ensuring that donor material and planting methods suitable under the environmental conditions expected within sites. This may require at critical densities needed to initiate favorable feedbacks, plants pre‐adapted local conditions, setting realistic goals. An understanding of relationship between (e.g. light environment seagrass structural complexity) can be particularly in guiding decision‐making. Here, we investigate how sediment‐light interact with complexity (density above‐ground morphology) guide approaches for intertidal Zostera muelleri . Using generalized additive models empirical data, identified significant relationships Z. meadows present Western Port, Victoria, southeast Australia. We found a decrease shoot density leaf length decreasing availability, potentially reflective an adaptive change species morphology response low‐light environments. also sediment sorting increased fine particles increasing meadow complexity, suggesting increases stability, accretion, contribute water clarity via ecological feedbacks. These findings suggest both drivers potential feedbacks occur before large‐scale begins targets should reflect form most likely present.

Язык: Английский

Feedback between sediment and light for seagrass: Where is it important? DOI Open Access
Matthew Adams, Renae Hovey, Matthew R. Hipsey

и другие.

Limnology and Oceanography, Год журнала: 2016, Номер 61(6), С. 1937 - 1955

Опубликована: Июнь 24, 2016

A feedback between seagrass presence, suspended sediment and benthic light can induce bistability two ecosystem states: one where the presence of reduces concentrations to increase availability thereby favoring growth, another absence increases turbidity reducing growth. This literature review identifies (1) how environmental meadow characteristics influence strength direction (stabilizing or destabilizing) seagrass-sediment-light feedback, (2) this has been incorporated in models proposed support decision making. Large, dense meadows shallow subtidal, non-eutrophic systems, growing sediments mixed grain size subject higher velocity flows, have greatest potential generate via feedback. Conversely, low density, area height enhance turbulent flows that interact with seabed, causing water clarity decline. Using a published field experiment as case study, we show only if sufficient attenuation properties. The considered very few models. These identify areas occurs, which is information assist spatial prioritization conservation restoration efforts. In present predicted, recovery may be difficult once lost. bare predicted (without bistability) better targets for than predicted.

Язык: Английский

Процитировано

108
What-if nature-based storm buffers on mitigating coastal erosion DOI Creative Commons
Wei Chen, Joanna Staneva, Benjamin G. Jacob

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 928, С. 172247 - 172247

Опубликована: Апрель 9, 2024

Creating ecosystem buffers in intertidal zones, such as seagrass meadows, has gained increasing attention a nature-based solution for mitigating storm-driven coastal erosion. This study presents what-if scenarios using an integrated model framework to determine the effectiveness and strategies planting reduce The comprises two levels of simulation packages. first level is regional-scale coupled hydrodynamic that simulates processes specific storm provides boundary forces morphodynamic XBeach apply at next level, which nearshore morphological evolution. applied open coast Norderney German Bight North Sea. We demonstrate optimising location size meadows crucial increase efficiency onshore sediment erosion mitigation. For depth range, depending on storm's intensity, most significant reduction may not be achieved by starting meadow permits largest size. To maintain protection effect, density stem height should considered together, ensuring least 80 % compared unprotected coast. valuable insights design implementation transplantation solution, highlighting importance considering location, size, density, when protection.

Язык: Английский

Процитировано

10
Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods DOI Open Access
Sylvain Ouillon

Water, Год журнала: 2018, Номер 10(4), С. 390 - 390

Опубликована: Март 27, 2018

Scientific research on sediment dynamics in the coastal zone and along littoral has evolved considerably over last four decades. It benefits from a technological revolution that provides community with cheaper or free tools for situ study (e.g., sensors, gliders), remote sensing (satellite data, video cameras, drones) modelling (open source models). These changes favour transfer of developed methods to monitoring management services. On other hand, scientific is increasingly targeted by public authorities towards finalized studies relation societal issues. Shoreline vulnerability an object concern grows after each marine submersion intense erosion event. Thus, during decades, production knowledge considerably, tune needs society. This editorial aims at synthesizing current related hydrosedimentary dynamics, putting into perspective connections between coasts geomorphological entities concerned transport, showing links many fragmented approaches topic, introducing papers published special issue Water “Sediment transport waters”.

Язык: Английский

Процитировано

81
Characterizing natural riparian vegetation for modeling of flow and suspended sediment transport DOI
Kaisa Västilä, Juha Järvelä

Journal of Soils and Sediments, Год журнала: 2017, Номер 18(10), С. 3114 - 3130

Опубликована: Июль 18, 2017

Язык: Английский

Процитировано

71
Canopy Accumulation: Are Seagrass Meadows a Sink of Microplastics? DOI Creative Commons
Richard K. F. Unsworth,

A. J. Higgs,

Bettina Walter

и другие.

Oceans, Год журнала: 2021, Номер 2(1), С. 162 - 178

Опубликована: Фев. 12, 2021

A growing body of research is documenting the accumulation microplastics within marine sediments around world. The hydrodynamic influences seagrasses in coastal environments are shown to increase sedimentation finer particles and as a result there has been speculation that this attribute will lead seagrass meadows acting site elevated microplastic contamination. To date range localised studies have provided conflicting answers hypothesis. Seagrass provide multiple ecosystem services including vital support roles for fisheries; therefore, considerable human health implications understanding their role sinks microplastics. This investigated abundance diversity present temperate North Atlantic meadow relative unvegetated examined how they correlate with structure sediment type. We also placed data context current knowledge through global meta-analysis published data. Eight adjacent sites UK were sampled test sediment. Microplastics found 98% samples, fibres making up 91.8% all identified. Abundance was recorded overall be 215 ± 163 (MP) kg−1 Dry Weight (DW) 221 236 MP DW habitats. There no significant differences between number respect vegetation. report evidence almost ubiquitous contamination both globally but find reflects general build-up wider environment rather than becoming concentrated an enhanced sink. Microplastic build hypothesised local hydrodynamics plastic sources habitat level concentration. Although not higher seagrass, such cause concern given high dependency many species fish on these types potential plastics move food chain.

Язык: Английский

Процитировано

44
A Digital Twin modelling framework for the assessment of seagrass Nature Based Solutions against storm surges DOI Creative Commons

Umesh Pranavam Ayyappan Pillai,

Nadia Pinardi, Jacopo Alessandri

и другие.

The Science of The Total Environment, Год журнала: 2022, Номер 847, С. 157603 - 157603

Опубликована: Июль 25, 2022

In this paper we demonstrate a novel framework for assessing nature-based solutions (NBSs) in coastal zones using new suite of numerical models that provide virtual "replica" the natural environment. We design experiments use Digital Twin strategy to establish wave, sea level and current attenuation due seagrass NBSs. This modelling allows us answer "what if" scenario questions such as: (i) are indigenous meadows able reduce energy storm surges, if so how? (ii) what best types their landscaping optimal wave attenuation? An important result study is show seagrasses an choice does not directly attenuate but amplitudes. reveals link between NBS components disruptive potential surges (waves level) opens up avenues future studies.

Язык: Английский

Процитировано

39
Spatial distribution of anthropogenic particles and microplastics in a meso-tidal lagoon (Arcachon Bay, France): A multi-compartment approach DOI Creative Commons
Charlotte Lefebvre, Florane Le Bihanic, Isabel Jalón‐Rojas

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 898, С. 165460 - 165460

Опубликована: Июль 16, 2023

Язык: Английский

Процитировано

14
Are flow-vegetation interactions well represented by mimics? A case study of mangrove pneumatophores DOI
Erik Horstman, Karin R. Bryan, Julia C. Mullarney

и другие.

Advances in Water Resources, Год журнала: 2017, Номер 111, С. 360 - 371

Опубликована: Дек. 2, 2017

Язык: Английский

Процитировано

42
Role of eelgrass on bed‐load transport and sediment resuspension under oscillatory flow DOI Creative Commons
Beatriz Marin‐Diaz, Tjeerd J. Bouma, Eduardo Infantes

и другие.

Limnology and Oceanography, Год журнала: 2019, Номер 65(2), С. 426 - 436

Опубликована: Сен. 16, 2019

Abstract Coastal vegetation is widely attributed to stabilize sediment. While most studies focused on how canopy causes flow reduction and thereby affects sediment dynamics, the role of roots rhizomes stabilizing surface has been less well studied. This study aims quantify interactions between above‐ belowground biomass eelgrass (i.e., living Zostera marina plants mimics) with erosion bed load suspended load), under different hydrodynamic forcing that was created using a wave flume. Belowground played an important preventing bed‐load erosion, by roughly halving amount transported after being exposed maximal orbital velocities 27 cm s −1 , without canopy. Surprisingly, for transport, we found opposite effects. In presence eelgrass, critical threshold started at lower than bare sediment, including sand mud treatments. Moreover, in muddy systems, such resuspension reduced light level below minimum requirement Z. . surprising result ascribed too small patch reducing waves but rather showing enhanced turbulence scouring meadow edges. Overall, conclude conservation existent meadows developed stabilization scale should be taken into account decrease resuspension.

Язык: Английский

Процитировано

36
Hydrodynamics across seagrass meadows and its impacts on Indonesian coastal ecosystems: A review DOI Creative Commons
Johan Risandi, Husen Rifai, Kevin Muhamad Lukman

и другие.

Frontiers in Earth Science, Год журнала: 2023, Номер 11

Опубликована: Фев. 9, 2023

Seagrass canopies are important components of the world’s coastal environments providing critical ecological services. Nearshore hydrodynamics, i.e., waves and currents, essential in controlling processes across environments. meadows can impose more complex hydrodynamics by attenuating sea-swell decreasing impact nearshore mean water level rise due to wave setup Infragravity (IG) waves. Consequently, seagrasses dissipate reduce flows allowing sediments settle accrete shorelines. However, despite their significant roles, knowledge Indonesian seagrass ecosystems is relatively limited compared other such as sandy beaches, mangroves, coral reefs. This review highlights dynamics interaction with sediment transport processes, including biogeochemical dispersal on ecosystem contributing existing research Indonesia. The associated literature collected from scientific databases Scopus Google Scholar that range between 1965 2021. result showed most hydrodynamic was carried out temperate zones. Until recently, there have been publications discussing (tropical) parameters, even though region has abundant species. Moreover, Indonesia strongly influenced various atmospheric-oceanic forcing, Asian monsoon affecting dynamic area ecosystems. At a canopy scale, correlation system yet be explored. Considering potential benefit ecosystems, developing future overcoming gaps gained could support services resilience hazards climate change.

Язык: Английский

Процитировано

13