Chinese Science Bulletin (Chinese Version), Journal Year: 2023, Volume and Issue: 68(22), P. 2961 - 2972
Published: April 14, 2023
Language: Английский
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 357, P. 120744 - 120744
Published: March 28, 2024
Restoration of coastal ecosystems, particularly those dominated by seagrasses, has become a priority to recover the important ecosystem services they provide. However, assessing restoration outcomes as success or failure remains still difficult, probably due unique features seagrass species and wide portfolio practices used on transplanting actions. Here, several traits (maximum leaf length, number leaves, growth rate per shoot, elemental carbon nitrogen contents) transplanted Posidonia oceanica were compared reference meadows in five sites Western Mediterranean Sea which completed different times. Results have evidenced resilience P. shoots within few years since restoration, between treatments changed depending elapsed time settlement. The highlighted stability effect suggests that recovery plants is expected four after transplanting.
Language: Английский
Citations
5
Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11
Published: Feb. 15, 2024
Introduction The transplantation of seagrass fragments with shoots and rhizomes is the most common method for ecological restoration damaged meadows. Methods aim this study was to explore effects exogenous addition (10 mg per month 3 months) three commonly used plant growth regulators (PGRs), including indoleacetic acid (IAA), gibberellin (GA3), paclobutrazol (PP333) on physiology transplanted Thalassia hemprichii (TTFs), without rhizome apex (RA), using a simulation test. [Results] IAA GA3 elevated photosynthetic capacity rate TTF leaves but did not significantly alter leaf length width. In contrast, PP333 reduced rate, while greatly increasing width root viability. Additionally, treatment led an increase in antioxidant enzyme activities (peroxidase [POD], superoxide dismutase [SOD], catalase [CAT]), as well malondialdehyde (MDA) total phenol contents TTFs, indicating some stress seagrass. Furthermore, decreased soluble sugar protein increased starch content tissues, whereas both nonstructural carbohydrate contents. presence RA positively affected T. compared TTFs RA. There significant interaction between PGRs chlorophyll fluorescence variables, pigment (p < 0.05). Discussion This provides guidelines application during
Language: Английский
Citations
4
Environmental Science & Policy, Journal Year: 2024, Volume and Issue: 158, P. 103800 - 103800
Published: June 3, 2024
Ecosystems globally are becoming increasingly degraded necessitating conservation and repair. Alongside restoration of natural habitats, eco-engineering can mitigate the negative impacts urban seascapes by co-designing marine-built structures for nature as well humans. The application to marine built is supported over two decades research demonstrating efficacy this approach in enhancing biodiversity but there remain few examples interventions moving beyond experimental- large-scale (10–100 s m) long-term (decadal) implementation. Using lessons learned from Sydney Harbour, Australia, we outline six key steps that facilitate experimental larger scale retrofitted interventions. These are: (1) identifying ecological problem most tractable solutions; (2) engaging with stakeholders, (3) obtaining approvals, (4) establishing demonstration sites illustrate stakeholders practicality benefits solution, (5) building an evidence base (6) scaling up supply. Our framework draws on learnings Living Seawalls project, extensive small-scale experimentation led it. initiative grew out Harbour has now been applied across Australia globally. also other existing projects (e.g. Ecostructure, Blue Cube) frameworks Greening Grey, International Guidelines Natural Nature-Based Features Flood Risk Management) developed elsewhere. This work provides a template which scientists policy makers, managers, effect positive environmental change.
Language: Английский
Citations
4
Restoration Ecology, Journal Year: 2025, Volume and Issue: unknown
Published: March 25, 2025
Seagrass loss is impacting coastal communities globally, and significant efforts are being spent to address this through restoration. Yet, the success of restoration projects methodologies has rarely been assessed over decades. In case study, we reviewed past continuing seagrass (66 sites from 1990s 2020s) in Cockburn Sound Owen Anchorage, temperate Western Australia, (1) whether they were successful rehabilitating seagrasses, (2) seagrasses could be restored at appropriate scales, (3) what requirements for were. 2022, 28 individual revisited establish long‐term success. Methods included shoots (as sprigs, plugs, cores, sods), seedlings, seeds. Approximately 70% 2022 showed demonstrable restoring seagrasses. Project extent ranged meters hectare including a study that 3 ha using sprigs. 2010s, seed‐based research became major scales. Pre‐existing environmental conditions processes extremely important determining success, which was both site‐and time‐specific influenced choice methods. Restoration required environment suitable natural revegetation, or it needed modification. Researchers' focus on small‐scale experiments testing methods across range environments prepared us scaling up hectares. long‐lived decades hysteresis overcome with restoration, as assisted recovery.
Language: Английский
Citations
0
The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 976, P. 179325 - 179325
Published: April 8, 2025
Language: Английский
Citations
0
Restoration Ecology, Journal Year: 2023, Volume and Issue: 31(7)
Published: May 22, 2023
The extent of seagrasses has declined globally, with restoration through transplantation seen as an important tool for reversing population loss, yet studies African seagrass species are scarce. This study investigated the use different planting patterns (straight‐line, compact, and star) core sizes (11, 18, 25 cm Ø) in transplanting ecotypes (intertidal subtidal) predominantly open Knysna temporarily closed Klein Brak estuaries South Africa. Cores endangered seagrass, Zostera capensis , were transplanted two experimental repeats per ecotype size along transects to investigate survival plants post‐transplant. No significant differences observed among sizes, patterns, or Estuary, but cores compact pattern had better rates Estuary. Holes left by smallest donor sites recovered faster sediment deposition compared larger holes. Our demonstrated that Africa is challenging due limited suitable habitats strong environmental variability estuarine ecosystems. It careful consideration, including genomic diversity structure, well ecological similarity between recipient populations must be made each site when assessing its potential. Effective “no‐take bait zones” upstream catchment management will protecting potential meadows.
Language: Английский
Citations
10
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 904, P. 166706 - 166706
Published: Aug. 31, 2023
Coastal ecosystems are becoming increasingly threatened by human activities and there is growing appreciation that management must consider the impacts of multiple stressors. Cumulative effects assessments (CEAs) have become a popular tool for identifying distribution intensity stressors in coastal ecosystems. Few studies, however, demonstrated strong correlations between CEAs change ecosystem condition, questioning its use. Here, we apply CEA to endangered seagrass Posidonia australis Pittwater, NSW, Australia, using spatial data on known related foreshore development, water quality, vessel traffic fishing. We tested how well cumulative scores explained changes P. extent measured 2005 2019 high-resolution aerial imagery. A negative correlation estimated was observed (R2 = 22 %), identified threshold above which losses became more likely. Using baited remote underwater video, surveyed fishes over non-vegetated sediments infer quantify would flow fish assemblages. contained distinct assemblage fish, abundance sparids, importance fisheries, increased with closer proximity australis. Our results demonstrate impact consequences biodiversity fisheries production across much estuary. Management actions aimed at reducing or limiting low moderate levels will help conserve associated productivity.
Language: Английский
Citations
9
Ocean & Coastal Management, Journal Year: 2022, Volume and Issue: 231, P. 106403 - 106403
Published: Oct. 28, 2022
Language: Английский
Citations
14
Marine Pollution Bulletin, Journal Year: 2022, Volume and Issue: 179, P. 113683 - 113683
Published: May 7, 2022
Language: Английский
Citations
13
Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2022, Volume and Issue: 33(1), P. 56 - 69
Published: Dec. 13, 2022
Abstract Although it is well established that human activities are linked to the loss of seagrasses worldwide, influence anthropogenic disturbances on habitat fragmentation seagrass meadows less understood. This information essential identify how humans modifying seascapes and what pose greatest risk seagrasses, which pertinent given rapid urbanization occurring in coastal areas. study examined an endangered Posidonia australis varied relation several (i.e. population, marine infrastructure, terrestrial run‐off catchment land‐usage) within 10 estuaries across 620 km coastline New South Wales, Australia. When comparing between estuaries, P. was significantly greater adjacent highly populated metropolitan centres – generally Greater Sydney region. At sites density boat moorings most important predictor fragmentation, but there also evidence higher with increased numbers jetties oyster aquaculture leases. These results suggest will become more pervasive as population continues grow estuarine development increases. Strategies mitigate meadow could include prohibiting construction other artificial structures areas where present or promoting environmentally friendly designs for infrastructure. knowledge support ongoing management actions attempting balance conservation seagrasses.
Language: Английский
Citations
13