151
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Wang Y, Jiao M, Li T, Li R, Liu B. Role of mangrove forest in interception of microplastics (MPs): Challenges, progress, and prospects. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130636. [PMID: 37056008 DOI: 10.1016/j.jhazmat.2022.130636] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/04/2022] [Accepted: 12/18/2022] [Indexed: 06/19/2023]
Abstract
Mangroves receive microplastics (MPs) from terrestrial, marine and atmospheric sources, acting as a huge filter for environmental MPs between land and sea. Due to the high primary production and complex hydrodynamic conditions in mangroves, MPs are extensively intercepted in various ways while flowing through mangroves, leading to a long-standing but fiercely increasing MPs accumulation. However, current researches mainly focused on the occurrence, source and fate of MPs pollution in mangroves, ignoring the role of mangrove forests in the interception of MPs. Our study firstly demonstrates that mangrove ecosystems have significantly greater MPs interception capacity than their surrounding environments. Then, the current status of studies related to the interception of MPs in mangrove ecosystems is comprehensively reviewed, with the main focus on the interception process and mechanisms. At last, the most pressing shortcomings of current research are highlighted regarding the intercepted flux, interception mechanisms, retention time and ecological risks of MPs in mangrove ecosystems and the relevant future perspectives are provided. This review is expected to emphasize the critical role of mangrove forests in the interception of MPs and provide the foundational knowledge for evaluating the MPs interception effect of mangrove forests globally.
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Affiliation(s)
- Yijin Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Meng Jiao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| | - Beibei Liu
- Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
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152
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Jia FC, Wang WJ, Liu LH, Li JJ, Huang AP, Zhang J, Fu YC, Yu Y. Derivation of new resistance principle on flow-induced morphological response of flexible vegetation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:31561-31582. [PMID: 36449238 DOI: 10.1007/s11356-022-24237-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/12/2022] [Indexed: 06/17/2023]
Abstract
Water flow under vegetated environments is a noteworthy research topic in environmental hydraulics and restoration ecology, and this research is particularly important for maintaining water transport and streambed stability in water ecosystems. The calculation of the resistance coefficient in vegetated water flow is the core of this research. But there are still problems such as complex expressions and low simulation accuracy in this research field. To solve this scientific problem, this research, based on the theoretical study of environmental hydraulics and genetic algorithm, selected three basic parameters of vegetation submergence, resistance length and curvature degree, and successfully constructed the formula for calculating the resistance coefficient for flexible vegetated flow by using a wide range of data sets. New quantitative relationship between the drag coefficient and the relative roughness of flexible vegetation was established in this study. The formula of drag coefficients for flexible vegetation conditions has a more concise form and can be successfully applied to both flexible and rigid vegetation. As flexible vegetation is deformed under the action of water flow, and the quantitative expressions of Vogel number and relative roughness are given quantitatively through the analysis of its physical properties. Overall, this study improves the basic theoretical study of vegetated flow in environmental fluid dynamics and provides scientific theoretical support for vegetation restoration.
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Affiliation(s)
- Feng-Cong Jia
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
- College of Water Resources & Civil Engineering, China Agricultural University, Beijing, 100083, China
| | - Wei-Jie Wang
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China.
| | - Ling-Hua Liu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Jin-Jin Li
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Ai-Ping Huang
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Jing Zhang
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Yi-Cheng Fu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
| | - Yang Yu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
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153
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Wu H, Hou J, Wang X. A review of microplastic pollution in aquaculture: Sources, effects, removal strategies and prospects. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 252:114567. [PMID: 36706522 DOI: 10.1016/j.ecoenv.2023.114567] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/07/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
As microplastic pollution has become an emerging environmental issue of global concern, microplastics in aquaculture have become a research hotspot. For environmental safety, economic efficiency and food safety considerations, a comprehensive understanding of microplastic pollution in aquaculture is necessary. This review outlines an overview of sources and effects of microplastics in aquaculture. External environmental inputs and aquaculture processes are sources of microplastics in aquaculture. Microplastics may release harmful additives and adsorb pollutants in aquaculture environment, cause deterioration of aquaculture environment, as well as cause toxicological effects, affect the behavior, growth and reproduction of aquaculture products, ultimately reducing the economic benefits of aquaculture. Microplastics entering the human body through aquaculture products also pose potential health risks at multiple levels. Microplastic pollution removal strategies used in aquaculture in various countries are also reviewed. Ecological interception and purification are considered to be effective methods. In addition, strengthening aquaculture management and improving fishing gear and packaging are also currently feasible solutions. As proactive measures, new portable microplastic monitoring system and remote sensing technology are considered to have broad application prospects. And it was encouraged to comprehensively strengthen the supervision of microplastic pollution in aquaculture through talent exchange and strengthening the construction of laws and regulations.
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Affiliation(s)
- Haodi Wu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Jing Hou
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Xiangke Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
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154
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Ligorini V, Crayol E, Huneau F, Garel E, Malet N, Garrido M, Simon L, Cecchi P, Pasqualini V. Small Mediterranean coastal Lagoons Under Threat: Hydro-ecological Disturbances and Local Anthropogenic Pressures (Size Matters). ESTUARIES AND COASTS : JOURNAL OF THE ESTUARINE RESEARCH FEDERATION 2023:1-24. [PMID: 37362863 PMCID: PMC9970120 DOI: 10.1007/s12237-023-01182-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/20/2023] [Accepted: 01/27/2023] [Indexed: 06/28/2023]
Abstract
Mediterranean coastal lagoons are affected by multiple threats (demographic pressures, eutrophication, climate change) expected to increase in the future and impact the ecosystem services provided. Conservation norms and scientific studies usually focus on large lagoons (> 0.5 km2) due to their economic importance, while they ignore smaller lagoons. These are poorly understood and often unprotected, despite their prevalence within the Mediterranean region and their importance. Qualitative and quantitative characterisation of small lagoons, in terms of functioning and sensitivity to global and local changes, are needed to develop appropriate management strategies. For this purpose, this work provides the first inventory of all Corsican lagoons and has investigated three of them of small size (Arasu, Santa Giulia, Balistra), characterised by contrasting anthropogenic contexts (highly modified/disturbed, medium disturbance, quasi-pristine). At the regional level, 91 of the 95 lagoons identified are < 0.5 km2, making Corsica a good example for the study of small Mediterranean lagoons. The three case studies showed differences in their seasonal biogeochemical cycles and phytoplankton communities (biomass, diversity, photosynthetic efficiency). Arasu and Santa Giulia lagoons showed an increase in watershed urbanisation (+ 12% and + 6% in 30 years), high phytoplankton biomass, low diversity and blooms of potentially harmful dinoflagellates. Conversely, Balistra lagoon showed a good status overall, but some anthropogenic pollution sources within its watershed. This study demonstrates the importance of small lagoons at regional and Mediterranean scale, and provides knowledge on studied local sites but also potential applications elsewhere. The importance of an integrated approach considering lagoons within their adjacent connected systems (watershed and sea) and anthropogenic contexts is highlighted. Supplementary Information The online version contains supplementary material available at 10.1007/s12237-023-01182-1.
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Affiliation(s)
- Viviana Ligorini
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UAR 3514 Stella Mare, Cordon Lagunaire de la Marana, lieu-dit U Casone, Biguglia, 20620 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
| | - Eléa Crayol
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
| | - Frédéric Huneau
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
| | - Emilie Garel
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
| | - Nathalie Malet
- Ifremer, Laboratoire Environnement Ressources Provence-Azur-Corse (LER/PAC), Implantation de Bastia, Z.I. Furiani, Immeuble Agostini, Bastia, 20600 France
| | - Marie Garrido
- Environmental Agency of Corsica, 14 Avenue Jean Nicoli, Corte, 20250 France
| | - Louise Simon
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UAR 3514 Stella Mare, Cordon Lagunaire de la Marana, lieu-dit U Casone, Biguglia, 20620 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
| | - Philippe Cecchi
- MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Vanina Pasqualini
- Université de Corse Pascal Paoli, Campus Grimaldi, Corte, BP52, 20250 France
- CNRS, UAR 3514 Stella Mare, Cordon Lagunaire de la Marana, lieu-dit U Casone, Biguglia, 20620 France
- CNRS, UMR 6134 SPE, BP 52, Corte, 20250 France
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155
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Zhao Q, Huang H, Costello MJ, Chu J. Climate change projections show shrinking deep-water ecosystems with implications for biodiversity and aquaculture in the Northwest Pacific. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160505. [PMID: 36470391 DOI: 10.1016/j.scitotenv.2022.160505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/14/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The increased availability of environmental data with depth deriving from remote-sensing-based datasets permits more comprehensive modelling of the distribution of marine ecosystems in space and time. This research tests the potential of such objective modelling of marine ecosystems in four dimensions, spatial and temporal, to provide projections of how climate change may affect biodiversity, including aquaculture. This approach could be replicated for any regional seas. The Bohai Sea, Yellow Sea, and East China Sea (BYECS) are marginal seas in the Northwest Pacific bounded by China, Korea, and Japan. Despite providing important ecological and economic services, their ecological conditions and ecosystems distribution have not yet been systematically mapped. This analysis used 13 marine environmental variables, measured on a three-dimensional and monthly basis during 1993-2019, to classify and map the BYECS region by k-means clustering using cosine similarity as distance function. There were 13 distinct areas identified that fit the definition of "ecosystems" that is, enduring regions demarcated by environmental characteristics. Of these 13 ecosystems, the Yellow Sea Cold Water (YSCW) Ecosystem is significant in relation to seasonal species composition and the newly developing deep-sea salmon caging aquaculture in the region. Projections of the potential size of this water mass under various climate-change scenarios based on analysis using the Non-Parametric Probabilistic Ecological Niche (NPPEN) model show that its volume may decrease 31 %-66 % in the future. Such a decrease would have impacts on the seasonal species' abundances in the BYECS marginal sea region and threaten the deep-sea cold-water salmon farming.
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Affiliation(s)
- Qianshuo Zhao
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China.
| | - Huimin Huang
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
| | - Mark John Costello
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China; Faculty of Biosciences and Aquaculture, Nord University, Bobo 8049, Norway
| | - Jiansong Chu
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
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156
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Andriolo U, Gonçalves G. Impacts of a massive beach music festival on a coastal ecosystem - A showcase in Portugal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160733. [PMID: 36481146 DOI: 10.1016/j.scitotenv.2022.160733] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Beach music festivals are numerous and popular worldwide. The concerns about the environmental sustainability of these events have been increasing among scientists, coastal managers and local communities. Nevertheless, the negative effects of beach music festivals on the coastal environment have been poorly studied. This work identified, analysed and discussed the eco-geomorphological impacts of a massive beach music festival held on a Portuguese beach-dune system over three days in July 2022. Drone-based orthophotos and pictures collected in the field were analysed to evaluate the impact of pre- and post-festival works, which turned the beach into a construction site over about twenty days. Digital Surface Model (DSM) analysis showed that beach configuration was approximately restored to the pre-festival configuration after the event. In contrast, the comparison of Normalized Difference Vegetation Index (NDVI) maps revealed that 18,500 m2 of embryonic dune vegetation, which represented 35 % of the existing plant community, was removed by works on the beach and by trampling of festival attendees. To authors' knowledge, this is the first work that evaluates the eco-geomorphological impact of a massive beach music festival on the delicate coastal ecosystem. Overall, it contributes in raising awareness for making these events more respectful of the coastal environment.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
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157
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Lammers C, van de Ven CN, van der Heide T, Reijers VC. Are Ecosystem Engineering Traits Fixed or Flexible: A Study on Clonal Expansion Strategies in Co-occurring Dune Grasses. Ecosystems 2023. [DOI: 10.1007/s10021-023-00826-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
AbstractMany vegetated coastal ecosystems are formed through ecosystem engineering by clonal vegetation. Recent work highlights that the spatial shoot organization of the vegetation determines local sediment accretion and subsequently emerging landscape morphology. While this key engineering trait has been found to differ between species and prevailing environmental conditions, it remains unknown how the interplay of both factors drive shoot organization and therefore landscape morphology. Here, we compared the spatial shoot organization of young, clonally expanding plants of the two dominant European dune grass species: sand couch (Elytrigia juncea) and marram grass (Ammophila arenaria) across a range of coastal dune environments (from Denmark to France). Our results reveal that, on average, sand couch deployed a more dispersed shoot organization than marram grass, which has a patchy (Lévy-like) organization. Whereas sand couch exhibited the same expansion strategy independent of environmental conditions, marram grass demonstrated a large intraspecific variation which correlated to soil organic matter, temperature and grain size. Shoot patterns ranged from a clumped organization correlating to relatively high soil organic matter contents, temperature and small grain sizes, to a patchy configuration with intermediate conditions, and a dispersed organization with low soil organic matter, temperature and large grain size. We conclude that marram grass is flexible in adjusting its engineering capacity in response to environmental conditions, while sand couch instead follows a fixed expansion strategy, illustrating that shoot organization results from the interaction of both species-specific and environmental-specific trait expression.
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158
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Ximenes AC, Cavanaugh KC, Arvor D, Murdiyarso D, Thomas N, Arcoverde GFB, Bispo PDC, Van der Stocken T. A comparison of global mangrove maps: Assessing spatial and bioclimatic discrepancies at poleward range limits. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 860:160380. [PMID: 36427711 PMCID: PMC9834704 DOI: 10.1016/j.scitotenv.2022.160380] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/18/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Mangrove distribution maps are used for a variety of applications, ranging from estimates of mangrove extent, deforestation rates, quantify carbon stocks, to modelling response to climate change. There are multiple mangrove distribution datasets, which were derived from different remote sensing data and classification methods, and so there are some discrepancies among these datasets, especially with respect to the locations of their range limits. We investigate the latitudinal discrepancies in poleward mangrove range limits represented by these datasets and how these differences translate climatologically considering factors known to control mangrove distributions. We compare four widely used global mangrove distribution maps - the World Atlas of Mangroves, the World Atlas of Mangroves 2, the Global Distribution of Mangroves, the Global Mangrove Watch. We examine differences in climate among 21 range limit positions by analysing a set of bioclimatic variables that have been commonly related to the distribution of mangroves. Global mangrove maps show important discrepancies in the position of poleward range limits. Latitudinal differences between mangrove range limits in the datasets exceed 5°, 7° and 10° in western North America, western Australia and northern West Africa, respectively. In some range limit areas, such as Japan, discrepancies in the position of mangrove range limits in different datasets correspond to differences exceeding 600 mm in annual precipitation and > 10 °C in the minimum temperature of the coldest month. We conclude that dissimilarities in mapping mangrove range limits in different parts of the world can jeopardise inferences of climatic thresholds. We expect that global mapping efforts should prioritise the position of range limits with greater accuracy, ideally combining data from field-based surveys and very high-resolution remote sensing data. An accurate representation of range limits will contribute to better predicting mangrove range dynamics and shifts in response to climate change.
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Affiliation(s)
- Arimatéa C Ximenes
- Center for International Forestry Research (CIFOR), Jl., Situgede, Bogor 16115, Indonesia.
| | - Kyle C Cavanaugh
- Department of Geography, University of California Los Angeles, Los Angeles, USA
| | - Damien Arvor
- CNRS, UMR 6554 LETG, Université Rennes 2, 35043, Rennes, France
| | - Daniel Murdiyarso
- Center for International Forestry Research (CIFOR), Jl., Situgede, Bogor 16115, Indonesia; Department of Geophysics and Meteorology, IPB University, Bogor 16680, Indonesia
| | - Nathan Thomas
- Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, USA; Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | | | - Polyanna da Conceição Bispo
- Department of Geography, School of Environment, Education and Development, University of Manchester, Oxford Rd, Manchester M13 9PL, UK
| | - Tom Van der Stocken
- Laboratory of Plant Biology and Nature Management, Ecology & Biodiversity, Vrije Universiteit Brussel, Brussels, Belgium
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159
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Faunal engineering stimulates landscape-scale accretion in southeastern US salt marshes. Nat Commun 2023; 14:881. [PMID: 36797251 PMCID: PMC9935860 DOI: 10.1038/s41467-023-36444-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 01/26/2023] [Indexed: 02/18/2023] Open
Abstract
The fate of coastal ecosystems depends on their ability to keep pace with sea-level rise-yet projections of accretion widely ignore effects of engineering fauna. Here, we quantify effects of the mussel, Geukensia demissa, on southeastern US saltmarsh accretion. Multi-season and -tidal stage surveys, in combination with field experiments, reveal that deposition is 2.8-10.7-times greater on mussel aggregations than any other marsh location. Our Delft-3D-BIVALVES model further predicts that mussels drive substantial changes to both the magnitude (±<0.1 cm·yr-1) and spatial patterning of accretion at marsh domain scales. We explore the validity of model predictions with a multi-year creekshed mussel manipulation of >200,000 mussels and find that this faunal engineer drives far greater changes to relative marsh accretion rates than predicted (±>0.4 cm·yr-1). Thus, we highlight an urgent need for empirical, experimental, and modeling work to resolve the importance of faunal engineers in directly and indirectly modifying the persistence of coastal ecosystems globally.
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160
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Hu M, Sardans J, Yan R, Wu H, Ni R, Peñuelas J, Tong C. Substantial increase in P release following conversion of coastal wetlands to aquaculture ponds from altered kinetic exchange and resupply capacity. WATER RESEARCH 2023; 230:119586. [PMID: 36638741 DOI: 10.1016/j.watres.2023.119586] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/27/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
The reclamation of wetlands and its subsequent conversion to aquaculture may alter regional nutrient (im)mobilization and cycling, although direct assessments of phosphorus (P) cycling and its budget balance following wetland conversion are currently scarce. Here, parallel field experiments were conducted to investigate and compare the availability and mobilization mechanisms of P from natural coastal wetlands and the adjacent converted aquaculture ponds based on high-resolution diffusive gradient in thin films (DGT) and dialysis (HR-Peeper) techniques and the DGT-induced fluxes in sediments (DIFS) model. The study found that the conversion of wetland to pond strongly reduced the sediment P pool by changing its forms and distribution. High-resolution data showed that concentrations of labile P and soluble reactive P across the sediment-water profiles were markedly enhanced by the converted aquaculture pond, although they exhibited large spatiotemporal heterogeneity. Moreover, the synchronous distribution of labile P, iron (Fe) and sulfur (S) across profiles in coastal wetlands indicated that the dissolution of Fe (III) oxyhydroxide-phosphate complexes coupled with sulfate reduction were the main mechanisms regulating sediment P mobilization in coastal areas. However, the converted aquaculture pond weakened or even reversed this dependence by decoupling the Fe-S-P reactions by changing the sediment structure and nutrient balance. Substantial increases in labile P, Fe and S fluxes in the pond suggested the conversion of wetland to aquaculture facilitated the internal release of P, Fe and S from sediment into water. The high resupply parameter (R) and desorption rate (k-1) combined with low response time (Tc) in the pond, as fitted by DIFS model, indicated the strong resupply capacity and fast kinetic exchange of sediment P across the sediment-water interface, which is consistent with the high P diffusion fluxes recorded in the pond. It was concluded that converted aquaculture ponds act as an important source of P release in coastal areas, potentially exacerbating water quality degradation and eutrophication. Specific initiatives and actions are therefore urgently needed to alleviate the internal P-loading during aquaculture.
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Affiliation(s)
- Minjie Hu
- Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China; Wetland Ecosystem Research Station of Minjiang Estuary, National Forestry and Grassland Administration, Fuzhou 350215, China.
| | - Jordi Sardans
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Vallès, 08193 Barcelona, Catalonia, Spain; Nonlinear Analysis and Applied Mathematics (NAAM)-Research Group, Department of Mathematics. Faculty of Science. King Abdulaziz University, P.O. Box 80257, Jeddah 21589 Saudi Arabia
| | - Ruibing Yan
- School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Hui Wu
- School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Ranxu Ni
- School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Josep Peñuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Vallès, 08193 Barcelona, Catalonia, Spain
| | - Chuan Tong
- Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China; Wetland Ecosystem Research Station of Minjiang Estuary, National Forestry and Grassland Administration, Fuzhou 350215, China.
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161
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Canepuccia AD, Fanjul MS, Iribarne OO. Global distribution and richness of terrestrial mammals in tidal marshes. DIVERS DISTRIB 2023. [DOI: 10.1111/ddi.13683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Affiliation(s)
- Alejandro D. Canepuccia
- Instituto de Investigaciones Marinas y Costeras (IIMyC) Universidad Nacional de Mar Del Plata (UNMDP) ‐ Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Mar del Plata Argentina
| | - María Sol Fanjul
- Instituto de Investigaciones Marinas y Costeras (IIMyC) Universidad Nacional de Mar Del Plata (UNMDP) ‐ Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Mar del Plata Argentina
| | - Oscar O. Iribarne
- Instituto de Investigaciones Marinas y Costeras (IIMyC) Universidad Nacional de Mar Del Plata (UNMDP) ‐ Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Mar del Plata Argentina
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162
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Yao Q, Liu KB, Rodrigues E, Fan D, Cohen M. A palynological record of mangrove biogeography, coastal geomorphological change, and prehistoric human activities from Cedar Keys, Florida, U.S.A. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160189. [PMID: 36395834 DOI: 10.1016/j.scitotenv.2022.160189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Under the continuous warming trend in the 21st century, mangroves are likely to migrate into more temperate regions in North and South America. However, the biogeography of different mangrove species is still unclear, especially near their latitudinal range limits in the two continents. This study utilizes palynological, geochemical, and sedimentological analyses to record changes in the coastal morphology and vegetation during the Holocene in Cedar Keys, Florida, the mangrove sub-range limit in North America. The multi-proxy dataset indicates that the milder winters during the Medieval Climate Anomaly likely facilitated the establishment of mangroves in the study region, where Avicennia, Laguncularia, and Rhizophora were established in the ~12th (790-850 cal yr BP), ~14th (580-660 cal yr BP), and ~ 16th century (440-460 cal yr BP), respectively. Thus, the Medieval Climate Anomaly likely triggered the poleward mangrove migration in North and South America synchronously. Moreover, the multi-proxy dataset also documents the obliteration of the Woodland Culture near Cedar Keys, where a once-thriving native civilization on Seahorse Key was driven out by the European colonizers, who settled on the mainland and Atsena Otie Key. Over time, the relict sites of the Woodland people on Seahorse Key were covered by mangroves and marsh vegetation since the ~16th century. Overall, our dataset suggests that industrial-era warming may have intensified the poleward mangrove expansion, although this trend had started earlier during the Medieval Climate Anomaly.
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Affiliation(s)
- Qiang Yao
- Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, United States of America
| | - Kam-Biu Liu
- Department of Oceanography and Coastal Sciences and Coastal Studies Institute, Louisiana State University, Baton Rouge, LA 70803, United States of America
| | - Erika Rodrigues
- Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, United States of America; Institute of Geosciences, University of São Paulo, São Paulo, Brazil
| | - Daidu Fan
- School of Ocean and Earth Science, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Marcelo Cohen
- Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, United States of America; Graduate Program of Geology and Geochemistry, Federal University of Pará, Av. Perimentral 2651, Terra Firme, 66077-530 Belém, PA, Brazil.
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163
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Wen L, Glasby TM, Hughes MG. The race for space: Modelling the landward migration of coastal wetlands under sea level rise at regional scale. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160483. [PMID: 36435254 DOI: 10.1016/j.scitotenv.2022.160483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Globally, sea-level rise (SLR) is a major environmental challenge for coastal ecosystems. Of particular concern are the impacts on intertidal wetlands, the loss of which would have detrimental consequences for both human and ecological communities. On the south-east Australian coast, case studies suggest that the future of intertidal wetlands will greatly depend on landward migration as surface accretion may not keep up with the predicted SLR in many estuaries. However, due to differences in geomorphological settings and land-use, estuaries vary in their capacity to accommodate lateral migration. Regional scale assessment of the lateral accommodation space is therefore critical for pre-emptive planning to conserve these valuable coastal ecosystems. In this study, we analysed wetland lateral accommodation space distribution within 110 estuaries under three SLR scenarios and three land management options on the New South Wales coast, south-east Australia. From the wetland distribution predictions, we calculated and mapped the lateral accommodation space in each estuary associated with each sea level and land use scenario. We further investigated the relationships between wetland migration capacity, intertidal hypsometry represented by elevation skewness, and estuary type within a Bayesian analysis framework. Our results showed that while a few large riverine estuaries dominated the state's total accommodation space, saline wetlands were at risk of disappearing from most intermittently closed-open estuaries if they cannot vertically accrete at the pace of SLR. These distinct responses to SLR are due to different elevation distributions. Furthermore, our assessment of land use adaptation options suggested that the promotion of landward migration without impairing other important ecosystems could be achieved by making low intensity land uses available within several riverine estuaries and barrier (open entrance) estuaries. Through identifying migration opportunities and barriers, the findings of the study could support regional scale adaptation strategies to ensure the sustainability of wetland-associated ecosystem goods and services.
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Affiliation(s)
- Li Wen
- NSW Department of Planning Industry and Environment, Science Economics and Insights Division, Australia.
| | - Tim M Glasby
- NSW Department of Primary Industry (Fisheries), Australia
| | - Michael G Hughes
- NSW Department of Planning Industry and Environment, Science Economics and Insights Division, Australia
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164
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Zhi L, Li X, Bai J, Shao D, Cui B, Mu Y, Ma T, Xie X, Bilal H, Abdullahi U. Seawall-induced impacts on large river delta wetlands and blue carbon storage under sea level rise. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:159891. [PMID: 36334663 DOI: 10.1016/j.scitotenv.2022.159891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/17/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Coastal wetlands have been enclosed by thousands of kilometers of seawalls in China to obtain extra land for rapid socio-economic development in the coastal region. Although understanding seawall-induced impacts on delta wetlands and their ecosystem can provide valuable decision-making information to support coastal management, quantifying and measuring long-term, cumulative ecological impacts of harden seawall under sea level rise (SLR) remains a vital research gap. In this study, by combining the land-use transformation trajectory analysis, ecosystem services assessment, and the SLAMM (Sea Level Affecting Marshes Model), we have explored the seawall-induced effects on temporal-spatial dynamics of tidal wetlands and the Coastal Blue Carbon storage (CBCs) in the Yellow River Delta (YRD) under the SLR by 2050 and 2100. Our study revealed that the delta wetland area would have increased by 2327.87 km2 after seawall removal without regard for SLR while increasing by 3050 km2 in 2100 in both seawall scenarios under SLR. The effects of driving processes trajectory on the changes in CBCs indicated two-sided seawall-induced impacts on the delta wetlands in the YRD, i.e., functioning as a physical coastal defense to prevent coastal erosion (before 2050) while intensifying coastal squeeze effects and quickening the loss in delta wetlands and the CBCs by hindering their inland migration under SLR. For example, the gap of CBCs between the seawall-impacting and seawall-removal scenarios would have reached at 9.94 × 106 Mg by 2050 under the SLR, and the magnitude of the final decrease effect on CBCs induced by the seawall-impacting would be nearly 5 times higher than its gain after seawall-removal in the regressive succession, while the same magnitudes in the salinization process on both scenarios. Our study has provided valuable insights for shoreline management by mitigating seawall-induced impacts on the delta wetlands and their ecosystem services such as CBCs.
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Affiliation(s)
- Liehui Zhi
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China; Hebei University of Engineering, Taiji Road No.19, Handan 056038, China
| | - Xiaowen Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China.
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China.
| | - Dongdong Shao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
| | - Baoshan Cui
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
| | - Yonglin Mu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
| | - Tiantian Ma
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31 Fukang Road, Nankai District, Tianjin 300191, China
| | - Xu Xie
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
| | - Hazrat Bilal
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
| | - Usman Abdullahi
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Xinjiekouwai Street No. 19, Beijing 100875, China
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165
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Du J, Zhang F, Du J, Wang Z, Ren X, Yao Z. Source and sequestration of sediment organic carbon from different elevation zones in estuarine wetland, North China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160253. [PMID: 36402310 DOI: 10.1016/j.scitotenv.2022.160253] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/27/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Estuarine wetland plays an important role in regulating global carbon cycle due to high terrestrial carbon input and burial. However, it is unclear how the source and sequestration of sediment organic carbon (SOC) in estuarine wetlands changes under the anthropogenic impact in the past century. In this study, combining parameters of TOC/TN ratios, δ13C, δ15N and 210Pb-chronology, temporal trends of SOC source and sequestration flux in Liaohe estuarine wetland were studied. The results showed that the source of organic carbon in Liaohe estuarine wetland was dominated by terrestrial input (contribution >60 %). Due to vegetation, TOC in shallow reed marsh was significantly higher than that of bare beach and subtidal flat. Affected by elevation, the sediment mass accumulation rate (MAR, kg·m-2·yr-1) showed differences in reed marsh (C1), bare beach (C2) and subtidal flat (C3), which were 6.57, 13.56 and 13.25 respectively in the past century. MAR fluctuated over time, it showed an overall increasing trend, especially since the 1980s. Correspondingly, the sequestration flux of SOC (SF-SOC, g·m-2·yr-1) showed an overall increasing trend with average of 82.84 (reed marsh), 151.93 (bare beach) and 123.71 (subtidal flat). Comparing to TOC, the higher MAR had a more distinct effect on carbon sequestration in Liaohe estuarine wetland. The difference in sedimentation rate and carbon sequestration are linked to the changes in sediment flux of riverine input and land utilization in the catchment area due to human activities in recent decades, including the construction of reservoirs, dams and local ditch wharf.
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Affiliation(s)
- Jinqiu Du
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, PR China; National Marine Environmental Monitoring Center, Dalian 116023, PR China
| | - Fenfen Zhang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, PR China
| | - Jinzhou Du
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, PR China.
| | - Zhen Wang
- National Marine Environmental Monitoring Center, Dalian 116023, PR China
| | - Xu Ren
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, PR China
| | - Ziwei Yao
- National Marine Environmental Monitoring Center, Dalian 116023, PR China
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166
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Carrasco AR, Kombiadou K, Matias A. Short-term sedimentation dynamics in mesotidal marshes. Sci Rep 2023; 13:1921. [PMID: 36732596 PMCID: PMC9895031 DOI: 10.1038/s41598-022-26708-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/19/2022] [Indexed: 02/04/2023] Open
Abstract
One of the key questions about wetlands resilience to sea-level rise is whether sediment supply will be enough to keep them coping with growing inundation levels. To address this question, researchers have put a lot of effort into field data collection and ecogeomorphic modelling, in an attempt to identify the tipping points of marsh survival. This study uses fieldwork data to characterize the sediment fluxes between the tidal flats and salt marshes, in the Ria Formosa lagoon (Portugal). Sediment fluxes were measured from the tidal channel towards the mid-upper marsh, during neap and spring tide conditions. The flow magnitude was measured, and induced transport was determined based on shear velocities. Deposition rates, instantaneous suspended sediment and near-bed velocities were linked through theoretical formulas and used to characterize time-averaged conditions for sediment delivery and deposition to the site. The results showed that suspended sediment concentrations and sediment deposition varied across the transect with no specific relation to elevation. Maximum water depths were recorded in the vegetated tidal flat, and the maximum currents were flood dominated, in the order of 0.20 m/s, in the low marsh due to flow-plant interactions and an increase of turbulence. Deposition rates ranged between 20 to 45 g/m2/hr, after a complete tidal cycle, and were higher in the mid-upper marsh. Hydroperiod was not the main contributor to sediment deposition in the study area. Sediment transport was tidally driven, strongly two-dimension during the cycle, and highly influenced by the vegetation. Measurements of marsh sediment flux obtained in our work are diverse from the ones found in the literature and evidence the importance of considering spatio-temporal variability of vegetated platforms in assessing overall marsh bed level changes.
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Affiliation(s)
- A. Rita Carrasco
- grid.7157.40000 0000 9693 350XCentre for Marine and Environmental Research (CIMA), University of Algarve, Campus of Gambelas, 8005-139, Faro, Portugal
| | - Katerina Kombiadou
- grid.7157.40000 0000 9693 350XCentre for Marine and Environmental Research (CIMA), University of Algarve, Campus of Gambelas, 8005-139, Faro, Portugal
| | - Ana Matias
- grid.7157.40000 0000 9693 350XCentre for Marine and Environmental Research (CIMA), University of Algarve, Campus of Gambelas, 8005-139, Faro, Portugal
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167
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Smith RS, Cheng SL, Castorani MCN. Meta-analysis of ecosystem services associated with oyster restoration. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2023; 37:e13966. [PMID: 35686509 PMCID: PMC10087230 DOI: 10.1111/cobi.13966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/03/2022] [Accepted: 05/30/2022] [Indexed: 04/13/2023]
Abstract
Restoration of foundation species promises to reverse environmental degradation and return lost ecosystem services, but a lack of standardized evaluation across projects limits understanding of recovery, especially in marine systems. Oyster reefs are restored to reverse massive global declines and reclaim valuable ecosystem services, but the success of these projects has not been systematically and comprehensively quantified. We synthesized data on ecosystem services associated with oyster restoration from 245 pairs of restored and degraded reefs and 136 pairs of restored and reference reefs across 3500 km of U.S. Gulf of Mexico and Atlantic coastlines. On average, restoration was associated with a 21-fold increase in oyster production (mean log response ratio = 3.08 [95% confidence interval: 2.58-3.58]), 34-97% enhancement of habitat provisioning (mean community abundance = 0.51 [0.41-0.61], mean richness = 0.29 [0.19-0.39], and mean biomass = 0.69 [0.39-0.99]), 54% more nitrogen removal (mean = 0.43 [0.13-0.73]), and 89-95% greater sediment nutrients (mean = 0.67 [0.27-1.07]) and organic matter (mean = 0.64 [0.44-0.84]) relative to degraded habitats. Moreover, restored reefs matched reference reefs for these ecosystem services. Our results support the continued and expanded use of oyster restoration to enhance ecosystem services of degraded coastal systems and match many functions provided by reference reefs.
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Affiliation(s)
- Rachel S Smith
- Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Selina L Cheng
- Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Max C N Castorani
- Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, USA
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168
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Corbau C, Buoninsegni J, Olivo E, Vaccaro C, Nardin W, Simeoni U. Understanding through drone image analysis the interactions between geomorphology, vegetation and marine debris along a sandy spit. MARINE POLLUTION BULLETIN 2023; 187:114515. [PMID: 36580840 DOI: 10.1016/j.marpolbul.2022.114515] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 12/12/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Marine litter (ML) is recognized as one of the main socio-economic and environmental concerns and monitoring operations have been realized worldwide in order to collect information on the types, quantities and distribution of marine debris. In this study, we used Unmanned Aerial Vehicle (UAV) images to map the presence of ML on a coastal spit in relation to geomorphological aspects and vegetation. Our results show that ML is present everywhere, but concentrates in the beach wrack, dunes, and saltmarshes, highlighting the role of the vegetation in trapping ML. Moreover, ML will most probably remain trapped by the saltmarsh vegetation, since they are not visible and easily accessible to allow cleaning operations. On the contrary, cleaning operations may remove the ML present in the beach wrack. Finally, our results provide useful information to support decision-makers for improving beach cleaning activities in the Po river Delta areas (Italy).
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Affiliation(s)
- Corinne Corbau
- University of Ferrara, Ferrara, Italy; HPL - UMCES, Cambridge, MD, USA; CURSA, Roma, Italy.
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169
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Xie M, Qian L, Dong H, Mei W, Fu X, Hu Y, Yan J, Sun Y, Wu P, Chen X, Wang L. The high organic carbon accumulation in estuarine wetlands necessarily does not represent a high CO 2 sequestration capacity. ENVIRONMENT INTERNATIONAL 2023; 172:107762. [PMID: 36689865 DOI: 10.1016/j.envint.2023.107762] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/04/2023] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
Estuarine wetlands with high organic carbon (OC) accumulation rates due to their high plant biomass and interception of tide-derived OC are generally considered as large CO2 sinks. However, our previous study found that tidal OC input seems to stimulate soil CO2 emissions, potentially weakening CO2 sequestration in estuarine wetlands. To further verify this phenomenon, we first established a structural equation model, which confirmed a positive correlation between tidal OC input and soil organic carbon (SOC) and soil respiration. We then performed trace analysis to determine the stability of SOC derived from different sources and its effect on soil CO2 emissions by analyzing the input and retention of OC derived from tides and plants in the Yangtze Estuary wetlands. From upstream to downstream, as tidal OC input decreased, the relative retention ratio of the tidal OC in wetland soil increased from 1.259 to 2.148, whereas the relative retention ratio of plant OC in the soil decreased from 61.5% to 14.8%. Our findings indicated that the degradability of tidal OC was higher upstream than that downstream, but both inhibited plant OC degradation, thus providing an important reason for the higher CO2 emissions upstream of wetlands (with higher tidal OC input). In addition, the primarily contributor to CO2 (δ13) emissions' transforming from plant SOC (81.35%) to tidal SOC (91.18%) was an increase in organic matter input from the tide in a microcosm system. Consequently, a higher CO2 output than CO2 input (plant OC) due to the ready degradation of tidal OC consequently weakens the CO2 sequestration capacity of the estuarine wetlands. This phenomenon is cause for concern regarding the CO2 sink function of estuarine wetlands intercepting large amounts of organic matter.
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Affiliation(s)
- Mengdi Xie
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Liwei Qian
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Research Department of Energy and Eco-Environment, Zhejiang Development & Planning Institute, Hangzhou 310030, China
| | - Haoyu Dong
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Wenxuan Mei
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xiaohua Fu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Yu Hu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Jianfang Yan
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Ying Sun
- Shanghai Jiuduansha Wetland Nature Reserve Management Center, Shanghai 200135, China
| | - Pengfei Wu
- Shanghai Jiuduansha Wetland Nature Reserve Management Center, Shanghai 200135, China
| | - Xiuzhi Chen
- Shanghai Jiuduansha Wetland Nature Reserve Management Center, Shanghai 200135, China
| | - Lei Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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170
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Curd A, Chevalier M, Vasquez M, Boyé A, Firth LB, Marzloff MP, Bricheno LM, Burrows MT, Bush LE, Cordier C, Davies AJ, Green JAM, Hawkins SJ, Lima FP, Meneghesso C, Mieszkowska N, Seabra R, Dubois SF. Applying landscape metrics to species distribution model predictions to characterize internal range structure and associated changes. GLOBAL CHANGE BIOLOGY 2023; 29:631-647. [PMID: 36394183 DOI: 10.1111/gcb.16496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/20/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Distributional shifts in species ranges provide critical evidence of ecological responses to climate change. Assessments of climate-driven changes typically focus on broad-scale range shifts (e.g. poleward or upward), with ecological consequences at regional and local scales commonly overlooked. While these changes are informative for species presenting continuous geographic ranges, many species have discontinuous distributions-both natural (e.g. mountain or coastal species) or human-induced (e.g. species inhabiting fragmented landscapes)-where within-range changes can be significant. Here, we use an ecosystem engineer species (Sabellaria alveolata) with a naturally fragmented distribution as a case study to assess climate-driven changes in within-range occupancy across its entire global distribution. To this end, we applied landscape ecology metrics to outputs from species distribution modelling (SDM) in a novel unified framework. SDM predicted a 27.5% overall increase in the area of potentially suitable habitat under RCP 4.5 by 2050, which taken in isolation would have led to the classification of the species as a climate change winner. SDM further revealed that the latitudinal range is predicted to shrink because of decreased habitat suitability in the equatorward part of the range, not compensated by a poleward expansion. The use of landscape ecology metrics provided additional insights by identifying regions that are predicted to become increasingly fragmented in the future, potentially increasing extirpation risk by jeopardising metapopulation dynamics. This increased range fragmentation could have dramatic consequences for ecosystem structure and functioning. Importantly, the proposed framework-which brings together SDM and landscape metrics-can be widely used to study currently overlooked climate-driven changes in species internal range structure, without requiring detailed empirical knowledge of the modelled species. This approach represents an important advancement beyond predictive envelope approaches and could reveal itself as paramount for managers whose spatial scale of action usually ranges from local to regional.
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Affiliation(s)
- Amelia Curd
- IFREMER, Centre de Bretagne, DYNECO LEBCO, Plouzané, France
| | | | | | - Aurélien Boyé
- IFREMER, Centre de Bretagne, DYNECO LEBCO, Plouzané, France
| | - Louise B Firth
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, UK
| | | | | | - Michael T Burrows
- Scottish Association for Marine Science, Scottish Marine Institute, Oban, UK
| | - Laura E Bush
- FUGRO GB Marine Limited, Gait 8, Research Park South, Heriot-Watt University, Edinburgh, UK
| | - Céline Cordier
- IFREMER, Centre de Bretagne, DYNECO LEBCO, Plouzané, France
| | - Andrew J Davies
- Department of Biological Sciences, University of Rhode Island, Kingston, Rhode Island, USA
- Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island, USA
| | | | - Stephen J Hawkins
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
- The Marine Biological Association of the UK, Citadel Hill, Plymouth, UK
| | - Fernando P Lima
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Campus de Vairão, Vairão, Portugal
| | - Claudia Meneghesso
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Campus de Vairão, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
| | - Nova Mieszkowska
- The Marine Biological Association of the UK, Citadel Hill, Plymouth, UK
- Department of Earth, Ocean and Ecological Sciences, School of Environmental Sciences, University of Liverpool, Liverpool, UK
| | - Rui Seabra
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Vairão, Portugal
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171
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García-Márquez MG, Rodríguez-Castañeda JC, Agawin NSR. Sunscreen exposure interferes with physiological processes while inducing oxidative stress in seagrass Posidonia oceanica (L.) Delile. MARINE POLLUTION BULLETIN 2023; 187:114507. [PMID: 36566514 DOI: 10.1016/j.marpolbul.2022.114507] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
The effects of a commercial sunscreen mixture on the Mediterranean seagrass Posidonia oceanica were investigated, evaluating its response in physiological processes and biochemical indicators of oxidative stress. Short-term laboratory experiments were conducted recreating summer conditions, and two sunscreen concentrations were tested in whole P. oceanica plants placed inside aquaria. Although primary productivity of leaf segments seemed to benefit from sunscreen addition, probably due to inorganic nutrients released, the rest of the biological parameters reflected possible impairments in the overall functioning of P. oceanica as a result of oxidative damages. Chlorophyll production and nitrogen fixation associated with old leaves were inhibited under high sunscreen concentrations, which concurred with elevated reactive oxygen species production, catalase activity and polyphenols content in the seagrass leaves. These results emphasize the importance of directing future investigations on determining which specific components of sunscreen products are likely threatening the wellbeing of critical species, such as P. oceanica.
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Affiliation(s)
| | | | - Nona S R Agawin
- Marine Ecology and Systematics (MarES), Department of Biology, University of the Balearic Islands, Palma de Mallorca, Spain
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172
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Chee SY, Tan ML, Tew YL, Sim YK, Yee JC, Chong AKM. Between the devil and the deep blue sea: Trends, drivers, and impacts of coastal reclamation in Malaysia and way forward. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159889. [PMID: 36328260 DOI: 10.1016/j.scitotenv.2022.159889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Cities all over the world are edging further into the ocean. Coastal reclamation is a global conservation issue with implications for ocean life, ecosystems, and human well-being. Using Malaysia as a case study, the coastal reclamation trends over three decades (1991-2021) were mapped using Landsat images and Normalized Difference Water Index (NDWI) via the Google Earth Engine platform. The changes in drivers and impacts of these coastal expansions throughout the decades were also reviewed. Twelve out of the 14 states in Malaysia had planned, active, or completed reclamations on their shorelines. Between 1991 and 2021, an absolute area of 82.64 km2 has been or will be reclaimed should all the projects be completed. The most reported driver for coastal expansion in Malaysia is for development and modernization (41 %), followed by rise in human population (20 %), monetary gains from the development of prime land (15 %), and agriculture and aquaculture activities (9 %). Drivers such as reduction of construction costs, financial advantage of prime land, oil and gas, advancement of technology, and tourism (Malaysia My Second Home (MM2H)) had only started occurring within the last decade, while others have been documented since the 1990's. Pollution is the most reported impact (24 %) followed by disruption of livelihoods, sources of income and human well-being (21 %), destruction of natural habitats (17 %), decrease in biodiversity (11 %), changes in landscapes (10 %), erosion / accretion (8 %), threat to tourism industry (6 %), and exposure to wave surges (3 %). Of these, changes in landscape, shoreline alignment, seabed contour, and coastal groundwater, as well as wave surges had only started to surface as impacts in the last two decades. Efforts to protect existing natural coastal and marine ecosystems, restore degraded ones, and fund endeavours that emphasize nature is needed to support sustainable development goals for the benefit of future generations.
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Affiliation(s)
- Su Yin Chee
- Centre for Global Sustainability Studies, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Mou Leong Tan
- GeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Yi Lin Tew
- GeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Yee Kwang Sim
- Centre for Marine and Coastal Studies, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Jean Chai Yee
- Centre for Global Sustainability Studies, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Amanda Kar Mun Chong
- Centre for Global Sustainability Studies, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
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173
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Zhao J, Chakrabarti S, Chambers R, Weisenhorn P, Travieso R, Stumpf S, Standen E, Briceno H, Troxler T, Gaiser E, Kominoski J, Dhillon B, Martens-Habbena W. Year-around survey and manipulation experiments reveal differential sensitivities of soil prokaryotic and fungal communities to saltwater intrusion in Florida Everglades wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159865. [PMID: 36461566 DOI: 10.1016/j.scitotenv.2022.159865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 06/17/2023]
Abstract
Global sea-level rise is transforming coastal ecosystems, especially freshwater wetlands, in part due to increased episodic or chronic saltwater exposure, leading to shifts in biogeochemistry, plant- and microbial communities, as well as ecological services. Yet, it is still difficult to predict how soil microbial communities respond to the saltwater exposure because of poorly understood microbial sensitivity within complex wetland soil microbial communities, as well as the high spatial and temporal heterogeneity of wetland soils and saltwater exposure. To address this, we first conducted a two-year survey of microbial community structure and bottom water chemistry in submerged surface soils from 14 wetland sites across the Florida Everglades. We identified ecosystem-specific microbial biomarker taxa primarily associated with variation in salinity. Bacterial, archaeal and fungal community composition differed between freshwater, mangrove, and marine seagrass meadow sites, irrespective of soil type or season. Especially, methanogens, putative denitrifying methanotrophs and sulfate reducers shifted in relative abundance and/or composition between wetland types. Methanogens and putative denitrifying methanotrophs declined in relative abundance from freshwater to marine wetlands, whereas sulfate reducers showed the opposite trend. A four-year experimental simulation of saltwater intrusion in a pristine freshwater site and a previously saltwater-impacted site corroborated the highest sensitivity and relative increase of sulfate reducers, as well as taxon-specific sensitivity of methanogens, in response to continuously pulsing of saltwater treatment. Collectively, these results suggest that besides increased salinity, saltwater-mediated increased sulfate availability leads to displacement of methanogens by sulfate reducers even at low or temporal salt exposure. These changes of microbial composition could affect organic matter degradation pathways in coastal freshwater wetlands exposed to sea-level rise, with potential consequences, such as loss of stored soil organic carbon.
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Affiliation(s)
- Jun Zhao
- Fort Lauderdale Research and Education Center and Department of Microbiology & Cell Science, University of Florida, Davie, FL, USA
| | - Seemanti Chakrabarti
- Fort Lauderdale Research and Education Center and Department of Microbiology & Cell Science, University of Florida, Davie, FL, USA
| | - Randolph Chambers
- College of William and Mary, W.M. Keck Environmental Field Laboratory, P.O. Box 8795, Williamsburg, VA, USA
| | | | - Rafael Travieso
- Institute of Environment, Florida International University, Miami, FL, USA
| | - Sandro Stumpf
- Institute of Environment, Florida International University, Miami, FL, USA
| | - Emily Standen
- Institute of Environment, Florida International University, Miami, FL, USA
| | - Henry Briceno
- Department of Biological Sciences and Institute of Environment, Florida International University, Miami, FL, USA
| | - Tiffany Troxler
- Department of Earth and Environment and Sea Level Solutions Center in the Institute of Environment, Florida International University, Miami, FL, USA
| | - Evelyn Gaiser
- Department of Biological Sciences and Institute of Environment, Florida International University, Miami, FL, USA
| | - John Kominoski
- Department of Biological Sciences and Institute of Environment, Florida International University, Miami, FL, USA
| | - Braham Dhillon
- Fort Lauderdale Research and Education Center and Department of Plant Pathology, University of Florida, Davie, FL, USA
| | - Willm Martens-Habbena
- Fort Lauderdale Research and Education Center and Department of Microbiology & Cell Science, University of Florida, Davie, FL, USA.
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174
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Rock and Plovers—A Drama in Three Acts Involving a Big Musical Event Planned on a Coastal Beach Hosting Threatened Birds of Conservation Concern. CONSERVATION 2023. [DOI: 10.3390/conservation3010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Big musical events often coincide with natural spaces, and therefore they may have an impact on sensitive ecosystems. Here, a story of events that took place following a big event on an Italian beach within a Special Protection Area (SPA; hosting embryonic shifting dunes and plover birds of conservation concern) is reported. Following a theatrical approach to conservation, this story unfolds in three acts (Act I: The Premises; II: On the Field; III: Long-Term Effects) that include the social targets (‘actors’) involved (i.e., the pop star’s staff, ONG, institutions, and local stakeholders) as well as the critical issues and conflicts. This experience provides some conservation lessons: (i) big musical events can have an impact on sensitive socio-ecosystems; (ii) the intrinsic value of coastal ecosystems has been underestimated since the site selection was carried out by decision makers with inaccurate/inappropriate use of digital tools; (iii) communication among the private organizers, public institutions, ONG, and people was poor; (iv) the availability of huge economic resources has made the local municipality vulnerable; (v) digital social processes increased polarization between opposing parties with an increase in local conflicts among Public Agencies; and (vi) these conflicts had long-term cascade effects on the nature reserve’s management. To communicate conservation stories, I encourage conservation practitioners to use a theatrical approach to communicate local events with socio-ecological implications—increasing awareness of human–wildlife conflicts and cognitive bias emerging after unshared decisions—using simplified conceptual frameworks.
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175
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Massey LM, Penna S, Zahn E, Lawson D, Davis CM. Monitoring Green Sea Turtles in the San Gabriel River of Southern California. Animals (Basel) 2023; 13:ani13030434. [PMID: 36766322 PMCID: PMC9913770 DOI: 10.3390/ani13030434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/21/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Effective conservation of endangered species relies on the characterization of habitat use and tracking of long-term population trends, which can be especially challenging for marine species that migrate long distances and utilize a diversity of habitats throughout their lives. Since 2012, citizen science volunteers at the Aquarium of the Pacific in Long Beach, California, have been monitoring an urban population of East Pacific green sea turtles (Chelonia mydas) that resides near the mouth of the San Gabriel River (SGR) in Southern California, USA, in order to gain insights about how the population uses this area. Here, we collate and analyze nine years of citizen science data, including observed sightings collected across 10 observation stations. Our results confirm that green sea turtles are frequently present around warm water effluent from power plants, similar to research results reported for other locations in the eastern Pacific Ocean. Importantly, observational data also show notable green sea turtle activity around the outfalls for a small wetland habitat bordering the SGR, highlighting the importance of wetland ecosystems as a key habitat and foraging area for this threatened population. Finally, our results showcase the benefits of using citizen science to monitor sea turtle populations in easily accessible nearshore habitats.
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Affiliation(s)
- Lynn M. Massey
- West Coast Region, National Marine Fisheries Service, NOAA, Long Beach, CA 90802, USA
- Correspondence:
| | - Shannon Penna
- West Coast Region, National Marine Fisheries Service, NOAA, Long Beach, CA 90802, USA
| | - Eric Zahn
- Tidal Influence, Long Beach, CA 90802, USA
| | - Dan Lawson
- West Coast Region, National Marine Fisheries Service, NOAA, Long Beach, CA 90802, USA
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176
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Assessment of Spatiotemporal Dynamics of Mangrove in Five Typical Mangrove Reserve Wetlands in Asia, Africa and Oceania. DIVERSITY 2023. [DOI: 10.3390/d15020148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Mangrove wetlands play a key role in global biodiversity conservation, though they have been damaged in recent decades. Therefore, mangrove habitats have been of great concern at the international level since the latter half of the 20th century. We focused on the key issue of the dynamics of mangrove habitats. A comprehensive review of their typicality and status from the global perspective was evaluated before the landscape dynamics of the mangrove habitats at the five sites were interpreted from Landsat satellite images covering 20 years, from 2000 to 2020. Ground-truthing was undertaken after comparing the results with the other published international mangrove datasets. We reached three conclusions: Firstly, within the period from 2000 to 2020, the mangrove area in Dongzhaigang increased by 414 ha, with an increase of 24.6%. In Sembilang NP, Sundarban, Kakadu NP, and RUMAKI, the mangrove area decreased by 1652 ha, 16,091 ha, 83 ha, and 2012 ha, with a decrease of 1.8%, 2.7%, 0.9%, and 3.9%, respectively. Secondly, other types of wetlands play a key role in degradating the mangrove wetlands in all of five protected areas. Thirdly, the rate of mangrove degradation has slowed dramatically based on the five sites over the past two decades, which are generally consistent with the findings of other researchers.
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177
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Qin Y, Liang M, Feng B, Zheng H. Coordinated pattern of multiple element variability in Aegiceras corniculatum propagule in shrimp aquaculture effluent habitats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159242. [PMID: 36208757 DOI: 10.1016/j.scitotenv.2022.159242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/18/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Human activities and environment changes have changed river estuary ecosystems, which impacts element changes in coastal sediments and mangroves. Mangrove propagule chemical traits showed a systematic shift along environmental gradients. But knowledge about how the pattern of multi-element variability is coordinated in propagule remains limited, and the conservation of macro and trace elements in propagules is also unknown. In this study, the concentrations, variability and coordinated pattern variation of 13 elements in Aegiceras corniculatum propagule across shrimp aquaculture effluent habitats, as well as the relationship between propagule element and environment factors were explored. We used CV to quantify the variability of each element, and then explore the pattern of multi-element variability. The results showed that: (1) in the habitats affected by shrimp aquaculture, the elements content shows: C > K > Cl > N > Na > P > S > Mg > Ca > Fe > Mn > Zn > Cu, and the coefficient variation shows: Mn > Cu > Fe > Zn > S > N > P > Cl > Na > K > Mg > Ca > C, which means that the element concentration are negatively correlated with the element variability and the variability of macro-elements was more conservative than micro-elements in these habitats; (2) pH, OM, C:P, and SiO32- were the four important environmental factors explaining the A. corniculatum propagule variation. In conclusion, effluent from shrimp aquaculture does affect the coordinated pattern of multiple element variability in A. corniculatum propagules. These results provide a strong evidence for assessing the impact of shrimp aquaculture effluent discharges on mangrove and provide an important theoretical basis for mangrove conservation and restoration.
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Affiliation(s)
- Yingying Qin
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin 541004, PR China; Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, Guilin 541004, PR China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China.
| | - Mingzhong Liang
- Guangxi Key Laboratory of Marine Disaster in the Beibu Gulf, Beibu Gulf University, Qinzhou 535011, PR China
| | - Bingbin Feng
- Guangxi Key Laboratory of Marine Disaster in the Beibu Gulf, Beibu Gulf University, Qinzhou 535011, PR China
| | - Hailei Zheng
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China.
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178
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Moniuszko H, Malonga WAM, Koczoń P, Thijs S, Popek R, Przybysz A. Accumulation of Plastics and Trace Elements in the Mangrove Forests of Bima City Bay, Indonesia. PLANTS (BASEL, SWITZERLAND) 2023; 12:462. [PMID: 36771545 PMCID: PMC9919253 DOI: 10.3390/plants12030462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Pollution with microplastics (MPs), nanoplastics (NPs) and trace elements (TEs) remains a considerable threat for mangrove biomes due to their capability to capture pollutants suspended in the water. This study investigated the abundance and composition of plastics and TEs contained in the soil and pneumatophores of Avicennia alba sampled in experimental areas (hotel, market, river mouth, port, and rural areas) differentiated in anthropopressure, located in Bima Bay, Indonesia. Polymers were extracted and analyzed with the use of a modified sediment isolation method and Fourier transform infrared spectroscopy. Trace elements were detected by inductively coupled plasma optical emission spectrometry. The lowest and highest quantities of MPs in soil were recorded in rural and hotel areas, respectively. The rural site was characterized by distinct MP composition. The amounts of sediment-trapped MPs in the tested localities should be considered as high, and the recognized polymers partly corresponded with local human activity. Concentrations of seven plastic types found in plant tissues did not entirely reflect sediment pollution with nine types, suggesting a selective accumulation (particularly of polyamides and vinylidene chloride) and substance migration from other areas. Very low concentrations of non-biogenic TEs were observed, both in sediments and pneumatophores. The results highlight the relevance of environmental contamination with plastics.
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Affiliation(s)
- Hanna Moniuszko
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticultural Sciences, Warsaw University of Life Sciences—SGGW (WULS—SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Win Ariga Mansur Malonga
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticultural Sciences, Warsaw University of Life Sciences—SGGW (WULS—SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
- Department of Nature Resource Conservation, Sumbawa University of Technology, Olat Maras Street, Moyohulu District, Sumbawa Regency 84371, Indonesia
| | - Piotr Koczoń
- Department of Chemistry, Institute of Horticultural Sciences, Warsaw University of Life Sciences—SGGW (WULS—SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Sofie Thijs
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Robert Popek
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticultural Sciences, Warsaw University of Life Sciences—SGGW (WULS—SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Arkadiusz Przybysz
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticultural Sciences, Warsaw University of Life Sciences—SGGW (WULS—SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
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179
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Adams A, Danylchuk AJ, Cooke SJ. Conservation connections: incorporating connectivity into management and conservation of flats fishes and their habitats in a multi-stressor world. ENVIRONMENTAL BIOLOGY OF FISHES 2023; 106:117-130. [PMID: 36686288 PMCID: PMC9847458 DOI: 10.1007/s10641-023-01391-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Coastal marine fisheries and the habitats that support them are under extensive and increasing pressures from numerous anthropogenic stressors that occur at multiple spatial and temporal scales and often intersect in unexpected ways. Frequently, the scales at which these fisheries are managed do not match the scales of the stressors, much less the geographic scale of species biology. In general, fishery management is ill prepared to address these stressors, as underscored by the continuing lack of integration of fisheries and habitat management. However, research of these fisheries is increasingly being conducted at spatial and temporal scales that incorporate biology and ecological connectivity of target species, with growing attention to the foundational role of habitat. These efforts are also increasingly engaging stakeholders and rights holders in research, education, and conservation. This multi-method approach is essential for addressing pressing conservation challenges that are common to flats ecosystems. Flats fisheries occur in the shallow, coastal habitat mosaic that supports fish species that are accessible to and desirable to target by recreational fishers. Because these species rely upon coastal habitats, the anthropogenic stressors can be especially intense-habitat alteration (loss and degradation) and water quality declines are being exacerbated by climate change and increasing direct human impacts (e.g., fishing effort, boat traffic, depredation, pollution). The connections necessary for effective flats conservation are of many modes and include ontogenetic habitat connectivity; connections between stressors and impacts to fishes; connections between research and management, such as research informing spawning area protections; and engagement of stakeholders and rights holders in research, education, and management. The articles included in this Special Issue build upon a growing literature that is filling knowledge gaps for flats fishes and their habitats and increasingly providing the evidence to inform resource management. Indeed, numerous articles in this issue propose or summarize direct application of research findings to management with a focus on current and future conservation challenges. As with many other fisheries, a revised approach to management and conservation is needed in the Anthropocene.
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Affiliation(s)
- Aaron Adams
- Bonefish & Tarpon Trust, 2937 SW 27Th Avenue, Suite 203, Miami, FL 33133 USA
- Florida Atlantic University Harbor Branch Oceanographic Institute, 5600 US 1 North, Fort Pierce, FL 34946 USA
| | - Andy J. Danylchuk
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Steven J. Cooke
- Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6 Canada
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180
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Temmerman S, Horstman EM, Krauss KW, Mullarney JC, Pelckmans I, Schoutens K. Marshes and Mangroves as Nature-Based Coastal Storm Buffers. ANNUAL REVIEW OF MARINE SCIENCE 2023; 15:95-118. [PMID: 35850492 DOI: 10.1146/annurev-marine-040422-092951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tidal marshes and mangroves are increasingly valued for nature-based mitigation of coastal storm impacts, such as flooding and shoreline erosion hazards, which are growing due to global change. As this review highlights, however, hazard mitigation by tidal wetlands is limited to certain conditions, and not all hazards are equally reduced. Tidal wetlands are effective in attenuating short-period storm-induced waves, but long-period storm surges, which elevate sea levels up to several meters for up to more than a day, are attenuated less effectively, or in some cases not at all, depending on storm conditions, wetland properties, and larger-scale coastal landscape geometry. Wetlands often limit erosion, but storm damage to vegetation (especially mangrove trees) can be substantial, and recovery may take several years. Longer-term wetland persistence can be compromised when combined with other stressors, such as climate change and human disturbances. Due to these uncertainties, nature-based coastal defense projects need to adopt adaptive management strategies.
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Affiliation(s)
- Stijn Temmerman
- Ecosphere Research Group, University of Antwerp, Antwerp, Belgium; , ,
| | - Erik M Horstman
- Water Engineering and Management, University of Twente, Enschede, The Netherlands;
| | - Ken W Krauss
- Wetland and Aquatic Research Center, US Geological Survey, Lafayette, Louisiana, USA;
| | - Julia C Mullarney
- Coastal Marine Group, School of Science, University of Waikato, Hamilton, New Zealand;
| | - Ignace Pelckmans
- Ecosphere Research Group, University of Antwerp, Antwerp, Belgium; , ,
| | - Ken Schoutens
- Ecosphere Research Group, University of Antwerp, Antwerp, Belgium; , ,
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181
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Checon HH, Corte GN, Shah Esmaeili Y, Muniz P, Turra A. The efficacy of benthic indices to evaluate the ecological quality and urbanization effects on sandy beach ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159190. [PMID: 36195141 DOI: 10.1016/j.scitotenv.2022.159190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/30/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Benthic indices have been widely used across different coastal ecosystems to assess ecological quality and detect anthropic impacts, but very few studies investigated their effectiveness on sandy beaches. Here, we evaluated and compared the efficacy of 12 assemblage-based benthic indices in assessing ecological quality in beaches, across a gradient of anthropic pressure and natural variability in 90 sandy beach sites. Overall, when sandy beaches were considered collectively, benthic indices had a poor performance in identifying decreases in ecological quality with increasing urbanization. However, when each morphodynamic type was evaluated separately, a few indices, especially those that were calibrated by reference conditions (i.e., M-AMBI, BAT, and BEQI-2), showed promising results for dissipative, and to a lesser extent, intermediate beaches. For reflective beaches, indices performed poorly, likely a reflection of the stronger natural disturbance these beaches are subjected to. Among functional indices, richness was found to be lower in urbanized beaches, but only in dissipative ones. Overall, our results show that benthic indices have the potential to be incorporated in sandy beach management and monitoring programs, especially for dissipative and intermediate beaches. For reflective beaches, given the early stage of studies with benthic indices in beaches, more research is needed to corroborate the observed patterns.
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Affiliation(s)
- Helio H Checon
- Instituto Oceanográfico, Universidade de São Paulo (USP), CEP 05508-120 São Paulo, São Paulo, Brazil; Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, CEP 13083-862 Campinas, São Paulo, Brazil.
| | - Guilherme N Corte
- Instituto Oceanográfico, Universidade de São Paulo (USP), CEP 05508-120 São Paulo, São Paulo, Brazil; Escola do Mar, Ciência e Tecnologia, Universidade do Vale do Itajaí, CEP 88302-202 Itajaí, Santa Catarina, Brazil
| | - Yasmina Shah Esmaeili
- Instituto Oceanográfico, Universidade de São Paulo (USP), CEP 05508-120 São Paulo, São Paulo, Brazil; Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, CEP 13083-862 Campinas, São Paulo, Brazil
| | - Pablo Muniz
- Oceanografía y Ecología Marina (OEM), Instituto de Ecología y Ciencias Ambientales (IECA), Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Alexander Turra
- Instituto Oceanográfico, Universidade de São Paulo (USP), CEP 05508-120 São Paulo, São Paulo, Brazil
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182
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Liu Y, Li J, Sun C, Wang X, Tian P, Chen L, Zhang H, Yang X, He G. Thirty-year changes of the coastlines, wetlands, and ecosystem services in the Asia major deltas. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116675. [PMID: 36379078 DOI: 10.1016/j.jenvman.2022.116675] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/25/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Coastal zones are usually composed of coastlines and coastal wetlands and are among the most productive and dynamic ecosystems. However, the deltas are seldom detected and compared in detail at the continental scale to investigate the spatiotemporal evolution of coastline migration and coastal wetlands. Here we detected and compared the spatiotemporal changes in coastlines, wetlands, and ecosystem services in major deltas in Asia, including the Yellow River Delta (YRD), Yangtze River Delta (YAD), Pearl River Delta (PRD), Red River Delta (RRD), Mekong River Delta (MERD), Chao Phraya River Delta (CPRD), Mahanadi River Delta (MARD), Krishna River Delta (KRD), and Indus River Delta (IRD). We used time series remote sensing images from 1990 to 2019 to derive coastline and wetland information for the nine coastal zones. The ecosystem service value coefficients were applied to explore the ecosystem services characteristics of wetland changes in coastal areas. We found that the coastlines of the deltas in the study area changed less in the bedrock and sandy coasts, while the coastlines in the silty delta coasts changed more from 1990 to 2019. The interannual dynamics of coastal wetland areas in nine major deltas over the nearly 30 years can be divided into three periods: decreasing variability (1990-2005), increasing variability (2005-2015), and increasing volatility (2015-2019). Ecosystem services had an overall downward trend. These findings complement the official database of coastal planning and have substantial guiding implications for adjusting coastal management regulation policies.
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Affiliation(s)
- Yongchao Liu
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China; Donghai Academy, Ningbo University, Ningbo, Zhejiang, 315211, China; Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Jialin Li
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China; Donghai Academy, Ningbo University, Ningbo, Zhejiang, 315211, China; Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Chao Sun
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China; Donghai Academy, Ningbo University, Ningbo, Zhejiang, 315211, China; Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Xinxin Wang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, 200438, China.
| | - Peng Tian
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Liumeng Chen
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Haitao Zhang
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Xiaodong Yang
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Gaili He
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Jiangsu, 210023, China.
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183
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Dixon O, Gammal J, Clark D, Ellis JI, Pilditch CA. Estimating Effects of Sea Level Rise on Benthic Biodiversity and Ecosystem Functioning in a Large Meso-Tidal Coastal Lagoon. BIOLOGY 2023; 12:biology12010105. [PMID: 36671797 PMCID: PMC9855350 DOI: 10.3390/biology12010105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Abstract
Estuaries are among the world's most productive ecosystems, but due to their geographic location, they are at the forefront of anthropogenic pressures. Sea level rise (SLR) is one major consequence of climate change that poses a threat to estuaries with extensive intertidal habitats. The ecological implications of intertidal habitat loss have been largely overlooked despite their likely significance. We aimed to address this knowledge gap by investigating how benthic macroinvertebrate communities and their contributions to ecosystem function are likely to respond to SLR. Based on a spatially extensive dataset (119 sites) from a large coastal lagoon, depth, sediment chlorophyll concentrations, mud content, and average current speed were identified as the main drivers of community compositional turnover. Shifts in benthic community structure and associated functional implications were then evaluated using depth as a proxy for SLR. Three main macrofaunal groups representing intertidal, shallow subtidal, and deep subtidal habitats were identified. Functional trait analysis indicated low functional redundancy for a key intertidal suspension-feeding bivalve (Austrovenus stutchburyi) and the lack of a shallow subtidal functional replacement should intertidal habitats become inundated. These findings strongly suggest SLR and the associated environmental changes will alter estuarine macroinvertebrate communities, with implications for future ecosystem function and resilience.
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Affiliation(s)
- Olivia Dixon
- School of Science, The University of Waikato, Hamilton 3240, New Zealand
| | - Johanna Gammal
- School of Science, The University of Waikato, Hamilton 3240, New Zealand
- Correspondence:
| | - Dana Clark
- Cawthron Institute, Nelson 7010, New Zealand
| | - Joanne I. Ellis
- School of Science, The University of Waikato, Tauranga 3110, New Zealand
| | - Conrad A. Pilditch
- School of Science, The University of Waikato, Hamilton 3240, New Zealand
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184
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Fernandes LDA, Corte GN, Moura L, Reis C, Matos T, Moreno D, Cortez PSA, de Carvalho WF, Monteiro-Ribas W, Gonçalves JEA, Ribeiro F, Thomazelli F, Rizzini-Ansari N, Neto EBF, Gaelzer LR, de Souza Martins E, Lobão MM, Baeta-Neves MH, Coutinho R. Effects of dredging activities and seasonal variation on coastal plankton assemblages: results from 10 years of environmental monitoring. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:261. [PMID: 36598707 DOI: 10.1007/s10661-022-10867-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Coastal zones support the most productive marine ecosystems, yet they are increasingly threatened by anthropogenic stressors such as dredging. In this study, we investigated how seasonal variation and dredging activities conducted during the construction of a harbor and submarine base (Sepetiba Bay, RJ, Brazil) affected the phytoplankton and zooplankton assemblages. The observed temporal variability at five different sites over 10 years revealed that dredging exceeds the expected influence of dry and rainy seasons on plankton abundance and diversity. In general, the abundance of both groups increased during dredging due to the resuspension of nutrients and benthic organisms. This increase was particularly evident in the dinoflagellate Scrippsiellaa cuminata, the diatoms Thalassiosira rotula and Nitzschia longissima, and the herbivorous zooplankton Acartia clausii and Pseudevadne tergestina. Moreover, season and dredging activities synergistically influenced plankton assemblages, resulting in larger seasonal variations during dredging activities. After the end of the harbor construction, plankton abundance decreased and remained low until the end of the monitoring, which may indicate persistent changes in the biodiversity and ecosystem functioning of impacted areas.
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Affiliation(s)
- Lohengrin D A Fernandes
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil.
- Marine Biotechnology Post-Graduation Program (PPGBM), Rio de Janeiro, Brazil.
| | - Guilherme N Corte
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil
- College of Science and Mathematics, University of Virgin Islands, Charlotte Amalie West, Saint Thomas, USVI, USA
| | - Laura Moura
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil
| | - Carolina Reis
- Marine Biotechnology Post-Graduation Program (PPGBM), Rio de Janeiro, Brazil
| | - Thiago Matos
- Marine Biotechnology Post-Graduation Program (PPGBM), Rio de Janeiro, Brazil
| | - Danubia Moreno
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - Pedro Sant' Anna Cortez
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - Wanderson Fernandes de Carvalho
- Department of Marine Ecology and Resources, Federal University of the State of Rio de Janeiro, DERM/UNIRIO, Rio de Janeiro, Brazil
| | - Wanda Monteiro-Ribas
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - José Eduardo A Gonçalves
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil
| | - Fernando Ribeiro
- Division of Physical Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - Fernanda Thomazelli
- Division of Chemical Oceanography and Environmental Geochemistry, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Arraial Do Cabo, Rio de Janeiro, Brazil
| | - Nafisa Rizzini-Ansari
- Division of Chemical Oceanography and Environmental Geochemistry, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Arraial Do Cabo, Rio de Janeiro, Brazil
| | - Eduardo Barros Fagundes Neto
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
- Submarine Acoustic Post-Graduation Program (PPGAS), Rio de Janeiro, Brazil
| | - Luiz Ricardo Gaelzer
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - Elizabeth de Souza Martins
- Division of Biological Oceanography, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Rio de Janeiro, Arraial Do Cabo, Brazil
| | - Márcio Martins Lobão
- Division of Chemical Oceanography and Environmental Geochemistry, Department of Oceanography, IEAPM, Brazilian Navy, Kioto St, 253, Arraial Do Cabo, Rio de Janeiro, Brazil
| | - Maria Helena Baeta-Neves
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil
- Marine Biotechnology Post-Graduation Program (PPGBM), Rio de Janeiro, Brazil
| | - Ricardo Coutinho
- Division of Applied Biotechnology, Department of Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Brazilian Navy, Kioto St, 253, Arraial do Cabo, Rio de Janeiro, 28930-000, Brazil
- Marine Biotechnology Post-Graduation Program (PPGBM), Rio de Janeiro, Brazil
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185
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Bost MC, Deaton CD, Rodriguez AB, McKee BA, Fodrie FJ, Miller CB. Anthropogenic impacts on tidal creek sedimentation since 1900. PLoS One 2023; 18:e0280490. [PMID: 36652445 PMCID: PMC9847910 DOI: 10.1371/journal.pone.0280490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 12/30/2022] [Indexed: 01/19/2023] Open
Abstract
Land cover and use around the margins of estuaries has shifted since 1950 at many sites in North America due to development pressures from higher population densities. Small coastal watersheds are ubiquitous along estuarine margins and most of this coastal land-cover change occurred in these tidal creek watersheds. A change in land cover could modify the contribution of sediments from tidal creek watersheds to downstream areas and affect estuarine habitats that rely on sediments to persist or are adversely impacted by sediment loading. The resilience of wetlands to accelerating relative sea-level rise depends, in part, on the supply of lithogenic sediment to support accretion and maintain elevation; however, subtidal habitats such as oyster reefs and seagrass beds are stressed under conditions of high turbidity and sedimentation. Here we compare sediment accumulation rates before and after 1950 using 210Pb in 12 tidal creeks across two distinct regions in North Carolina, one region of low relief tidal-creek watersheds where land cover change since 1959 was dominated by fluctuations in forest, silviculture, and agriculture, and another region of relatively high relief tidal-creek watersheds where land-use change was dominated by increasing suburban development. At eight of the creeks, mass accumulation rates (g cm-2 y-1) measured at the outlet of the creeks increased contemporaneously with the largest shift in land cover, within the resolution of the land-cover data set (~5-years). All but two creek sites experienced a doubling or more in sediment accumulation rates (cm yr-1) after 1950 and most sites experienced sediment accumulation rates that exceeded the rate of local relative sea-level rise, suggesting that there is an excess of sediment being delivered to these tidal creeks and that they may slowly be infilling. After 1950, land cover within one creek watershed changed little, as did mass accumulation rates at the coring location, and another creek coring site did not record an increase in mass accumulation rates at the creek outlet despite a massive increase in development in the watershed that included the construction of retention ponds. These abundant tidal-creek watersheds have little relief, area, and flow, but they are impacted by changes in land cover more, in terms of percent area, than their larger riverine counterparts, and down-stream areas are highly connected to their associated watersheds. This work expands the scientific understanding of connectivity between lower coastal plain watersheds and estuaries and provides important information for coastal zone managers seeking to balance development pressures and environmental protections.
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Affiliation(s)
- Molly C. Bost
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
- National Oceanic and Atmospheric Administration, National Centers for Coastal Ocean Science, Beaufort, North Carolina, United States of America
- CSS-Inc., Fairfax, Virginia, United States of America
- * E-mail:
| | - Charles D. Deaton
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
| | - Antonio B. Rodriguez
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
- Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Brent A. McKee
- National Oceanic and Atmospheric Administration, National Centers for Coastal Ocean Science, Beaufort, North Carolina, United States of America
| | - F. Joel Fodrie
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
- Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Carson B. Miller
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
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186
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Kopprio GA, Martínez A, Fricke A, Hupfer M, Lara RJ, Graeve M, Gärdes A. Towards the outwelling hypothesis in a Patagonian estuary: First support from lipid markers and bacterial communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158670. [PMID: 36099952 DOI: 10.1016/j.scitotenv.2022.158670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/28/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Biogeochemical markers in combination with bacterial community composition were studied at two contrasting stations at the Río Negro (RN) estuary to assess the outwelling hypothesis in the Argentinian Patagonia. Inorganic nutrients and dissolved organic matter were exported clearly during the last hours of the ebb at the station Wetland. Moreover, a considerable outwelling of polyunsaturated fatty acids (PUFA), particulates and microalgae was inferred by this combined approach. The exported 22:6(n-3) and 20:5(n-3) contributed very likely to sustain higher trophic levels in the coasts of the Southwest Atlantic. The stable isotopes did not evidence clearly the outwelling; nevertheless, the combination of δ13C with fatty acid bacterial markers indicated organic matter degradation in the sediments. The dominance of Desulfobacterales and Desulfuromonadales suggested sulphate reduction in the sediments, a key mechanism for nutrient outwelling in salt marshes. Marivivens and other Rhodobacterales (Alphaproteobacteria) in the suspended particulate matter were clear indicators of the nutrient outwelling. The colonization of particles according to the island biogeography theory was a good hypothesis to explain the lower bacterial biodiversity at the wetland. The copiotrophic conditions of the RN estuary and particularly at the wetland were deduced also by the dynamic of some Actinobacteria, Bacteroidia and Gammaproteobacteria. This high-resolution snapshot combining isotopic, lipid and bacterial markers offers key pioneer insights into biogeochemical and ecological processes of the RN estuary.
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Affiliation(s)
- Germán A Kopprio
- Robert Koch Institute, Berlin, Germany; Leibniz Institute for Freshwater Ecology and Inland Fisheries, Berlin, Germany; Instituto Argentino de Oceanografía - Consejo Nacional de Investigaciones Científicas y Técnicas, Bahía Blanca, Argentina.
| | - Ana Martínez
- Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Anna Fricke
- Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren, Germany
| | - Michael Hupfer
- Leibniz Institute for Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Rubén J Lara
- Instituto Argentino de Oceanografía - Consejo Nacional de Investigaciones Científicas y Técnicas, Bahía Blanca, Argentina
| | - Martin Graeve
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
| | - Astrid Gärdes
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; University of Applied Sciences, Bremerhaven, Germany
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187
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Stiepani J, Jiddawi N, Mtwana Nordlund L. Social-ecological system analysis of an invertebrate gleaning fishery on the island of Unguja, Zanzibar. AMBIO 2023; 52:140-154. [PMID: 35945415 PMCID: PMC9666602 DOI: 10.1007/s13280-022-01769-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 02/01/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Invertebrate gleaning is a small-scale fishery that commonly occurs in the intertidal zone across the tropical Indo-Pacific. In this study, we investigated and analyzed several components of this fishery on the island of Unguja, Zanzibar by employing the social-ecological systems framework from Ostrom 2009. In doing so, we conducted ecological surveys, catch assessments, interviews with gleaners, household surveys, focus group interviews and analyzed the governance structure. This social-ecological systems analysis showed that gleaning is important for food security, local culture and livelihood. Yet, the multiple approaches in our study revealed that the local intertidal zone is degrading and that the gleaned catch is changing. Local narratives indicate that economically important bivalves (Modiolus spp.) and gastropods (Strombus spp.) are in decline, which was paralleled with low abundances of both genera within the ecological survey of the intertidal and catch landing assessment. We recommend that invertebrate gleaning, a fishery mainly comprised of women should be included in fisheries management.
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Affiliation(s)
- Johann Stiepani
- Natural Resources and Sustainable Development, NRHU Department of Earth Sciences, Uppsala University, Campus Gotland, Visby, Sweden
| | - Narriman Jiddawi
- Institute of Marine Sciences, University of Dar Es Salaam, Dar Es Salaam, Tanzania
| | - Lina Mtwana Nordlund
- Natural Resources and Sustainable Development, NRHU Department of Earth Sciences, Uppsala University, Campus Gotland, Visby, Sweden
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188
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Zhang S, Tan X, Zhou Y, Liu N. Effects of a heavy metal (cadmium) on the responses of subtropical coastal tree species to drought stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12682-12694. [PMID: 36114969 DOI: 10.1007/s11356-022-22696-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
With global climate change and increased industrialization, drought and heavy metals have become common abiotic stress factors for coastal vegetation. In this study, we investigated the ecophysiological responses of the seedlings of three subtropical coastal tree species (Barringtonia racemosa, Hibiscus tiliaceus, and Terminalia neotaliala) to drought stress (D), cadmium addition (Cd), and their combined effects (Cd + D). The results showed that, for all three plant species, treatment D significantly decreased Amax, Y(II), qP, and ETR; increased the concentrations of PRO, soluble sugars, ABA, MDA, and O2-; and increased the activity of Rubisco. The concentrations of soluble sugars, MDA, and O2- were similar for treatments D and Cd; the only difference was that qP, Amax, and ETR values of B. racemosa and the Amax value of H. tiliaceus were significantly lower in treatment Cd than in control. The concentrations of PRO, soluble sugars, ABA, and MDA were significantly lower for treatment Cd + D than for treatment D. The O2- concentration was positively correlated with the concentrations of soluble sugars and PRO, indicating that osmoregulation was important for the responses of the plants to oxidative stress. ABA was positively correlated with MDA, indicating that ABA was involved in the response to oxidative stress. These results, which show that Cd may weaken the physiological responses of coastal plants to drought stress by increasing ABA accumulation, may provide guidance for coastal ecosystem management in South China.
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Affiliation(s)
- Shike Zhang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xuan Tan
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Yuheng Zhou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Nan Liu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China.
- College of Life Sciences, Gannan Normal University, 341000, Ganzhou, China.
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189
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Christianen MJA, Smulders FOH, Vonk JA, Becking LE, Bouma TJ, Engel SM, James RK, Nava MI, de Smit JC, van der Zee JP, Palsbøll PJ, Bakker ES. Seagrass ecosystem multifunctionality under the rise of a flagship marine megaherbivore. GLOBAL CHANGE BIOLOGY 2023; 29:215-230. [PMID: 36330798 PMCID: PMC10099877 DOI: 10.1111/gcb.16464] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/09/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Large grazers (megaherbivores) have a profound impact on ecosystem functioning. However, how ecosystem multifunctionality is affected by changes in megaherbivore populations remains poorly understood. Understanding the total impact on ecosystem multifunctionality requires an integrative ecosystem approach, which is especially challenging to obtain in marine systems. We assessed the effects of experimentally simulated grazing intensity scenarios on ecosystem functions and multifunctionality in a tropical Caribbean seagrass ecosystem. As a model, we selected a key marine megaherbivore, the green turtle, whose ecological role is rapidly unfolding in numerous foraging areas where populations are recovering through conservation after centuries of decline, with an increase in recorded overgrazing episodes. To quantify the effects, we employed a novel integrated index of seagrass ecosystem multifunctionality based upon multiple, well-recognized measures of seagrass ecosystem functions that reflect ecosystem services. Experiments revealed that intermediate turtle grazing resulted in the highest rates of nutrient cycling and carbon storage, while sediment stabilization, decomposition rates, epifauna richness, and fish biomass are highest in the absence of turtle grazing. In contrast, intense grazing resulted in disproportionally large effects on ecosystem functions and a collapse of multifunctionality. These results imply that (i) the return of a megaherbivore can exert strong effects on coastal ecosystem functions and multifunctionality, (ii) conservation efforts that are skewed toward megaherbivores, but ignore their key drivers like predators or habitat, will likely result in overgrazing-induced loss of multifunctionality, and (iii) the multifunctionality index shows great potential as a quantitative tool to assess ecosystem performance. Considerable and rapid alterations in megaherbivore abundance (both through extinction and conservation) cause an imbalance in ecosystem functioning and substantially alter or even compromise ecosystem services that help to negate global change effects. An integrative ecosystem approach in environmental management is urgently required to protect and enhance ecosystem multifunctionality.
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Affiliation(s)
- Marjolijn J. A. Christianen
- Aquatic Ecology and Water Quality Management GroupWageningen University & ResearchWageningenThe Netherlands
- Marine Evolution and Conservation GroupGroningen Institute for Evolutionary Life Sciences, University of GroningenGroningenThe Netherlands
| | - Fee O. H. Smulders
- Aquatic Ecology and Water Quality Management GroupWageningen University & ResearchWageningenThe Netherlands
| | - Jan Arie Vonk
- Department of Freshwater and Marine EcologyInstitute for Biodiversity and Ecosystem Dynamics (IBED), University of AmsterdamAmsterdamThe Netherlands
| | - Leontine E. Becking
- Aquaculture and Fisheries groupWageningen University & Research CentreWageningenThe Netherlands
| | - Tjeerd J. Bouma
- Department of Estuarine and Delta Systems, Royal Netherlands Institute for Sea Research (NIOZ)YersekeThe Netherlands
- Department of Physical Geography, Faculty of GeosciencesUtrecht UniversityUtrechtThe Netherlands
| | - Sabine M. Engel
- STINAPA, Bonaire National Parks FoundationBonaireCaribbean Netherlands
| | - Rebecca K. James
- Department of Estuarine and Delta Systems, Royal Netherlands Institute for Sea Research (NIOZ)YersekeThe Netherlands
- Biogeochemistry and Modeling of the Earth System GroupUniversité libre de BruxellesBruxellesBelgium
| | - Mabel I. Nava
- Sea Turtle Conservation BonaireBonaireCaribbean Netherlands
| | - Jaco C. de Smit
- Department of Estuarine and Delta Systems, Royal Netherlands Institute for Sea Research (NIOZ)YersekeThe Netherlands
- Department of Physical Geography, Faculty of GeosciencesUtrecht UniversityUtrechtThe Netherlands
| | - Jurjan P. van der Zee
- Marine Evolution and Conservation GroupGroningen Institute for Evolutionary Life Sciences, University of GroningenGroningenThe Netherlands
| | - Per J. Palsbøll
- Marine Evolution and Conservation GroupGroningen Institute for Evolutionary Life Sciences, University of GroningenGroningenThe Netherlands
- Center for Coastal StudiesProvincetownMassachusettsUSA
| | - Elisabeth S. Bakker
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
- Wildlife Ecology and Conservation Group, Wageningen University & ResearchWageningenThe Netherlands
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190
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Chen X, Wang Y, Jiang L, Huang X, Huang D, Dai W, Cai Z, Wang D. Water quality status response to multiple anthropogenic activities in urban river. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:3440-3452. [PMID: 35945324 DOI: 10.1007/s11356-022-22378-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/30/2022] [Indexed: 06/15/2023]
Abstract
Water quality evaluation and degrading factors identification are crucial for predicting water quality evolution trends in an urban river. However, under the coupling of multiple factors, these targets face great challenges. The water quality status response to multiple anthropogenic activities in an urban river was evaluated and predicted based on comprehensive assessment methods and random forest (RF) model. We found that the distribution of each physicochemical parameter exhibits an obvious spatial clustering. The mean pollution level and trophic status of the urban river are medium pollution (water quality index = 59.79; Nemerow's pollution index = 2.00) and light eutrophication (trophic level index = 57.30). The water quality status is sensitive to anthropogenic activities, showing the following order of TLI and NPI values: residential district > industrial district > agricultural district and downtown > suburbs > countryside. According to the redundancy analysis, constructed land (F = 15.90, p < 0.01) and domestic sewage (F = 14.20, p < 0.01) evinced as the crucial factors that aggravated the water quality pollution level. Based on the simulation results of the RF model (variation explained = 94.91%; R2 = 0.978), improving domestic sewage treatment standards is the most effective measure to improve the water quality (increased by 40.3-49.3%) in residential and industrial districts. While in a suburban district, improving the domestic sewage collection rate has more effectively (23%) than those in the residential and industrial districts. Conclusively, reducing exogenous pollution input and improving domestic sewage treatment standards are vital to urban river restoration. Clinical trial registration Not applicable.
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Affiliation(s)
- Xi Chen
- School of Geographical Information and Tourism, Chuzhou University, Chuzhou, 239000, China
- Anhui Province Key Laboratory of Physical Geographic Environment, Chuzhou, 239000, China
| | - Yanhua Wang
- School of Geography, Nanjing Normal University, Nanjing, 20023, China
| | - Ling Jiang
- School of Geographical Information and Tourism, Chuzhou University, Chuzhou, 239000, China.
- Anhui Province Key Laboratory of Physical Geographic Environment, Chuzhou, 239000, China.
- Anhui Engineering Laboratory of Geo-information Smart Sensing and Services, Chuzhou, 239000, China.
| | - Xiaoli Huang
- School of Geographical Information and Tourism, Chuzhou University, Chuzhou, 239000, China
- Anhui Province Key Laboratory of Physical Geographic Environment, Chuzhou, 239000, China
- Anhui Engineering Laboratory of Geo-information Smart Sensing and Services, Chuzhou, 239000, China
| | - Danni Huang
- School of Geographical Information and Tourism, Chuzhou University, Chuzhou, 239000, China
| | - Wen Dai
- School of Geographical Sciences, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Zucong Cai
- School of Geography, Nanjing Normal University, Nanjing, 20023, China
| | - Dong Wang
- School of Geographical Information and Tourism, Chuzhou University, Chuzhou, 239000, China
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191
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Krause JR, Oczkowski AJ, Watson EB. Improved mapping of coastal salt marsh habitat change at Barnegat Bay (NJ, USA) using object-based image analysis of high-resolution aerial imagery. REMOTE SENSING APPLICATIONS : SOCIETY AND ENVIRONMENT 2023; 29:1-11. [PMID: 37235064 PMCID: PMC10208303 DOI: 10.1016/j.rsase.2022.100910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Tidal wetlands are valued for the ecosystem services they provide yet are vulnerable to loss due to anthropogenic disturbances such as land conversion, hydrologic modifications, and the impacts of climate change, especially accelerating rates of sea level rise. To effectively manage tidal wetlands in face of multiple stressors, accurate studies of wetland extent and trends based on high-resolution imagery are needed. We provide salt marsh delineations for Barnegat Bay, New Jersey, by means of object-based image analysis of high-resolution aerial imagery and digital elevation models. We performed trends analyses of salt marsh extent from 1995 to 2015 and estimated drivers of marsh area change. We found that in 1995, 8830 ± 390 ha were covered with marsh vegetation, while in 2015 only 8180 ± 380 ha of salt marsh habitat remained. The resulting net loss rate of 0.37% yr-1 is equivalent to historic loss rates since the 1970s, indicating that despite regionally accelerating relative sea level rise and purported eutrophication, salt marsh loss rates at Barnegat Bay remain steady. The main drivers of salt marsh loss are excavations for mosquito control (409 ha), edge erosion (303 ha) and ponding (240 ha). Upland migration of salt marsh did not completely mitigate these losses but accounted for a gain of 147 ha of tidal marsh habitat. The methodology presented herein yielded accurate salt marsh delineations (>90%) and trend detection (85%), outperforming low-resolution wetland delineations used in coastal management. This study demonstrates the suitability of high-resolution imagery for the detection of open water features. For the purposes of salt marsh change detection and the identification of change drivers, management and conservation agencies should make use of high-resolution imagery whenever feasible.
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Affiliation(s)
- Johannes R. Krause
- Florida International University, Coastlines and Oceans Division, OE-148, 11200 SW 8th St, Miami, FL, 33199, USA
- Department of Biodiversity, Earth & Environmental Sciences, The Academy of Natural Sciences of Drexel University, Philadelphia, PA, USA
| | - Autumn J. Oczkowski
- US EPA, Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Elizabeth Burke Watson
- Department of Biodiversity, Earth & Environmental Sciences, The Academy of Natural Sciences of Drexel University, Philadelphia, PA, USA
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192
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Prystay T, Adams G, Favaro B, Gregory R, Le Bris A. The reproducibility of remotely piloted aircraft systems to monitor seasonal variation in submerged seagrass and estuarine habitats. Facets (Ott) 2023. [DOI: 10.1139/facets-2022-0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Seasonal variation in seagrass growth and senescence affects the provision of ecosystem services and restoration efforts, requiring seasonal monitoring. Remotely piloted aircraft systems (RPAS) enable frequent high-resolution surveys at full-meadow scales. However, the reproducibility of RPAS surveys is challenged by varying environmental conditions, which are common in temperate estuarine systems. We surveyed three eelgrass ( Zostera marina) meadows in Newfoundland, Canada, using an RPAS equipped with a three-color band (red, green, blue [RGB]) camera, to evaluate the seasonal reproducibility of RPAS surveys and assess the effects of flight altitude (30–115 m) on classification accuracy. Habitat percent cover was estimated using supervised image classification and compared to corresponding estimates from snorkel quadrat surveys. Our results revealed inconsistent misclassification due to environmental variability and low spectral separability between habitats. This rendered differentiating between model misclassification versus actual changes in seagrass cover infeasible. Conflicting estimates in seagrass and macroalgae percent cover compared to snorkel estimates could not be corrected by decreasing the RPAS altitude. Instead, higher altitude surveys may be worth the trade-off of lower image resolution to avoid environmental conditions shifting mid-survey. We conclude that RPAS surveys using RGB imagery alone may be insufficient to discriminate seasonal changes in estuarine subtidal vegetated habitats.
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Affiliation(s)
- T.S. Prystay
- Centre for Fisheries Ecosystems Research, Fisheries and Marine Institute, Memorial University of Newfoundland, St. John’s, NL A1C 5R3, Canada
| | - G. Adams
- Centre for Fisheries Ecosystems Research, Fisheries and Marine Institute, Memorial University of Newfoundland, St. John’s, NL A1C 5R3, Canada
| | - B. Favaro
- Faculty of Science and Horticulture, Kwantlen Polytechnic University, Surrey, BC V3W 2M8, Canada
| | - R.S. Gregory
- Fisheries and Oceans Canada, Ecological Sciences Section, Northwest Atlantic Fisheries Centre, St. John’s, NL A1C 5X1, Canada
| | - A. Le Bris
- Centre for Fisheries Ecosystems Research, Fisheries and Marine Institute, Memorial University of Newfoundland, St. John’s, NL A1C 5R3, Canada
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193
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Wei X, Song W, Shao Y, Cai X. Progress of Ecological Restoration Research Based on Bibliometric Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:520. [PMID: 36612842 PMCID: PMC9819557 DOI: 10.3390/ijerph20010520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/21/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
With the deterioration of the global/regional ecological environment, ecological restoration plays an important role in sustainable development. However, due to the differences in research methods, objectives, and perspectives, the research results are highly diverse. This makes it necessary to sort the publications related to ecological restoration, clarify the research status, grasp the research hotspots, and predict the future research trends. Here, 23,755 articles from the core database of Web of Science were retrieved, and bibliometric analysis was carried out to understand the global ecological restoration research progress from 1990 to 2022 from a macro perspective, with the aim to determine the future development direction. The results are as follows. (1) From 1990 to 2022, the number of publications in the field of ecological restoration constantly increased, and the fluctuation of the average annual citations increased. The most important articles were published in high-ranking journals. (2) Ecological restoration covers a wide range of research areas, including biodiversity, ecosystem services, climate change, land use, and ecological restoration theories and technologies. The four main hotspots in this field are heavy metal removal, soil microbial biomass carbon and nitrogen concentrations, grassland ecological restoration, and evaluation framework and modeling of ecological restoration's effects. Currently, studies focus on river basin remediation, heavy metal removal, and forest restoration. (3) Future ecological restoration research should strengthen the multi-object aspect and multi-scale ecological restoration research, improve the ecological restoration effect evaluation system, and incorporate social and economic issues. This study identified current research hotspots and predicted potential future research directions, providing a scientific reference for future studies in the field of ecological restoration.
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Affiliation(s)
- Xi Wei
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
- School of Earth Sciences, Guilin University of Technology, Guilin 541000, China
| | - Wei Song
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
- Hebei Collaborative Innovation Center for Urban-Rural Integration Development, Shijiazhuang 050061, China
| | - Ya Shao
- School of Earth Sciences, Guilin University of Technology, Guilin 541000, China
| | - Xiangwen Cai
- School of Earth Sciences, Guilin University of Technology, Guilin 541000, China
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194
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Davis CL, Walls SC, Barichivich WJ, Brown ME, Miller DAW. Disentangling direct and indirect effects of extreme events on coastal wetland communities. J Anim Ecol 2022. [PMID: 36527172 DOI: 10.1111/1365-2656.13874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
One of the primary ways in which climate change will impact coastal freshwater wetlands is through changes in the frequency, intensity, timing and distribution of extreme weather events. Disentangling the direct and indirect mechanisms of population- and community-level responses to extreme events is vital to predicting how species composition of coastal wetlands will change under future conditions. We extended static structural equation modelling approaches to incorporate system dynamics in a multi-year multispecies occupancy model to quantify the effects of extreme weather events on a coastal freshwater wetland system. We used data from an 8-year study (2009-2016) on St. Marks National Wildlife Refuge in Florida, USA, to quantify species-specific and community-level changes in amphibian and fish occupancy associated with two flooding events in 2012 and 2013. We examine how physical changes to the landscape, including potential changes in salinity and increased wetland connectivity, may have contributed to or exacerbated the effects of these extreme weather events on the biota of isolated coastal wetlands. We provide evidence that the primary effects of flooding on the amphibian community were through indirect mechanisms via changes in the composition of the sympatric fish community that may have had lethal (i.e. through direct predation) or non-lethal (i.e. through direct or indirect competitive interactions) effects. In addition, we have shown that amphibian species differed in their sensitivity to direct flooding effects and indirect changes in the fish community and wetland-specific conductance, which led to variable responses across the community. These effects led to the overall decline in amphibian species richness from 2009 to 2016, suggesting that wetland-breeding amphibian communities on St. Marks National Wildlife Refuge may not be resilient to predicted changes in coastal disturbance regimes because of climate change. Understanding both direct and indirect effects, as well as species interactions, is important for predicting the effects of a changing climate on individual species, communities and ecosystems.
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Affiliation(s)
- Courtney L Davis
- Department of Ecosystem Science and Management, Pennsylvania State University, University Park, Pennsylvania, USA.,Intercollege Graduate Ecology Program, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Susan C Walls
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, Florida, USA
| | - William J Barichivich
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, Florida, USA
| | - Mary E Brown
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, Florida, USA
| | - David A W Miller
- Department of Ecosystem Science and Management, Pennsylvania State University, University Park, Pennsylvania, USA
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195
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Decker RR, Hastings A. Sea-level rise can reverse the conditions that promote the spread of ecosystem engineers. THEOR ECOL-NETH 2022. [DOI: 10.1007/s12080-022-00548-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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196
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Teichert N, Lizé A, Tabouret H, Roussel JM, Bareille G, Trancart T, Acou A, Virag LS, Pécheyran C, Carpentier A, Feunteun E. European flounder foraging movements in an estuarine nursery seascape inferred from otolith microchemistry and stable isotopes. MARINE ENVIRONMENTAL RESEARCH 2022; 182:105797. [PMID: 36356375 DOI: 10.1016/j.marenvres.2022.105797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/21/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Despite the importance of estuarine nurseries in the regulation of many fish stocks, temporal and spatial movements and habitat use patterns of juvenile fish remain poorly understood. Overall, combining several movement metrics allowed us to characterize dispersal patterns of juvenile flounder, Platichthys flesus, along an estuarine seascape. Specifically, we investigated otolith microchemistry signatures (Sr:Ca and Ba:Ca ratios) and stable isotope ratios (δ13C and δ15N) in muscles of these juveniles, during three consecutive years to assess inter-annual fluctuations in their home range and isotopic niches. The morphological condition and lipid content of individuals were lower in years of high as compared to low dispersal along the estuarine gradient. We discuss these results in relation to the ecosystem productivity and intra- and inter-specific competition level, which in turn affects movements and foraging behaviors of juvenile flounders.
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Affiliation(s)
- Nils Teichert
- UMR 7208 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, Dinard, France.
| | - Anne Lizé
- UMR 7208 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, Dinard, France; School of Life Sciences, University of Liverpool, Liverpool, UK
| | - Hélène Tabouret
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Pau, France
| | - Jean-Marc Roussel
- DECOD (Ecosystem Dynamics and Sustainability), INRAE, IFREMER, Institut Agro, Rennes, France; MIAME (Management of Diadromous Fish in their Environment), OFB, INRAE, Institut Agro, Université de Pau, Rennes, France
| | - Gilles Bareille
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Pau, France
| | - Thomas Trancart
- UMR 7208 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, Dinard, France
| | - Anthony Acou
- MIAME (Management of Diadromous Fish in their Environment), OFB, INRAE, Institut Agro, Université de Pau, Rennes, France; Centre d'expertise et de données PatriNat (OFB - CNRS - MNHN), Station marine de Dinard, CRESCO, Dinard, France
| | | | | | - Alexandre Carpentier
- Université de Rennes 1, UMR 7208 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Campus de Beaulieu, 35000, Rennes, France
| | - Eric Feunteun
- UMR 7208 BOREA (MNHN, CNRS, IRD, SU, UCN, UA), Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques, Paris, France; MNHN, Station Marine de Dinard, CRESCO, Dinard, France
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197
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Campbell AD, Fatoyinbo L, Goldberg L, Lagomasino D. Global hotspots of salt marsh change and carbon emissions. Nature 2022; 612:701-706. [PMID: 36450979 PMCID: PMC9771810 DOI: 10.1038/s41586-022-05355-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 09/15/2022] [Indexed: 12/02/2022]
Abstract
Salt marshes provide ecosystem services such as carbon sequestration1, coastal protection2, sea-level-rise (SLR) adaptation3 and recreation4. SLR5, storm events6, drainage7 and mangrove encroachment8 are known drivers of salt marsh loss. However, the global magnitude and location of changes in salt marsh extent remains uncertain. Here we conduct a global and systematic change analysis of Landsat satellite imagery from the years 2000-2019 to quantify the loss, gain and recovery of salt marsh ecosystems and then estimate the impact of these changes on blue carbon stocks. We show a net salt marsh loss globally, equivalent to an area double the size of Singapore (719 km2), with a loss rate of 0.28% year-1 from 2000 to 2019. Net global losses resulted in 16.3 (0.4-33.2, 90% confidence interval) Tg CO2e year-1 emissions from 2000 to 2019 and a 0.045 (-0.14-0.115) Tg CO2e year-1 reduction of carbon burial. Russia and the USA accounted for 64% of salt marsh losses, driven by hurricanes and coastal erosion. Our findings highlight the vulnerability of salt marsh systems to climatic changes such as SLR and intensification of storms and cyclones.
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Affiliation(s)
- Anthony D Campbell
- Biospheric Sciences Laboratory, National Aeronautics and Space Administration (NASA) Goddard Space Flight Center, Greenbelt, MD, USA.
- NASA Postdoctoral Program, Oak Ridge Associated Universities, Oak Ridge, TN, USA.
- GESTAR II, University of Maryland, Baltimore County, Baltimore, MD, USA.
| | - Lola Fatoyinbo
- Biospheric Sciences Laboratory, National Aeronautics and Space Administration (NASA) Goddard Space Flight Center, Greenbelt, MD, USA
| | - Liza Goldberg
- Biospheric Sciences Laboratory, National Aeronautics and Space Administration (NASA) Goddard Space Flight Center, Greenbelt, MD, USA
- Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA
| | - David Lagomasino
- Integrated Coastal Programs, East Carolina University, Wanchese, NC, USA
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198
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Hyndes GA, Berdan EL, Duarte C, Dugan JE, Emery KA, Hambäck PA, Henderson CJ, Hubbard DM, Lastra M, Mateo MA, Olds A, Schlacher TA. The role of inputs of marine wrack and carrion in sandy-beach ecosystems: a global review. Biol Rev Camb Philos Soc 2022; 97:2127-2161. [PMID: 35950352 PMCID: PMC9804821 DOI: 10.1111/brv.12886] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 06/26/2022] [Accepted: 06/29/2022] [Indexed: 01/09/2023]
Abstract
Sandy beaches are iconic interfaces that functionally link the ocean with the land via the flow of organic matter from the sea. These cross-ecosystem fluxes often comprise uprooted seagrass and dislodged macroalgae that can form substantial accumulations of detritus, termed 'wrack', on sandy beaches. In addition, the tissue of the carcasses of marine animals that regularly wash up on beaches form a rich food source ('carrion') for a diversity of scavenging animals. Here, we provide a global review of how wrack and carrion provide spatial subsidies that shape the structure and functioning of sandy-beach ecosystems (sandy beaches and adjacent surf zones), which typically have little in situ primary production. We also examine the spatial scaling of the influence of these processes across the broader land- and seascape, and identify key gaps in our knowledge to guide future research directions and priorities. Large quantities of detrital kelp and seagrass can flow into sandy-beach ecosystems, where microbial decomposers and animals process it. The rates of wrack supply and its retention are influenced by the oceanographic processes that transport it, the geomorphology and landscape context of the recipient beaches, and the condition, life history and morphological characteristics of the macrophyte taxa that are the ultimate source of wrack. When retained in beach ecosystems, wrack often creates hotspots of microbial metabolism, secondary productivity, biodiversity, and nutrient remineralization. Nutrients are produced during wrack breakdown, and these can return to coastal waters in surface flows (swash) and aquifers discharging into the subtidal surf. Beach-cast kelp often plays a key trophic role, being an abundant and preferred food source for mobile, semi-aquatic invertebrates that channel imported algal matter to predatory invertebrates, fish, and birds. The role of beach-cast marine carrion is likely to be underestimated, as it can be consumed rapidly by highly mobile scavengers (e.g. foxes, coyotes, raptors, vultures). These consumers become important vectors in transferring marine productivity inland, thereby linking marine and terrestrial ecosystems. Whilst deposits of organic matter on sandy-beach ecosystems underpin a range of ecosystem functions and services, they can be at variance with aesthetic perceptions resulting in widespread activities, such as 'beach cleaning and grooming'. This practice diminishes the energetic base of food webs, intertidal fauna, and biodiversity. Global declines in seagrass beds and kelp forests (linked to global warming) are predicted to cause substantial reductions in the amounts of marine organic matter reaching many beach ecosystems, likely causing flow-on effects for food webs and biodiversity. Similarly, future sea-level rise and increased storm frequency are likely to alter profoundly the physical attributes of beaches, which in turn can change the rates at which beaches retain and process the influxes of wrack and animal carcasses. Conservation of the multi-faceted ecosystem services that sandy beaches provide will increasingly need to encompass a greater societal appreciation and the safeguarding of ecological functions reliant on beach-cast organic matter on innumerable ocean shores worldwide.
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Affiliation(s)
- Glenn A. Hyndes
- Centre for Marine Ecosystems Research, School of ScienceEdith Cowan UniversityJoondalupWestern AustraliaAustralia
| | - Emma L. Berdan
- Department of Marine SciencesUniversity of GothenburgGöteborgSweden
| | - Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile
| | - Jenifer E. Dugan
- Marine Science InstituteUniversity of CaliforniaSanta BarbaraCA93106USA
| | - Kyle A. Emery
- Marine Science InstituteUniversity of CaliforniaSanta BarbaraCA93106USA
| | - Peter A. Hambäck
- Department of Ecology, Environment and Plant SciencesStockholm UniversityStockholmSweden
| | - Christopher J. Henderson
- School of Science, Technology, and EngineeringUniversity of the Sunshine CoastMaroochydoreQueenslandAustralia
| | - David M. Hubbard
- Marine Science InstituteUniversity of CaliforniaSanta BarbaraCA93106USA
| | - Mariano Lastra
- Centro de Investigación Mariña, Edificio CC ExperimentaisUniversidade de Vigo, Campus de Vigo36310VigoSpain
| | - Miguel A. Mateo
- Centre for Marine Ecosystems Research, School of ScienceEdith Cowan UniversityJoondalupWestern AustraliaAustralia,Centro de Estudios Avanzados de Blanes, Consejo Superior de Investigaciones CientíficasBlanesSpain
| | - Andrew Olds
- School of Science, Technology, and EngineeringUniversity of the Sunshine CoastMaroochydoreQueenslandAustralia
| | - Thomas A. Schlacher
- School of Science, Technology, and EngineeringUniversity of the Sunshine CoastMaroochydoreQueenslandAustralia
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199
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DiBattista JD, Shalders TC, Reader S, Hay A, Parkinson K, Williams RJ, Stuart-Smith J, McGrouther M. A comprehensive analysis of all known fishes from Sydney Harbour. MARINE POLLUTION BULLETIN 2022; 185:114239. [PMID: 36274563 DOI: 10.1016/j.marpolbul.2022.114239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Fishes represent an important natural resource and yet their diversity and function in dynamic estuaries with relatively high levels of human pressure such as Sydney Harbour have rarely been quantified. Further, Eastern Australia supports the survival and persistence of an increasing number of tropical species found within temperate estuaries owing to increasing average ocean temperatures. A re-valuation of the number of fish species known from Sydney Harbour is therefore needed. In this study, we generated an up-to-date and annotated checklist of fishes recorded from Sydney Harbour based on verified natural history records as well as newly available citizen science records based on opportunistic observations and structured surveys. We explored the spatial and temporal distribution of these records. In addition, we quantified the function, conservation status, and commercial importance of the identified fishes. The number of fish species recorded from Sydney Harbour now stands at 675, an increase of 89 species (15 %) when compared to the most recent evaluation in 2013. We attribute this increase in fish diversity over a relatively short time to the contribution of newer citizen science programs as well as the influx and survival of fishes in the Harbour with preferences for warmer waters. Some fish families were also overrepresented in the more urbanized and polluted sections of the Harbour. In forecasting further environmental impacts on the fishes of Sydney Harbour, we recommend increased integration of collaborative citizen science programs and natural history collections as a means to track these changes.
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Affiliation(s)
- Joseph D DiBattista
- Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.
| | - Tanika C Shalders
- National Marine Science Centre, Southern Cross University, Faculty of Science and Engineering, Coffs Harbour, NSW 2450, Australia
| | - Sally Reader
- Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.
| | - Amanda Hay
- Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.
| | - Kerryn Parkinson
- Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.
| | - Robert J Williams
- New South Wales Department of Primary Industries - Fisheries, Australia
| | - Jemina Stuart-Smith
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart 7001, Australia.
| | - Mark McGrouther
- Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.
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200
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El-Hamid HTA, Eid EM, El-Morsy MH, Osman HE, Keshta AE. Benefits of Blue Carbon Stocks in a Coastal Jazan Ecosystem Undergoing Land Use Change. WETLANDS 2022; 42:103. [DOI: 10.1007/s13157-022-01597-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/29/2022] [Indexed: 09/02/2023]
Abstract
AbstractCoastal ecosystems are characterized by high content of soil carbon storage; however, they experience severe land conversions in the past decades. The current study aims to examine how different land use/land cover (LU/LC) impact carbon stock in coastal ecosystem along Jazan coast, Saudi Arabia. In this study, impacts of LU/LC on carbon stocks in the coastal zone of Jazan, Saudi Arabia in 2009, 2013, and 2021 were assessed. Also, the LU/LC dynamics were evaluated using data provided by the land use dynamic model. The carbon stocks were modelled based on LU/LC using the InVEST program. Our study results showed that the decrease in mangroves from 2013 to 2021 reflects the high atmospheric emissions of carbon dioxide (CO2). Also, the increase in built-up areas might negatively impact total carbon stock. The estimated carbon stocks for the coastal zone of Jazan biome were 7279027.42 Mg C in 2009 (1Mg = 106 g). It decreased to 2827817.84 Mg C in 2013, with a total loss of − 4450675.40 Mg C, and an average of annual loss of − 1,112,669 Mg C in the study period with net value of − 461240790.53 US$. On the other hand, the total estimated carbon stock was increased from 2013 to 2021 with a 3772968.31 Mg C in 2021 (a total gain 944840.87 Mg C). Based on the current findings, we recommend that land-use-policy makers and environmental government agencies should implement conservation policies to reduce land use change at Jazan coastal ecosystems.
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