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Charted changes in salt-marsh areas and related carbon emissions. Nature 2022:10.1038/d41586-022-03637-0. [PMID: 36450953 DOI: 10.1038/d41586-022-03637-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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202
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Mossman HL, Pontee N, Born K, Hill C, Lawrence PJ, Rae S, Scott J, Serato B, Sparkes RB, Sullivan MJP, Dunk RM. Rapid carbon accumulation at a saltmarsh restored by managed realignment exceeded carbon emitted in direct site construction. PLoS One 2022; 17:e0259033. [PMID: 36449465 PMCID: PMC9710768 DOI: 10.1371/journal.pone.0259033] [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: 10/08/2021] [Accepted: 09/22/2022] [Indexed: 12/02/2022] Open
Abstract
Increasing attention is being paid to the carbon sequestration and storage services provided by coastal blue carbon ecosystems such as saltmarshes. Sites restored by managed realignment, where existing sea walls are breached to reinstate tidal inundation to the land behind, have considerable potential to accumulate carbon through deposition of sediment brought in by the tide and burial of vegetation in the site. While this potential has been recognised, it is not yet a common motivating factor for saltmarsh restoration, partly due to uncertainties about the rate of carbon accumulation and how this balances against the greenhouse gases emitted during site construction. We use a combination of field measurements over four years and remote sensing to quantify carbon accumulation at a large managed realignment site, Steart Marshes, UK. Sediment accumulated rapidly at Steart Marshes (mean of 75 mm yr-1) and had a high carbon content (4.4% total carbon, 2.2% total organic carbon), resulting in carbon accumulation of 36.6 t ha-1 yr-1 total carbon (19.4 t ha-1 yr-1 total organic carbon). This rate of carbon accumulation is an order of magnitude higher than reported in many other restored saltmarshes, and is somewhat higher than values previously reported from another hypertidal system (Bay of Fundy, Canada). The estimated carbon emissions associated with the construction of the site were ~2-4% of the observed carbon accumulation during the study period, supporting the view that managed realignment projects in such settings may have significant carbon accumulation benefits. However, uncertainties such as the origin of carbon (allochthonous or autochthonous) and changes in gas fluxes need to be resolved to move towards a full carbon budget for saltmarsh restoration.
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Affiliation(s)
- Hannah L. Mossman
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
- * E-mail:
| | - Nigel Pontee
- Jacobs, Bristol, United Kingdom
- University of Southampton, Southampton, United Kingdom
| | | | - Colin Hill
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Peter J. Lawrence
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
- School of Ocean Sciences, Bangor University, Menai Bridge, United Kingdom
- Institute of Science and Environment, University of Cumbria, Ambleside, United Kingdom
| | - Stuart Rae
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | | | | | - Robert B. Sparkes
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Martin J. P. Sullivan
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Rachel M. Dunk
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom
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203
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Eagle MJ, Kroeger KD, Spivak AC, Wang F, Tang J, Abdul-Aziz OI, Ishtiaq KS, O'Keefe Suttles J, Mann AG. Soil carbon consequences of historic hydrologic impairment and recent restoration in coastal wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157682. [PMID: 35917962 DOI: 10.1016/j.scitotenv.2022.157682] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/01/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Coastal wetlands provide key ecosystem services, including substantial long-term storage of atmospheric CO2 in soil organic carbon pools. This accumulation of soil organic matter is a vital component of elevation gain in coastal wetlands responding to sea-level rise. Anthropogenic activities that alter coastal wetland function through disruption of tidal exchange and wetland water levels are ubiquitous. This study assesses soil vertical accretion and organic carbon accretion across five coastal wetlands that experienced over a century of impounded hydrology, followed by restoration of tidal exchange 5 to 14 years prior to sampling. Nearby marshes that never experienced tidal impoundment served as controls with natural hydrology to assess the impact of impoundment and restoration. Dated soil cores indicate that elevation gain and carbon storage were suppressed 30-70 % during impoundment, accounting for the majority of elevation deficit between impacted and natural sites. Only one site had substantial subsidence, likely due to oxidation of soil organic matter. Vertical and carbon accretion gains were achieved at all restored sites, with carbon burial increasing from 96 ± 33 to 197 ± 64 g C m-2 y-1. The site with subsidence was able to accrete at double the rate (13 ± 5.6 mm y-1) of the natural complement, due predominantly to organic matter accumulation rather than mineral deposition, indicating these ecosystems are capable of large dynamic responses to restoration when conditions are optimized for vegetation growth. Hydrologic restoration enhanced elevation resilience and climate benefits of these coastal wetlands.
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Affiliation(s)
- Meagan J Eagle
- U. S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA 02543, USA.
| | - Kevin D Kroeger
- U. S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA 02543, USA
| | - Amanda C Spivak
- Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA
| | - Faming Wang
- Marine Biological Laboratory, Woods Hole, MA 02543, USA; Xiaoliang Research Station for Tropical Coastal Ecosystems, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, and the CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Jianwu Tang
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | | | - Khandker S Ishtiaq
- West Virginia University, Morgantown, WV 26506-6103, USA; Institute of Environment, Florida International University, Miami, Florida, USA
| | - Jennifer O'Keefe Suttles
- U. S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA 02543, USA
| | - Adrian G Mann
- U. S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, MA 02543, USA
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204
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Hu W, Zheng X, Li Y, Du J, Lv Y, Su S, Xiao B, Ye X, Jiang Q, Tan H, Liao B, Chen B. High vulnerability and a big conservation gap: Mapping the vulnerability of coastal scleractinian corals in South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 847:157363. [PMID: 35843331 DOI: 10.1016/j.scitotenv.2022.157363] [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: 04/19/2022] [Revised: 06/29/2022] [Accepted: 07/10/2022] [Indexed: 06/15/2023]
Abstract
Scleractinian corals build the most complex and diverse ecosystems in the ocean with various ecosystem services, yet continue to be degraded by natural and anthropogenic stressors. Despite the rapid decline in scleractinian coral habitats in South China, they are among the least concerning in global coral vulnerability maps. This study developed a rapid assessment approach that combines vulnerability components and species distribution models to map coral vulnerability within a large region based on limited data. The approach contained three aspects including, exposure, habitat suitability, and coral-conservation-based adaptive capacity. The exposure assessment was based on seven indicators, and the habitat suitability was mapped using Maximum Entropy and Random Forest models. Vulnerability of scleractinian corals in South China was spatially evaluated using the approach developed here. The results showed that the average exposure of the study region was 0.62, indicating relatively high pressure. The highest exposure occurred from the east coast of the Leizhou Peninsula to the Pearl River Estuary. Aquaculture and shipping were the most common causes of exposure. Highly suitable habitats for scleractinian corals are concentrated between 18°N-22°N. Only 21.6 % of the potential coral habitats are included in marine protected areas, indicating that there may still be large conservation gaps for scleractinian corals in China. In total, 37.7 % of the potential coral habitats were highly vulnerable, with the highest vulnerability appearing in the Guangdong Province. This study presents the first attempt to map the vulnerability of scleractinian corals along the coast of South China. The proposed approach and findings provide an essential tool and information supporting the sustainable management and conservation of coral reef ecosystems, addressing an important gap on the world's coral reef vulnerability map.
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Affiliation(s)
- Wenjia Hu
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; Observation and Research Station of Island and Coastal Ecosystems in the Western Taiwan Strait, Ministry of Natural Resources, Xiamen 361005, China; Fujian Provincial Station for Field Observation and Research of Island and Coastal Zone, Zhangzhou 363216, China
| | - Xinqing Zheng
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; Observation and Research Station of Island and Coastal Ecosystems in the Western Taiwan Strait, Ministry of Natural Resources, Xiamen 361005, China; Fujian Provincial Station for Field Observation and Research of Island and Coastal Zone, Zhangzhou 363216, China; Observation and Research Station of wetland Ecosystem in the Beibu Gulf, Ministry of Natural Resources, Xiamen 361005, China.
| | - Yuanchao Li
- Hainan Academy of Ocean and Fisheries Sciences, Haikou 571199, China
| | - Jianguo Du
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; Observation and Research Station of Island and Coastal Ecosystems in the Western Taiwan Strait, Ministry of Natural Resources, Xiamen 361005, China; Fujian Provincial Station for Field Observation and Research of Island and Coastal Zone, Zhangzhou 363216, China
| | - Yihua Lv
- South China Sea Environmental Monitoring Center, State Oceanic Administration, Guangzhou 528248, China
| | - Shangke Su
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Baohua Xiao
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Xiaomin Ye
- Key Laboratory of Space Ocean Remote Sensing and Application, National Satellite Ocean Application Service, Ministry of Natural Resources, Beijing 100081, China
| | - Qutu Jiang
- Department of Geography, The University of Hong Kong, Hong Kong 999077, China
| | - Hongjian Tan
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Baolin Liao
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Bin Chen
- Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; Observation and Research Station of Island and Coastal Ecosystems in the Western Taiwan Strait, Ministry of Natural Resources, Xiamen 361005, China; Fujian Provincial Station for Field Observation and Research of Island and Coastal Zone, Zhangzhou 363216, China; Observation and Research Station of wetland Ecosystem in the Beibu Gulf, Ministry of Natural Resources, Xiamen 361005, China.
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205
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Coastal engineering infrastructure impacts Blue Carbon habitats distribution and ecosystem functions. Sci Rep 2022; 12:19352. [PMID: 36369255 PMCID: PMC9652279 DOI: 10.1038/s41598-022-23216-7] [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: 03/14/2022] [Accepted: 10/26/2022] [Indexed: 11/13/2022] Open
Abstract
Intertidal estuarine habitats (e.g., saltmarshes and tidal flats) provide important ecosystem services to society, including coastal protection, food provision and Corg sequestration. Yet, estuaries and estuarine habitats have been subjected to intense human pressure, such as land-use change and artificialization of the shoreline to support economic activities and uses. Construction of engineering infrastructures (e.g., piers, bridges) in these areas alters estuary-wide hydromorphological conditions and thus sedimentation patterns at the estuarine scale, which are key drivers of habitats distribution and ecosystem structure, processes and functions. Most of the research on the impact of civil engineering structures on coastal habitats has focused on the biological communities that colonize them or the bottoms where they are placed, whereas their indirect impacts on adjacent habitats has been largely unexplored. Understanding the influence of man-made infrastructures on the distribution of estuarine habitats and functions is critical, particularly considering that shoreline armoring is expected to increase as a way to protect coastal areas from hazards derived from climate change. Shifts in habitat distribution and functions occur in several years or decades and relating them with the occurrence of past historical events is challenging when no monitoring data is available. By examining historical aerial photographs and different biogeochemical properties along a saltmarsh soil record, this study demonstrates that the construction of an infrastructure (i.e. bridge) caused a rapid transformation (~ 30 years) of a bare sandflat into a high marsh community and to significant changes in sediment biogeochemical properties, including the decrease in sediment accretion rate and Corg burial rates since then. This study contributes to increase the knowledge on the impact that the construction in coastal areas of civil engineering infrastructures can cause in intertidal habitats distribution and the ecological functions they provide for climate change adaption and mitigation.
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206
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Aranda M, Peralta G, Montes J, Gracia FJ, Fivash GS, Bouma TJ, van der Wal D. Salt marsh fragmentation in a mesotidal estuary: Implications for medium to long-term management. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 846:157410. [PMID: 35850332 DOI: 10.1016/j.scitotenv.2022.157410] [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: 03/03/2022] [Revised: 06/07/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
During the last decades many salt marshes worldwide have suffered important losses in their extent and associated ecosystem services. The salt marshes of San Vicente de la Barquera estuary (N Spain) are a clear example of this, with a drastic reduction in vegetation surface over the last 60 years. This paper provides insights into the main factors controlling salt marsh functioning in sheltered estuarine areas. Regional and local factors have been disaggregated to identify the main drivers controlling the functioning of the salt marsh to develop appropriate management measures according to the evolution of the system. These factors have been studied in their spatial context through detailed maps of change in vegetation cover combined with topographic data obtained from UAV and RTK-DGPS surveys. The results demonstrate that in this estuary the salt marsh area is declining following a fragmentation process. No clear pattern of vegetation loss/gain with elevation has been identified. However, the results point to increased hydrodynamic stress in the area, with stronger currents inside the estuary. This is probably the major factor responsible for the decline of the salt marshes in the San Vicente de la Barquera estuary. Furthermore, several human interventions during the 20th century (local drivers) have also probably contributed to a lower resilience against SLR (regional driver). This work demonstrates that both natural and human drivers of change need to be considered when characterizing the evolution of salt marshes, wherever efficient management strategies need to be designed.
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Affiliation(s)
- M Aranda
- Department of Earth Sciences, Faculty of Marine and Environmental Sciences, University of Cádiz, Avenida República Árabe Saharawi, s/n, 11510 Puerto Real, Cádiz, Spain.
| | - G Peralta
- Department of Biology, Faculty of Marine and Environmental Sciences, University of Cádiz, Avenida República Árabe Saharawi, s/n, 11510 Puerto Real, Cádiz, Spain
| | - J Montes
- Department of Earth Sciences, Faculty of Marine and Environmental Sciences, University of Cádiz, Avenida República Árabe Saharawi, s/n, 11510 Puerto Real, Cádiz, Spain
| | - F J Gracia
- Department of Earth Sciences, Faculty of Marine and Environmental Sciences, University of Cádiz, Avenida República Árabe Saharawi, s/n, 11510 Puerto Real, Cádiz, Spain
| | - G S Fivash
- Department of Estuarine and Delta systems, NIOZ Royal Netherlands Institute for Sea Research, 140, 4400 AC Yerseke, the Netherlands; Groningen Institute for Evolutionary Life Sciences, Community and Conservation Ecology Group, University of Groningen, Nijenborgh 7, Groningen 9747 AG, the Netherlands
| | - T J Bouma
- Department of Estuarine and Delta systems, NIOZ Royal Netherlands Institute for Sea Research, 140, 4400 AC Yerseke, the Netherlands; Groningen Institute for Evolutionary Life Sciences, Community and Conservation Ecology Group, University of Groningen, Nijenborgh 7, Groningen 9747 AG, the Netherlands; Department of Physical Geography, Faculty of Geosciences, Utrecht University, Princetonlaan 8a, Utrecht 3584 CB, the Netherlands
| | - D van der Wal
- Department of Estuarine and Delta systems, NIOZ Royal Netherlands Institute for Sea Research, 140, 4400 AC Yerseke, the Netherlands; Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 217, 7500 AE Enschede, the Netherlands
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207
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Jamali A, Mahdianpari M, Brisco B, Mao D, Salehi B, Mohammadimanesh F. 3DUNetGSFormer: A deep learning pipeline for complex wetland mapping using generative adversarial networks and Swin transformer. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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208
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Le JT, Girguis PR, Levin LA. Using deep-sea images to examine ecosystem services associated with methane seeps. MARINE ENVIRONMENTAL RESEARCH 2022; 181:105740. [PMID: 36155343 DOI: 10.1016/j.marenvres.2022.105740] [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: 02/07/2022] [Revised: 08/27/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Deep-sea images are routinely collected during at-sea expeditions and represent a repository of under-utilized knowledge. We leveraged dive videos collected by the remotely-operated vehicle Hercules (deployed from E/V Nautilus, operated by the Ocean Exploration Trust), and adapted biological trait analysis, to develop an approach that characterizes ecosystem services. Specifically, fisheries and climate-regulating services related to carbon are assessed for three southern California methane seeps: Point Dume (∼725 m), Palos Verdes (∼506 m), and Del Mar (∼1023 m). Our results enable qualitative intra-site comparisons that suggest seep activity influences ecosystem services differentially among sites, and site-to-site comparisons that suggest the Del Mar site provides the highest relative contributions to fisheries and carbon services. This study represents a first step towards ecosystem services characterization and quantification using deep-sea images. The results presented herein are foundational, and continued development should help guide research and management priorities by identifying potential sources of ecosystem services.
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Affiliation(s)
- Jennifer T Le
- Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, University of California San Diego, La Jolla, 92093, USA.
| | - Peter R Girguis
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, 02138, USA
| | - Lisa A Levin
- Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, University of California San Diego, La Jolla, 92093, USA
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209
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Xu W, He M, Meng W, Zhang Y, Yun H, Lu Y, Huang Z, Mo X, Hu B, Liu B, Li H. Temporal-spatial change of China's coastal ecosystems health and driving factors analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157319. [PMID: 35839892 DOI: 10.1016/j.scitotenv.2022.157319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Understanding the spatial distribution pattern change and driving factors behind ecosystem health is essential to ecosystem management and restoration. However, in the research of regional ecosystem health, there is little research on ecosystem health in coastal regions, and there is little exploration of its temporal and spatial pattern change and its driving factors. In this study, we use the Vigor-Organization-Resilience-Services (VORS) model and marine ecosystem health index to diagnose the ecosystem health of the whole coastal area of China over the last 20 years, and find the main contributing factors affecting ecosystem health with the help of geographic detectors and geographic weighted regression analysis. Our results show that: (1) the ecosystem health level in the south of the coastal region is higher than that in the north, mainly with 30° north latitude as the main dividing line. (2) The regions with high change rate are mainly concentrated in Bohai Bay, the Yangtze River Estuary, Hangzhou Bay and the Pearl River Estuary, and the change is mainly negative. (3) Both natural and human factors have an impact on ecosystem health, and the influencing factors are different on different scales. The interaction between different factors is greater than the impact of a single factor on ecosystem health. The study puts forward a new evaluation framework for the study of ecosystem health in coastal areas, which can be applied to other coastal areas with similar conditions, and can help the sustainable and healthy development of coastal areas.
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Affiliation(s)
- Wenbin Xu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Mengxuan He
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China.
| | - Weiqing Meng
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Ying Zhang
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Haofan Yun
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Yalan Lu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Zhimei Huang
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Xunqiang Mo
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Beibei Hu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Baiqiao Liu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Hongyuan Li
- College of Environment Science and Engineering, Nankai University, Tianjin 300350, China
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210
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Wei Y, Ding D, Qu K, Sun J, Cui Z. Ecological risk assessment of heavy metal pollutants and total petroleum hydrocarbons in sediments of the Bohai Sea, China. MARINE POLLUTION BULLETIN 2022; 184:114218. [PMID: 36242800 DOI: 10.1016/j.marpolbul.2022.114218] [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: 09/04/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Heavy metals and organic pollutants like total petroleum hydrocarbons (TPHs) in coastal marine sediments are receiving extensive attention, as they may pose a serious threat to the aquatic environment and ecosystem health. To date, however, data on the long-term variations in the levels of sedimentary heavy metals and TPHs as well as their ecological risks are relatively limited. Here, we conducted 12 cruises spanning 3 years in the Bohai Sea and obtained ~1400 sediment samples to explore the long-term variations of heavy metals (i.e., Hg, As, Cu, Zn, Pb, Cd) and TPHs, and to assess their potential ecological risks. The results suggested that the ranges for the levels of Hg, As, Cu, Zn, Pb, Cd, and TPHs in sediments between 2019 and 2021 were <0.01-0.07, 0.23-10.72, 8.07-20.67, 25.52-46.55, 10.94-28.19, 0.14-0.56, and 9.14-18.41 mg kg-1, respectively. Based on the single factor evaluation (Fi) for sediment quality, we found that most of the evaluation factors in the study area met the requirements of sediment quality standard (i.e., Fi < 1), except for the factor of metal Cd in some cases. The implication is that the sediment in the Bohai Sea was fairly clean in terms of heavy metals and TPHs. However, the concentration of metal Cd exceeded the sediment quality standard during May 2019 and 2020 (i.e., Fi > 1), indicating that Cd could be identified as a major pollutant in surface sediments. Also, based on the ecological risk assessment (Ei) of heavy metal pollutants, we found that the metal Cd had reached a level with potential ecological risk in some cases (80 ≤ Ei < 160). As such, we further suggested that the Cd contamination might have a potential risk on the Bohai Sea' ecosystem.
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Affiliation(s)
- Yuqiu Wei
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Dongsheng Ding
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Keming Qu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Jun Sun
- Institute for Advanced Marine Research, China University of Geosciences, Guangzhou 511462, China; Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhengguo Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
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211
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Jamal E, Reichelt-Brushett A, Benkendorff K. Exposure to multiple elements reduces the health of Saccostrea glomerata: An assessment of the Richmond River estuary, NSW, Australia. MARINE POLLUTION BULLETIN 2022; 184:114177. [PMID: 36191472 DOI: 10.1016/j.marpolbul.2022.114177] [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: 06/21/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
This study investigated relationships between Sydney Rock Oyster (SRO) health and element concentrations in sediments and oysters from the Richmond River estuary. Six sites were sampled between November 2019 and May 2020. Multivariate permutational analysis of variance was used to compare oyster health parameters and element concentrations between sites, wet and dry conditions, and in oyster and sediment samples. Statistical analysis revealed significant spatial differences in oyster mortality, condition index, and size. Metal concentrations in oyster flesh significantly differed from metals in sediments. Most metals in sediments were below guideline values, except for Ni at some sites. Mortality, condition index, and weight correlated negatively with individual elements in oyster flesh (P, Zn, Mg, Al, Ni). BEST statistical models included various combinations of metals in sediment and flesh. This study highlights that spatial differences in SRO health tend to be related to site-specific metal compositions in sediment and oysters.
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Affiliation(s)
- Endang Jamal
- Faculty of Science and Engineering, Southern Cross University, Australia; Faculty of Fisheries and Marine Science, Pattimura University, Indonesia
| | | | - Kirsten Benkendorff
- National Marine Science Centre, Faculty of Science and Engineering, Southern Cross University, Australia
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212
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Qiao Y, Zhang Y, Xu S, Yue S, Zhang X, Liu M, Sun L, Jia X, Zhou Y. Multi-leveled insights into the response of the eelgrass Zostera marina L to Cu than Cd exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157057. [PMID: 35780896 DOI: 10.1016/j.scitotenv.2022.157057] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/06/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Seagrass beds are recognized as critical and among the most vulnerable habitats on the planet; seagrass colonize the coastal waters where heavy metal pollution is a serious problem. In this study, the toxic effects of copper and cadmium in the eelgrass Zostera marina L. were observed at the individual, subcellular, physiologically biochemical, and molecular levels. Both Cu and Cd stress significantly inhibited the growth and the maximal quantum yield of photosystem II (Fv/Fm); and high temperature increased the degree of heavy metal damage, while low temperatures inhibited damage. The half-effect concentration (EC50) of eelgrass was 28.9 μM for Cu and 2246.8 μM for Cd, indicating Cu was much more toxic to eelgrass than Cd. The effect of Cu and Cd on photosynthesis was synergistic. After 14 days of enrichment, the concentration of Cu in leaves and roots of Z. marina was 48 and 37 times higher than that in leaf sheath, and 14 and 11 times higher than that in rhizome; and the order of Cd concentration in the organs was root > leaf > rhizome > sheath. Heavy metal uptake mainly occurred in the organelles, and Cd enrichment also occurred to a certain extent in the cytoplasm. Transcriptome results showed that a number of photosynthesis-related KEGG enrichment pathways and GO terms were significantly down-regulated under Cd stress, suggesting that the photosynthetic system of eelgrass was severely damaged at the transcriptome level, which was consistent with the significant inhibition of Fv/Fm and leaf yellowing. Under Cu stress, the genes related to glutathione metabolic pathway were significantly up-regulated, together with the increased autioxidant enzyme activity of GSH-PX. In addition, the results of recovery experiment indicated that the damage caused by short-term Cd and Cu stress under EC50 was reversible. These results provide heavy metal toxic effects at multiple levels and information relating to the heavy metal resistance strategies evolved by Z. marina to absorb and isolate heavy metals, and highlight the phytoremediation potential of this species especially for Cd.
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Affiliation(s)
- Yongliang Qiao
- School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Yu Zhang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Shaochun Xu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Shidong Yue
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Xiaomei Zhang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Mingjie Liu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Lingling Sun
- Public Tech-Supporting Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xiaoping Jia
- School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Yi Zhou
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China.
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213
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Sedimentary Organic Carbon and Nitrogen Sequestration Across a Vertical Gradient on a Temperate Wetland Seascape Including Salt Marshes, Seagrass Meadows and Rhizophytic Macroalgae Beds. Ecosystems 2022. [DOI: 10.1007/s10021-022-00801-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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214
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Monteforte KIP, Butcher PA, Morris SG, Kelaher BP. The Relative Abundance and Occurrence of Sharks off Ocean Beaches of New South Wales, Australia. BIOLOGY 2022; 11:biology11101456. [PMID: 36290360 PMCID: PMC9599013 DOI: 10.3390/biology11101456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/15/2022] [Accepted: 09/29/2022] [Indexed: 11/05/2022]
Abstract
There is still limited information about the diversity, distribution, and abundance of sharks in and around the surf zones of ocean beaches. We used long-term and large-scale drone surveying techniques to test hypotheses about the relative abundance and occurrence of sharks off ocean beaches of New South Wales, Australia. We quantified sharks in 36,384 drone flights across 42 ocean beaches from 2017 to 2021. Overall, there were 347 chondrichthyans recorded, comprising 281 (81.0%) sharks, with observations occurring in <1% of flights. Whaler sharks (Carcharhinus spp.) had the highest number of observations (n = 158) recorded. There were 34 individuals observed for both white sharks (Carcharodon carcharias) and critically endangered greynurse sharks (Carcharias taurus). Bull sharks (Carcharhinus leucas), leopard sharks (Stegostoma tigrinum) and hammerhead species (Sphyrna spp.) recorded 29, eight and three individuals, respectively. Generalised additive models were used to identify environmental drivers for detection probability of white, bull, greynurse, and whaler sharks. Distances to the nearest estuary, headland, and island, as well as water temperature and wave height, were significant predictors of shark occurrence; however, this varied among species. Overall, we provide valuable information for evidence-based species-specific conservation and management strategies for coastal sharks.
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Affiliation(s)
- Kim I. P. Monteforte
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia
- Correspondence:
| | - Paul A. Butcher
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia
- NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, NSW 2450, Australia
| | - Stephen G. Morris
- NSW Department of Primary Industries, Wollongbar, NSW 2477, Australia
| | - Brendan P. Kelaher
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia
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215
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The Microbially Extended Phenotype of Plants, a Keystone against Abiotic Stress. THE EUROBIOTECH JOURNAL 2022. [DOI: 10.2478/ebtj-2022-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Abstract
Background: Climate change affects every region across the globe with heterogeneous effects on local temperatures and precipitation patterns. In plants, sessile organisms, climate change imposes more drastic effects leading to loss of yield or even death. However, plants establish mutualistic interactions with microorganisms that boost plant tolerance against abiotic stresses or strengthen the plant immune system against pathogens, thus, enhancing their survival and fitness. Moreover, in the wild, microbial endophytes provide important ecosystem services.
Purpose and scope: Little we know about the mechanisms of response against the adverse effects of climate change on natural populations of wild plants and even less about the potential role played by microbial biostimulants. In this article, we review the effects of biostimulants on plant responses against abiotic stresses, with a particular focus on the role of mycorrhizas and leaf endophytes.
Results: We have reviewed the effects of the main abiotic stresses in plants, the mechanisms that plants use to face these abiotic challenges, and the interaction plant-biostimulant-abiotic stress, highlighting the primary responses and parameters to evaluate different plant responses.
Conclusion: Abiotic stresses can check the phenotypic plasticity of plants and also trigger a complex and heterogeneous array of responses to face different abiotic stresses, and beneficial microorganisms do play an essential role in enhancing such responses. Our laboratory has initiated a project to characterise microbial populations associated with plants from wild areas and analyse their potential role in aiding the plants to cope with abiotic stresses.
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216
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Predicting shifts in demography of Orbicella franksi following simulated disturbance and restoration. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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217
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Dahdouh-Guebas F, Friess DA, Lovelock CE, Connolly RM, Feller IC, Rogers K, Cannicci S. Cross-cutting research themes for future mangrove forest research. NATURE PLANTS 2022; 8:1131-1135. [PMID: 36241736 DOI: 10.1038/s41477-022-01245-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Farid Dahdouh-Guebas
- Systems Ecology and Resource Management Research Unit (SERM), Department of Organism Biology, Université Libre de Bruxelles - ULB, Brussels, Belgium.
- Ecology & Biodiversity, Laboratory of Plant Biology and Nature Management, Biology Department, Vrije Universiteit Brussel - VUB, Brussels, Belgium.
- Mangrove Specialist Group (MSG), Species Survival Commission (SSC), International Union for the Conservation of Nature (IUCN), Zoological Society of London, London, UK.
- Interfaculty Institute of Social-Ecological Transitions, Université Libre de Bruxelles - ULB, Brussels, Belgium.
| | - Daniel A Friess
- Mangrove Specialist Group (MSG), Species Survival Commission (SSC), International Union for the Conservation of Nature (IUCN), Zoological Society of London, London, UK
- Department of Geography, National University of Singapore, Singapore, Singapore
- Centre for Nature-based Climate Solutions, National University of Singapore, Singapore, Singapore
| | - Catherine E Lovelock
- Mangrove Specialist Group (MSG), Species Survival Commission (SSC), International Union for the Conservation of Nature (IUCN), Zoological Society of London, London, UK
- School of Biological Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - Rod M Connolly
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - Ilka C Feller
- Mangrove Specialist Group (MSG), Species Survival Commission (SSC), International Union for the Conservation of Nature (IUCN), Zoological Society of London, London, UK
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - Kerrylee Rogers
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, New South Wales, Australia
| | - Stefano Cannicci
- Mangrove Specialist Group (MSG), Species Survival Commission (SSC), International Union for the Conservation of Nature (IUCN), Zoological Society of London, London, UK
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
- Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, Hong Kong, China
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218
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Glidden CK, Field LC, Bachhuber S, Hennessey SM, Cates R, Cohen L, Crockett E, Degnin M, Feezell MK, Fulton‐Bennett HK, Pires D, Poirson BN, Randell ZH, White E, Gravem SA. Strategies for managing marine disease. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2643. [PMID: 35470930 PMCID: PMC9786832 DOI: 10.1002/eap.2643] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
The incidence of emerging infectious diseases (EIDs) has increased in wildlife populations in recent years and is expected to continue to increase with global environmental change. Marine diseases are relatively understudied compared with terrestrial diseases but warrant parallel attention as they can disrupt ecosystems, cause economic loss, and threaten human livelihoods. Although there are many existing tools to combat the direct and indirect consequences of EIDs, these management strategies are often insufficient or ineffective in marine habitats compared with their terrestrial counterparts, often due to fundamental differences between marine and terrestrial systems. Here, we first illustrate how the marine environment and marine organism life histories present challenges and opportunities for wildlife disease management. We then assess the application of common disease management strategies to marine versus terrestrial systems to identify those that may be most effective for marine disease outbreak prevention, response, and recovery. Finally, we recommend multiple actions that will enable more successful management of marine wildlife disease emergencies in the future. These include prioritizing marine disease research and understanding its links to climate change, improving marine ecosystem health, forming better monitoring and response networks, developing marine veterinary medicine programs, and enacting policy that addresses marine and other wildlife diseases. Overall, we encourage a more proactive rather than reactive approach to marine wildlife disease management and emphasize that multidisciplinary collaborations are crucial to managing marine wildlife health.
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Affiliation(s)
- Caroline K. Glidden
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
- Present address:
Department of BiologyStanford UniversityStanfordCaliforniaUSA
| | - Laurel C. Field
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
| | - Silke Bachhuber
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
| | | | - Robyn Cates
- College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | - Lesley Cohen
- College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | - Elin Crockett
- College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | - Michelle Degnin
- College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | - Maya K. Feezell
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
| | | | - Devyn Pires
- College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | | | - Zachary H. Randell
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
| | - Erick White
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
| | - Sarah A. Gravem
- Department of Integrative BiologyOregon State UniversityCorvallisOregonUSA
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219
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McDowell NG, Ball M, Bond‐Lamberty B, Kirwan ML, Krauss KW, Megonigal JP, Mencuccini M, Ward ND, Weintraub MN, Bailey V. Processes and mechanisms of coastal woody-plant mortality. GLOBAL CHANGE BIOLOGY 2022; 28:5881-5900. [PMID: 35689431 PMCID: PMC9544010 DOI: 10.1111/gcb.16297] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/24/2022] [Indexed: 05/26/2023]
Abstract
Observations of woody plant mortality in coastal ecosystems are globally widespread, but the overarching processes and underlying mechanisms are poorly understood. This knowledge deficiency, combined with rapidly changing water levels, storm surges, atmospheric CO2 , and vapor pressure deficit, creates large predictive uncertainty regarding how coastal ecosystems will respond to global change. Here, we synthesize the literature on the mechanisms that underlie coastal woody-plant mortality, with the goal of producing a testable hypothesis framework. The key emergent mechanisms underlying mortality include hypoxic, osmotic, and ionic-driven reductions in whole-plant hydraulic conductance and photosynthesis that ultimately drive the coupled processes of hydraulic failure and carbon starvation. The relative importance of these processes in driving mortality, their order of progression, and their degree of coupling depends on the characteristics of the anomalous water exposure, on topographic effects, and on taxa-specific variation in traits and trait acclimation. Greater inundation exposure could accelerate mortality globally; however, the interaction of changing inundation exposure with elevated CO2 , drought, and rising vapor pressure deficit could influence mortality likelihood. Models of coastal forests that incorporate the frequency and duration of inundation, the role of climatic drivers, and the processes of hydraulic failure and carbon starvation can yield improved estimates of inundation-induced woody-plant mortality.
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Affiliation(s)
- Nate G. McDowell
- Atmospheric Sciences and Global Change DivisionPacific Northwest National LabRichlandWashingtonUSA
- School of Biological SciencesWashington State UniversityPullmanWashingtonUSA
| | - Marilyn Ball
- Plant Science Division, Research School of BiologyThe Australian National UniversityActonAustralian Capital TerritoryAustralia
| | - Ben Bond‐Lamberty
- Joint Global Change Research Institute, Pacific Northwest National LaboratoryCollege ParkMarylandUSA
| | - Matthew L. Kirwan
- Virginia Institute of Marine Science, William & MaryGloucester PointVirginiaUSA
| | - Ken W. Krauss
- U.S. Geological Survey, Wetland and Aquatic Research CenterLafayetteLouisianaUSA
| | | | - Maurizio Mencuccini
- ICREA, Passeig Lluís Companys 23BarcelonaSpain
- CREAFCampus UAB, BellaterraBarcelonaSpain
| | - Nicholas D. Ward
- Marine and Coastal Research LaboratoryPacific Northwest National LaboratorySequimWashingtonUSA
- School of OceanographyUniversity of WashingtonSeattleWashingtonUSA
| | - Michael N. Weintraub
- Department of Environmental SciencesUniversity of ToledoToledoOhioUSA
- Biological Sciences DivisionPacific Northwest National LaboratoryWashingtonUSA
| | - Vanessa Bailey
- Biological Sciences DivisionPacific Northwest National LaboratoryWashingtonUSA
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220
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Jay KR, Hacker SD, Hovenga PA, Moore LJ, Ruggiero P. Sand supply and dune grass species density affect foredune shape along the
US
Central Atlantic Coast. Ecosphere 2022. [DOI: 10.1002/ecs2.4256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Katya R. Jay
- Department of Integrative Biology Oregon State University Corvallis Oregon USA
| | - Sally D. Hacker
- Department of Integrative Biology Oregon State University Corvallis Oregon USA
| | - Paige A. Hovenga
- College of Engineering Oregon State University Corvallis Oregon USA
| | - Laura J. Moore
- Department of Geological Sciences University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
| | - Peter Ruggiero
- College of Earth, Ocean, and Atmospheric Sciences Oregon State University Corvallis Oregon USA
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221
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Caffey RH, Petrolia DR, Georgiou IY, Miner MD, Wang H, Kime B. The economics of sediment quality on barrier shoreline restoration. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115730. [PMID: 35982554 DOI: 10.1016/j.jenvman.2022.115730] [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: 02/08/2022] [Revised: 07/04/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
This paper depicts a simulation-based assessment of sediment quality on the performance of dedicated dredging projects for barrier island restoration in coastal Louisiana, USA. The research involved the development and integration of two sub-models. In the first, geomorphic modeling was used to simulate sediment transport dynamics within a proxy barrier island template over a 50-year trajectory. The template was assumed to be nourished with one of two sources of dredged material: nearshore (NS) sediments of lower quality (smaller grain diameter, higher organic fines); or higher quality sediments from distal sources located on the Outer Continental Shelf (OCS). In the second model, agency project records and commercial bids were used to estimate project construction costs as a function of dredge material quantity, transport distance, and project target elevation. These sub-models were coupled within a net present value framework from which average annual break-even values for ecosystem services (EBEV) were derived as an efficiency metric for comparing the economic performance of NS- and OCS-sourced projects. Results indicate that in some cases, the physical resiliency afforded by even small increases in sand diameter (+4 μm d50) can translate to greater long-term economic viability (lower EBEV) for OCS-sourced sediment transported over longer distances. Moreover, projects constructed with much higher diameter OCS sediment (+44 μm d50) with low fines and transported over relatively long distances (200 μm, 5% fines, 15-20 miles) were found to be more cost-effective than all comparably-sized projects constructed with lower quality NS sediments obtained from proximal sources (156 μm, 20% fines, 3-5 miles). For some comparisons, this quality advantage yielded a lower EBEV for OCS-sourced projects with transport distances exceeding 30 miles. Under storm-punctuated simulations, these quality advantages were more pronounced, with greater physical and economic implications for earlier (Y5) versus later (Y20) occurring storms. Budgeting for dedicated dredging projects has traditionally centered on the value of sediment as a commodity, with a focus on material placement cost. The findings of this study, however, indicate that a more comprehensive accounting of sediment quality and performance is required to maximize the economic efficiency of coastal restoration spending.
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Affiliation(s)
- Rex H Caffey
- Center for Natural Resource Economics & Policy, Department of Agricultural Economics Louisiana State University, USA.
| | - Daniel R Petrolia
- Department of Agricultural Economics, Mississippi State University, USA
| | - Ioannis Y Georgiou
- Department of Earth and Environmental Sciences and Pontchartrain Institute for Environmental Sciences, University of New Orleans, USA; Water Institute of the Gulf, USA
| | | | - Hua Wang
- Center for Natural Resource Economics & Policy, Department of Agricultural Economics Louisiana State University, USA
| | - Brittany Kime
- Department of Earth and Environmental Sciences and Pontchartrain Institute for Environmental Sciences, University of New Orleans, USA
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222
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Freret-Meurer NV, Fernández TC, Vaccani AC. Influence of the Atlantic Ocean thermal anomaly on the Longsnout seahorse Hippocampus reidi in a Brazilian estuary. JOURNAL OF FISH BIOLOGY 2022; 101:960-971. [PMID: 35781814 DOI: 10.1111/jfb.15156] [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: 12/08/2021] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
One of the consequences of climate change is an increase in the temperature of the oceans, which is considered to be one of the greatest impacts on biodiversity. Fish may respond to this impact in several ways, including shifts in their patterns of occurrence. The present study investigated the variation in the structure of a H. reidi population between 2015 and 2017 in the northern Guaíba Island area, highlighting a possible relationship to thermal anomaly associated with the El Niño phenomenon. The seahorse population monitoring was performed monthly, recording sex ratio, abundance, juvenile and adult proportion, depth of occurrence, total length and the holdfast which the seahorse were found attached. The influence of the El Niño event on the study population was evaluated by the correlation of the thermal anomaly data reported for the Tropical South Atlantic Index. Seahorse density on northern Guaíba island was positively and significantly correlated with water temperature, but the sex ratio and number of juveniles were not. The diversity of holdfasts used increased over the study period and was inversely proportional to the thermal anomaly. These results suggest that the thermal anomalies caused by the El Niño in the South Atlantic might trigger migration behaviour in the study species, providing a large aggregation during that period in Guaíba island.
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Affiliation(s)
- Natalie V Freret-Meurer
- Laboratório de Comportamento Animal e Conservação, Universidade Santa Úrsula, Rio de Janeiro, Brazil
- Projeto Cavalos-Marinhos/RJ, Rio de Janeiro, RJ, Brazil
| | - Tatiane C Fernández
- Laboratório de Comportamento Animal e Conservação, Universidade Santa Úrsula, Rio de Janeiro, Brazil
- Projeto Cavalos-Marinhos/RJ, Rio de Janeiro, RJ, Brazil
- Graduate Program in Ecology and Evolution, Roberto Alcantara Gomes Institute of Biology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amanda C Vaccani
- Laboratório de Comportamento Animal e Conservação, Universidade Santa Úrsula, Rio de Janeiro, Brazil
- Projeto Cavalos-Marinhos/RJ, Rio de Janeiro, RJ, Brazil
- Graduate Program in Ecology and Evolution, Roberto Alcantara Gomes Institute of Biology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
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223
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Shamaskin AC, Correa SB, Street GM, Linhoss AC, Evans KO. Considering the influence of land use/land cover on estuarine biotic richness with Bayesian hierarchical models. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2675. [PMID: 35581947 PMCID: PMC9786285 DOI: 10.1002/eap.2675] [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: 11/20/2020] [Revised: 11/16/2021] [Accepted: 12/29/2021] [Indexed: 06/15/2023]
Abstract
The composition of land use/land cover (LULC) in coastal watersheds has many implications for estuarine system ecological function. Land use/land cover can influence allochthonous inputs and can enhance or degrade the physical characteristics of estuaries, which in turn affects estuaries' ability to support local biota. However, these implications for estuaries are often poorly considered when assessing the value of lands for conservation. The focus of research regarding terrestrial and estuarine interfaces often evaluates how LULC may stress estuarine ecosystems, but in this study we sought to understand how LULC may both positively and negatively affect estuaries using measures of observed biotic richness as proxies for estuarine function. We investigated the influence of LULC on estuarine biotic richness with Bayesian hierarchical models using multiple geospatial data sets from 33 estuaries and their associated watersheds along the Gulf of Mexico coastal region of the United States. We designed the hierarchical models with observed species richness of three functional groups (FGs) (i.e., pelagic fishes, forage fishes, and shrimp) from fishery-independent trawl surveys as response variables. We then set salinity and water temperature as trawl-specific covariates and measures of influence from six LULC classes as estuary-specific covariates and allowed the models to vary by estuary, trawl program, salinity, and temperature. The model results indicated that the observed richness of each FG was both positively and negatively associated with different LULC classes, with estuarine wetlands and forested lands demonstrating the strongest positive influences on each FG. The results are generally consistent with past studies, and the modeling framework provides a promising way to systematically quantify LULC linkages with the biotic health of estuaries for the purposes of potentially valuing the estuarine implications of land conservation.
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Affiliation(s)
- Andrew Challen Shamaskin
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityMississippi StateMississippiUSA
| | - Sandra B. Correa
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityMississippi StateMississippiUSA
| | - Garrett M. Street
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityMississippi StateMississippiUSA
| | - Anna C. Linhoss
- Department of Agricultural and Biological EngineeringMississippi State UniversityMississippi StateMississippiUSA
| | - Kristine O. Evans
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityMississippi StateMississippiUSA
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Spatio-temporal dynamics of phytoplankton community in a well-mixed temperate estuary (Sado Estuary, Portugal). Sci Rep 2022; 12:16423. [PMID: 36180562 PMCID: PMC9525256 DOI: 10.1038/s41598-022-20792-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/19/2022] [Indexed: 11/08/2022] Open
Abstract
Estuaries are highly productive ecosystems, which are strongly affected by several anthropogenic pressures. Phytoplankton is a key element for assessing the ecological quality status in these transitional waters. Moreover, understanding physico-chemical and biological drivers is crucial to disentangle their effect on the structure of phytoplankton community. The present work aims to study the effect of the main physico-chemical drivers on the phytoplankton community structure and dynamics in a temperate well-mixed estuary (Sado Estuary). Four sampling stations were analyzed monthly in three regions of the estuary, from 2018 to 2019. Surface water samples were collected to analyze the phytoplankton community and several concomitant physico-chemical parameters. Temperature, turbidity, salinity, and nutrients availability were the drivers that best explained the spatio-temporal patterns observed in the phytoplankton community. The upper estuary was characterized by higher phytoplankton cell abundances and biomass. Three phytoplankton groups stood out in the characterization of the estuarine assemblages: diatoms, cryptophytes, and dinoflagellates. Diatoms were the dominant group most of the year, being dominated by small cell species (single and chain-forming) upstream, and by larger chain-forming species downstream. Cryptophytes had a high contribution to the community in the inner regions of the estuary, while dinoflagellates contributed more for the community composition downstream, where high abundances of harmful algal species were sporadically found. Previous studies on the phytoplankton community dynamics in this estuary are limited to the 1990s. Thus, the present study provides insight into changes in the dominant phytoplankton groups of the Sado Estuary in the last 25 years, namely an increase in cryptophytes over diatoms in the inner estuarine regions, and an increase in dinoflagellates near the estuary mouth.
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225
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Norton M. Making a network of patches, gaps, and spaces: marine and coastal governance in Stilbaai, South Africa. MARITIME STUDIES : MAST 2022; 21:553-567. [PMID: 36193112 PMCID: PMC9520962 DOI: 10.1007/s40152-022-00283-0] [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: 03/17/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Based on research conducted by myself and colleagues as part of the Southern Cape Interdisciplinary Fisheries Research Project, I present an overview of residents' perspectives on the Stilbaai Marine Protected Area, located on the Southern Cape coast of South Africa. Currently, South Africa's marine governance sector is often fraught with politicking, inefficiencies, and other effects that strain the social-ecological system. This research shows that despite some fragmentation of governance, there are opportunities, and a general willingness, to engage in activities that take care of the local environment on the behalf of residents, that serve to educate about ocean-positive behaviours and engage visitors more meaningfully on the benefits and value of the Stilbaai Marine Protected Area. Problems that residents perceive to be associated with the Marine Protected Area are noted, and suggestions are made to enhance a sense of caretaking, or sorgskap, within the community to fill the gaps of certain governance or regulation inadequacies. Indeed, I argue that in lieu of efficient formal governance structures and collaborations, it is the informal characteristic of caretaking activities by the community that renders these activities more sustainable, long term, and effective in building a "culture" of caretaking.
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Affiliation(s)
- Marieke Norton
- Department of Biological Sciences and Marine and Antarctic Research Centre for Innovation and Sustainability, University of Cape Town, Cape Town, South Africa
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226
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Gouvêa LP, Serrão EA, Cavanaugh K, Gurgel CFD, Horta PA, Assis J. Global impacts of projected climate changes on the extent and aboveground biomass of mangrove forests. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Lidiane P. Gouvêa
- CCMAR ‐ Centre of Marine Sciences University of Algarve Faro Portugal
| | - Ester A. Serrão
- CCMAR ‐ Centre of Marine Sciences University of Algarve Faro Portugal
| | - Kyle Cavanaugh
- Department of Geography University of California Los Angeles California USA
| | - Carlos F. D. Gurgel
- Institute of Biodiversity & Sustainability NUPEM, Federal University of Rio de Janeiro Rio de Janeiro Brazil
| | - Paulo A. Horta
- Phycology Laboratory Department of Botany, Biological Sciences Center, Federal University of Santa Catarina Florianopolis Santa Catarina Brazil
| | - Jorge Assis
- CCMAR ‐ Centre of Marine Sciences University of Algarve Faro Portugal
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227
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Vigouroux G, Destouni G. Gap identification in coastal eutrophication research - Scoping review for the Baltic system case. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 839:156240. [PMID: 35644392 DOI: 10.1016/j.scitotenv.2022.156240] [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: 01/31/2022] [Revised: 05/13/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
Coastal eutrophication is a major issue worldwide, also affecting the Baltic Sea and its coastal waters. Effective management responses to coastal eutrophication require good understanding of the interacting coastal pressures from land, the open sea, and the atmosphere, and associated coastal ecosystem impacts. In this study, we investigate how research on Baltic coastal eutrophication has handled these interactions so far and what key research gaps still remain. We do this through a scoping review, identifying 832 scientific papers with a focus on Baltic coastal eutrophication. These are categorized in terms of study focus, methods, and consideration of coastal system components and land-coast-sea interactions. The coastal component categories include coastal functions (including also socio-economic driver aspects), pressures that are natural (or mediated by a natural process or system) or directly anthropogenic, and management responses. The classification results show that considerably more studies focus on coastal eutrophication pressures (52%) or impacts (39%) than on characterizing the coastal eutrophication itself (20%). Moreover, few studies investigate pressures and impacts together, indicating that feedbacks are understudied. Regarding methods, more studies focus on data collection (62%) than on linking and synthetic methods (44%; e.g., modelling), and very few studies use remote sensing (6%) or participatory (3%) methods. Coastal links with land and open sea are mentioned but much less investigated. Among the coastal functions, studies considering ecological aspects are dominant, but much fewer studies investigate human aspects and the coastal filter function. Among the coastal pressures, studies considering nutrient loads are dominant, but much fewer studies investigate the sources of these loads, especially long-lived legacy sources and possible solutions for their mitigation. Overall, few studies investigate synergies, trade-offs and incentives for various solutions to address cross-scale multi-solution management.
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Affiliation(s)
- Guillaume Vigouroux
- Department of Physical Geography, Stockholm University, 106 91 Stockholm, Sweden.
| | - Georgia Destouni
- Department of Physical Geography, Stockholm University, 106 91 Stockholm, Sweden.
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228
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Pal S, Singha P. Image-driven hydrological parameter coupled identification of flood plain wetland conservation and restoration sites. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115602. [PMID: 35777159 DOI: 10.1016/j.jenvman.2022.115602] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/14/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
A good many works focus on wetland vulnerability; some works also explore restoration sites at a very limited spatial extent. But the satellite image-driven hydrological data-based approach adopted in this work is absolutely new. Moreover, existing work only focused on identifying restoration sites in the present context, but for devising long-term sustainable planning, predicted hydrological parameters based on possible restoration sites may be an effective tool. Considering this, the present work focused on exploring hydrological data (water presence frequency (WPF), hydro-period (HP) and water depth (WD)) from time-series satellite images. This exploration may resolve the hydrological data scarcity of wetland over the wider geographical areas. Using these parameters, we developed wetland restoration and conservation sites for different historical years (2008, 2018) and predicted years (2028) using ensemble machine learning (EML) models. From the analysis, it was found that water depth, hydro-period and WPF became poorer over the period, and the trend may seem to continue in predicted years. Among the applied EML models, Random Subspace (RS) predicted wetland restoration and conservation sites precisely over others. The predicted area under high-priority restoration sites is 34% in 2018, which was 14% in 2008. In 2028, 12% more areas may fall in this priority level. Wetland away from main streams (mainly ortho-fluvial wetland) and fringe wetland parts should be given more priority for restoration. These present and predicted information will effectively help to frame sustainable wetland restoration planning.
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Affiliation(s)
- Swades Pal
- Department of Geography, University of Gour Banga, Malda, India.
| | - Pankaj Singha
- Department of Geography, University of Gour Banga, Malda, India.
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229
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Danylchuk AJ, Griffin LP, Ahrens R, Allen MS, Boucek RE, Brownscombe JW, Casselberry GA, Danylchuk SC, Filous A, Goldberg TL, Perez AU, Rehage JS, Santos RO, Shenker J, Wilson JK, Adams AJ, Cooke SJ. Cascading effects of climate change on recreational marine flats fishes and fisheries. ENVIRONMENTAL BIOLOGY OF FISHES 2022; 106:381-416. [PMID: 36118617 PMCID: PMC9465673 DOI: 10.1007/s10641-022-01333-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Tropical and subtropical coastal flats are shallow regions of the marine environment at the intersection of land and sea. These regions provide myriad ecological goods and services, including recreational fisheries focused on flats-inhabiting fishes such as bonefish, tarpon, and permit. The cascading effects of climate change have the potential to negatively impact coastal flats around the globe and to reduce their ecological and economic value. In this paper, we consider how the combined effects of climate change, including extremes in temperature and precipitation regimes, sea level rise, and changes in nutrient dynamics, are causing rapid and potentially permanent changes to the structure and function of tropical and subtropical flats ecosystems. We then apply the available science on recreationally targeted fishes to reveal how these changes can cascade through layers of biological organization-from individuals, to populations, to communities-and ultimately impact the coastal systems that depend on them. We identify critical gaps in knowledge related to the extent and severity of these effects, and how such gaps influence the effectiveness of conservation, management, policy, and grassroots stewardship efforts.
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Affiliation(s)
- Andy J. Danylchuk
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Lucas P. Griffin
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Robert Ahrens
- Fisheries Research and Monitoring Division, NOAA Pacific Islands Fisheries Science Center, 1845 Wasp Blvd., Bldg 176, Honolulu, HI 96818 USA
| | - Micheal S. Allen
- Nature Coast Biological Station, School of Forest, Fisheries and Geomatics Sciences, The University of Florida, 552 First Street, Cedar Key, FL 32625 USA
| | - Ross E. Boucek
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
- Earth and Environment Department, Florida International University, Miami, FL 33199 USA
| | - Jacob W. Brownscombe
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6 Canada
| | - Grace A. Casselberry
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Sascha Clark Danylchuk
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
- Keep Fish Wet, 11 Kingman Road, Amherst, MA 01002 USA
| | - Alex Filous
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Tony L. Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 1656 Linden Drive, Madison, WI 53706 USA
| | - Addiel U. Perez
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
| | - Jennifer S. Rehage
- Earth and Environment Department, Florida International University, Miami, FL 33199 USA
| | - Rolando O. Santos
- Department of Biological Sciences, Florida International University, Miami, FL 33181 USA
| | - Jonathan Shenker
- Department of Ocean Engineering and Marine Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32904 USA
| | - JoEllen K. Wilson
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
| | - Aaron J. Adams
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
- Florida Atlantic University Harbor Branch Oceanographic Institute, 5600 US 1 North, Fort Pierce, FL 34946 USA
| | - Steven J. Cooke
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6 Canada
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230
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Menicagli V, Castiglione MR, Balestri E, Giorgetti L, Bottega S, Sorce C, Spanò C, Lardicci C. Early evidence of the impacts of microplastic and nanoplastic pollution on the growth and physiology of the seagrass Cymodocea nodosa. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156514. [PMID: 35679937 DOI: 10.1016/j.scitotenv.2022.156514] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) and nanoplastics (NPs) are ubiquitous in natural habitats and the risks their presence poses to marine environments and organisms are of increasing concern. There is evidence that seagrass meadows are particularly prone to accumulate plastic debris, including polystyrene particles, but the impacts of this pollutant on seagrass performance are currently unknown. This is a relevant knowledge gap as seagrasses provide multiple ecosystem services and are declining globally due to anthropogenic impact and climate-change-related stressors. Here, we explored the potential effects of a 12 day-exposure of seagrasses to one concentration (68 μg/L) of polystyrene MPs and NPs on the growth, oxidative status, and photosynthetic efficiency of plants using the foundation species Cymodocea nodosa as a model. Among plant organs, adventitious roots were particularly affected by MPs and NPs showing complete degeneration. The number of leaves per shoot was lower in MPs- and NPs-treated plants compared to control plants, and leaf loss exceeded new leaf production in MPs-treated plants. MPs also reduced photochemical efficiency and increased pigment content compared to control plants. Shoots of NPs-treated plants showed a greater oxidative damage and phenol content than those of control plants and MPs-treated plants. Biochemical data about oxidative stress markers were consistent with histochemical results. The effects of MPs on C. nodosa could be related to their adhesion to plant surface while those of NPs to entering tissues. Our study provides the first experimental evidence of the potential harmful effects of MPs/NPs on seagrass development. It also suggests that the exposure of seagrasses to MPs/NPs in natural environments could have negative consequences on the functioning of seagrass ecosystems. This stresses the importance of implementing cleaning programs to remove all plastics already present in marine habitats as well as of undertaking specific actions to prevent the introduction of these pollutants within seagrass meadows.
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Affiliation(s)
- Virginia Menicagli
- Department of Biology, University of Pisa, via Derna 1, 56126 Pisa, Italy; Center for Instrument Sharing University of Pisa (CISUP), University of Pisa, via S. Maria 53, Pisa, Italy
| | - Monica Ruffini Castiglione
- Department of Biology, University of Pisa, via L. Ghini 13, 56126 Pisa, Italy; Center for Climate Change Impact, University of Pisa, Via Del Borghetto 80, Pisa, Italy
| | - Elena Balestri
- Department of Biology, University of Pisa, via Derna 1, 56126 Pisa, Italy.
| | - Lucia Giorgetti
- Institute of Agricultural Biology and Biotechnology (IBBA-CNR), Pisa, Italy
| | - Stefania Bottega
- Department of Biology, University of Pisa, via L. Ghini 13, 56126 Pisa, Italy
| | - Carlo Sorce
- Department of Biology, University of Pisa, via L. Ghini 13, 56126 Pisa, Italy; Center for Climate Change Impact, University of Pisa, Via Del Borghetto 80, Pisa, Italy
| | - Carmelina Spanò
- Department of Biology, University of Pisa, via L. Ghini 13, 56126 Pisa, Italy; Center for Climate Change Impact, University of Pisa, Via Del Borghetto 80, Pisa, Italy
| | - Claudio Lardicci
- Center for Instrument Sharing University of Pisa (CISUP), University of Pisa, via S. Maria 53, Pisa, Italy; Center for Climate Change Impact, University of Pisa, Via Del Borghetto 80, Pisa, Italy; Department of Earth Sciences, University of Pisa, via S. Maria 53, Pisa, Italy
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231
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Aldeguer-Riquelme B, Rubio-Portillo E, Álvarez-Rogel J, Giménez-Casalduero F, Otero XL, Belando MD, Bernardeau-Esteller J, García-Muñoz R, Forcada A, Ruiz JM, Santos F, Antón J. Factors structuring microbial communities in highly impacted coastal marine sediments (Mar Menor lagoon, SE Spain). Front Microbiol 2022; 13:937683. [PMID: 36160249 PMCID: PMC9491240 DOI: 10.3389/fmicb.2022.937683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022] Open
Abstract
Coastal marine lagoons are environments highly vulnerable to anthropogenic pressures such as agriculture nutrient loading or runoff from metalliferous mining. Sediment microorganisms, which are key components in the biogeochemical cycles, can help attenuate these impacts by accumulating nutrients and pollutants. The Mar Menor, located in the southeast of Spain, is an example of a coastal lagoon strongly altered by anthropic pressures, but the microbial community inhabiting its sediments remains unknown. Here, we describe the sediment prokaryotic communities along a wide range of environmental conditions in the lagoon, revealing that microbial communities were highly heterogeneous among stations, although a core microbiome was detected. The microbiota was dominated by Delta- and Gammaproteobacteria and members of the Bacteroidia class. Additionally, several uncultured groups such as Asgardarchaeota were detected in relatively high proportions. Sediment texture, the presence of Caulerpa or Cymodocea, depth, and geographic location were among the most important factors structuring microbial assemblages. Furthermore, microbial communities in the stations with the highest concentrations of potentially toxic elements (Fe, Pb, As, Zn, and Cd) were less stable than those in the non-contaminated stations. This finding suggests that bacteria colonizing heavily contaminated stations are specialists sensitive to change.
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Affiliation(s)
- Borja Aldeguer-Riquelme
- Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain
| | - Esther Rubio-Portillo
- Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain
| | - José Álvarez-Rogel
- Department of Agricultural Engineering of the Escuela Técnica Superior Ingeniería Agronómica (ETSIA) & Soil Ecology and Biotechnology Unit of the Institute of Plant Biotechnology, Technical University of Cartagena, Cartagena, Spain
| | | | - Xose Luis Otero
- Cross-Research in Environmental Technologies (CRETUS), Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - María-Dolores Belando
- Seagrass Ecology Group, Spanish Oceanography Institute of the Spanish National Research Council, Oceanography Center of Murcia, Murcia, Spain
| | - Jaime Bernardeau-Esteller
- Seagrass Ecology Group, Spanish Oceanography Institute of the Spanish National Research Council, Oceanography Center of Murcia, Murcia, Spain
| | - Rocío García-Muñoz
- Seagrass Ecology Group, Spanish Oceanography Institute of the Spanish National Research Council, Oceanography Center of Murcia, Murcia, Spain
| | - Aitor Forcada
- Department of Marine Science and Applied Biology, University of Alicante, Alicante, Spain
| | - Juan M. Ruiz
- Seagrass Ecology Group, Spanish Oceanography Institute of the Spanish National Research Council, Oceanography Center of Murcia, Murcia, Spain
| | - Fernando Santos
- Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain
| | - Josefa Antón
- Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain
- Multidisciplinary Institute of Environmental Studies Ramón Margalef, University of Alicante, Alicante, Spain
- *Correspondence: Josefa Antón,
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232
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Raposa KB, Bradley M, Chaffee C, Ernst N, Ferguson W, Kutcher TE, McKinney RA, Miller KM, Rasmussen S, Tymkiw E, Wigand C. Laying it on thick: Ecosystem effects of sediment placement on a microtidal Rhode Island salt marsh. FRONTIERS IN ENVIRONMENTAL SCIENCE 2022; 10:10.3389/fenvs.2022.939870. [PMID: 36507471 PMCID: PMC9728635 DOI: 10.3389/fenvs.2022.939870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Heightened recognition of impacts to coastal salt marshes from sea-level rise has led to expanding interest in using thin-layer sediment placement (TLP) as an adaptation tool to enhance future marsh resilience. Building on successes and lessons learned from the Gulf and southeast U.S. coasts, projects are now underway in other regions, including New England where the effects of TLP on marsh ecosystems and processes are less clear. In this study, we report on early responses of a drowning, microtidal Rhode Island marsh (Ninigret Marsh, Charlestown, RI) to the application of a thick (10-48 cm) application of sandy dredged material and complimentary extensive adaptive management to quickly build elevation capital and enhance declining high marsh plant species. Physical changes occurred quickly. Elevation capital, rates of marsh elevation gain, and soil drainage all increased, while surface inundation, die-off areas, and surface ponding were greatly reduced. Much of the marsh revegetated within a few years, exhibiting aspects of classic successional processes leading to new expansive areas of high marsh species, although low marsh Spartina alterniflora recovered more slowly. Faunal communities, including nekton and birds, were largely unaffected by sediment placement. Overall, sediment placement provided Ninigret Marsh with an estimated 67-320 years of ambient elevation gain, increasing its resilience and likely long-term persistence. Project stakeholders intentionally aimed for the upper end of high marsh plant elevation growth ranges to build elevation capital and minimize maintenance costs, which also resulted in new migration corridors, providing pathways for future marsh expansion.
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Affiliation(s)
- Kenneth B. Raposa
- RI Department of Environmental Management, Narragansett Bay National Estuarine Research Reserve, Prudence Island, RI, United States
| | - Michael Bradley
- Department of Natural Resources Science, University of Rhode Island, Kingston, RI, United States
| | - Caitlin Chaffee
- RI Department of Environmental Management, Narragansett Bay National Estuarine Research Reserve, Prudence Island, RI, United States
| | - Nick Ernst
- U.S. Fish and Wildlife Service, Department of Interior, Rhode Island National Wildlife Refuge Complex, Charlestown, RI, United States
| | | | | | - Richard A. McKinney
- Atlantic Coastal Environmental Sciences Division, U.S. Environmental Protection Agency, Narragansett, RI, United States
| | - Kenneth M. Miller
- General Dynamics Information Technology, Falls Church, VA, United States
| | - Scott Rasmussen
- Northeast Coastal and Barrier Network, National Park Service, University of RI, Kingston, RI, United States
| | - Elizabeth Tymkiw
- Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, United States
| | - Cathleen Wigand
- Atlantic Coastal Environmental Sciences Division, U.S. Environmental Protection Agency, Narragansett, RI, United States
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233
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Castro-Olivares A, Des M, Olabarria C, deCastro M, Vázquez E, Sousa MC, Gómez-Gesteira M. Does global warming threaten small-scale bivalve fisheries in NW Spain? MARINE ENVIRONMENTAL RESEARCH 2022; 180:105707. [PMID: 35963134 DOI: 10.1016/j.marenvres.2022.105707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 07/19/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Shellfisheries of the intertidal and shallow subtidal infaunal bivalves Ruditapes decussatus, Ruditapes philippinarum, Venerupis corrugata and Cerastoderma edule are of great socio-economic importance (in terms of landings) in Europe, specifically in the Galician Rías Baixas (NW Spain). However, ocean warming may threaten these fisheries by modifying the geographic distribution of the species and thus affecting productive areas. The present study analysed the impact of rising ocean temperature on the geographical distribution of the thermal comfort areas of these bivalves throughout the 21st century. The Delft3D model was used to downscale climate data from CORDEX and CMIP5 and was run for July and August in three future periods (2025-2049, 2050-2074 and 2075-2099) under the RCP8.5 scenario. The areas with optimal temperature conditions for shellfish harvesting located in the middle and outer parts of the rias may increase in the near future for R. decussatus, V. corrugata and C. edule and decrease in the far future for R. philippinarum. Moreover, shellfish beds located in the shallower areas of the inner parts of the Rías Baixas could be affected by increased water temperature, reducing the productive areas of the four species by the end of the century. The projected changes in thermal condition will probably lead to changes in shellfish harvesting modality (on foot or aboard vessels) with further socio-economic consequences.
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Affiliation(s)
- A Castro-Olivares
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, Ourense, 32004, Spain.
| | - M Des
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, Ourense, 32004, Spain
| | - C Olabarria
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, 36310, Vigo, Spain
| | - M deCastro
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, Ourense, 32004, Spain
| | - E Vázquez
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, 36310, Vigo, Spain
| | - M C Sousa
- CESAM, Physics Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - M Gómez-Gesteira
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, Ourense, 32004, Spain
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234
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Ooi SK, Barry A, Lawrence BA, Elphick CS, Helton AM. Vegetation zones as indicators of denitrification potential in salt marshes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2630. [PMID: 35403778 PMCID: PMC9539531 DOI: 10.1002/eap.2630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/18/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Salt marsh vegetation zones shift in response to large-scale environmental changes such as sea-level rise (SLR) and restoration activities, but it is unclear if they are good indicators of soil nitrogen removal. Our goal was to characterize the relationship between denitrification potential and salt marsh vegetation zones in tidally restored and tidally unrestricted coastal marshes, and to use vegetation zones to extrapolate how SLR may influence high marsh denitrification at the landscape scale. We conducted denitrification enzyme activity assays on sediment collected from three vegetation zones expected to shift in distribution due to SLR and tidal flow restoration across 20 salt marshes in Connecticut, USA (n = 60 sampling plots) during the summer of 2017. We found lower denitrification potential in short-form Spartina alterniflora zones (mean, 95% CI: 4, 3-6 mg N h-1 m-2 ) than in S. patens (25, 15-36 mg N h-1 m-2 ) and Phragmites australis (56, 16-96 mg N h-1 m-2 ) zones. Vegetation zone was the single best predictor and explained 52% of the variation in denitrification potential; incorporating restoration status and soil characteristics (soil salinity, moisture, and ammonium) did not improve model fit. Because denitrification potential did not differ between tidally restored and unrestricted marshes, we suggest landscape-scale changes in denitrification after tidal restoration are likely to be associated with shifts in vegetation, rather than differences driven by restoration status. Sea-level-rise-induced hydrologic changes are widely observed to shift high marsh dominated by S. patens to short-form S. alterniflora. To explore the implications of this shift in dominant high marsh vegetation, we paired our measured mean denitrification potential rates with projections of high marsh loss from SLR. We found that, under low and medium SLR scenarios, predicted losses of denitrification potential due to replacement of S. patens by short-form S. alterniflora were substantially larger than losses due to reduced high marsh land area alone. Our results suggest that changes in vegetation zones can serve as landscape-scale predictors of the response of denitrification rates to rapid changes occurring in salt marshes.
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Affiliation(s)
- Sean Khan Ooi
- Department of Natural Resources and the EnvironmentUniversity of ConnecticutStorrsConnecticutUSA
| | - Aidan Barry
- Department of Natural Resources and the EnvironmentUniversity of ConnecticutStorrsConnecticutUSA
| | - Beth A. Lawrence
- Department of Natural Resources and the EnvironmentUniversity of ConnecticutStorrsConnecticutUSA
- Center for Environmental Sciences and EngineeringUniversity of ConnecticutStorrsConnecticutUSA
| | - Chris S. Elphick
- Department of Ecology and Evolutionary BiologyUniversity of ConnecticutStorrsConnecticutUSA
- Center of Biological RiskUniversity of ConnecticutStorrsConnecticutUSA
| | - Ashley M. Helton
- Department of Natural Resources and the EnvironmentUniversity of ConnecticutStorrsConnecticutUSA
- Center for Environmental Sciences and EngineeringUniversity of ConnecticutStorrsConnecticutUSA
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235
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García-Poza S, Pacheco D, Cotas J, Marques JC, Pereira L, Gonçalves AMM. Marine macroalgae as a feasible and complete resource to address and promote Sustainable Development Goals (SDGs). INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022; 18:1148-1161. [PMID: 35225423 DOI: 10.1002/ieam.4598] [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: 02/27/2021] [Revised: 01/28/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Because the world's population is increasing, science-based policies are needed to promote sustainable global development. It is important to maintain and restore the environment and help human society overcome the risks from industrialization and unsustainable exponential growth. In recent years, many studies have highlighted that macroalgae represent a key marine resource for ecological and sustainable living, thus helping to address today's global problems, such as water pollution, ocean acidification, and global warming. Macroalgae show the potential to provide innovative, ecofriendly, and nutritious food sources and natural compounds for various industries, such as biomedical, food, agricultural, and pharmaceutical industries. This review discusses how macroalgae can help us today and how they can promote a more sustainable way of life in the future. It also discusses the potential danger for ecosystems and the global population if these organisms are not part of the solution but part of the problem. Integr Environ Assess Manag 2022;18:1148-1161. © 2022 SETAC.
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Affiliation(s)
- Sara García-Poza
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Diana Pacheco
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - João Cotas
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - João C Marques
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Leonel Pereira
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Ana M M Gonçalves
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
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236
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Bell‐James J. Overcoming legal barriers to coastal wetland restoration – lessons from Australia’s Blue Carbon methodology. Restor Ecol 2022. [DOI: 10.1111/rec.13780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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237
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Fulford RS, Russell M, Myers M, Malish M, Delmaine A. Models help set ecosystem service baselines for restoration assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115411. [PMID: 35751248 DOI: 10.1016/j.jenvman.2022.115411] [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: 01/24/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Coastal suburban watersheds are under heavy pressure from human activity. This pressure has yielded an extensive effort to protect, mitigate, and restore watershed ecosystem services. Assessment of restoration investments would be greatly improved by a standard approach for estimating change in ecosystem service production combined with a well-defined baseline for assessment of restoration effects. Here we take a model-based approach to both objectives by applying two established ecosystem service models in a representative coastal watershed. This watershed has undergone extensive suburbanization resulting in a loss of ecosystem services, which has resulted in heavy restoration investments. We used models to estimate loss of the ecosystem services; clean air, clean water, stable climate, and water storage resulting from suburbanization. We then applied these model-based estimates as a baseline for assessment of restoration focusing on the appropriate restoration scale and considering downstream watershed impacts. The results suggest that losses of ecosystem services, such as flood water storage, from suburbanization have been extensive since 2001, but a comparison of restoration value suggests that restoration has been effective in recouping ecosystem services in some but not all local regions suggesting there are trade-offs to be made in these efforts. These benefits were most evident for the services of clean water and water storage. Models can inform decisions by clarifying what has been lost and estimating what can be regained through restoration action. The former sets a baseline for the latter and allows for a functional equivalency approach to assessment.
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Affiliation(s)
- R S Fulford
- U.S. Environmental Protection Agency, Office of Research and Development, USA.
| | - M Russell
- U.S. Environmental Protection Agency, Office of Research and Development, USA.
| | - M Myers
- U.S. Environmental Protection Agency, Office of Research and Development, USA.
| | - M Malish
- U.S. Environmental Protection Agency, Office of Research and Development, USA.
| | - A Delmaine
- U.S. Environmental Protection Agency, Office of Research and Development, USA.
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238
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Reyes-Márquez A, Aguíñiga-García S, Morales-García SS, Sedeño-Díaz JE, López-López E. Temporal distribution patterns of metals in water, sediment, and components of the trophic structure in a tropical coastal lagoon of the Gulf of Mexico. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61643-61661. [PMID: 35020148 DOI: 10.1007/s11356-021-17815-6] [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: 07/06/2021] [Accepted: 11/23/2021] [Indexed: 06/14/2023]
Abstract
Trophic transfer and bioaccumulation of trace metals have a profound impact on the structure and function of coastal areas; however, the metal accumulation patterns in detritus-based food webs and the influence of climatic variability have not been thoroughly investigated. The Tampamachoco Lagoon (Gulf of Mexico) is a coastal system impacted by emissions from a thermoelectric plant. We evaluated the spatial-temporal distribution patterns of Al, Cd, Hg, Cr, Cu, and Pb in water, sediments, and in organisms categorized by trophic levels (TLs), trophic guilds, and habitat preferences. The sediments had the highest concentrations of metals with no significant differences between seasons. The indices of geo-accumulation and potential ecological risk classified sediments as "moderately contaminated", evidencing a threat to human health through consumption of detritivores and filter-feeders. The lowest TLs (filter-feeders and detritivorous) reached the maximum Metal Pollution Index in the rainy season. According to discriminant analyses of metals and species, omnivorous and zoobentivorous organisms were associated with Hg during the rainy and dry seasons; while Al, Cd, and Cu were related to low TLs, and seston was associated with Pb. Food web magnification factor analysis showed that: (a) Pb, Cu, and Cr were biodiluted as trophic levels increased; (b) Cd and Hg showed temporal biomagnification trends; (c) Al, Pb, Cu, and Cd showed significant biodilution from the lowest TL to intermediate TLs; and (d) Hg was transferred from the lowest to intermediate TLs with clear biomagnification effects.
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Affiliation(s)
- Alejandra Reyes-Márquez
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. de Carpio y Plan de Ayala S/N Col. Santo Tomás, C.P. 11340, Ciudad de México, México
| | - Sergio Aguíñiga-García
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Politécnico Nacional S/N, Col. Playa Palo de Santa Rita, BCS, 23096, La Paz, México
| | - Sandra Soledad Morales-García
- Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Av. Acueducto S/N, Gustavo A. Madero, Ticomán, C.P., 07340, Ciudad de México, México
| | - Jacinto Elías Sedeño-Díaz
- Instituto Politécnico Nacional, Coordinación Politécnica Para La Sustentabilidad, C.P. 07738, Ciudad de México, México
| | - Eugenia López-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. de Carpio y Plan de Ayala S/N Col. Santo Tomás, C.P. 11340, Ciudad de México, México.
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239
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Gunko R, Rapeli L, Vuorisalo T, Scheinin M, Karell P. Does Water Quality Matter for Life Quality? A Study of the Impact of Water Quality on Well-being in a Coastal Community. ENVIRONMENTAL MANAGEMENT 2022; 70:464-474. [PMID: 35751661 PMCID: PMC9381611 DOI: 10.1007/s00267-022-01673-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Most studies of life quality are concentrated on a country-level scale, while local differences within a country or area are less studied. Thus, the effect of the environment on life quality on a local scale remains understudied and is often represented by one generalized common factor. In this study, we investigated the effect of an objectively measured environmental quality variable and subjective reflections of this (perceptions of environmental quality) in relation to life quality in a coastal community. Hence, we tested the effect of objective and subjective water quality measures using a model, accounting for other traditional variables (e.g., income and health) that predict life quality variations. Our findings indicate that perceptions of the environment are strongly associated with life quality, whereas objectively measured environmental quality is associated with life quality to a lesser extent. Thus, our results suggest that the impact of the environment on life quality is mediated via the way the environment is perceived (psychological effects) and less by the actual conditions of the environment.
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Affiliation(s)
- Ruslan Gunko
- Department of Biology, University of Turku, FI-20014, Turku, Finland.
- Bioeconomy Research Team, Novia University of Applied Sciences, Raseborgsvägen 9, FI-10600, Ekenäs, Finland.
| | - Lauri Rapeli
- Social Science Research Institute, Åbo Akademi University, Turku, Finland
| | - Timo Vuorisalo
- Department of Biology, University of Turku, FI-20014, Turku, Finland
| | - Matias Scheinin
- Department of Environmental Protection, Hanko, Finland and Pro Litore Association, Raseborg, Finland
| | - Patrik Karell
- Bioeconomy Research Team, Novia University of Applied Sciences, Raseborgsvägen 9, FI-10600, Ekenäs, Finland
- Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden
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240
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Guo Z, Xu S, Xie W, Shao S, Feng X, He Z, Zhong C, Huang K, Wu CI, Shi S. Adaptation to a new environment with pre-adaptive genomic features - Evidence from woody plants colonizing the land-sea interface. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:1411-1424. [PMID: 35796621 DOI: 10.1111/tpj.15899] [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: 06/25/2021] [Revised: 06/12/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Adaptation to new environments is a key evolutionary process which presumably involves complex genomic changes. Mangroves, a collection of approximately 80 woody plants that have independently invaded intertidal zones >20 times, are ideal for studying this process. We assembled near-chromosome-scale genomes of three Xylocarpus species as well as an outgroup species using single-molecule real-time sequencing. Phylogenomic analysis reveals two separate lineages, one with the mangrove Xylocarpus granatum and the other comprising a mangrove Xylocarpus moluccensis and a terrestrial Xylocarpus rumphii. In conjunction with previous studies, we identified several genomic features associated with mangroves: (i) signals of positive selection in genes related to salt tolerance and root development; (ii) genome-wide elevated ratios of non-synonymous to synonymous substitution relative to terrestrial relatives; and (iii) active elimination of long terminal repeats. These features are found in the terrestrial X. rumphii in addition to the two mangroves. These genomic features, not being strictly mangrove-specific, are hence considered pre-adaptive. We infer that the coastal but non-intertidal habitat of X. rumphii may have predisposed the common ancestor to invasion of true mangrove habitats. Other features including the preferential retention of duplicated genes and intolerance to pseudogenization are not found in X. rumphii and are likely true adaptive features in mangroves. In conclusion, by studying adaptive shift and partial shifts among closely related species, we set up a framework to study genomic features that are acquired at different stages of the pre-adaptation and adaptation to new environments.
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Affiliation(s)
- Zixiao Guo
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Shaohua Xu
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Wei Xie
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Shao Shao
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Xiao Feng
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Ziwen He
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Cairong Zhong
- Hainan Academy of Forestry (Hainan Academy of Mangrove), 571199, Haikou, Hainan, China
| | - Kaichi Huang
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Chung-I Wu
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
| | - Suhua Shi
- State Key Laboratory of Biocontrol, Guangdong Key Lab of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, 510275, Guangzhou, Guangdong, China
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241
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Heintz WJ, Willis JM. Growth responses of Avicennia germinans and Batis maritima seedlings to weathered light sweet crude oil applied to soil and aboveground tissues. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:66148-66159. [PMID: 35499724 DOI: 10.1007/s11356-022-20458-w] [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: 07/13/2021] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Oil spills are a significant stressor to coastal and maritime environments worldwide. The growth responses of Batis maritima and Avicennia germinans seedlings to weathered Deepwater Horizon oiling were assessed through a mesocosm study using a factorial arrangement of 4 soil oiling levels (0 L m-2, 1 L m-2, 2 L m-2, 4 L -m-2) × 3 tissue oiling levels (0% of stem height, 50% of stem height, 100% of stem height). Overall, growth metrics of B. maritima displayed much greater sensitivity to both tissue and soil oiling than A. germinans, which exhibited a relatively high tolerance to both routes of oiling exposure. Batis maritima in the 4 L m-2 soil oiling treatment demonstrated significant reductions in cumulative stem height and leaf number, whereas no significant effects of soil oiling on A. germinans were detected. This was reflected in the end of the study biomass partitioning, where total aboveground and live aboveground biomass were significantly reduced for B. maritima with 4 L m-2 soil oiling, but no impacts to A. germinans were found. Tissue oiling of 100% did appear to reduce B. maritima stem diameter, but no effect of tissue oiling was discerned on biomass partitioning, suggesting that there were no impacts to integrated growth. These findings suggest that B. maritima would be more severely affected by moderate soil oiling than A. germinans.
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Affiliation(s)
- William J Heintz
- Applied Plant Sciences Laboratory, Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA
| | - Jonathan M Willis
- Applied Plant Sciences Laboratory, Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA.
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242
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Jiang L, Yang T, Yu J. Global trends and prospects of blue carbon sinks: a bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:65924-65939. [PMID: 35881286 DOI: 10.1007/s11356-022-22216-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Blue carbon sinks (mangroves, saltmarshes, and seagrasses) are considered an effective nature-based approach for climate change mitigation. Despite growing interest, a systematic review of this topic is still scarce. This study evaluated 1348 blue carbon sink-related articles from 1990 to 2020 using bibliometric technology. The results from total of 85 countries, 1538 institutions, and 4492 authors indicated that blue carbon sink research shows the characteristics of rapid growth. The most active country, institution, and author were USA, Chinese Academy of Sciences, and Duarte C.M., respectively. Relatively close academic collaboration has formed in blue carbon science. Environmental Sciences was the most popular category with 590 papers. The percentages of articles related to mangroves, saltmarshes, and seagrasses were 63.87%, 40.36%, and 40.65%, respectively. Mangrove carbon sinks are the most popular topic, and stable isotope and remote sensing are the most researched technologies for mapping and quantifying blue carbon sinks. The threats to blue carbon sinks are complex and distinctive. Restoration, conservation, and management of blue carbon ecosystems aimed to improve their carbon sink capacity are becoming hot issues and should be further investigated in the future. These findings provide a scientific roadmap for further research in this field and will enable stakeholders to identify the research trend.
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Affiliation(s)
- Lu Jiang
- College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, 266100, People's Republic of China
| | - Tang Yang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, People's Republic of China
| | - Jing Yu
- College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, 266100, People's Republic of China.
- Institute of Marine Development of Ocean University of China, Qingdao, 266100, People's Republic of China.
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243
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Chopra B, Khuman YSC, Dhyani S. Advances in Ecosystem Services Valuation Studies in India: Learnings from a Systematic Review. ANTHROPOCENE SCIENCE 2022. [PMCID: PMC9406246 DOI: 10.1007/s44177-022-00034-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Ecosystem services (ES) concept has gained global momentum as they hold immense importance for human well-being. On the other hand, direct and indirect drivers of biodiversity loss have led to deterioration of ecosystem health and their capacity to deliver ecosystem services. Worldwide, ES assessments have been increasingly used by administrators to formulate sustainable and environment centric policies. Similarly, there has been continuous expansion of ES related work in India to capture the material and non-material benefits derived from diverse ecosystems in the country. In the current paper, 105 research articles/reports have been reviewed to assess the growing trajectory of ES research and also to map their methodological approaches. The lacunae in the studies and literature have been critically examined. Analysis of the study shows that ES derived from forests have been captured widely while marine ecosystems have not received appropriate scholarly attention. Similarly, dearth of studies focusing on long- and short-term implications of climate change and other environmental challenges on the ES delivery was also evident. A strong need is felt to integrate interdisciplinary approaches for holistic ES assessment. Also, future ES assessments must assimilate traditional as well as indigenous knowledge systems within ES assessment framework to ensure formulation of tangible, sustainable policies.
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244
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Teramoto M, Hamamoto T, Liang N, Taniguchi T, Ito TY, Hu R, Yamanaka N. Abiotic and biotic factors controlling the dynamics of soil respiration in a coastal dune ecosystem in western Japan. Sci Rep 2022; 12:14320. [PMID: 35995806 PMCID: PMC9395540 DOI: 10.1038/s41598-022-17787-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 07/31/2022] [Indexed: 11/09/2022] Open
Abstract
In this study, we examined the abiotic and biotic factors controlling the dynamics of soil respiration (Rs) while considering the zonal distribution of plant species in a coastal dune ecosystem in western Japan, based on periodic Rs data and continuous environmental data. We set four measurement plots with different vegetation compositions: plot 1 on bare sand; plot 2 on a cluster of young Vitex rotundifolia seedlings; plot 3 on a mixture of Artemisia capillaris and V. rotundifolia; and plot 4 on the inland boundary between the coastal vegetation zone and a Pinus thunbergii forest. Rs increased exponentially along with the seasonal rise in soil temperature, but summer drought stress markedly decreased Rs in plots 3 and 4. There was a significant positive correlation between the natural logarithm of belowground plant biomass and Rs in autumn. Our findings indicate that the seasonal dynamics of Rs in this coastal dune ecosystem are controlled by abiotic factors (soil temperature and soil moisture), but the response of Rs to drought stress in summer varied among plots that differed in dominant vegetation species. Our findings also indicated that the spatial dynamics of Rs are mainly controlled by the distribution of belowground plant biomass and autotrophic respiration.
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Affiliation(s)
- Munemasa Teramoto
- Arid Land Research Center, Tottori University, Hamasaka, Tottori, 680-0001, Japan.
| | - Toru Hamamoto
- Arid Land Research Center, Tottori University, Hamasaka, Tottori, 680-0001, Japan.,Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Naishen Liang
- Earth System Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506, Japan
| | - Takeshi Taniguchi
- Arid Land Research Center, Tottori University, Hamasaka, Tottori, 680-0001, Japan
| | - Takehiko Y Ito
- International Platform for Dryland Research and Education, Tottori University, Hamasaka, Tottori, 680-0001, Japan
| | - Richa Hu
- The United Graduate School of Agricultural Sciences, Tottori University, Koyama-Minami, Tottori, 680-8553, Japan
| | - Norikazu Yamanaka
- Arid Land Research Center, Tottori University, Hamasaka, Tottori, 680-0001, Japan
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245
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Dogs suppress a pivotal function in the food webs of sandy beaches. Sci Rep 2022; 12:14069. [PMID: 35982210 PMCID: PMC9388640 DOI: 10.1038/s41598-022-18194-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/08/2022] [Indexed: 12/04/2022] Open
Abstract
Domestic dogs are the most abundant carnivore globally and have demonstrable negative impacts to wildlife; yet, little evidence regarding their functional roles in natural food webs exists. Adding dogs to food webs may result in a net loss (via suppression of naturally occurring species), net gain (via mesopredator release), or no change (via functional replacement) to ecosystem function. Scavenging is a pivotal function in ecosystems, particularly those that are energetically supported by carrion. Dogs also scavenge on animal carcasses, but whether scavenging by dogs influences the structural and functional properties of food webs remains unclear. Here we used camera traps baited with carrion to test the effect of dogs on the composition and diversity of the vertebrate scavenger guild, as well as carrion detection and consumption rates. We conducted this work in sandy beach ecosystems, which rely on the import of marine organic matter (i.e. stranding of dead marine animals). Diversity of the scavenger community was similar on beaches without dogs. Dogs increased the time it took for carcasses to be detected and decreased the proportion of carrion consumed. This ‘dog suppression effect’ on scavenging was stronger for nocturnal mammalian scavengers, presumably being driven by indirect trait-mediated effects, which raises further questions about the broader ecological consequences of domestic dogs in natural systems.
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246
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Maza M, Lara JL, Losada IJ. A paradigm shift in the quantification of wave energy attenuation due to saltmarshes based on their standing biomass. Sci Rep 2022; 12:13883. [PMID: 35974126 PMCID: PMC9381759 DOI: 10.1038/s41598-022-18143-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/05/2022] [Indexed: 12/04/2022] Open
Abstract
Most existing analytical and numerical models to quantify wave energy attenuation attributed to saltmarshes are based on the definition of a drag coefficient that varies with vegetation and wave characteristics and requires calibration, i.e., a case-specific variable. With the aim of determining a new variable to estimate wave energy attenuation without the use of calibration coefficients, wave attenuation caused by different saltmarsh species and the relationship with the ecosystem standing biomass are experimentally studied. Samples of four real saltmarshes with contrasting morphological and biomechanical properties, namely, Spartina sp., Salicornia sp., Halimione sp. and Juncus sp., are collected in the field and placed in a wave flume for testing under different regular and random wave conditions. Two meadow densities are considered, in addition to zero-density cases. Thus, wave damping coefficients are obtained in vegetated cases, β, and bare soil cases, βB, and wave damping produced solely by the meadow standing biomass, βSB, is determined. The obtained wave damping coefficients are related to a new variable, the hydraulic standing biomass (HSB), which is defined as a function of the meadow mean height and standing biomass and incident flow characteristics. Linear fitting relationships between the wave damping coefficient and HSB are obtained, allowing β and βSB estimation without the need for calibration. Therefore, the use of these new relationships facilitates direct quantification of wave energy attenuation due to saltmarshes based on incident wave conditions, mean plant height and meadow standing biomass, variables that can be obtained from aerial images or remote sensing data, extending the applicability of the approach. Another key aspect is that this approach does not depend on any calibration coefficient and can be directly applied with knowledge of the abovementioned characteristics. This may represent a paradigm shift in the estimation of wave energy attenuation attributed to saltmarshes.
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Affiliation(s)
- Maria Maza
- Instituto de Hidráulica Ambiental de la Universidad de Cantabria (IHCantabria), Isabel Torres 15, 39011, Santander, Spain.
| | - Javier L Lara
- Instituto de Hidráulica Ambiental de la Universidad de Cantabria (IHCantabria), Isabel Torres 15, 39011, Santander, Spain
| | - Iñigo J Losada
- Instituto de Hidráulica Ambiental de la Universidad de Cantabria (IHCantabria), Isabel Torres 15, 39011, Santander, Spain
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247
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Gamblin AE, Darrah AJ, Woodrey MS, Iglay RB. Coastal bird community response to dredge‐spoil tidal marsh restoration at New Round Island, Mississippi,
USA. Restor Ecol 2022. [DOI: 10.1111/rec.13775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Anna E. Gamblin
- Department of Wildlife, Fisheries, and Aquaculture Mississippi State University, Box 9690 Mississippi State MS 39762
| | | | - Mark S. Woodrey
- Coastal Research and Extension Center Mississippi State University 1815 Popp's Ferry Road Biloxi MS 39532
| | - Raymond B. Iglay
- Department of Wildlife, Fisheries, and Aquaculture Mississippi State University, Box 9690 Mississippi State MS 39762
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248
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Wang L, Li Y, Zhao Z, Zhu M, Hu T. Tidal flat aquaculture pollution governs sedimentary antibiotic resistance gene profiles but not bacterial community based on metagenomic data. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:155206. [PMID: 35421458 DOI: 10.1016/j.scitotenv.2022.155206] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/29/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Coastal tidal flats are intersection zones between terrestrial and marine environments and are considered repositories of pollutants from anthropogenic activities (e.g., fishery and aquaculture). Specifically, the prevalence of antibiotics and antibiotic resistance genes (ARGs) in coastal aquaculture environments pose critical threats to estuarine ecosystems. However, the contribution of aquaculture to the occurrence and abundance of ARGs and community assemblies has not been fully explored in tidal flat zones. Thus, we investigated ARGs profiles, ARG-carrying host bacteria, and their associate microbial community in the Dongtai and Sheyang tidal flat aquaculture regions of Jiangsu, China using metagenomic assembly methods. The antibiotic concentrations in the sediment samples ranged from nd to 35.50 ng/g dw, and the antibiotic pollution in the Dongtai tidal flat was more severe than in the Sheyang tidal flats. Metagenomic assembly indicated that a total of 247 ARG subtypes associated with ARG 33 types were characterized across all samples and their abundance in the Dongtai region exceeded that in the Sheyang region. Meanwhile, 21 bacteria in the tidal flat aquaculture were identified as ARG-carrying pathogens, including Escherichia coli, Vibrio fluvialis, and Staphylococcus aureus. Using neutral and null modeling analysis to determine the community ecological processes, the results revealed bacterial and ARG communities were generally dominated by stochastic and deterministic processes, respectively. The above results suggested that aquaculture pollution was contributed to shape ARG profiles in tidal flats. The observed deterministic processes affecting the ARG community in tidal flat aquaculture also provides an effective foundation to control the risks of environmental antibiotic resistance through reducing aquaculture antibiotic usage.
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Affiliation(s)
- Linqiong Wang
- Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Xikang Road #1, Nanjing, China; College of Oceanography, Hohai University, Xikang Road #1, Nanjing, China
| | - Yi Li
- College of Environment, Hohai University, Xikang Road #1, Nanjing, China.
| | - Zhe Zhao
- Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Xikang Road #1, Nanjing, China; College of Oceanography, Hohai University, Xikang Road #1, Nanjing, China
| | - Mengjie Zhu
- College of Environment, Hohai University, Xikang Road #1, Nanjing, China
| | - Tong Hu
- College of Environment, Hohai University, Xikang Road #1, Nanjing, China
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249
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Striving with Global Stress on a Local Level: Has the COVID-19 Pandemic Changed the Relationship between People and Nature? SUSTAINABILITY 2022. [DOI: 10.3390/su14159496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The COVID-19 pandemic had harsh consequences on human health and society across the globe. In addition to health effects, the pandemic also influenced people’s values, concerns, and ethics due to lockdowns and general limitations in societal activities. In this study, we examined changes in the relationship between people and nature caused by COVID-associated stress, as well as its consequences on life quality, by comparing questionnaire-based survey data before and during the pandemic. We found that the pandemic had positive effects on individual respondents’ relationships with nature. Respondents who were more affected by the pandemic rated their life quality lower than those who were less affected. In accordance, the pandemic had a negative effect on people’s life quality, especially for people living in areas where the environment (coastal water quality) was in poor condition. Our results support the prediction that environmental quality may buffer against global stress and improve societal wellbeing.
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250
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Williams BA, Watson JEM, Beyer HL, Klein CJ, Montgomery J, Runting RK, Roberson LA, Halpern BS, Grantham HS, Kuempel CD, Frazier M, Venter O, Wenger A. Global rarity of intact coastal regions. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2022; 36:e13874. [PMID: 34907590 DOI: 10.1111/cobi.13874] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 11/25/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Management of the land-sea interface is essential for global conservation and sustainability objectives because coastal regions maintain natural processes that support biodiversity and the livelihood of billions of people. However, assessments of coastal regions have focused strictly on either the terrestrial or marine realm. Consequently, understanding of the overall state of Earth's coastal regions is poor. We integrated the terrestrial human footprint and marine cumulative human impact maps in a global assessment of the anthropogenic pressures affecting coastal regions. Of coastal regions globally, 15.5% had low anthropogenic pressure, mostly in Canada, Russia, and Greenland. Conversely, 47.9% of coastal regions were heavily affected by humanity, and in most countries (84.1%) >50% of their coastal regions were degraded. Nearly half (43.3%) of protected areas across coastal regions were exposed to high human pressures. To meet global sustainability objectives, all nations must undertake greater actions to preserve and restore the coastal regions within their borders.
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Affiliation(s)
- Brooke A Williams
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
| | - James E M Watson
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
| | - Hawthorne L Beyer
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
| | - Carissa J Klein
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
| | - Jamie Montgomery
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA
| | - Rebecca K Runting
- School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Leslie A Roberson
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
| | - Benjamin S Halpern
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California, USA
| | - Hedley S Grantham
- Wildlife Conservation Society, Global Conservation Program, New York, New York, USA
| | - Caitlin D Kuempel
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
- Australian Research Council Centre of Excellence for Coral Reef Studies, The University of Queensland, St. Lucia, Queensland, Australia
| | - Melanie Frazier
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA
| | - Oscar Venter
- Natural Resource and Environmental Studies Institute, University of Northern British Columbia, Prince George, British Columbia, Canada
| | - Amelia Wenger
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Centre for Biodiversity and Conservation Science, The University of Queensland, St. Lucia, Queensland, Australia
- Wildlife Conservation Society, Global Marine Program, New York, New York, USA
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