To assess the severity of oil spills on mangroves, diagnosis of the vegetation health is crucial. Some aspects of photosynthesis such as photochemical efficiency and leaf pigment composition together with the level of oxidative stress may constitute reliable indicators for vegetation health. To test this approach 14 month old Laguncularia racemosa were contaminated with 5 L m(-2) of the marine fuel oil MF-380 and treated with an oil degrading bacterial consortium in microcosms. Contamination resulted in a 20% decrease in shoot dry weight after 128 days. Photochemical efficiency, pigment content, catalase and ascorbate peroxidase remained unchanged. Multivariate ordination of DGGE microbial community fingerprints revealed a pronounced separation between the oil contaminated and the non-contaminated samples. Further studies are necessary before physiological parameters can be recommended as indicators for plant's health in oil polluted mangroves.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envpol.2012.09.003 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An assessment of mangrove forest in northwestern Mexico using the Google Earth Engine cloud computing platform.
PLoS One
December 2024
Instituto de Ciencias del Mar y Limnología, Unidad Académica Procesos Oceánicos y Costeros, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico.
Article Synopsis
- Mangrove forests are mapped using remote sensing due to the difficulties of conducting fieldwork, but this often requires a lot of manual image processing, prompting the use of cloud computing for better accuracy in classifications.
- The study focused on the spatial distribution and changes in red mangroves and other species along the northwestern coast of Mexico from 2015 to 2020, using data processed through Google Earth Engine.
- Findings revealed a total of 42865 ha of red mangrove and 139602 ha of other species in 2020, with a decrease of 1817 ha since 2015, mainly due to aquaculture and hurricanes; the study aims to aid decision-making for conservation and climate initiatives.
Effects of wood density on mechanical properties of mangrove wood from the Amazon coast.
PLoS One
November 2024
Laboratório de Ecologia de Manguezal (LAMA), Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará (UFPA), Bragança, Pará, Brazil.
Mangrove forests are essential on the Amazon coast, as local communities widely use their wood. However, it is still necessary to understand the mechanical properties of wood typical of mangroves. Our main objective was to understand the influence of density on mechanical properties.
View Article and Find Full Text PDFGlobal Data Compilation Across Climate Gradients Supports the Use of Common Allometric Equations for Three Transatlantic Mangrove Species.
Ecol Evol
November 2024
USDA Forest Service, Southern Research Station Forest Inventory and Analysis Knoxville Tennessee USA.
Predicting the distribution, structure, and biomass of mangrove forests is an area of high research interest. Across the Atlantic East Pacific biogeographic region, three species are common and abundant members of local mangrove communities; , , and . Biomass prediction for these species has relied on two approaches: site-specific allometries based on the idea that environmental/climatic differences between sites drive growth differences, or the use of common allometric equations based on the idea that site driven differences are minimal.
View Article and Find Full Text PDFExotic mangrove litter input accelerates nutrient cycling in mangrove ecosystems.
Front Plant Sci
October 2024
Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China.
Exotic plant litter presents different chemical and physical properties relative to native plant litter and alters ecosystem processes and functions that may facilitate exotic plant dispersal. However, these effects are largely unknown, especially within wetland ecosystems. This study examines whether introducing litter from the exotic mangrove could result in (1) accelerated community litter decomposition rates and increased nutrient cycling rates and (2) microbial community structure changes in the invaded areas.
View Article and Find Full Text PDFOrganic matter decay and bacterial community succession in mangroves under simulated climate change scenarios.
Braz J Microbiol
December 2024
College of Agriculture Luiz de Queiroz, University of São Paulo, Pádua Dias Avenue, 11, Piracicaba, SP, 13418-900, Brazil.
Mangroves are coastal environments that provide resources for adjacent ecosystems due to their high productivity, organic matter decomposition, and carbon cycling by microbial communities in sediments. Since the industrial revolution, the increase of Greenhouse Gases (GHG) released due to fossil fuel burning led to many environmental abnormalities such as an increase in average temperature and ocean acidification. Based on the hypothesis that climate change modifies the microbial diversity associated with decaying organic matter in mangrove sediments, this study aimed to evaluate the microbial diversity under simulated climate change conditions during the litter decomposition process and the emission of GHG.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!