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Selection of parameters for seagrass management: Towards the development of integrated indicators for French Antilles
2021
Kerninon, Fanny | Payri, Claude E. | Le Loch, Francois | Alcoverro, Teresa | Maréchal, Jean-philippe | Chalifour, Julien | Gréaux, Sebastien | Mège, Simone | Athanase, Julien | Cordonnier, Sébastien | Rouget, Marie-laure | Lorre, Elise | Uboldi, Thomas | Monnier, Olivier | Hellio, Claire
Seagrass beds are increasingly impacted by human activities in coastal areas, particularly in tropical regions. The objective of this research program was to study seagrass beds characteristics under various environmental conditions in the French Antilles (FA, Caribbean Sea). A total of 61 parameters, from plant physiology to seagrass ecosystem, were tested along a gradient of anthropogenic conditions, distributed across 11 sites and 3 islands of the FA. A selection of 7 parameters was identified as relevant for the monitoring of seagrass meadows in the framework of public policies. They combined “early warning indicators” (e.g. nutrients and some trace metals) and long-term responding parameters (e.g. shoot density) adapted to management time scales. The ecological status of seagrass meadows was evaluated using a PCA. This work is a first step towards monitoring and management of seagrass meadows in the FA.
显示更多 [+] 显示较少 [-]Selection of parameters for seagrass management: Towards the development of integrated indicators for French Antilles
2021
Kerninon, Fanny | Payri, Claude E. | Le Loc'h, François | Alcoverro, Teresa | Maréchal, Jean-Philippe | Chalifour, Julien | Gréaux, Sébastien | Mège, Simone | Athanase, Julien | Cordonnier, Sébastien | Rouget, Marie-Laure | Lorre, Elise | Uboldi, Thomas | Monnier, Olivier | Hellio, Claire
Seagrass beds are increasingly impacted by human activities in coastal areas, particularly in tropical regions. The objective of this research program was to study seagrass beds characteristics under various environmental conditions in the French Antilles (FA, Caribbean Sea). A total of 61 parameters, from plant physiology to seagrass ecosystem, were tested along a gradient of anthropogenic conditions, distributed across 11 sites and 3 islands of the FA. A selection of 7 parameters was identified as relevant for the monitoring of seagrass meadows in the framework of public policies. They combined “early warning indicators” (e.g. nutrients and some trace metals) and long-term responding parameters (e.g. shoot density) adapted to management time scales. The ecological status of seagrass meadows was evaluated using a PCA. This work is a first step towards monitoring and management of seagrass meadows in the FA.
显示更多 [+] 显示较少 [-]A multidisciplinary approach for the characterization of the coastal marine ecosystems of Monte Di Procida (Campania, Italy)
2016
Mangoni, Olga | Aiello, G. (Giuseppe) | Balbi, Simona | Barra, Diana | Bolinesi, Francesco | Donadio, Carlo | Ferrara, Luciano | Guida, Marco | Parisi, Roberta | Pennetta, Micla | Trifuoggi, Marco | Arienzo, Michele
A multidisciplinary survey was carried out on the quality of water and sediments of a coastal protected marine area, embedded between the inputs from Bagnoli steel plant to the south and a sewage plant, Volturno River and Regi Lagni channel to the north. The study integrated chemical-sedimentological data with biological and ecotoxicological analyses to assess anthropogenic pressures and natural variability. Data reveal marked differences in anthropogenic pollution between southeastern and northwestern zone, with the north affected by both inorganic and organic flows and the south influenced by levels of As, Pb and Zn in the sediments above law limits, deriving from inputs of the Bagnoli brownfield site. Meiobenthic data revealed at south higher relative abundance of sensitive species to pollution and environmental stress to the south, i.e. Lobatula lobatula and Rosalina bradyi, whereas to the north relative abundance of stress tolerant Quinqueloculina lata, Quinqueloculina pygmaea and Cribroelphidium cuvilleri were determined.
显示更多 [+] 显示较少 [-]Assessment of ecological quality of coastal lagoons with a combination of phytobenthic and water quality indices
2014
Christia, Chrysoula | Giordani, Gianmarco | Papastergiadou, Eva
Coastal lagoons are ecotones between continents and the sea. Coastal lagoons of Western Greece, subjected to different human pressures, were classified into four different types based on their hydromorphological characteristics and monitored over a three year period for their biotic and abiotic features. Six ecological indices based on water quality parameters (TSI-Chl-a, TSI-TP, TRIX), benthic macrophytes (E-MaQI, EEI-c) and an integrated index TWQI, were applied to assess the ecological status of studied lagoons under real conditions. The trophic status ranged from oligotrophic to hypertrophic according to the index applied. The ecological quality of transitional water ecosystems can be better assessed by using indices based on benthic macrophytes as changes in abundance and diversity of sensitive and tolerant species are the first evidence of incoming eutrophication. The multi-parametric index TWQI can be considered appropriate for the ecological assessment of these ecosystems due to its robustness and the simple application procedure.
显示更多 [+] 显示较少 [-]An integrative method for the evaluation, monitoring, and comparison of seagrass habitat structure
2013
Irving, Andrew D. | Tanner, Jason E. | Gaylard, Sam G.
Assessing environmental condition is essential for the management of coasts and their resources, but better management decisions occur when large databases are simplified into more manageable units of information. Here we present the habitat structure index (HSI), which enables rapid assessment and direct comparison of seagrass habitat structure using scores of 0 (poor) to 100 (excellent) based on integrating five habitat variables: area, continuity, proximity, percentage cover, and species identity. Acquiring data to calculate the HSI can be done in situ or from video recordings, and requires relatively simple methodology of belt transects, estimating percentage cover, and basic taxonomy. Spatiotemporal comparisons can usefully identify locations and periods of seagrass habitat change, potentially providing an early warning indicator of habitat damage and decline in environmental quality. Overall, the integrative approach of the HSI represents a step toward simplifying the exchange of environmental information among researchers, coastal managers, and governing bodies.
显示更多 [+] 显示较少 [-]Airborne trichloroacetic acid and its deposition in the catchment area of the Caspian sea
1999
Weissflog, L. | Manz, M. | Popp, P. | Elansky, N. | Arabov, A. | Putz, E. | Schuurmann, G. (UFZ-Centre for Environmental Research, Department of Chemical Ecotoxicology, PF 2, 04301 Leipzig (Germany))
On the abundance of epiphytic green algae in relation to the nitrogen concentrations of biomonitors and nitrogen deposition in Finland
1998
Poikolainen, J. | Lippo, H. | Hongisto, M. | Kubin, E. | Mikkola, K. | Lindgren, M. (Muhos Research Station, Finnish Forest Research Institute, FIN-91500 Muhos (Finland))
Chemical response of the lichen Punctelia subrudecta (NYL.) Krog transplanted close to a power station in an urban-industrial environment
1997
Gonzalez, C.M. | Pignata, M.L. (Catedra de Quimica General, Facultad de Ciencias Exactas, Fisicas y Naturales, Universidad Nacional de Cordoba, Avda, Velez Sarsfield 299, 5000 Cordoba (Argentina))
Metal biomonitoring with mosses: procedures for correcting for soil contamination
1995
Bargagli, R. | Brown, D.H. | Nelli, L. (Dipartimento di Biologia Ambientale, Universita di Siena, via delle Cerchia 3, 53100 Siena (Italy))
Conifer aphids in an air-polluted environment. II. Host plant quality
1993
Kainulainen, P. | Satka, H. | Mustaniemi, A. | Holopainen, J.K. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))