Results 191 to 200 of about 13,871 (228)

Posidonia oceanica: A tracer of past mercury contamination

Environmental Pollution, 2007
The aim of this study is to assess the relevance and the potential of Posidonia oceanica as a tracer of past mercury contamination. Shoots were collected on two sites, an impacted site, Rosignano (Tuscany, Italy), and a pristine site, Tonnara (Corsica, France).
C, Lafabrie, G, Pergent, C, Pergent-Martini, A, Capiomont   +3 more
openaire   +2 more sources

Effects of fish farming on flavonoids in Posidonia oceanica

Science of The Total Environment, 2006
This work is a first approach to flavonoid responses (total proanthocyanidins and total and simple flavonols) in Posidonia oceanica in function of nutrient enrichment (aquaculture activities - fish farming), in the western Mediterranean Sea (Calvi-Corsica-France). The first result is the presence of total and simple flavonoids in P. oceanica.
Cannac, Magali, Ferrat, Lila, Pergent Martini, C., Pergent, G., Pasqualini, Vanina   +4 more
openaire   +2 more sources

Índex Multivariant Posidonia oceanica (POMI)

Informe Mar Balear, 2021
La Directiva marc de l’aigua (DMA 2000/60/CEE) estableix les bases per a la vigilància, protecció i millora de l’estat ecològic dels sistemes aquàtics dins dels països membres de la Unió Europea. El principal objectiu de la DMA és assolir (o mantenir) almenys un estat ecològic bo de les masses d'aigua europees per a l’any 2015.
Raquel Vaquer-Sunyer, Natalia Barrientos, Benjamín Reviriego, Mar Santandreu, Sergio Martino   +4 more
openaire   +1 more source

Abnormal embryo development in the seagrass Posidonia oceanica

Aquatic Botany, 2008
Abstract In this study the occurrence of twin-like embryos and abnormal embryos in Posidonia oceanica , a rare phenomenon in seagrasses, was documented. The ability of additional embryos to develop seedlings was also demonstrated for the first time in seagrasses.
BALESTRI, ELENA, LUCCARINI G, LARDICCI, CLAUDIO   +2 more
openaire   +1 more source

Mercury levels and fluxes in Posidonia oceanica meadows

Environmental Pollution, 1999
Mercury levels in the marine phanerogam Posidonia oceanica were evaluated at three sites subjected to different environmental conditions (anthropogenic activity). Mercury uptake by primary production varied from 9.9 to 100.6 microg m(-2) year(-1). For the entire Mediterranean basin, nearly one ton of mercury is mobilized each year, that is to say ...
G, Pergent, C, Pergent-Martini
openaire   +2 more sources

Composting of Posidonia oceanica and Its Use in Agriculture

2002
The extraordinary accumulation of deposits of the seaweed Posidonia oceanica on the beaches of Sardinia has given rise to a series of problems linked to its disposal. Leafy deposits of Posidonia oceanica are treated as refuse and disposed of in waste dumps. This is an enormous waste of organic material.
CASTALDI, Paola, MELIS P.
openaire   +2 more sources

Posidonija (Posidonia oceanica)

2005
Posidonija (Posidonia oceanica) je biljka iz skupine morskih cvjetnica. Po biološkoj raznolikosti livade posidonije najbogatije su zajednice čitavoga Jadrana, a imaju i druge važne i nezamjenjive uloge u morskom ekosistemu. Livade posidonije u Jadranu su iznimno ugrožene i stalno se smanjuju ljudskom djelovanjem.
Mikac B, Lipej B
openaire   +3 more sources

Sexual reproductive success in Posidonia oceanica

Aquatic Botany, 2003
Abstract To identify the factors that might contribute to limiting the sexual reproduction of Posidonia oceanica we examined: (1) flowering and fruiting phenology; (2) variability in flowering frequency, seed production and reproductive success (i.e.
Elena Balestri, Francesco Cinelli
openaire   +1 more source

Occurrence of mucous aggregates and their impact on Posidonia oceanica beds

Science of The Total Environment, 2005
Mucous macro-aggregates of both pelagic and benthic origin are recurrently observed in the meadows formed by the seagrass Posidonia oceanica around the island of Ischia (Gulf of Naples, Italy). In the past two decades, major events occurred in 1991, 1993 and 2000, when a thick layer of mucilage covered vast areas of the meadows.
LORENTI Maurizio, BUIA Maria Cristina, DI MARTINO Vincenzo, MODIGH Monica   +3 more
openaire   +3 more sources

Posidonia oceanica

2005
Prikazuju se biološke i ekološke značajke autohtone sredozemne morske cvjetnice Posidonia oceanica. Trajanje filma je 3:25 min.
openaire   +1 more source