Spatial and temporal variation in the elemental and stable isotopic content of the seagrasses Posidonia oceanica and Cymodocea nodosa from the Illes Balears, Spain

Fourqurean, James W.; Marbà, Núria; Duarte, Carlos M.; Díaz-Almela, Elena; Ruíz‐Halpern, Sergio

doi:10.1007/s00227-006-0473-3

Cited by 70 publications

(77 citation statements)

References 39 publications

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“…3h) With the exception of Bravone (Sb and Zn) and Plateau des Chèvres (As), these TEs have relatively small spatial variation. Levels of Zn and As found in this study correspond to unpolluted sites when compared to the literature (Tranchina et al, 2004;Fourqurean et al, 2007). The high Sb levels detected only at Bravone could be attributed to the As/Sb deposit at Matra.…”

Section: Mn-mosupporting

confidence: 70%

“…Spatial variation of Sn, Bi, V, Mo, Ag, Sb, As, Zn, Al, Cr, Co and Pb (a-l) levels in Posidonia oceanica above-ground tissues at the 18 sites: Ensuès (1), La Vesse (2), Corbière (3), P. Chèvres (4), Riou (5), Bénat (6), Giens (7), Cap Roux (8), St Raphaël (9), Antibes (10), Villefranche (11), Calvi (I), Aregno (II), St Florent (III), Taglio Isolaccio (IV), Bravone (V), Ajaccio Sud (VI) and Ajaccio Nord (VII); x-axis labels indicate the sites along the coasts (1-11: PACA; I-VII: Corsica); levels are expressed as mean ± standard deviation in g gDW −1 . determined by Fourqurean et al (2007) in the Balearic Islands (Spain), and by Warnau et al (1995) and Pergent-Martini (1994) at Calvi and Marseilles. However, no extreme level was determined at the 18 selected sites, as measured by Warnau et al (1995) at Lacco Ameno (419 ± 431 g g DW −1 ; Ischia Island, Italy).…”

Section: Al (Fig 3i)-fementioning

confidence: 96%

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Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study

Luy

Gobert

Sartoretto

et al. 2012

Ecological Indicators

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a b s t r a c tLevels of Be, Al, V, Mn, Co, As, Se, Mo, Ag, Sn, Sb, Bi as well as of Cr, Fe, Ni, Cu, Zn, Cd and Pb in Posidonia oceanica (L.) Delile from the Mediterranean French coast were analysed using DRC ICP-MS. The first twelve elements have not been well studied and can be considered to be potential pollutants as a result of potentially increased levels resulting from anthropogenic activities. Spatial variation and/or compartmentalization were found for all trace elements. Except for Al, Cr, Fe, Cu and Ag, most trace elements were preferentially accumulated in photosynthetic tissues, suggesting uptake from the water column. Moreover, for Be, V, Mn, Co, Ni, As, Mo, Sb, Sn and Pb, adult leaves had higher levels than intermediate leaves, suggesting low kinetics of accumulation. Levels in the third intermediate leaf were representative of the average levels of the integral shoot, and thus can be used alone in chemical biomonitoring. For most of the twelve little-studied trace elements, the background levels of the northwestern Mediterranean Sea can be measured, and their spatial variation can be related to anthropogenic activities. Levels of the seven widely studied trace elements seem to decrease or stabilize over time, probably due to their reduced anthropogenic use. These observations show that P. oceanica is a sensitive bioindicator for the monitoring of chemical contamination of a large number of trace elements.

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Section: Mn-mosupporting

confidence: 70%

Section: Al (Fig 3i)-fementioning

confidence: 96%

Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study

Luy

Gobert

Sartoretto

et al. 2012

Ecological Indicators

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“…The seasonal cycle of nitrogen content and the isotopic signature of P. oceanica leaves are well documented. In Mallorca, Fourqurean et al (2007) reported an annual fluctuation of 0.6‰, whereas Vizzini et al (2003) reported a fluctuation of +2‰ between summer and winter in Marsala, Italy. We found that the δ 15 N value at the natural site was 1.9‰, and the maximal variability was observed near the entrance of the harbor, with a 2.7‰ difference between the maximum and minimum values.…”

Section: Discussionmentioning

confidence: 99%

“…The δ 15 N for P. oceanica leaves in pristine sites were reported to be 2.2 ± 0.9‰ in Corsica (Lepoint et al, 2003), 2.5 ± 0.4‰ in Croatia (Dolenec et al, 2006), 3.4 ± 0.9‰ in Sicily (Vizzini et al, 2005) and 3.7 ± 1.1‰ in the Balearic Islands (Fourqurean et al, 2007). In the current study, the values that we found for the site close to the open sea (between 2.6 ± 0.1‰ and 4.4 ± 0.3‰) fall within the range of those previously reported and allow us to consider this site as a reference, at least with respect to anthropic nitrogen levels.…”

Section: Discussionmentioning

confidence: 99%

Tracing sewage and natural freshwater input in a Northwest Mediterranean bay: Evidence obtained from isotopic ratios in marine organisms

Lassauque¹,

Lepoint²,

Thibaut³

et al. 2010

Marine Pollution Bulletin

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Elemental carbon and nitrogen levels and isotope ratios were assessed in different biological compartments of a Northwest (NW) Mediterranean bay to trace the various sources of nutrient input from natural (river runoffs) and anthropogenic (harbor outflows, fish farms and urban sewage outfall) sources. Samples from transplanted mussels and natural sea grass communities (Posidonia oceanica leaves and epiphytes) were harvested from different locations throughout the bay during the touristic summer and rainy seasons. The results from the nitrogen analysis revealed that sewage and harbor outflow promote higher nitrogen levels, enrichment of 15 N in the tissues, and a higher seasonal variability in sea grass and epiphytes. In mussel tissues, the δ 15 N was also influenced by sewage and harbor outflow, whereas δ 13 C was influenced by terrestrial inputs. These results suggest that natural and anthropogenic nutrient inputs have a temporary and localized influence and affect the sensitivity of natural isotopic ratios to changes in hydrologic conditions, especially to rain and tourism.

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“…Overall, primary producers showed greater values than other food web components especially for As and Pb. In particular, As was greater than in contaminated seagrass ecosystems (e.g., Balearic Islands-Spain, Fourqurean et al 2007). Pb in macroalgae was comparable with that of uncontaminated sites (Favignana Island-Italy, Campanella et al 2001), whereas in seagrasses it was greater than in a slightly contaminated marine-coastal area (port of Favignana Island-Italy, Campanella et al 2001; Island of Ischia-Italy, SchlacherHoenlinger and Schlacher 1998).…”

Section: Trace Elementsmentioning

confidence: 95%

Trophic Transfer of Trace Elements in an Isotopically Constructed Food Chain From a Semi-enclosed Marine Coastal Area (Stagnone di Marsala, Sicily, Mediterranean)

Vizzini

Costa

Tramati

et al. 2013

Arch Environ Contam Toxicol

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Trace element accumulation is particularly important in coastal and transitional environments, which act as contaminant buffers between the continental and marine systems. We compared trace element transfer to the biota in two locations with different open-sea exposures in a semi-enclosed marine coastal area (Stagnone di Marsala, Sicily, Italy) using isotopically reconstructed food chains. Samples of sediment, macroalgae, seagrasses, invertebrates, fish, and bird feathers were sampled in July 2006 and analysed for stable carbon and nitrogen isotopes (d 13 [Pb]). Trophic magnification factors were calculated through the relationships between trace elements and d 15 N in consumers. As and Pb were greater in organic matter sources (sediments and primary producers), whereas Cd and THg were greater in bird feathers. At the food chain level, an insignificant trophic transfer was found for all elements, suggesting biodilution rather than biomagnification. Sediments were more contaminated in the location with lower open-sea exposure. Macroalgae and seagrasses overall mirrored the spatial pattern highlighted in sediments, whereas differences between the two locations became further decreased moving toward higher trophic levels, indicating that trophic transfer of sediment and macrophyte-bound trace elements to the coastal lagoon food chain may be of relatively minor importance.

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Spatial and temporal variation in the elemental and stable isotopic content of the seagrasses Posidonia oceanica and Cymodocea nodosa from the Illes Balears, Spain

Cited by 70 publications

References 39 publications

Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study

Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study

Tracing sewage and natural freshwater input in a Northwest Mediterranean bay: Evidence obtained from isotopic ratios in marine organisms

Trophic Transfer of Trace Elements in an Isotopically Constructed Food Chain From a Semi-enclosed Marine Coastal Area (Stagnone di Marsala, Sicily, Mediterranean)

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