Control of alongshore-oriented sand spits on the dynamics of a wave-dominated coastal system (Holocene deposits, northern Gulf of Lions, France)

Raynal, Olivier; Bouchette, Frédéric; Certain, R.; Séranne, Michel; Dezileau, Laurent; Sabatier, Pierre; Lofi, Johanna; Hy, Anna Bui Xuan; Briqueu, Louis; Pézard, Philippe; Tessier, Bernadette

doi:10.1016/j.margeo.2009.06.008

Cited by 42 publications

(30 citation statements)

References 48 publications

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“…However, coastal habitats in the Gulf of Lions and their riverine and anthropogenic loads have considerably changed since the Roman era (Chabal et al 2008, Raynal et al 2009), with likely modifications in water composition for each environmental type. The establishment of the first lagoon sand barrier near the Lattara archeological site, at 1 km seaward from the present position, has been estimated at around 7500 yr BP, with the actual barrier being dated at 1800 yr BP (Raynal et al 2009). During the Roman era, the Lattara harbor was located in the Stagnum Latera, a single vast lagoon comprising the current Palavas network and Mauguio (Chabal et al 2008, Sabatier et al 2010.…”

Section: Historical Lagoon Usementioning

confidence: 99%

“…During the Roman era, the Lattara harbor was located in the Stagnum Latera, a single vast lagoon comprising the current Palavas network and Mauguio (Chabal et al 2008, Sabatier et al 2010. Although less isolated from the sea, this vast lagoon was a sheltered brackish environment, connected to the sea by a large permanent channel, and receiving major riverine inputs from the Lez and the Mosson rivers (Raynal et al 2009). The last major changes in sea surface temperature (SST) and salinity in the Gulf of Lions date from the early to middle Holocene (< 4000 yr BP), with SSTs higher and surface salinities lower, by only 2°C and 3, respectively, than the upper Holocene ones (Melki et al 2009).…”

Section: Historical Lagoon Usementioning

confidence: 99%

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Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

Mercier¹,

Mouillot²,

Bruguier³

et al. 2012

Mar. Ecol. Prog. Ser.

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Precise knowledge of lifetime migrations is vital in exploited fish species, since all essential habitats must be protected to maintain sustainable stock levels. The present study used multi-element otolith fingerprints of the gilthead sea bream Sparus aurata (L.) to discriminate its main juvenile and adult habitats in the Languedoc-Roussillon region (Gulf of Lions, northwest Mediterranean) and infer the lifetime migrations of 12 individuals from the area (11 from the present day and 1 from the Roman era). This allowed for the first time the identification of key habitats for the successful completion of the species' life cycle in the Gulf of Lions, and the connectivity between them. Our results revealed that lagoon use by S. aurata is probably ancient (> 2500 yr) and confirmed its current commonness. Yet, although most observed migration patterns were in accordance with the migratory behavior previously described for the species, strong inter-individual variations and new patterns in habitat use were detected. At the juvenile stage, a preference for shallow lagoons with low salinities was evidenced. Nevertheless, the first year of life can also be successfully completed in marine conditions. At the adult stage, lagoon use was shown to occur until at least age 4 yr, with periods of lagoon residency of up to 11 mo in a year, often including winter months. Because overwintering in the lagoons was previously thought to be impossible for S. aurata due to low temperatures, this finding has important implications for future stock management, especially since the species breeds in winter. KEY WORDS: Otolith microchemistry · Trace elements · Random forest · Key habitats · Gulf of LionsResale or republication not permitted without written consent of the publisher

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Section: Historical Lagoon Usementioning

confidence: 99%

Section: Historical Lagoon Usementioning

confidence: 99%

Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

Mercier¹,

Mouillot²,

Bruguier³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…This change is interpreted as the result of the final closure of the coastal lagoon by a sandy barrier due to sediment transfer along the littoral. In this area, sandy barriers build up as a result of along-shore progradation of sand spits from inherited topographic highs, by east-west coastal drift carrying sand material from the Rhône River (Raynal et al 2009). Therefore, the fauna content clearly shows a shift from a protected lagoon (with permanent inlet) to an isolated lagoon environment at around 170-cm core depth.…”

Section: Reservoir Age Correction During the Holocenementioning

confidence: 99%

Holocene Variations of Radiocarbon Reservoir Ages in a Mediterranean Lagoonal System

et al. 2010

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ABSTRACT.To obtain a precise radiocarbon Holocene chronology in coastal areas, it is necessary to estimate the modern 14 C reservoir age R(t) and its possible variations with time in relation to paleoenvironmental changes. The modern reservoir 14 C age was estimated by comparing AMS 14 C ages of 2 recent mollusk shells found in sediment cores sampled in the Palavasian lagoonal system (south of France) with ages derived from 210 Pb and 137 Cs data and historical accounts of identifiable storm events. The calculated modern R(t) value of 943 ± 25 14 C yr is about 600 yr higher than the global mean sea surface reservoir age. This high value, probably due to the relative isolation of the lagoon from marine inputs, is in good agreement with other R(t) estimates in Mediterranean lagoonal systems (Zoppi et al. 2001;Sabatier et al. 2008). 14 C ages were also obtained on a series of Holocene mollusk shells sampled at different depths of the ~8-m-long core PB06. Careful examination of the 14 C ages versus depth relationships suggests that R(t) in the past was lower and similar to the value presently measured in the Gulf of Lion (618 ± 30 14 C yr, Siani et al. 2000). The change in R(t) from 618 to 943 yr is thought to result from final closure of the coastal lagoon by the sandy barrier, due to the along-shore sediment transfer.

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“…The geology, petrophysics and hydrology of this site are well known from previous studies (Ambert, 2003;Lofi et al, 2003;Duvail et al, 2005;Lofi et al, 2013;Raynal et al, 2009Raynal et al, , 2010Sabatier et al, 2010) and was further detailed as part of this work (Perroud et al, 2011;Pezard et al, 2010a,b). The presence of small saline coastal reservoirs with impermeable boundaries provides an opportunity to study a saline formation for geological storage at field laboratory scale.…”

Section: Introductionmentioning

confidence: 90%

Time-lapse downhole electrical resistivity monitoring of subsurface CO 2 storage at the Maguelone shallow experimental site (Languedoc, France)

Pézard

Denchik

Lofi

et al. 2016

International Journal of Greenhouse Gas Control

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Control of alongshore-oriented sand spits on the dynamics of a wave-dominated coastal system (Holocene deposits, northern Gulf of Lions, France)

Cited by 42 publications

References 48 publications

Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

Holocene Variations of Radiocarbon Reservoir Ages in a Mediterranean Lagoonal System

Time-lapse downhole electrical resistivity monitoring of subsurface CO 2 storage at the Maguelone shallow experimental site (Languedoc, France)

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