Holocene palaeoenvironmental changes in three lagoons on the Algarve coast of Portugal

Trog, Carmen; Hempel, Rita; Frenzel, Peter; Mäusbacher, Roland

doi:10.1007/s12549-015-0185-0

Cited by 8 publications

(4 citation statements)

References 48 publications

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“…Similar results were found by , Hilbich et al (2008) and Trog et al (2013Trog et al ( , 2015 in several Holocene estuaries on the southern Portuguese coast. Cyprideis torosa occurs through the cores, usually associated with L. elliptica and other brackish and marginal-marine species.…”

Section: Holocenesupporting

confidence: 90%

“…It was alive in some transects of Tejo and Sado estuaries and in six sites in Melides lagoon. In all of the studied Holocene boreholes (Lisboa -PC; Melides -MB and MIGM; Mira -MIRA-CP1; Pederneira -S1, S2 and S3; Santo André -LSA; Sizandro -RS06_1) and most boreholes described in the literature Hilbich et al 2008;Trog et al 2013Trog et al , 2015, C. torosa was present.…”

Section: Resultsmentioning

confidence: 72%

“…In the base of Zone IV the valves of C. torosa were less ornamented (smooth or punctate) and in the top of the same zone they were more strongly punctate or reticulate, suggesting an alteration in water chemistry, probably a decrease in salinity, in agreement with the proposed evolution model. The only known Portuguese noded specimens of C. torosa were found by Trog et al (2015), in Central Algarve, south Portugal, in Holocene sediments from Carcavai estuary, together with no-node specimens of C. torosa and other brackish species, such as L. elliptica and C. fischeri.…”

Section: Surface Ornamentationnodes Punctation Reticulationmentioning

confidence: 99%

“…In Portugal, C. torosa is common in Recent and Holocene brackish-water coastal environments, both alive and dead, although much more frequently represented by empty valves in lagoons and estuaries. This species is referred to in several papers concerning brackish Holocene and Recent Portuguese ostracods (mixed with marine and also freshwater forms), especially those published after 1999: Paulo & Moutinho (1983), , , Cearreta et al (2003), Cabral et al (2006Cabral et al ( , 2011, Hilbich et al (2008), Lord et al (2011), Cabral & Loureiro (2013), Trog et al (2013Trog et al ( , 2015. In Martins et al's (2010) overview about the ostracods living in freshwater Portuguese habitats there is no reference to C. torosa.…”

mentioning

confidence: 99%

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Cyprideis torosa(Jones, 1850) in mainland Portugal: what do we know?

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Journal of Micropalaeontology

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The distribution of Recent and Holocene Cyprideis torosa (Jones, 1850) from brackish estuaries and lagoons of mainland Portugal is presented; older Cenozoic C. torosa are also briefly mentioned. Around 550 specimens were found alive, in Melides lagoon (456) and salt marshes from large estuaries (90). Thousands of empty valves and carapaces, with different ornamentation, were found in the lagoon, the estuaries and in Holocene samples from boreholes, in the latter with higher concentration in sediments deposited in lagoons. The modern C. torosa was found living mainly in Melides lagoon, associated with brackish and freshwater ostracod species, in soft mud or muddy sand sediments from quiet zones, with salinities from 4.1 to 15.1; it is also found in soft mud to muddy sand sediments whose interstitial waters have salinities from 19.0 to 34.1, on salt marshes (tidal flat and low marsh) of large estuaries, similar to lagoons, in low hydrodynamic areas, together with other brackish ostracods. The main parameters controlling the distribution of C. torosa appear to be the substrate, water dynamics and emersion time, whereas water chemistry is more related to the morphology of valves. In general, C. torosa presents the same ecological characteristics in the Holocene and in modern times.

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Section: Holocenesupporting

confidence: 90%

Section: Resultsmentioning

confidence: 72%

Section: Surface Ornamentationnodes Punctation Reticulationmentioning

confidence: 99%