Abstract
Changes in paleoecology and climate of northern Tunisia during the last 3000 years were reconstructed based on the flood history interpreted from a 172-cm sediment core of Lake Ichkeul (NW Tunisia). Seven wet/dry episodes were identified based on biological (ostracods, foraminifera and mollusks) and biotic indices (H and E index, species richness and abundance). These proxy-based environmental changes were supported by correspondence analyses (CAs) and ecophenotypic responses of the brackish taxon Cyprideis torosa in addition to a grain-size study. Two dry episodes were identified in the lower (EP1) and upper (EP7) parts of the core. These were marked by the dominance of the brackish ostracod C. torosa. High water salinity was indicated by the presence of the brackish ostracod Loxoconcha elliptica, the foraminifer Ammonia sp. and lagoonal mollusks. The occurrence of the freshwater ostracods Ilyocypris sp., Herpetocypris sp., Dawinula stevensoni and Limnocythere inopinata was associated with high species richness and ecophenotypic changes of C. torosa valves indicating lower salinity during three major wet episodes (EP2, EP4, and EP6). The ecological and environmental changes, occurring between 3050 and 50 cal. year BP, are most likely linked to an increase of fluvial inputs which are also recognized in several other Mediterranean lakes. The humid episodes were interrupted by two saline periods (EP3 and EP5) during which freshwater ostracod assemblages declined, diversity indices dropped to the lowest values, and fine-grained sediments became dominant. The top of the core is characterized by the remarkable dominance of L. elliptica coupled with C. torosa, the absence of freshwater ostracods, and the changes in grain-size sediment parameters which are most likely the result of anthropogenic activities. The changes in hydrochemistry and sedimentology were attributed to the deepening of the Bizerte navigation canal, main wadis damming, and Tinja sluice construction which mostly occurred in the XXth century.
Similar content being viewed by others
References
Affouri H, Sahraoui O (2017) The sedimentary organic matter from a Lake Ichkeul core (far northern Tunisia): rock-eval and biomarker approach. J Afr Earth Sci 129:248–259
Armynot du Châtelet E, Gebhardt K, Langer R (2011) Coastal pollution monitoring: foraminifera as tracers of environmental perturbation in the port of Boulogne-Sur-Mer (northern France). Neues Jahrb Geol Palaontol Abh 262:91–116
Aufgebauer A, Panagiotopoulos K, Wagner B, Schaebitz F, Viehberg FA, Vogel H, Zanchetta G, Sulpizio R, Leng MJ, Damaschke M (2012) Climate and environmental change in the Balkans over the last 17 ka recorded in sediments from Lake Prespa (Albania/F.Y.R. of Macedonia/Greece). Quat Int 274:122–135
Ben M’Barek N, Slim-Shimi N (2002) Evolution des paramètres physico-chimiques des eaux du lac Ichkeul après la réalisation des aménagements hydrauliques (Tunisie). Proceedings of International Symposium and Workshop on Environmental Pollution Control and waste Management. Tunis (EPCOWM’2002):20–27
Benito G, Macklin MG, Zielhofer C, Jones AF, Machado MJ (2015) Holocene flooding and climate change in the Mediterranean. Catena 130:13–33
Birks HH, Peglar SM, Boomer I, Flower RJ, Ramdani M, Appleby PG, Bjune AE, Patrick ST and Kraïem MM with contributions from Fathi AA, Abdelzaher HMA (2001) Palaeolimnological responses of nine north African lakes in the CASSARINA project to recent environmental changes and human impact detected by plant macrofossil, pollen, and faunal analyses. Aquat Ecol 35: 405–430
Blott SJ, Pye K (2001) GRADISTAT: a grain size distribution and statistics package for the analysis of unconsolidated sediments. Earth Surf Process Landf 26:1237–1248
Bodergat AM, Lécuyer C, Martineau F, Nazik A, Gürbüz K, Legendre S (2014) Oxygen isotope variability in calcite shells of the ostracod Cyprideis torosa in Akyatan lagoon, Turkey. J Paleolimnol 52:43–59
Bonaduce G, Ciampo G, Masoli M (1975) Distribution of ostracoda in the Adriatic Sea. Reprinted from the Pubblicazione Stazione Zoologica Napoli 40 Supplement, 1-304
Bonaduce G, Masoli M (1968) Marine ostracoda of Tunisia. Reprinted from the Pubblicazione Stazione Zoologica Napoli 36:458–470
Boomer I (2012) Ostracoda as indicators of climatic and human-influenced changes in the late quaternary of the Ponto-Caspian region (Aral, Caspian and Black Seas): 205-215. In: Horne DJ, Holmes JA, Rodriguez-Lazaro J and Viehberg FA (2012) Ostracoda as proxies for quaternary climate change. Developments in quaternary sciences. Elsevier: 337 pp
Boyden CR, Russell PJC (1972) The distribution and habitat range of the brackish water cockle (Cardium (Cerastoderma) edule) in the British Isles. J Anim Ecol 41:719–734
Carbonel P (1982) Les Ostracodes, traceurs des variations hydrologiques dans les systèmes de transition eau douce-eau salée. Mémoires de la Société géologique de France 144:117–128
Carbonel P, Pujos M (1982) Les variations architecturales des microfaunes du lac de Tunis: relations avec l’environnement. Oceanol Acta:79–85
Cimerman F, Langer MR (1991) Mediterranean foraminifera. lovenska Academia Znanosti in Umetnosti, Ljubljania: 119 pp
Cohen AS (2003) Paleolimnology: the history and evolution of lake systems. Oxford University press 525 pp
Curry B, Henne PD, Mesquita-Joanes F, Marrone F, Pieri V, La Mantia T, Calo C, Tinner W (2016) Holocene paleoclimate inferred from salinity histories of adjacent lakes in southwestern Sicily (Italy). Quat Sci Rev 150:67–83
Damnati B (2000) Holocene Lake records in the northern hemisphere of Africa. J Afr Earth Sci 31(2):253–262
De Deckker P, Lord A (2017) Cyprideis torosa: a model organism for the Ostracoda? J Micropalaeontol 36:3–6. https://doi.org/10.1144/jmpaleo2016-100
Diepenbroek M, Grobe H, Sieger R (2001) PanPlot.Ver. 10.16. http://www.pangaea.de/ Software/PanPlot
Fajemila OT, Langer MR (2016) Ecosystem indicators: foraminifera, Thecamoebians and diatoms from the Ologe lagoon, Nigeria. Rev Micropaleontol 59:397–407
Fajemila OT, Langer MR (2017) Spatial distribution and biogeographic significance of foraminiferal assemblages from São Tomé and Príncipe, gulf of Guinea, West Africa. Neues Jahrb Geol Palaontol Abh 285:337–360
Fajemila OT, Langer MR, Lipps JH (2015) Spatial patterns in the distribution, diversity and abundance of benthic foraminifera around Moorea (society archipelago, French Polynesia). PLoS One 10:e0145752
Faust D, Zielhofer C, Escudero RB, Diaz del Olmo F (2004) High-resolution fluvial record of late Holocene geomorphic change in northern Tunisia: climatic or human impact? Quat Sci Rev 23:1771–1772
Fletcher WJ, Zielhofer C (2013) Fragility of western Mediterranean landscapes during Holocene rapid climate changes. Catena 103:16–29
Folk RL, Ward WC (1957) Brazos River bar: a study in the significance of grain size parameters. J Sediment Petrol 27:3–26
Frenzel P, Boomer I (2005) The use of ostracods from marginal marine, brackish waters as bioindicators of modern and quaternary environmental change. Palaeogeogr Palaeoclimatol Palaeoecol 225:68–92
Frenzel P, Schulze I, Pint A, Boomer I, Feike M (2011) Salinity dependant morphological variation in Cyprideis torosa. Joannea Geologie und Paläontologie 11:59–61
Gauthier H (1928) Recherche sur la faune des eaux continentales de l’Algérie et de la Tunisie. Imprimerie Minerva, Alger: 419 pp
Hammer Ø, Harper DAT, Ryan PD (2001) Past: paleontological statistics software package for education and data analysis. Palaeontol Electron 4:9
Harper DAT (1999) Numerical Palaeobiology. John Wiley & Sons. In Hammer Ø, harper DAT, Ryan PD (2001) past: paleontological statistics software package for education and data analysis. Palaeontologia electronica 4: 9 pp
Hua Q, Barbetti M, Rakowski AZ (2013) Atmospheric radiocarbon for the period 1950–2010. Radiocarbon 55:2059–2072
Joyce CB, Vina-Herbon C, Metcalfe DJ (2005) Biotic variation in coastal water bodies in Sussex, England: implications for saline lagoons. Estuar Coast Shelf Sci 65:633–644
Keatings KW, Hawkes I, Holmes JA, Flower RJ, Leng MJ, Abu-Zied RH, Lord AR (2007) Evaluation of ostracod-based palaeoenvironmental reconstruction with instrumental data from the arid Faiyum depression, Egypt. J Paleolimnol 38:261–283
Keyser D (2005) Histological peculiarities of the noding process in Cyprideis torosa (Jones) (Crustacea, Ostracoda). Hydrobiologia 538:95–106
Keyser D, Aladin N (2004) Noding in Cyprideis torosa and its causes. Studia Quaternaria 21:19–24
Lakhdar R, Soussi M, Ben Ismail MH, M’Rabet A (2006) A Mediterranean Holocene restricted coastal lagoon under arid climate: case of the sedimentary record of Sabkha Boujmel (SE Tunisia). Palaeogeogr Palaeoclimatol Palaeoecol 241:177–191
Lamb H, Roberts N, Leng M, Barker P, Benkaddour A, Van der Kaars S (1999) Lake evolution in a semi-arid montane environment: responses to catchment change and hydroclimatic variation. J Paleolimnol 21:325–343
Langer MR (2000) Comparative molecular analysis of small-subunit ribosomal 18S DNA sequences from Haynesina germanica (Ehrenberg, 1840), a common intertidal foraminifer from the North Sea. Neues Jahrbuch für Geologie und Paläontologie. Monatshefte 11:641–650
Langer MR (2001) The molecular phylogenetic status of Elphidium williamsoni (Haynes, 1973) as inferred from partial 18S-rDNA sequences. J Micropaleontol 20:183
Langer MR, Mouanga GH, Fajemila OT (2016) Shallow-water nearshore benthic foraminifera assemblages from Gabon. Micropaleontology 62:69–80
Langer MR, Schmidt-Sinns J (2006) The 100 most common Foraminifera from the Bay of Fetovaia, Elba Island (Mediterranean Sea). Monographie im Selbstverlag, Institut für Paläontologie, Universität Bonn, 37 pp, 15 pls
Laprida C (2001) Les ostracodes traceurs des conditions hydrologiques à petite échelle: exemple d’interprétation dans l’Holocène d’Argentine. Geobios 34(6):707–720
Lewis JP, Ryves DB, Rasmussen P, Knudsen KL, Petersen KS, Olsen J, Leng MJ, Kristensen P, McGowan S, Philippsen B (2013) Environmental change in the Limfjord, Denmark (ca 7500e1500 cal yrs BP): a multiproxy study. Quat Sci Rev 78:126–140
Li X, Liu W (2017) Lake evolution and hydroclimate variation at Lake Qinghai (China) over the past 32 ka inferred from ostracods and their stable isotope composition. J Paleolimnol 58:299–316
Lipps JH, Langer MR (1999) Benthic foraminifera from the meromitic, Mecherchar jellyfish Lake, Palau (western Pacific). Micropaleontology 45:278–284
Marquer L, Pomel S, Abichou A, Schulz E, Kaniewski D, Van Campo E (2008) Late Holocene high resolution paleoclimatic reconstruction inferred from Sebkha Mhabeul, Southeast Tunisia. Quat Res 70:240–250
Martínez-García B, Ana P, Rodríguez-Lázaro J, Bodego A (2013) Recent benthic foraminifers of the Basque continental shelf (Bay of Biscay, northern Spain): oceanographic implications. Cont Shelf Res 66:105–122
Meisch C (2000) Freshwater Ostracoda of western and Central Europe. Spektrum Akademischer Verlag:522
Mezquita F, Roca JR, Reed JM, Wansard G (2005) Quantifying species-environment relationships in non-marine Ostracoda for ecological and palaeoecological studies: examples using Iberian data. Palaeogeogr Palaeoclimatol Palaeoecol 225:93–117
Morellόn M, Anselmetti FS, Ariztegui D, Brushulli B, Sinopoli G, Wagner B, Sadori L, Gilli A, Pambuku A (2015) Human-climate interactions in the Central Mediterranean region during the last millennia: the laminated record of Lake Butrint (Albania). Quat Sci Rev 136:134–152
Moreno A, Pérez A, Frigola J, Nieto-Moreno V, Rodrigo-Gámiz M, Martrat B, González-Sampériz P, Morellón M, Martín-Puertas C, Corella JP, Belmonte Á, Sancho C, Cacho I, Herrera G, Canals M, Grimalt JO, Jiménez-Espejo F, Martínez-Ruiz F, Vegas-Vilarrúbia T, Valero-Garcés BL (2012) The medieval climate anomaly in the Iberian peninsula reconstructed from marine and lake records. Quat Sci Rev 43:16–32
Moreno A, Valero-Garcés B, González-Sampériz P, Rico M (2008) Flood response to rainfall variability during the last 2000 years inferred from the Taravilla lake record (central Iberian range, Spain). J Paleolimnol 40:943–961
Murray JW (1996) Ecology and applications of benthic foraminifera. Cambridge University Press, p 442
Ouda B, Zouari K, Ben Ouezdou H, Chkir N, Causse C (1998) Nouvelles données paléoenvironnementales pour le Quaternaire récent en Tunisie centrale (bassin de Maknessy). Earth and Planetary Sciences 326:855–886
Peglar SM, Birks HH, Birks HJB, with contributions from Appleby PG, Fathi AA, Flower RJ, Kraïem MM, Patrick ST, Ramdani M (2001) Terrestrial pollen record of recent land-use changes around nine North African lakes in the CASSARINA Project Aquatic Ecology 35: 431–448
Pielou EC (1966) The measurement of diversity in different types of biological collections. J Theor Biol 13:131–144
Pint A, Frenzel P (2016) Ostracod fauna associated with Cyprideis torosa—an overview. J Micropalaeontol 36:113–119. https://doi.org/10.1144/jmpaleo2016-010
Pint A, Frenzel P, Fuhrmann R, Scharf B, Wennrich V (2012) Distribution of Cyprideis torosa (Ostracoda) in quaternary Athalassic sediments in Germany and its application for palaeoecological reconstructions. Int Rev Hydrobiol 97:330–355
Rajganapathi VC, Jitheshkumar N, Sundararajan M, Bhat KH, Velusamy S (2016) Grain size analysis and characterization of sedimentary environment along Thiruchendur coast, Tamilnadu. India Arab J Geosci 6:4717–4728
Ramanathan AL, Rajkumar K, Majundar J, Singh G, Bahera PN, Santra SC, Chidambaram S (2009) Textural characteristics of the surface sediments of a tropical mangrove Sundarban ecosystem India. Indian J Mar Sci 38:397–403
Ramdani M, Elkhiati N, Flower RJ with contribution from Birks HH, Kraïem MM, Fathi, AA, Patrick ST (2001a) Open water zooplankton communities in North African wetland lakes: the CASSARINA project. Aquatic Ecology 35: 319–333
Ramdani M, Flower RJ, Elkhiati N with contribution from Birks HH, Kraïem MM, Fathi AA (2001b) Zooplankton (Cladocera, Ostracoda), Chironomidae and other benthic faunal remains in sediment cores from nine North African wetland lakes: the CASSARINA Project. Aquat Ecol 35: 389–403
Ramdani M, Flower RJ, Elkhiati N, Kraïem MM, Fathi AA, Birks HH, Patrick ST (2001c) North African wetland lakes: characterization of nine sites included in the CASSARINA project. Aquat Ecol 35:281–302
Ramsey BC, Lee S (2013) Recent and planned developments of the program OxCal. Radiocarbon 55:720–730
Reimer PJ, Brown TA, Reimer RW (2004) Discussion: reporting and calibration of post-bomb C-14 data. Radiocarbon 46:1299–1304
Reimer PJ, McCormac FG (2002) Marine radiocarbon reservoir corrections for the Mediterranean and Aegean seas. Radiocarbon 44:159–166
Reimer PJ, Bard E, Bayliss A, Beck JW, Blackwell PG, Ramsey CB, Buck CE, Cheng H, Edwards RE, Friedrich M, Grootes PM, Guilderson TP, Haflidason H, Hajdas I, Hatté C, Heaton TJ, Hoffmann DL, Hogg AG, Hughen KA, Kaiser KF, Kromer B, Manning SW, Niu M, Reimer RW, Richards DA, Scott EM, Southon JR, Staff RA, CSM T, Van der Plich J (2013) Intcal 13 and marine13 radiocarbon age calibration curves 0–50,000 years cal BP. Radiocarbon 55:1869–1887
Rosenfeld A (1982) Distribution patterns and development of sieve-pores in two recent ostracode species. Micropaleontology 28:372–380
Rosenfeld A, Vesper B (1977) The variability of the sieve-pores in recent and fossil species of Cyprideis torosa (Jones, 1850) as an indicator for salinity and palaeosalinity. In: Aspects of ecology and zoogeography of Recent and fossil Ostracoda. 55–67
Ruiz F, Abad M, Galán E, González I, Aguilá I, Olías M, Ariza JG, Cantano M (2006) The present environmental scenario of El Melah lagoon (NE Tunisia) and its evolution to a future sabkha. J Afr Earth Sci 44:289–302
Sadori L, Giraudi C, Masi A, Magny M, Ortu E, Zanchetta G, Izdebski A (2015) Climate, environment and society in southern Italy during the last 2000 years. A review of the environmental, historical and archaeological evidence. Quat Sci Rev 136:173–188
Stambouli-Essassi S, Roche E, Bouzid S (2007) Evolution of vegetation and climatic changes in north-western Tunisia during the last 40 millennia. Geo-Eco-Trop 31:171–214
Stevenson AC, Battarbee RW (1991) Palaeoecological and documentary records of recent environmental change in garaet El Ichkeul: a seasonally saline lake in NW Tunisia. Biol Conserv 58:275–295
Stevenson AC, Phethean SJ, Robinson JE (1993) The palaeosalinity and vegetational history of Garaet el Ichkeul, Northwest Tunisia. Holocene 3:201–210
Stuiver M, Polach HA (1977) Discussion: reporting of 14 C data. Radiocarbon 19:355–363
Thissen JM, Langer MR (2017) Spatial patterns and structural composition of foraminiferal assemblages from the Zanzibar archipelago (Tanzania). Paleontographica, Abt A: Palaeozoology–Stratigraphy 308:1–67
Till G, Guiot J (1990) Reconstitution of precipitation in Morocco since 110 A.D. based on Cedrus atlantica tree-ring widths. Quat Res 33:337–351
Trabelsi Y, Gharbi F, El Ghali A, Oueslati M, Samaali M, Abdelli W, Baccouche S, Ben Tekaya M, Benmansour M, Mabit L, Ben M’Barek N, Reguigui N, Abril JM (2012) Recent sedimentation rates in Garaet El Ichkeul Lake, NW Tunisia, as affected by the construction of dams and a regulatory sluice. J Soils Sediments 12:784–796
Van der Meeren T, Ito E, Verschuren D, Almendinger JE, Martens K (2011) Valve chemistry of Limnocythere inopinata (Ostracoda) in a cold arid environment—implications for paleolimnological interpretation. Palaeogeogr Palaeoclimatol Palaeoecol 306:116–126
Véla E, Pavon D (2012) The vascular flora of Algerian and Tunisian small islands: if not biodiversity hotspots, at least biodiversity hotchpotchs? Biodivers J 3:343–362
Viehberg FA, Frenzel P, Hoffmann G (2008) Succession of late Pleistocene and Holocene ostracode assemblages in a transgressive environment: a study at a coastal locality of the southern Baltic Sea (Germany). Palaeogeogr Palaeoclimatol Palaeoecol 264:318–329
Vita-Finzi C, Roberts N (1984) Selective leaching of shells for 14C dating. Radiocarbon 26:54–58
Vogel H, Wagner B, Zanchetta G, Sulpizio R, Rosén P (2010) A paleoclimate record with tephrochronological age control for the last glacial- interglacial cycle from Lake Ohrid, Albania and Macedonia. J Paleolimnol 44:295–310
Warrier AK, Pednekar H, Mahesh BS, Mohan R, Gazi S (2016) Sediment grain size and surface textural observations of quartz grains in late quaternary lacustrine sediments from Schirmacher oasis, East Antarctica: Paleoenvironmental significance. Polar Science 10:89–100
Weinmann AE, Langer MR (2017) Diverse thermotolerant assemblages of benthic foraminiferal biotas from tropical tide and rock pools of eastern Africa. Rev Micropaleontol 60:511–523
Wilhelm B, Arnaud F, Sabatier P, Magand O, Chapron E, Courp T, Tachikawa K, Fanget B, Malet E, Pignol C, Bard E, Delannoy JJ (2013) Palaeoflood activity and climate change over the last 1400 years recorded by lake sediments in the NW European Alps. J Quat Sci 28:189–199
Zaïbi C, Carbonel P, Kamoun F, Fontugne M, Azri C, Jedoui Y, Montacer M (2012) Evolution of the sebkha Dreîaa (south-eastern Tunisia, Gulf of Gabes) during the Late Holocene: response of ostracod assemblages. Rev Micropaleontol 55:83–97
Zaïbi C, Kamoun F, Viehberg F, Carbonel P, Jedoui Y, Abida H, Fontugny M (2016) Impact of relative sea level and extreme climate events on the southern Skhira coastline (Gulf of Gabes, Tunisia) during Holocene times: ostracods and foraminifera associations' response. J Afr Earth Sci 118:120–136
Zaïbi C, Scharf B, Viehberg FA, Keyser D, Kamoun F (2013) Preliminary report on the living non-marine Ostracoda (Crustacea) from Tunisia with the description of a new Psychrodromus species. Zootaxa 3626(4):499–516
Zerai K (2009) Chronostratigraphy of Holocene alluvial archives in the Wadi Sbeïtla basin (Central Tunisia). Geomorphologie 15:271–286
Acknowledgements
The authors are grateful to the Editor-in-Chief Prof. Dr. Abdullah M. Al-Amri and to the Associate Editor Prof. Beatriz Bádenas for their mindfulness and valuable assessment, and to the anonymous reviewers for their constructive comments and recommendations on the improvement of this manuscript. Special thanks are addressed to Dr. Nabil Khelifi the Senior Publishing Editor of Springer MENA Program for his precious comments and suggestions.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hamad, A.B., Viehberg, F.A., Khadraoui, A. et al. Water level and atmospheric humidity history of Lake Ichkeul (northern Tunisia) during the last 3000 years. Arab J Geosci 11, 316 (2018). https://doi.org/10.1007/s12517-018-3678-0
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s12517-018-3678-0