Meiofauna, microflora and geochemical properties of the late quaternary (Holocene) core sediments in the Gulf of Izmir (Eastern Aegean Sea, Turkey)

Yümün, Zeki Ünal; Merıç, Engin; Avşar, Niyazi; Nazik, Atike; Barut, İ̇pek F.; Yokeş, Baki; Sagular, Enis Kemal; Yıldız, Alptekin; Eryilmaz, Mustafa; Kam, Erol; Başsarı, Asiye; Sonuvar, Bora; Dinçer, Feyza; Baykal, Kubilay; Kaya, Seyhan

doi:10.1016/j.jafrearsci.2016.09.015

Cited by 11 publications

(8 citation statements)

References 10 publications

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“…The Red Sea/Indian Ocean type (e.g. Hottinger et al, 1993) was also reported from fossil sediments by Mateu (1972), Avnaim-Katav (2010), Melis et al (2015), Yümün et al (2016) and Hyams-Kaphzan (unpublished) and is native to the Mediterranean Sea. Cushman & Todd, 19441944 Spiroloculina attenuata Cushman & Todd -Cushman & Todd, p. 54, pl.…”

Section: Spiroloculina Antillarum D'orbigny 1839 1839mentioning

confidence: 57%

“…Modern Mediterranean records include material from the Adriatic Sea, Greece, Israel and Turkey (Cimerman & Langer, 1991;Hollaus & Hottinger, 1997;Hyams et al, 2002;Langer, 2008;Meriç et al, 2008b;Koukousioura et al, 2010). Fossil material of Coscinospira hemprichii from the Mediterranean was recently reported by Melis et al (2015), Yümün et al (2016) and Hyams-Kaphzan (unpublished) from the Adriatic Sea, Turkey and Israel, respectively. Both the fossil record and the material from Batsch show that Coscinospira hemprichii was present in the Mediterranean prior to the opening of the Suez Canal and the species must therefore be considered to be native.…”

Section: Clavulina Angularis D'orbigny 1826 1826mentioning

confidence: 74%

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Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

2020

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The human-mediated translocation of marine alien species beyond their natural ranges started as early as people began navigating the sea and is of growing concern to nature conservation. The Mediterranean Sea is among the most severely affected areas by biological invasions, a phenomenon that has been fostered by the opening and recent extension of the Suez Canal, the transport and release of ballast water, aquaculture and aquarium trade, ichthyochory and other active or passive dispersal mechanisms. The increase of marine invasions has stimulated considerable research, but for some important groups, in particular microorganisms, data are still limited. In this paper we have reviewed the current status of marine alien foraminifera in the Mediterranean Sea. Our survey includes a comrephensive taxonomic revision of previously recognized alien taxa, and new information obtained from the fossil record and from molecular studies. Our survey and reexamination of alien benthic foraminifera yielded a total of 43 validly recognized species and two species of cryptogenic taxa and reduces the number of previous recordings. The revised list includes both larger symbiont-bearing and smaller benthic foraminifera, including 16 hyaline-perforate, 3 agglutinated and 24 porcelaneous taxa. The vast majority of alien foraminifera recorded so far have become established in the Eastern and Central Mediterranean Sea, indicative for translocation and introduction via the Suez Canal pathway. Only one species, Amphistegina lobifera, causes significant ecological impacts and fulfills the criteria to be considered as an invasive alien. This species is a prolific carbonate producer, and displays extreme forms of ecosystem invasibility with capabilities to reduce native diversity and species richness. The proliferation and rates of recently observed range extensions, track contemporary sea surface temperature increases, provide strong support for previous species distribution models, and corroborate findings that rising water temperatures, global climate change and the extension of climate belts are major drivers fueling the latitudinal range expansion of larger symbiont-bearing and smaller epiphytic foraminifera. Intensified efforts to study alien foraminifera on a molecular level, in dated cores and in ballast water are required to trace their source of origin, to identify vectors of introduction and to verify their status as true aliens.

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Section: Spiroloculina Antillarum D'orbigny 1839 1839mentioning

confidence: 57%

Section: Clavulina Angularis D'orbigny 1826 1826mentioning

confidence: 74%

Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

2020

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“…The relationship between heavy metal concentrations reported by Yümün (2017) and the radioactivity values obtained in this study was examined regarding their origin (12). Yümün et al (2016) investigated the foraminifera, ostracods and mollusk communities, and the effects of heavy metals on these aquatic living organisms in İzmir Bay (Karşıyaka, Bayraklı, İnciraltı, and Çeşmealtı) (13). Yümün and Kam (2017) investigated the habitat of benthic foraminifera was evaluated for radioactive pollution in the Çanakkale Strait, which constitutes the passage of the Marmara Sea and the Aegean Sea (14).…”

Section: Introductionmentioning

confidence: 97%

The Origin of the Total Alpha and Beta Radiation Values of the Waters of Çanakkale Strait (Çanakkale/Turkey)

Kam

Önce

Yumun

2017

Journal of the Turkish Chemical Society, Section A: Chemistry

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This study is an evaluation of radioactivity the waters of the Çanakkale Strait. The gross alpha-and gross beta-radioactivity counts (Berthold, LB770-PC 10-Channel Low-Level Planchet Counter) were calculated for seawater samples taken from eight different regions of the Çanakkale Strait (Şevketiye, Seddülbahir, Lapseki, Kumkale, Burhanlı, Dereliman, Eceabat, and Gelibolu). In the samples, the gross alpha-radiation ranged between 0.064 and 0.046Bq/L and the gross beta-radiation ranged between 14.325 and 10.532 Bq/L. The highest gross alpharadiation concentration was measured at Gelibolu (0.064 Bq/L) while the lowest (0.046 Bq/L) was measured at Şevketiye. The highest value for gross beta-radiation concentration (14.325 Bq/L) was measured in Seddülbahir, and the lowest value (10.532 Bq/L) was measured in Dereliman. The gross alpha-radiation concentrations measured by the Turkish Atomic Energy Authority in Çanakkale's drinking and utility water ranged between 0.05 and 0.400 Bq/L, and the highest values (0.300 to 0.400Bq/L) were found in the Ezine county. Gross beta-radiation concentrations ranged from 0.05 to 0.500 Bq/L, and the highest values (from 0.400 to 0.500 Bq/L) were recorded in Lapseki province. The gross beta-radiation concentrations in both the sample results and TAEK data were determined to be high in Lapseki and its vicinity. Comparing the mean gross beta-and alpha-radiation concentration values of the Çanakkale Strait with the Bosphorus, the Sea of Marmara and the Black Sea, beta-radiation values in the study area were very high. Gross alpha-radiation results were low in the study area compared to other regions. Evaluating the results against the legal limit threshold, the results were above the legal limit for gross beta-radiation. This result indicates that the water is affected by the rocks through which it passes.

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“…Erdoğan (2009), in their doctoral dissertation, observed and statistically evaluated heavy metal pollution in ICP-MS in Izmir Gulf sediments [9] . Yümün et al (2016a) determined heavy metal concentrations in current sea sediments in Izmir Gulf and examined the effect of this pollution on foraminifera [10]. Ünsal et al (1998) identified terrestrial sources of Hg, Cu, Pb, Cd and Zn in the Black Sea sediment samples [11].…”

Section: Introductionmentioning

confidence: 99%

Pollution Potential of Heavy Metals in The Current Sea Sediments Between Bandirma (Balikesir) and Lapseki (Çanakkale) in the Marmara Sea

Kam¹,

Önce²

2016

Journal of Engineering Technology and Applied Sciences

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The aim of this study was to investigate the concentration of heavy metals on Holocene sediments in the Southwest Marmara Sea. Accordingly, ten core samples were collected in the investigate area. Heavy metal analyzes were performed using ICP-OS device. In the samples, 28 heavy metal (Fe, Zn, Al, Mn, As, B, Co, Cr, Cu, Ni, Sb, Na, Mg, K, Ca, P, Pb, Hg, Cd, Mo, Pb, Pt, Sn, Se, Hg) concentrations were determined. Comparing the results of the analysis are with World Average Shale Values, max values for Ni, Mn, Cr, Zn and Co were above the World average values. Maximum and minimum Pb, Cu and Fe values are below the mean shale values. The Co concentration was determined above the mean values for both values. Also, the concentrations of heavy metals in the samples taken from the Kor-9 site were at the lowest values compared to other locations. It was seen that there are no settlements, industrial establishments or maritime structures like such as a port in this locality. In places where values are high, wastewaters were originated from settlements, harbor and industrial wastes. These findings indicate that the most important cause of heavy metal contamination is anthropogenic causes.

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Meiofauna, microflora and geochemical properties of the late quaternary (Holocene) core sediments in the Gulf of Izmir (Eastern Aegean Sea, Turkey)

Cited by 11 publications

References 10 publications

Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

Alien and cryptogenic Foraminifera in the Mediterranean Sea: A revision of taxa as part of the EU 2020 Marine Strategy Framework Directive

The Origin of the Total Alpha and Beta Radiation Values of the Waters of Çanakkale Strait (Çanakkale/Turkey)

Pollution Potential of Heavy Metals in The Current Sea Sediments Between Bandirma (Balikesir) and Lapseki (Çanakkale) in the Marmara Sea

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