Bioindicator Organisms Available to Use For Determination of Radioactive Elements in Turkey’S Seas

DergiPark: 246262trakyafbdRadyoaktivite konsantrasyonlarının belirlenmesi ve izlenmesinde canlı ve cansız çevre örnekleri önemli yer tutmaktadır. Bu nedenle, doğal ve yapay radyonüklüidler sedimentte yoğun olarak çalışılmaktadır. Denizel ekosistemde yaşayan biyoindikatör canlılar; çevre kirliliği, doğal ve yapay radyoaktif elementlerin tayini gibi araştırmalarda değerlendirilmektedir. Türkiye denizleri tür çeşitliliği açısından zengindir. Radyoaktivite konsantrasyonlarının belirlenmesi ve izlenmesinde bazı türlerin yoğun olarak kullanıldığı dikkati çekmekte, buna karşın çoğu türün ise henüz çalışılmadığı görülmektedir. Bu çalışmada, denizlerde yaşayan ve besin zincirinde önemli rol oynayan biyoindikatör organizmalar hakkında bilgi vermek ve bu tip çalışmalarda kullanılan organizmaların sayısının arttırılması amaçlanmıştır.In determination of radioactive concentration and monitoring alive and lifeless environmental samples possess a significant place. Thus, intense study is carried out related to natural and artificial radionuclider sediment. Bioindicator living organisms inhabiting in sea ecosystems; are being evaluated in researches such as determinations of environmental pollution, natural and artificial radioactive elements. Turkey’s seas are rich related to diversification of various types. In determining and monitoring radioactivity concentration widespread implementation of some sorts appeal attention and on the other hand inadequate usage of many types is observed. In the present study, providing information about the bioindicator organisms keep living in seas and plays important role in food supply chain and increasing the numbers of the types of organisms used are aimed

Comparative toxicities of selected rare earth elements: Sea urchin embryogenesis and fertilization damage with redox and cytogenetic effects

Background: Broad-rangingadverseeffectsareknownforrareearthelements(REE),yetonlyafew studies testedthetoxicityofseveralREE,promptingstudiesfocusingonmulti-parameterREEtoxicity. Methods: TrichloridesaltsofY,La,Ce,Nd,Sm,EuandGdweretestedin Paracentrotuslividus sea urchin embryos andspermfor:(1)developmentaldefectsineitherREE-exposedlarvaeorintheoffspringof REE-exposedsperm;(2)fertilizationsuccess;(3)mitoticanomaliesinREE-exposedembryosandinthe offspring ofREE-exposedsperm,and(4)reactiveoxygenspecies(ROS)formation,andmalondialdehyde (MDA)andnitricoxide(NO)levels. Results: REEs affected P.lividus larvaewithconcentration-relatedincreaseindevelopmentaldefects, 106 to 104 M, rankingas:Gd(III)4Y(III)4La(III)4Nd(III)≅Eu(III)4Ce(III)≅Sm(III). Nominalcon- centrations ofREEsaltswereconfirmed byinductivelycoupledplasmamassspectrometry(ICP-MS). Significant increasesinMDAlevels,ROSformation,andNOlevelswerefoundinREE-exposedembryos. Sperm exposuretoREEs(105 to 104 M) resultedinconcentration-relateddecreaseinfertilization success alongwithincreaseinoffspringdamage.Decreasedmitoticactivityandincreasedaberration ratesweredetectedinREE-exposedembryosandintheoffspringofREE-exposedsperm. Conclusion: REE-associated toxicityaffectingembryogenesis,fertilization,cytogeneticandredoxend- points showeddifferentactivitiesoftestedREEs.Damagetoearlylifestages,alongwithredoxandcy- togeneticanomaliesshouldbethefocusoffutureREEtoxicitystudies

Determination level of heavy metal in Ayvalik Saltern using Halimione portulacoides (L.) plant

In this study, the level of Pb, Zn, Cd of Ayvalik Saltern, determined by using Halimione portulacoides (L.) Aellen, analysis were done by using Perkin Elmer Analyst 700 Flame Atomic Absorption Spectrophotometer (FAAS) device. Saltern which is located adjacent to the Izmir-Canakkale highway, heavy metals changes determined, depending on the distance to the highway. The root, stem, leaves, and cultivation soil of plant was formed material of this study. Sampling, were done 7 station which was determined on the soil dam is surrounding saltern between 2009-2010. Through 12 months, samples regularly collected from every station. As a result of all analysis, we saw the level of Pb <0.001-0.977 ppm, Zn 0.099-1.650 ppm, Cd <0.001-0.102 ppm in the soil Pb 0.523-1.599 ppm, Zn 0.143-1.248 ppm ve Cd 0.006-0.432 ppm. Accumulation of Pb and Zn increased depend on a highway, Cd accumulation couldn’t be obtained clear correlation with distance highway. The fact that the results İn the analysis are below the limit values is because the dominant direction of the wind is North-west (through Tuzla motorway), there aren’t any crossroads or signalization on the motorway on the southern part of Tuzla and there aren’t any industrial plants having polluting effects

Ayvalık Tuzlasında Yayılış Gösteren Suaeda prostrata subsp. prostrata Pall. Alttürünün Ağır Metal Birikimi

In this study, were determined level of Pb, Zn, Cd and Ni in Suaeda prostrata subsp. prostrata Pall. which is spread in Ayvalık Saltern is partaking Izmir-Canakkale highway. Analysis were done by using Perkin Elmer Analyst 700 Flame Atomic Absorption Spectrophotometer (FAAS) device. The root, stem, leaves and cultivation soil of plant was formed material of this study. Sampling, were done 8 station which is determined on the soil dam is surrounding saltern. Through 12 months, samples regulary receipt from every station. As a result of all analysis, we saw the level Pb <0.001-1.026 ppm, Zn 0.016-1.389 ppm, Cd <0.001-0.166 ppm and Ni 0.006-0.809 ppm in the soil Pb 0.523-1.599 ppm, Zn 0.143-1.248 ppm, Cd 0.006-0.298 ppm and Ni 0.112-1.098 ppm... The fact that the results İn the analysis are below the limit values is because of the fact that the dominant diraction of the wind is North-west (through Tuzla motorway), there aren’t any crossroads or signalization on the motorway on the soutern part of Tuzla and there aren’t any industrial plants having polluting effects

Ayvalık Tuzlasında Halimione portulacoides ( L. ) Aellen Bitkisi Kullanılarak Nikel Düzeyinin Belirlenmesi

In this study, the level of nickel of Ayvalik Saltern which is partaking Izmir-Canakkale highway, determined by using Halimione portulacoides (L.) Aellen plants. The root, stem, leaves and cultivation soil of plant was formed material of this study. Sampling, were done 7 station which is determined on the soil dam is surrounding saltern. Through 12 months, samples regulary receipt from every station. As a result of all analysis, we saw the level of Ni was very low ( n.d-1,094 ppm). Analysis were done by using Perkin Elmer Analyst 700 flame atomic absorption spectrophotometer (FAAS) device