Journals / Trakya University Journal of Natural Sciences / 2018 / Cilt: 19 - Sayı: 2

CORRELATION PROFILES OF THE ACCUMULATED METALS IN SEAWATER, SEDIMENT AND Pachygrapsus marmoratus (Fabricius) TISSUES IN BLACK SEA (ORDU, TURKEY)

Pages
187–195
Publication Date
2018-10-15
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

The results showed that the accumulation orders of the metals, in a descending order, were Fe>Al>Mn>Zn>Cr>Pb>Cu>As>Ni>Cd in the sediment, Fe>Mn>Cr>As>Cd in the water, and Al>Fe>Cu>Mn>Zn in crab tissues when evaluated together.

📌 3 Key Takeaways

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Objective & Hypothesis:This study was performed in order to investigate the interactions of accumulation patterns of some metals (Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in exoskeleton, gill, hepatopancreas and muscle tissues of the marbled crab Pachygrapsus marmoratus (Fabricius) sampled from near streams and domestic discharge points along the coastal region of Black Sea along Ordu in Turkey as well as patterns in sediment and seawater samples of the crab sampling sites.
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Key Findings & Data:The study area covering a coastal stretch of 28 km along Black Sea lies between the latitudes 41°03'46.42"-41°07'42.35"N and longitudes 37°28'45.63"-37°41'15.29"E.
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Conclusion & Impact:The results showed that the accumulation orders of the metals, in a descending order, were Fe>Al>Mn>Zn>Cr>Pb>Cu>As>Ni>Cd in the sediment, Fe>Mn>Cr>As>Cd in the water, and Al>Fe>Cu>Mn>Zn in crab tissues when evaluated together.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Correlation · metabolic pathways · transferrin

Abstract

This study was performed in order to investigate the interactions of accumulation patterns of some metals (Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in exoskeleton, gill, hepatopancreas and muscle tissues of the marbled crab Pachygrapsus marmoratus (Fabricius) sampled from near streams and domestic discharge points along the coastal region of Black Sea along Ordu in Turkey as well as patterns in sediment and seawater samples of the crab sampling sites. The study area covering a coastal stretch of 28 km along Black Sea lies between the latitudes 41°03'46.42"-41°07'42.35"N and longitudes 37°28'45.63"-37°41'15.29"E. The metal contents of the samples were analysed by the inductively coupled plasma - optical emission spectrometry (ICP-OES) technique. The results showed that the accumulation orders of the metals, in a descending order, were Fe>Al>Mn>Zn>Cr>Pb>Cu>As>Ni>Cd in the sediment, Fe>Mn>Cr>As>Cd in the water, and Al>Fe>Cu>Mn>Zn in crab tissues when evaluated together. In the crab samples, the amount of the accumulation of all metals was ordered as gills>exoskeleton>hepatopancreas>muscle. Al and Fe were the predominant metals in the sediment and crab tissues but Al was not detected in the seawater samples. A correlation test was performed to reveal the interaction of accumulation in the sediment, water and crab tissues. Metal-metal interactions and their co-accumulation was detected by correlation test. These interactions which exist in the crab tissues but not in the seawater and sediment were the main point of this study. Gills and exoskeleton displayed the greatest number of significant correlations between metal–metal interactions. Also, metal concentrations were found to be higher in the gills and exoskeleton. Strong correlations between Mn-Al (r=0.954, correlation p<0.001), in the exoskeleton, Al-Fe (r=0.849, correlation p<0.001), Mn-Zn (r=0.854, correlation p<0.001) in the gills, Al-Zn (r=0.882 correlation p<0.001) in the hepatopancreas were determined. Moderate correlations between Zn-Cu were found in the hepatopancreas. These metal-metal interactions may have been a result of metallothionein activity. No significant relations were found between metal levels in sediment samples and crap tissues (p>0.05). The results also showed that metals present in the seawater and sediment did not directly transform to tissue accumulation. This result showed that metal amounts in the tissues of the P. marmoratus did not reflect environmental contaminations and that sediment accumulated higher amounts of metals than seawater and tissues.

Özet

Bu çalışma, bazı metallerin (Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb ve Zn) Karadeniz (Ordu, Türkiye) kıyısı boyunca dere ve evsel atık bölgelerine yakın noktalardan örnekleme yapılmış mermer yengeci Pachygrapsus marmoratus (Fabricius)’un dış iskelet, solungaç, hepatopankreas ve kas dokularındaki birikim ilişkilerinini etkileşimlerini araştırmak amacıyla yapılmıştır. Karadeniz boyunca 28 km'lik bir kıyı şeridini kapsayan çalışma alanı 41°03'46.42"-41°07'42.35"N enlemleri ve 37°28'45.63"-37°41'15.29"E boylamları arasındadır. Numunelerin metal içerikleri indüktif eşleşmiş plazma - optik emisyon spektrometrisi (ICP-OES) tekniği ile analiz edilmiştir. Elde edilen sonuçlar birlikte değerlendirildiğinde, sedimentte Fe>Al>Mn>Zn>Cr>Pb>Cu>As>Ni>Cd, suda Fe>Mn>Cr>As>Cd ve yengeç dokularında Al>Fe>Cu>Mn>Zn şeklinde gözlenmiştir. Yengeç örneklerinde, tüm metallerin dokularda birikim miktarının sırası solungaç>dış iskelet>hepatopankreas>kas şeklindedir. Al ve Fe, sediment ve yengeç dokularında baskın metaller iken, deniz suyu örneklerinde Al tespit edilmemiştir. Sediment, su ve yengeç dokularında birikimin etkileşimini ortaya koymak için bir korelasyon testi yapılmıştır. Metal-metal etkileşimleri ve bunların birlikte birikimi korelasyon testi ile tespit edilmiştir. Yengeç dokularında gözlenen, ancak deniz suyu ve sedimentte bulunmayan bu etkileşimler çalışmanın temel noktasını oluşturmuştur. Metal-metal etkileşimleri arasında en fazla anlamlı korelasyon solungaç ve dış iskelette gözlenmiştir. Ayrıca, solungaçlarda ve dış iskeletlerde metal konsantrasyonları daha yüksek bulunmuştur. Dış iskelette Mn-Al (r=0,954, korelasyon p<0,001), solungaçta Al-Fe (r=0,849, korelasyon p<0,001), Mn-Zn (r=0,854, korelasyon p<0,001), hepatopankreasta Al-Zn (r=0,882 korelasyon p<0,001) arasında kuvvetli korelasyonlar tespit edilmiştir. Hepatopankreasta Zn-Cu arasında ise orta dereceli bir korelasyon bulunmuştur. Bu metal-metal etkileşimleri metallothionein aktivitesinin bir sonucu olabilir. Sediment örnekleri ve yengeç dokuları arasında anlamlı ilişki bulunamamıştır (korelasyon p>0,05). Hatta sonuçlar göstermiştir ki deniz suyu ve sedimentindeki metaller, dokudaki birikime direkt dönüşmemiştir. Bu sonuç P. marmoratus'un dokularındaki metal miktarının çevresel kontaminasyonu yansıtmadığını göstermektedir ve aynı zamanda sediment sonuçlarının deniz suyu ve yengeç dokularından daha fazla metal birikimi miktarını gösterdiği tespit edilmiştir.

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Cite This Article

Ergen, Ş. F., Altındağ, A., Karaboduk, K., Biler, L., Tunca, E. (2018). CORRELATION PROFILES OF THE ACCUMULATED METALS IN SEAWATER, SEDIMENT AND Pachygrapsus marmoratus (Fabricius) TISSUES IN BLACK SEA (ORDU, TURKEY). Trakya University Journal of Natural Sciences, Cilt: 19 - Sayı: 2, 187–195. https://ajindex.com/articles/46592

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