Assessment of Hg in Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from Karachi coasts, Pakistan

Quratulan Ahmed; Levent Bat

doi:10.18016/ksutarimdoga.vi.715683

TR EN

Pakistan Karachi sahillerinden Holothuria (Mertensiothuria) leucospilota türünde (Brandt, 1835) Hg değerlendirmesi

Öz

Bu çalışmanın amacı, Karachi kıyısında seçilen iki bölgede sediment, yüzey deniz suyu ve Holothuria leucospilota kasları ve derisindeki cıva seviyelerini belirlemektir. Örnekler iki mevsim güney-batı musonu (Ağustos-Eylül) ve kuzey-doğu musonu (Aralık-Ocak) boyunca toplanmıştır. Sediment içindeki Hg konsantrasyonları kuru ağırlık olarak 0,0012 ila 0,0023 mg kg-1 ve yüzey suyunda 0,00018 ila 0,00034 (µg l-1) arasında değişirken, kara deniz hıyarının kas ve derisinde ise LOD değerleri 0,0034 - 0,0046 mg kg-1 arasında değişmektedir. Üstelik, Hg deri dokusunda en yüksek birikim oranını, kuzeydoğu musonunda Buleji'de 2 ile Sunehri'de 2,69 arasında değişen BSAF değerleri ile gösterilmiştir. Kara deniz hıyarı kaslarındaki BSAF değerleri, Buleji'de güneybatı musonda 1,44 ile Sunehri'nde kuzeydoğu musonda 1,63 arasında değişmektedir. Kara deniz hıyarının derisinde BSAF değeri 2'den yüksek olduğu için makro-yoğunlaştırıcı olarak değerlendirilmiştir. Bununla birlikte, BSAF değeri kasta 1 ile 2 arasında değiştiğinden, mikro-yoğunlaştırıcı olarak belirlenmiştir. Karachi kıyılarının Buleji ve Sunehri bölgelerindeki kara deniz hıyarlarında Hg, her iki örnekleme mevsimi boyunca biyo-birikime sahip olduğu görülmüştür (BCF> 5000).

Anahtar Kelimeler

Cıva,Holothuria leucospilota,Karachi,Pakistan,Arap Denizi

Assessment of Hg in Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from Karachi coasts, Pakistan

Abstract

The aim of the present study was to determine mercury levels in sediments, surface sea water and Holothuria leucospilota muscles and skin in two selected sites from Karachi coast. Samples were collected during two seasons south-west monsoon (August-September) and north-east monsoon (December-January). The concentrations of Hg in sediment ranged from 0.0012 to 0.0023 mg kg-1, and in surface water from 0.00018 to 0.00034 (µg l-1), while in muscle and skin of black sea cucumber ranged from LOD to 0.0034 and LOD to 0.0046 mg kg-1 dry wt., respectively. Moreover, Hg showed the highest accumulation rate in the skin tissue with BSAF values ranging between 2 in Buleji and 2.69 in Sunehri at north-east monsoon. The BSAF values in the muscles of the black sea cucumber ranged from 1.44 at south-west monsoon in Buleji to 1.63 at north-east monsoon in Sunehri, respectively. Since BSAF value is higher than 2 on the skin of sea cucumber, it is evaluated as macro-concentrator. However, the BSAF value varies between 1 and 2 in muscle, it has been determined as micro-concentrator. Hg in the black sea cucumbers from Buleji and Sunehri sites of the Karachi coasts is “very bio-accumulative” (BCF > 5000) during both sampling seasons.

Keywords

Mercury,Holothuria leucospilota,Karachi,Pakistan,Arabian Sea

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Ziraat, Veterinerlik ve Gıda Bilimleri

Bölüm

Araştırma Makalesi

Yazarlar

Quratulan Ahmed
0000-0002-7597-2483
Pakistan

Levent Bat ^*
0000-0002-2289-6691
Türkiye

Yayımlanma Tarihi

31 Aralık 2020

Gönderilme Tarihi

7 Nisan 2020

Kabul Tarihi

21 Mayıs 2020

Yayımlandığı Sayı

Yıl 2020 Cilt: 23 Sayı: 6

DOI

https://doi.org/10.18016/ksutarimdoga.vi.715683

IZ

https://izlik.org/JA97UA58XK

Kaynak Göster

RIS / Bibtex

APA

Ahmed, Q., & Bat, L. (2020). Assessment of Hg in Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from Karachi coasts, Pakistan. Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi, 23(6), 1561-1568. https://doi.org/10.18016/ksutarimdoga.vi.715683

Microplastic Contamination of Holothuria (Thymiosycia) arenicola Semper, 1868, Holothuria pardalis Selenka, 1867, Sediments and Seawater From Karachi Coast, Northern Arabian Sea, Pakistan

Marine Science and Technology Bulletin

https://doi.org/10.33714/masteb.1641715

Assessment of Hg in Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from Karachi coasts, Pakistan

Pakistan Karachi sahillerinden Holothuria (Mertensiothuria) leucospilota türünde (Brandt, 1835) Hg değerlendirmesi

Öz

Anahtar Kelimeler

Assessment of Hg in Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from Karachi coasts, Pakistan

Abstract

Keywords

Kaynakça

Ayrıntılar

Birincil Dil

Konular

Bölüm

Yazarlar

Yayımlanma Tarihi

Gönderilme Tarihi

Kabul Tarihi

Yayımlandığı Sayı

DOI

IZ

Kaynak Göster

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Microplastic Contamination of Holothuria (Thymiosycia) arenicola Semper, 1868, Holothuria pardalis Selenka, 1867, Sediments and Seawater From Karachi Coast, Northern Arabian Sea, Pakistan

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