assessment of toxic metals concentration using pearl oyster, ‎pinctada radiate, as bioindicator on the coast of persian gulf, iran‎

Authors

اسما محمدکرمی

asma mohammad karami department of marine biology sciences, tarbiat modares university, noor, mazandaran, iran.‎ علیرضا ریاحی بختیاری

alireza riyahi bakhtiari department of environmental sciences, tarbiat modares university,‎‏ ‏noor, mazandaran, iran.‎ علی کاظمی

ali kazemi department of environmental sciences, tarbiat modares university,‎‏ ‏noor, mazandaran, iran.‎ نبی اله خیرآبادی

kheirabadi kheirabadi department of marine biology sciences, tarbiat modares university, noor, mazandaran, iran.‎

abstract

background: persian gulf is a semi-closed environment which is affected by pollution ‎from heavy metals. entrance of heavy metals to the water column and binding to ‎sediment particles can affect the benthic organisms that can accumulate these ‎materials in their body. noticing this ability, mussels are considered as bio-monitoring ‎agents.‎ methods: the pearl oyster, pinctada radiate, and sediment samples were collected ‎from lengeh port and qeshm island. for measuring heavy metals, 0.5g of soft tissue ‎and 1g of shell and sediment were digested by hno3 (69%) and hot block digester. the ‎prepared samples were evaluated for cd, cu, and zn using a flame aas model 67og ‎while for pb a graphite furnace aas was used.‎ results: higher metal accumulations were observed in soft tissues. positive ‎correlations between cd, pb, zn, and cu concentrations in sediments and soft tissues ‎of oyster were observed. the use of soft tissue of p. radiata as an indicator showed the ‎highest accumulations of cd (9.76±0.59) and zn (3142.60±477.10) in lengeh port, but ‎there were no significant differences in cu and pb concentrations between the two ‎stations.‎ conclusion: the higher concentrations of heavy metals in p. radiata’ soft tissue in ‎comparison to shell suggested this material as a better heavy metals indicator than ‎shell. also, the correlation between heavy metals concentration in soft tissue and ‎sediment improve this idea that soft tissue of pinctada radiata can be considered as a ‎biomonitoring agent for toxic metals pollutions. hence, using this bioindicator showed ‎lengeh port as more polluted station than qeshm island.‎

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Assessment of Toxic Metals Concentration using Pearl Oyster, ‎Pinctada radiate, as Bioindicator on the Coast of Persian Gulf, Iran‎

Background: Persian Gulf is a semi-closed environment which is affected by pollution ‎from heavy metals. Entrance of heavy metals to the water column and binding to ‎sediment particles can affect the benthic organisms that can accumulate these ‎materials in their body. Noticing this ability, mussels are considered as bio-monitoring ‎agents.‎ Methods: The pearl oyster, Pinctada radiate, and sed...

full text

Investigation of natural habitats of pearl oyster Pinctada radiata around the Lavan Island, northern Persian Gulf

Mohar pearl oyster Pinctada radiata is the dominant economic species of pearl oyster in the Persian Gulf, particularly along the Iranian coastal waters. As pearling has been banned since 2006, stocks of pearl oysters has not been investigated during these years. For this purpose, conditions of natural habitats and stocks of Mohar pearl oyster in its old catch sites were surveyed in the present ...

full text

Population dynamic of pearl oyster pinctada radiata in 2 habitats of Lavan Island, Persian Gulf

As pearling has been banned since 2006 in Persian Gulf, growth and mortality rate of Mohar pearl oyster in its old habitats was surveyed in present research. For early survey and identification of habitats of Mohar pearl oyster Pinctada radiata, primary sea tours in coastal waters of Lavan Island, were done. Two habitats were identified and sampled seasonally from autumn 2011 to summer 2012, to...

full text

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Seasonal Histological Comparison of Gonad and Gametogenesis in Female Pearl Oyster (Pinctada radiata) of the Persian Gulf

The pearl oyster, “Pinctada radiate”, is a native species of Persian Gulf area, which has always been attractive for its ability of producing pearl. Thus, studying the gonadal maturation of the pearl oyster has been important for nucleus implantation to pearl production. In this study, samples were taken in winter and spring from Lavan and Kish Islands. The classic histological methods were use...

full text

Polycyclic aromatic hydrocarbons contaminants in Black-lip (Pearl) Oyster Pinctada margaritifera from Kish Island (Persian Gulf)

Twenty-four Black-lip Oysters (Pinctada margaritifera ) were collected in summer (July) 2004 from six coastal locations in Kish Island (Persian Gulf) and were analyzed at the analytical laboratory of Great Lakes Institute for Environmental Research at the University of Windsor according to the chemical analysis procedures which has been accredited by the Canadian Association for Environmental A...

full text

My Resources

Save resource for easier access later


Journal title:
iranian journal of toxicology

جلد ۷، شماره ۲۳، صفحات ۹۵۶-۹۶۱

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023