بررسی غلظت فلزات سنگین مس و کبالت در بافت خوراکی عضله اردک ماهی(Esox lucius) تالاب بین المللی بندرانزلی

نوع مقاله : مقاله کامل علمی - پژوهشی

نویسندگان

1 کارشناس‌ارشد پژوهشکده آبزی‌پروری آب‌های داخلی، مؤسسه تحقیقات علوم شیلاتی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، بندرانزلی، ایران

2 دانشیار پژوهشکده آبزی‌پروری آب‌های داخلی، مؤسسه تحقیقات علوم شیلاتی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، بندرانزلی، ایران

چکیده

اردک ماهی(Esox lucius) یکی از گونه های بومی تالاب انزلی است و به علت گوشت مطبوعی که دارد از دیرباز مورد توجه مردم قرار گرفته است. تحقیق حاضر به منظور تعیین غلظت مواد آلاینده فلزات سنگین مس و کبالت دربافت خوراکی عضله اردک ماهی در سه ایستگاه (غرب، مرکزی, شرق ) از تالاب انزلی در سال 1394 انجام شد. دراین تحقیق بصورت تصادفی از هر ایستگاه 10 نمونه ماهی در اوزان استاندارد به روش صید با تور گوشگیر صید شد . اندازه گیری غلظت عناصر سنگین با کمک دستگاه جذب اتمی شعله انجام شد. نتایج این تحقیق نشان داد میانگین غلظت فلز مس در اردک ماهی تالاب غرب، مرکزی ، شرق به ترتیب 45/4 ،09/5 ،2/1 میکروگرم برگرم وزن خشک، غلظت فلز کبالت در اردک ماهی تالاب غرب در حد تشخیص دستگاه نبوده و میانگین غلظت آن در تالاب مرکزی و تالاب شرق به ترتیب 02/0 ، 04/ 0 میکروگرم بر گرم وزن خشک مشاهده شد.. در این مطالعه غلظت مس و کبالت در بافت عضله اردک ماهی بین ایستگاه های مورد مطالعه اختلاف معنی داری نداشت
(05/ 0P>). در حال حاضر هیچ منبعی برای مقایسه غلظت فلز کبالت در بافت خوراکی ماهیان با استانداردها یافت نشده است. میانگین غلظت مس با استاندارد سازمان بهداشت جهانی (WHO) مقایسه شدو مشخص گردید که غلظت فلز مس در بافت عضله اردک ماهی تالاب اتزلی پایین تر از حد مجاز می باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Measuring and comparing the concentrations of the heavy metals copper and cobalt in the edible muscle tissue of Pike perch (Esox lucius) International Anzali Wetland

نویسندگان [English]

  • Mina Aahmadi 1
  • Ali Asghar Khanipour 2
1 1Scientific Board, Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extention Organization (AREEO), Anzali, Iran,
2 2Associate Prof., Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extention Organization (AREEO), Anzali, Iran
چکیده [English]

Pike (Esox lucius) is a native species in Anzali wetland and because of its flesh it has been interested to people for a long time. This study was done to compare the rate of accumulation and concentration of pollutants, heavy metals such as copper and cobalt in edible muscle tissue of pike at three stations (West, Central, and East) of Anzali wetland in 2015. In this study, fishes were randomly caught in the number of 10 from each station in standard weights by gill nets. . Heavy metal concentrations were measured using flame atomic absorption spectrophotometer. The results showed that the average concentration of copper metal in the in pike in western, central and eastern wetland were 4.45, 5.09 and 1.2 μg/g dry weight, respectively and the average concentration of cobalt metal 0.02 and 0.04 μg/g dry weight were observed for Center and East of Wetland, respectively, this was not distinguishable in the east wetland by set. In this study, concentrations of lead and chromium in edible muscle tissue pike did not show significant difference between stations (P>0.05). Currently no source has been found for comparing cobalt metal concentration in fish edible tissues with standards. The average concentration of copper with standard World Health Organization (WHO) compared and determined that the concentration of copper in muscle tissue is lower than the limit.

کلیدواژه‌ها [English]

  • Heavy metals
  • pike
  • Anzali Wetland
  • edible tissue
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