@article{article_293070, title={DETERMINATION OF SEASONAL CHANGES ON SOME HEAVY METAL (Cd, Pb, Cr) LEVELS OF SHRIMP AND PRAWN SPECIES FROM NORTH-EASTERN MEDITERRANEAN SEA, GULF OF MERSIN, TURKEY}, journal={Journal of Aquaculture Engineering and Fisheries Research}, volume={2}, pages={42–49}, year={2016}, DOI={10.3153/JAEFR16006}, author={Ayas, Deniz and Köşker, Ali Rıza and Durmuş, Mustafa and Bakan, Mısra}, keywords={Shrimp,Prawn,Season,Heavy metals,Cd,Cr,Pb}, abstract={<p class="MsoNormal" style="text-align:justify;"> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">The concentration levels of some potentially toxic trace elements such
as </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">Cd, Cr, and Pb </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> in the muscle
tissue of some shrimp and prawn species </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">from North­eastern Mediterranean Sea, </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">Gulf of Mersin </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">, Turkey were seasonally
determined in this study. The effects of seasons on the potentially toxic trace
elements levels of regional commercially valuable five different shrimp and
prawn species </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> (green tiger
prawn- <i>Penaeus semisulcatus, </i> kuruma
prawn- <i>Marsupenaeus japonicus, </i>
caramote prawn- <i>Melicertus kerathurus, </i>
deepwater pink shrimp- <i>Parapenaeus
longirostris, </i> speckled shrimp- <i>Metapenaeus
monoceros </i>) were determined. 30 individuals of each species were caught by
bottom trawling </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> from the Mediterranean Sea (Gulf of Mersin) </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">in four seasons in 2013. Shrimp and prawn samples were
extracted using digestion method with concentrated nitric acid and per chloric
acid and metal levels were measured using ICP/MS. </span> <span lang="en-gb" style="font-size:10pt;font-family:Arial, sans-serif;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">The differences in Cd, Cr and Pb levels of
muscle tissue in all species were determined as 0.44-1.40 µg/g dw, 1.38-5.80
µg/g dw, and 1.99-13.42 µg/g dw, respectively. The quantitative relationships
generally found in the metal levels of muscle in all the species were: Pb>
Cr> Cd, but the concentration of each potentially toxic heavy metal varied seasonally.
If the data obtained by this study were evaluated with respect to the data in
U.S. Food and Drug Administration (2013), it would be obviously seen that all
the shrimp and prawn species living in Gulf of Mersin were not contaminated
with Cd and Cr but contaminated with Pb. However, if it is analyzed in
accordance with European Commission (2011) and Turkish Food Codex (2011), all
species except winter and spring samples of <i>Parapenaeus
longirostris </i> are contaminated with Cd and Pb.   </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> </p> <p> </p>}, number={2}, publisher={Özkan ÖZDEN}