Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait.
Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait.
Mar Pollut Bull. 2018 Aug;133:861-864. doi: 10.1016/j.marpolbul.2018.06.061. Epub 2018 Jun 27.
Copepods are the most abundant metazoans, forming a vital food chain link between the primary producers the phytoplankton and fish. This study presents baseline information on the concentration of Po among calanoid copepods isolated from the Kuwait marine area. The concentration of Po in six species of copepod, including Subeucalanus flemingeri, Parvocalanus crassirostis, Acartia pacifica, Calanopia elliptica, Acrocalanus gibber, and Euterpina acutifrons were 151.3-158.8 Bq kg wwt, 121.1-129.5 Bq kg wwt, 51.23-54.91 Bq kg wwt, 38.88-40.09 Bq kg wwt, 38.07-38.29 Bq kg wwt, and 33.46-36.50 Bq kg wwt, respectively. The Po concentration in seawater shows a seasonal variation, with a higher concentration range of 0.58-0.70 mBq L during summer and autumn, while a lower concentration is found (0.30-0.38 mBq L) during winter and spring. The concentration factor among the copepods varies between 8 ∗ 10 and 5 ∗ 10 that is an order of magnitude higher than the diatoms and dinoflagellates.
桡足类是最丰富的后生动物，在浮游植物和鱼类之间形成了重要的食物链环节。本研究提供了从科威特海域分离出的哲水蚤中 Po 浓度的基线信息。六种桡足类（包括 Subeucalanus flemingeri、Parvocalanus crassirostis、Acartia pacifica、Calanopia elliptica、Acrocalanus gibber 和 Euterpina acutifrons）的 Po 浓度分别为 151.3-158.8 Bq kg wwt、121.1-129.5 Bq kg wwt、51.23-54.91 Bq kg wwt、38.88-40.09 Bq kg wwt、38.07-38.29 Bq kg wwt 和 33.46-36.50 Bq kg wwt。海水中的 Po 浓度呈现季节性变化，夏季和秋季的浓度范围较高，为 0.58-0.70 mBq L，而冬季和春季的浓度较低（0.30-0.38 mBq L）。桡足类之间的浓度因子在 8×10 和 5×10 之间变化，这是硅藻和甲藻的一个数量级。
