The heterogeneity of the contents of trace metals in the dominant copepod species in the seawater around northern Taiwan
2010; Brill; Volume: 83; Issue: 2 Linguagem: Inglês
10.1163/001121609x12511103974493
ISSN1568-5403
AutoresShih‐Hui Hsiao, Jiang‐Shiou Hwang, Tien-Hsi Fang,
Tópico(s)Mercury impact and mitigation studies
Resumo[The dominant copepod species, Canthocalanus pauper (Giesbrecht, 1888), Oncaea venusta Philippi, 1843, Temora turbinata (Dana, 1849), and Undinula vulgaris (Dana, 1849), collected from the sea around northern Taiwan and from the southern East China Sea extending to the Okinawa Trough, were analysed for trace metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) to study possible spatial heterogeneity in these species of copepods. Trace metal concentrations ranged as follows: Cd, 0.39-141.78 μg/g; Co, 0.03-91.9 μg/g; Cr, 2.26-243.5 μg/g; Cu, 4.36-195.5 μg/g; Fe, 19.96-2886.9 μg/g; Mn, 5.34-735.8 μg/g; Ni, 1.69-954.9 μg/g; Pb, 0.04-85.8 μg/g; and Zn, 5.57-941.8 μg/g. The average concentration of trace metals in the copepod samples analysed follows the sequence: Fe > Zn > Ni > Mn > Cu > Cr > Cd > Co > Pb. The sequence of total metal contents in the copepods is: Oncaea venusta > Temora turbinata > Canthocalanus pauper > Undinula vulgaris. The content of the same metal shows considerable variation both intra- and inter-specifically, and the difference in concentration can vary 1 to 3 orders of magnitude. We also found that metal concentrations in males are higher than in females in Oncaea venusta and Undinula vulgaris. In addition, copepod metal quota also display spatial variation: coastal water > southern East China Sea > Kuroshio Water, suggesting that the metal contents of copepods are influenced by the water quality of their marine environment. Les especes dominantes de copepodes, Canthocalanus pauper (Giesbrecht, 1888), Oncaea venusta Philippi, 1843, Temora turbinata (Dana, 1849), et Undinula vulgaris (Dana, 1849), collectees de la mer autour du nord de Taiwan et au sud-est de la mer de Chine jusqu'a la fosse Oceanique d'Okinawa ont ete analysees pour les metaux traces (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, et Zn) afin d'etudier une possible heterogeneite spatiale chez ces especes de copepodes. Les concentrations de ces metaux presentent les valeurs suivantes: Cd, 0,39-141,78 μg/g; Co, 0,03-91,9 μg/g; Cr, 2,26243,5 μg/g; Cu, 4,36-195,5 μg/g; Fe, 19,96-2886,9 μg/g; Mn, 5,34-735,8 μg/g; Ni, 1,69-954,9 μg/g; Pb, 0,04-85,8 μg/g; et Zn, 5,57-941,8 μg/g. La concentration moyenne de ces metaux dans les echantillons de copepodes analyses suit la sequence: Fe > Zn > Ni > Mn > Cu > Cr > Cd > Co > Pb. La sequence du contenu total en metaux dans les copepodes est: Oncaea venusta > Temora turbinata > Canthocalanus pauper > Undinula vulgaris. La quantite d'un meme metal montre des variations intra- et inter-specifiques considerables, et la difference en concentration peut varier entre 1 et 3 d'ordre d'amplitude. Nous avons aussi trouve que les concentrations en metal chez les mâles sont plus elevees que chez les femelles chez Oncaea venusta et Undinula vulgaris. De plus, les quotas de metaux par copepode montrent des variations spatiales: eau cotiere > sud-est de la mer de Chine > eaux de Kuroshio, suggerant que le contenu en metal des copepodes est influence par la qualite de l'eau de leur environnement marin., The dominant copepod species, Canthocalanus pauper (Giesbrecht, 1888), Oncaea venusta Philippi, 1843, Temora turbinata (Dana, 1849), and Undinula vulgaris (Dana, 1849), collected from the sea around northern Taiwan and from the southern East China Sea extending to the Okinawa Trough, were analysed for trace metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) to study possible spatial heterogeneity in these species of copepods. Trace metal concentrations ranged as follows: Cd, 0.39-141.78 μg/g; Co, 0.03-91.9 μg/g; Cr, 2.26-243.5 μg/g; Cu, 4.36-195.5 μg/g; Fe, 19.96-2886.9 μg/g; Mn, 5.34-735.8 μg/g; Ni, 1.69-954.9 μg/g; Pb, 0.04-85.8 μg/g; and Zn, 5.57-941.8 μg/g. The average concentration of trace metals in the copepod samples analysed follows the sequence: Fe > Zn > Ni > Mn > Cu > Cr > Cd > Co > Pb. The sequence of total metal contents in the copepods is: Oncaea venusta > Temora turbinata > Canthocalanus pauper > Undinula vulgaris. The content of the same metal shows considerable variation both intra- and inter-specifically, and the difference in concentration can vary 1 to 3 orders of magnitude. We also found that metal concentrations in males are higher than in females in Oncaea venusta and Undinula vulgaris. In addition, copepod metal quota also display spatial variation: coastal water > southern East China Sea > Kuroshio Water, suggesting that the metal contents of copepods are influenced by the water quality of their marine environment. Les especes dominantes de copepodes, Canthocalanus pauper (Giesbrecht, 1888), Oncaea venusta Philippi, 1843, Temora turbinata (Dana, 1849), et Undinula vulgaris (Dana, 1849), collectees de la mer autour du nord de Taiwan et au sud-est de la mer de Chine jusqu'a la fosse Oceanique d'Okinawa ont ete analysees pour les metaux traces (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, et Zn) afin d'etudier une possible heterogeneite spatiale chez ces especes de copepodes. Les concentrations de ces metaux presentent les valeurs suivantes: Cd, 0,39-141,78 μg/g; Co, 0,03-91,9 μg/g; Cr, 2,26243,5 μg/g; Cu, 4,36-195,5 μg/g; Fe, 19,96-2886,9 μg/g; Mn, 5,34-735,8 μg/g; Ni, 1,69-954,9 μg/g; Pb, 0,04-85,8 μg/g; et Zn, 5,57-941,8 μg/g. La concentration moyenne de ces metaux dans les echantillons de copepodes analyses suit la sequence: Fe > Zn > Ni > Mn > Cu > Cr > Cd > Co > Pb. La sequence du contenu total en metaux dans les copepodes est: Oncaea venusta > Temora turbinata > Canthocalanus pauper > Undinula vulgaris. La quantite d'un meme metal montre des variations intra- et inter-specifiques considerables, et la difference en concentration peut varier entre 1 et 3 d'ordre d'amplitude. Nous avons aussi trouve que les concentrations en metal chez les mâles sont plus elevees que chez les femelles chez Oncaea venusta et Undinula vulgaris. De plus, les quotas de metaux par copepode montrent des variations spatiales: eau cotiere > sud-est de la mer de Chine > eaux de Kuroshio, suggerant que le contenu en metal des copepodes est influence par la qualite de l'eau de leur environnement marin.]
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