Buzzi N S, Marcovecchio J E
Instituto Argentino de Oceanografía (IADO - CONICET-CCT Bahía Blanca), Camino La Carrindanga Km7, Edificio E1, C.C. 804, 8000 Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, 8000 Bahía Blanca, Argentina.
Instituto Argentino de Oceanografía (IADO - CONICET-CCT Bahía Blanca), Camino La Carrindanga Km7, Edificio E1, C.C. 804, 8000 Bahía Blanca, Argentina; Universidad Tecnológica Nacional - FRBB, 11 de Abril 445, 8000 Bahía Blanca, Argentina; Universidad FASTA, Gascón 3151, 7600 Mar del Plata, Argentina.
Mar Pollut Bull. 2016 Nov 15;112(1-2):452-458. doi: 10.1016/j.marpolbul.2016.07.007. Epub 2016 Jul 18.
Contamination by heavy metals causes serious effects in marine systems. Nowadays, the combination of chemical and biological data is recommended in monitoring programs. Metallothioneins (MT) are early-warning signals of metal exposure and are widely used in biomonitoring. The present research evaluates the heavy metals levels in sediments and the MT synthesis in the crab Neohelice granulata from the Bahía Blanca Estuary (BBE). Then, the recovery capabilities of N. granulata followed by a depuration phase are assessed. Results demonstrate a slow decline in the level of metals in the study area. In relation to MT, female crabs showed elevated MT when compared to males. Furthermore, MT synthesis diminished after the depuration phase. These data constitute the first MT information in organisms from the BBE and may be considered as baseline for future studies in this matter. Although pollution level found was low, further biomonitoring considering both types of data is recommended.
重金属污染对海洋系统造成严重影响。如今，在监测项目中建议结合化学和生物数据。金属硫蛋白（MT）是金属暴露的早期预警信号，被广泛用于生物监测。本研究评估了布兰卡湾河口（BBE）沉积物中的重金属水平以及蟹类新粒招潮蟹（Neohelice granulata）体内MT的合成情况。然后，评估了新粒招潮蟹在净化阶段后的恢复能力。结果表明，研究区域内金属水平呈缓慢下降趋势。就MT而言，雌蟹体内的MT水平高于雄蟹。此外，净化阶段后MT的合成减少。这些数据构成了BBE生物体中首个MT信息，可被视为该领域未来研究的基线。尽管发现的污染水平较低，但建议进一步结合这两类数据进行生物监测。
