Grupo Interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, San Cristóbal de La Laguna, 38071, Santa Cruz de Tenerife, Spain.
Grupo de Investigación en Ecología Marina Aplicada y Pesquerías (EMAP), Instituto de Investigación de Estudios Ambientales y Recursos Naturales (I-UNAT), Universidad de Las Palmas de Gran Canaria, Campus de Tafira, 35017, Las Palmas de Gran Canaria, Las Palmas, Spain.
Environ Sci Pollut Res Int. 2024 Oct;31(50):59882-59893. doi: 10.1007/s11356-024-35207-4. Epub 2024 Oct 3.
This study focused on 120 specimens of the shrimp Palaemon elegans collected in intertidal zones in eight selected areas. This study aimed to assess the suitability of P. elegans as a bioindicator of natural and anthropogenic marine pollution. Metal concentrations of aluminum (Al), cadmium (Cd), copper (Cu), iron (Fe), lead (Pb), and zinc (Zn) were measured in shrimp collected from various sites in the Canary Islands, including areas affected by volcanic activity, industrial activity, and control zones. The determination of metal concentrations was conducted using inductively coupled plasma optical emission spectrophotometry (ICP-OES). The results showed significant differences in metal concentrations across the studied sites, with the highest levels of Al, Cu, Fe, Pb, and Zn observed in areas impacted by the Tajogaite volcanic eruption and harbor activity. Sites near old landfills and sewage pipes also exhibited elevated levels of Cd, Cu, and Pb, indicating strong anthropogenic influence. Al was found in the highest concentration in Harbour, reaching 25.7 ± 6.2 mg/kg, while the lowest concentration was observed in Control Lp at 11.5 ± 0.69 mg/kg. Conversely, lower metal concentrations were detected in control zones and areas with high dinoflagellate presence, suggesting a potential role of bioremediation by marine phytoplankton. The ability of P. elegans to accumulate metals in its tissues, particularly in areas of high pollution, highlights its potential as a bioindicator species. This study underscores the importance of P. elegans in monitoring marine pollution and provides insights into the environmental impact of both natural and human-induced contamination on coastal ecosystems.
本研究聚焦于在八个选定区域的潮间带采集的 120 个对虾 Palaemon elegans 标本。本研究旨在评估 Palaemon elegans 是否适合作为海洋自然和人为污染的生物指示剂。使用电感耦合等离子体发射光谱法（ICP-OES）测量了从加那利群岛不同地点采集的虾体内的铝（Al）、镉（Cd）、铜（Cu）、铁（Fe）、铅（Pb）和锌（Zn）等金属的浓度。研究结果表明，在所研究的地点，金属浓度存在显著差异，在受 Tajogaite 火山喷发和港口活动影响的地区，Al、Cu、Fe、Pb 和 Zn 的浓度最高。靠近旧垃圾填埋场和污水管的地点也显示出 Cd、Cu 和 Pb 的浓度升高，表明受到强烈的人为影响。在 Harbour 地区发现 Al 的浓度最高，达到 25.7 ± 6.2mg/kg，而在 Control Lp 地区观察到的浓度最低，为 11.5 ± 0.69mg/kg。相反，在控制区和高甲藻存在的地区检测到的金属浓度较低，这表明海洋浮游植物的生物修复作用可能发挥了作用。Palaemon elegans 能够在其组织中积累金属，特别是在污染严重的地区，这突出了其作为生物指示剂物种的潜力。本研究强调了 Palaemon elegans 在监测海洋污染方面的重要性，并为了解自然和人为污染对沿海生态系统的环境影响提供了新的视角。
