Abstract：
Astrangia poculata inhabits coasts near dense human populations in the northeastern United States and may be exposed to elevated pollutants. No studies have assessed heavy metal concentration in temperate corals despite their proximity to anthropogenic activity. We collected colonies four times in one year and analyzed coral tissue for As, Cd, Cr, Pb, and Zn. Most heavy metals except for As were 1.5-3.3 times lower in summer compared to other seasons. Pb, As, and Cd were three orders of magnitude higher than concentrations for other Narragansett Bay benthic species, suggesting that A. poculata bioaccumulates more readily and/or inhabits more contaminated areas of the Bay. Zn, Pb, and As had similar concentrations to tropical corals inhabiting anthropogenically polluted sites. While physiological impacts are unknown, this population of A. poculata may have a higher tolerance for heavy metal pollution than most scleractinians, making it an interesting candidate for future studies.
摘要：
Alstrangiapoculata栖息在美国东北部人口稠密的人群附近，可能暴露于高污染物中。尽管温带珊瑚接近人为活动，但尚无研究评估其重金属浓度。我们在一年内收集了四次菌落，并分析了珊瑚组织中的As，Cd,Cr,Pb,和Zn。除As外，大多数重金属在夏季比其他季节低1.5-3.3倍。Pb,As,Cd比其他纳拉甘西特湾底栖物种的浓度高三个数量级，这表明A.poculata的生物积累更容易和/或栖息在海湾污染更严重的地区。Zn,Pb,和As的浓度与居住在人为污染地点的热带珊瑚相似。虽然生理影响未知，与大多数巩膜动物相比，这种A.poculata对重金属污染的耐受性更高，使其成为未来研究的有趣候选人。
