科里的剪切水作为监测浮动塑料的关键生物指标
Yasmina Rodríguez1, Airam Rodríguez2, Willem M G M van Loon3
1Instituto de Investigação em Ciências do Mar - OKEANOS, Universidade dos Açores, 9900-138 HORTA, Portugal.
Environment international
|March 29, 2024
概括
科里·科里 (Cory Cory) 是一个美国人.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学环境科学
- 保护生物学 保护生物学
背景情况:
- 海洋垃圾,特别是塑料污染,对海洋生态系统构成重大威胁.
- 海洋鸟类,特别是Procellariiformes,非常容易受到塑料摄入的影响.
- 科里的剪切水 (Calonectris borealis) 被确定为监测塑料污染的关键物种.
研究的目的:
- 为了调查不同年龄段和地理位置的Cory's shearwaters (Calonectris borealis) 的塑料摄入情况.
- 分析该物种内塑料污染的时间趋势和空间变化.
- 评估科里岛的剪切水作为海洋垃圾的生物指标的适用性.
主要方法:
- 在2015年至2022年间从阿佐尔群岛和加拿大群岛收集的1,238只已故的科里剪水鸟 (幼和成年) 进行了尸检.
- 从胃肠道,主要是胃肠道,量化和表征塑料物品.
- 综合添加混合效应模型用于塑料摄入数据的时间和空间分析.
主要成果:
- 在Cory的剪切水中观察到高频率的塑料摄入 (90%).
- 幼的塑料负荷比成年人高,年龄组之间的塑料形态相似.
- 来自加拿大群岛的科里的剪切水从加拿大群岛摄入了更多的塑料,特别是线状物品,这表明与渔业相关的西北非洲食场受到更高的污染.
结论:
- 科里的剪切水,特别是受光污染影响的幼,作为北大西洋塑料污染的有效生物指标.
- 该研究强调渔业是加拿大群岛地区海洋垃圾的潜在来源.
- 这些发现支持使用这种物种来监测浮动塑料垃圾的变化,帮助MSFD和OSPAR等海洋战略框架.
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