Long-term changes in the type, but not amount, of ingested plastic particles in short-tailed shearwaters in the southeastern Bering Sea.
Long-term changes in the type, but not amount, of ingested plastic particles in short-tailed shearwaters in the southeastern Bering Sea.
复制标题
白令海东南部的短尾海鸥摄入的塑料颗粒的类型（而非数量）发生了长期变化。
DOI：
10.1016/s0025-326x(02)00130-3
复制
发表时间：
2002
影响因子：
5.8
通讯作者：
J. Parga
中科院分区：
文献类型：
--
作者：
L. Vlietstra;J. Parga
我们报告目前（1997-1999年，2001年）的发病率和摄入的塑料短尾剪水（Puffinus tenuirostris）在白令海东南部，并比较我们的结果与塑料剪水报告在1970-1978年。我们还研究了塑料负荷和剪切水体质量之间的相关性。我们发现，在1997-1999年和2001年取样的84%（N=330）的剪水含有塑料。自20世纪70年代以来，摄入塑料的发生率和数量没有显着变化。相比之下，塑料的主要类型随着时间的推移而发生变化，从工业塑料到用户塑料。塑料摄入量和发病率的季节性模式也从20世纪70年代的初夏和夏末的峰值水平变化到20世纪90年代末和2001年的仲夏。我们认为，自20世纪70年代以来，白令海海鸟使用的浮游生物塑料的成分发生了变化。Shearwater体重似乎很少，如果在所有受损的塑料，至少在目前的消费水平。
We report the current (1997–1999, 2001) incidence and amount of ingested plastic in short-tailed shearwaters (Puffinus tenuirostris) in the southeastern Bering Sea and compare our results with plastic reported in shearwaters during 1970–1978. We also examine correlations between plastic loads and shearwater body mass. We found that 84% (N=330) of shearwaters sampled in 1997–1999 and 2001 contained plastic. The incidence and amount of ingested plastic have not significantly changed since the 1970s. In contrast, the predominant type of plastic has changed over time, from industrial plastic to user plastic. Seasonal patterns in the incidence and amount of ingested plastic also changed from peak levels during early and late summer in the 1970s to mid summer in the late 1990s and 2001. We suggest that the availability of neuston plastic to seabirds in the Bering Sea has undergone a shift in composition since the 1970s. Shearwater body mass appears little if at all impaired by plastic, at least at present levels of consumption.