Humboldt State University, Department of Biological Sciences, 1 Harpst St., Arcata, CA 95521, USA.
Mar Pollut Bull. 2010 May;60(5):765-7. doi: 10.1016/j.marpolbul.2010.03.008. Epub 2010 Apr 8.
In 2008 two male sperm whales (Physeter macrocephalus) stranded along the northern California coast with large amounts of fishing net scraps, rope, and other plastic debris in their stomachs. One animal had a ruptured stomach, the other was emaciated, and gastric impaction was suspected as the cause of both deaths. There were 134 different types of nets in these two animals, all made of floating material, varying in size from 10 cm(2) to about 16 m(2). The variability in size and age of the pieces suggests the material was ingested from the surface as debris rather than bitten off from active gear. These strandings demonstrate that ingestion of marine debris can be fatal to large whales, in addition to the well documented entanglements known to impact these species.
2008 年,两只雄性抹香鲸(Physeter macrocephalus)在加利福尼亚州北部海岸搁浅,它们的胃里有大量的渔网碎片、绳索和其他塑料碎片。其中一只鲸鱼的胃破裂,另一只鲸鱼消瘦,怀疑胃堵塞是导致两者死亡的原因。这两只鲸鱼的胃里共有 134 种不同类型的网,全部由漂浮材料制成,大小从 10 平方厘米到 16 平方米不等。这些碎片的大小和年龄的多样性表明,这些材料是作为漂浮物从水面上被吞入的,而不是从活动渔具上被咬下来的。这些搁浅事件表明,摄入海洋碎片除了已知会影响这些物种的缠绕外,对大型鲸鱼也是致命的。