IMARES Wageningen UR , Department Experimental Ecology, P.O. Box 57, 1780 AB Den Helder, The Netherlands.
Environ Sci Technol. 2013 Aug 6;47(15):8818-24. doi: 10.1021/es400931b. Epub 2013 Jul 11.
To quantify the occurrence of ingested plastic in fish species caught at different geographical positions in the North Sea, and to test whether the fish condition is affected by ingestion of plastics, 1203 individual fish of seven common North Sea species were investigated: herring, gray gurnard, whiting, horse mackerel, haddock, atlantic mackerel, and cod. Plastic particles were found in 2.6% of the examined fish and in five of the seven species. No plastics were found in gray gurnard and mackerel. In most cases, only one particle was found per fish, ranging in size from 0.04 to 4.8 mm. Only particles larger than 0.2 mm, being the diameter of the sieve used, were considered for the data analyses, resulting in a median particle size of 0.8 mm. The frequency of fish with plastic was significantly higher (5.4%) in the southern North Sea, than in the northern North Sea above 55°N (1.2%). The highest frequency (>33%) was found in cod from the English Channel. In addition, small fibers were initially detected in most of the samples, but their abundance sharply decreased when working under special clean air conditions. Therefore, these fibers were considered to be artifacts related to air born contamination and were excluded from the analyses. No relationship was found between the condition factor (size-weight relationship) of the fish and the presence of ingested plastic particles.
为了量化在北海不同地理位置捕捞的鱼类中摄入塑料的发生情况，并测试鱼类的状况是否因摄入塑料而受到影响，对 7 种常见北海鱼类的 1203 条个体鱼进行了调查：鲱鱼、灰鲂、牙鳕、鲐鱼、黑线鳕、大西洋鲭鱼和鳕鱼。在 2.6%的检查鱼中发现了塑料颗粒，在 7 种鱼中有 5 种发现了塑料颗粒。灰鲂和鲭鱼中没有发现塑料颗粒。在大多数情况下，每条鱼只发现一个颗粒，大小从 0.04 到 4.8 毫米不等。只有大于 0.2 毫米的颗粒（即所用筛子的直径）才被认为是数据分析的一部分，结果得出的颗粒平均大小为 0.8 毫米。在北海南部（55°N 以南），发现有塑料的鱼类频率（5.4%）明显高于北海北部（55°N 以北）（1.2%）。在英吉利海峡的鳕鱼中发现的频率最高（>33%）。此外，最初在大多数样本中检测到小纤维，但在特殊的清洁空气条件下工作时，其丰度急剧下降。因此，这些纤维被认为是与空气传播污染有关的人工制品，并被排除在分析之外。未发现鱼类的状况因子（大小-重量关系）与摄入的塑料颗粒之间存在关系。
