Universidade Estadual do Norte Fluminense Darcy Ribeiro, CBB, Laboratório de Ciências Ambientais, Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-620, Brazil.
Universidade Estadual do Norte Fluminense Darcy Ribeiro, CBB, Laboratório de Ciências Ambientais, Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-620, Brazil.
Mar Pollut Bull. 2019 Jul;144:134-139. doi: 10.1016/j.marpolbul.2019.04.074. Epub 2019 May 16.
The hypothesis that carnivorous consumers associated with the seabed are more likely to ingest marine debris was tested based on stomach content analysis of fish (Trichiurus lepturus and species of Ariidae) and cetaceans (Sotalia guianensis and Pontoporia blainvillei). Among 596 stomach contents, only 22 (3.7%) contained debris. The debris was flexible plastic, nylon yard, paper, latex, styrofoam and cigarette filter. The proportion of stomach contents with debris varied among species: P. blainvillei (pelagic demersal consumer) presented the highest frequency of ingestion (15.7%), while T. lepturus (pelagic consumer), S. guianensis (pelagic consumer) and Ariidae (demersal consumer) presented similar frequencies (1.3-1.8%). Therefore, a feeding site in the water column does not predict the probability of debris ingestion. Concerning these species, this probability seems to be more associated with prey-capture strategies (or feeding behavior), regardless of debris availability in the environment.
基于对鱼类（长尾真鲨和鲷科鱼类）和鲸目动物（南美江豚和白鱀豚）的胃内容物分析，检验了与海底有关的肉食消费者更有可能摄入海洋垃圾这一假说。在 596 份胃内容物中，仅有 22 份（3.7%）含有垃圾。这些垃圾包括柔性塑料、尼龙绳、纸张、乳胶、泡沫塑料和香烟过滤嘴。含垃圾的胃内容物在不同物种中的比例有所不同：白鱀豚（远洋底层消费者）的摄入频率最高（15.7%），而长尾真鲨（远洋消费者）、南美江豚（远洋消费者）和鲷科鱼类（底层消费者）的摄入频率相似（1.3-1.8%）。因此，在水柱中的觅食地点并不能预测摄入垃圾的概率。对于这些物种，这种概率似乎更与捕食策略（或摄食行为）有关，而与环境中垃圾的存在与否无关。
