Universidade Federal de Pernambuco, Departamento de Oceanografia, Av. Arquitetura, s/n, Cidade Universitária, 50670-901 Recife, PE, Brazil.
Universidade Federal Rural de Pernambuco, Departamento de Biologia, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil.
An Acad Bras Cienc. 2021 Apr 9;93(2):e20190231. doi: 10.1590/0001-3765202120190231. eCollection 2021.
Morphological abnormalities in crustaceans have been registered and several are attributed to pollution and others anthropogenic activities. This study reports for the first time a temporal record of the amount and variety of morphological abnormalities in Acartia lilljeborgii, in an impacted neotropical estuary. The specimens were obtained from Suape port area, Northeast Brazil, between May 2009 and September 2010 using a 300 µm plankton net. Seven types of abnormalities were observed in one of the terminal spines of the prosome, but no temporal variation of abnormalities was found in our study. The deformities were registered in 85.7% of samples and they were found in up to 10% of the individuals (3.2 ± 2.9%). The proportion of females with abnormalities was greater than for males, in opposite to most previous reports. Due to its high distribution and abundance in part of the neotropical Atlantic coastal area, A. lilljeborgii has the potential to be used as a bioindicator of environmental conditions, although the reasons of the abnormality occurrences should be accurately investigated.
甲壳动物的形态异常已被记录下来，其中一些归因于污染和其他人为活动。本研究首次报告了在受影响的新热带河口，中胸刺的数量和形态异常的时间记录。标本是 2009 年 5 月至 2010 年 9 月期间在巴西东北部的苏阿佩港地区用 300μm 的浮游生物网采集的。在一个终刺中观察到了七种类型的异常，但在我们的研究中未发现异常的时间变化。畸形在 85.7%的样本中被记录到，在多达 10%的个体中（3.2±2.9%）发现了畸形。异常雌性的比例大于雄性，与大多数先前的报告相反。由于 A. lilljeborgii 在新热带大西洋沿海地区的一部分分布广泛且数量丰富，因此它具有作为环境条件生物指标的潜力，尽管应该准确调查异常发生的原因。
