Santander-Neto J, Araújo M L G, Lessa R P
Programa de Pós-graduação em Biologia Animal, Universidade Federal de Pernambuco, Rua Prof. Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, CEP 50670-420, Brazil.
Laboratório de Dinâmica de Populações Marinhas-DIMAR, Departamento de Pesca e Aqüicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, CEP 52171-900, Brazil.
J Fish Biol. 2016 Jul;89(1):1026-42. doi: 10.1111/jfb.12951. Epub 2016 Mar 23.
The reproductive biology of Urotrygon microphthalmum was studied based on specimens caught as by-catch in shrimp (Litopenaeus schmitti, Xiphopenaeus kroyeri, Farfantepenaeus subtilis and Farfantepenaeus brasiliensis) fishing operations between March 2010 and March 2012 on the coast of Pernambuco, Brazil. Females reached a larger total length (LT ) and total body mass (MT ) (298 mm and 148 g) than males (250 mm and 90 g). Length at maturity was estimated to be 188 and 199 mm LT for males and females. Uterine fecundity ranged from one to four embryos (mean ± s.d.: 1·85 ± 0·45). Size at birth was estimated to be 105 mm LT . Gestation lasted between 4 and 5 months. The reproductive cycle of U. microphthalmum is hypothesized to be asynchronous and biannual.
基于2010年3月至2012年3月在巴西伯南布哥海岸虾类（凡纳滨对虾、红棕对虾、细角对虾和巴西对虾）捕捞作业中作为副渔获物捕获的标本，对小眼虹彩鲼的繁殖生物学进行了研究。雌性个体的全长（LT）和总体重（MT）（分别为298毫米和148克）大于雄性（分别为250毫米和90克）。估计雄性和雌性的成熟体长分别为188毫米和199毫米LT。子宫繁殖力为1至4个胚胎（平均值±标准差：1.85±0.45）。出生时的大小估计为105毫米LT。妊娠期持续4至5个月。小眼虹彩鲼的繁殖周期被推测为异步且一年两次。
