Grano-Maldonado M I, Rubalcava-Ramirez F, Rodriguez-Santiago A, Garcia-Vargas F, Medina-Jasso A, Nieves-Soto M
Universidad Autónoma de Occidente, Av. del Mar 1200, Flamingos, 82149, Mazatlán, Sinaloa México.
Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen s / n. A. P. 610. Mazatlán, Sinaloa, México.
Helminthologia. 2019 Sep 1;56(3):211-218. doi: 10.2478/helm-2019-0019. eCollection 2019 Sep.
The aim of this investigation was to identify the parasites present in the largely understudied pleasure oyster in Sinaloa state in the northwestern Mexican Pacific coast. Inspection of twenty-eight oysters collected on "Ceuta" lagoon revealed the presence of the digenean . (Digenea: Acanthocolpidae) cysts. Metacercariae were found encapsulated and embedded in the digestive gland and mantle tissue of oysters. The prevalence of infection revealed that 84.6 % were infected, the abundance was 13.62, with a mean intensity of 16.09 per host. The members of this genus are characterized by a double crown of spines in the cephalic region surrounding the buccal opening of the worm. Significantly, we report the first incidence of the digenean sp of the family Acanthocolpidae parasitizing . Further we report that this bivalve is now considered a new intermediate host, and the northwestern Mexican Pacific coast is a new geographical distribution area for this digenean. The findings contribute to our understanding of the biology, biodiversity and host preference of these parasites, with implications for health risks posed by human consumption of the pleasure oyster.
本调查的目的是确定墨西哥西北太平洋沿岸锡那罗亚州研究较少的食用牡蛎中存在的寄生虫。对在“休达”泻湖采集的28只牡蛎进行检查，发现了复殖吸虫（复殖目：棘口科）囊肿。发现囊蚴被包囊并嵌入牡蛎的消化腺和外套膜组织中。感染率显示84.6%的牡蛎受到感染，丰度为13.62，每个宿主的平均感染强度为16.09。该属成员的特征是在虫体口部周围的头部区域有双冠棘。值得注意的是，我们首次报道了棘口科复殖吸虫属物种寄生的情况。此外，我们报告这种双壳贝类现在被认为是一种新的中间宿主，墨西哥西北太平洋沿岸是这种复殖吸虫的一个新的地理分布区域。这些发现有助于我们了解这些寄生虫的生物学、生物多样性和宿主偏好，对人类食用食用牡蛎所带来的健康风险具有启示意义。
