Etchegoin J A, Sardella N H
Parasitology Laboratory, Instituto Nacional de Investigacion y Desarrollo Pesquero, INIDEP, Mar del Plata, Argentina.
Int J Parasitol. 1990 Dec;20(8):1009-14. doi: 10.1016/0020-7519(90)90042-l.
A total of 2164 common hake Merluccius hubbsi captured in the Argentine-Uruguayan Common Fishing Zone was examined for parasitic copepods. The fish were infested with Chondracanthus palpifer and Neobrachiella insidiosa f. lageniformis, the former parasitizing the buccal cavity and the latter the branchial arches. C. palpifer showed an increase in both prevalence and intensity in relation to the host size; infestation with N. insidiosa f. lageniformis decreased with increasing length of hake. Attachment site preferences and variations in the parasite distribution patterns as related to the host biology were observed. Evidence of negative association between copepod species and seasonal changes in the parasite composition was also found.
对在阿根廷 - 乌拉圭共同捕鱼区捕获的2164条无须鳕（Merluccius hubbsi）进行了寄生桡足类检查。这些鱼感染了触须软骨鱼虱（Chondracanthus palpifer）和内隐新鳃虱内弯亚种（Neobrachiella insidiosa f. lageniformis），前者寄生于口腔，后者寄生于鳃弓。触须软骨鱼虱的感染率和感染强度均随宿主鱼的大小增加而上升；内隐新鳃虱内弯亚种的感染率则随无须鳕体长的增加而下降。观察到了寄生虫的附着部位偏好以及与宿主生物学相关的寄生虫分布模式变化。还发现了桡足类物种与寄生虫组成季节性变化之间存在负相关的证据。
