Reimer L W
Division of Biology, Section Güstrow, University of Rostock, Germany.
Appl Parasitol. 1993 May;34(2):143-50.
84 specimens of the sea hake Merluccius capensis and 60 of M. paradoxus were investigated parasitologically along the coast of Namibia in 1988. Between both fish species there was a high coincidence. 18 species of parasites could be stated. Distinction is remarkable between the north and south parts of the investigation area with a boundary at about 25 degrees 30' south. Southern to this border line of probably different fish stocks Brachiella merluccii is absent and the prevalence of Scolex pleuronectis and Leptotheca spec. is significantly higher. In M. capensis parasitation by Leptotheca spec., Anthocotyle merluccii and Anisakis spec. 1. is increasing with higher age groups. In M. paradoxus parasitation by Leptotheca spec. and Anthocotyle merluccii is decreasing with higher age groups and that of Clestobothrium crassiceps remains the same level.
1988年，在纳米比亚海岸对84份南非无须鳕标本和60份异无须鳕标本进行了寄生虫学调查。两种鱼类之间存在高度一致性。共鉴定出18种寄生虫。在调查区域的北部和南部之间存在显著差异，分界线大约在南纬25度30分。在这条可能划分不同鱼群的边界线以南，梅氏短腺吸虫不存在，而褶胸鱼单殖吸虫和细鞘吸虫属的感染率明显更高。在南非无须鳕中，细鞘吸虫属、梅氏花杯吸虫和简单异尖线虫1型的感染率随年龄组的增加而上升。在异无须鳕中，细鞘吸虫属和梅氏花杯吸虫的感染率随年龄组的增加而下降，而粗头克莱斯托吸虫的感染率保持在同一水平。
