Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, B.P. 73, Uvira, Democratic Republic Congo.
Parasitol Res. 2012 Nov;111(5):2049-61. doi: 10.1007/s00436-012-3052-1. Epub 2012 Sep 16.
Lake Tanganyika is the deepest and oldest African Great Lake and of economic importance. While the diversity of its endemic cichlid radiations yielded scientific interest, a number of cichlid tribes have few representatives in the lake. Some of those, namely Oreochromini (ex-Tilapiini), Haplochromini and Tylochromini, reach higher species numbers in riverine systems. Conversely, the phylogenetic position of the monospecific and endemic Boulengerochromini is unclear. The oreochromines Oreochromis tanganicae and Oreochromis niloticus, the haplochromine Astatotilapia burtoni, the tylochromine Tylochromis polylepis and the boulengerochromine Boulengerochromis microlepis, the largest cichlid species worldwide, were surveyed for ancyrocephalid monogenean gill parasites. Five new species are proposed. Cichlidogyrus gillardinae sp. n. is described from A. burtoni, Cichlidogyrus mbirizei sp. n. from O. tanganicae and Cichlidogyrus nshomboi sp. n. from B. microlepis. T. polylepis harbours Cichlidogyrus mulimbwai sp. n., Cichlidogyrus muzumanii sp. n. and a third, presently undescribed species. Four species known from outside the Tanganyika Basin were retrieved on the oreochromines. The host species are scientific models or important in the sectors of fisheries or ornamental fish trade. Moreover, their phylogenetic positions render them well-suited to help elucidate the historic relationships between riverine and lacustrine African cichlids. In this framework, their Cichlidogyrus fauna is compared to congeners known from African rivers and to the few Tanganyika representatives described. While the parasites of Oreochromis, A. burtoni and T. polylepis are reminiscent of those infecting related hosts throughout Africa, B. microlepis hosts a Cichlidogyrus morphotype typical of Lake Tanganyika. This supports its placement within an endemic cichlid radiation.
坦噶尼喀湖是非洲最深和最古老的大湖，具有重要的经济意义。虽然其特有丽鱼科鱼类的多样性引起了科学兴趣，但该湖的一些丽鱼科部落的代表成员很少。其中一些，即 Oreochromini（前Tilapiini）、Haplochromini 和 Tylochromini，在河流系统中达到了更高的物种数量。相反，单种和特有 Boulengerochromini 的系统发育位置尚不清楚。特有种 Oreochromis tanganicae 和 Oreochromis niloticus、特有种 Astatotilapia burtoni、特有种 Tylochromis polylepis 和特有种 Boulengerochromis microlepis（世界上最大的丽鱼科鱼类）都被调查了其Ancistrocephalus 单殖吸虫的鳃寄生虫。提出了五个新种。从 A. burtoni 中描述了 Cichlidogyrus gillardinae sp. n.，从 O. tanganicae 中描述了 Cichlidogyrus mbirizei sp. n.，从 B. microlepis 中描述了 Cichlidogyrus nshomboi sp. n.。T. polylepis 寄生了 Cichlidogyrus mulimbwai sp. n.、Cichlidogyrus muzumanii sp. n. 和第三个目前尚未描述的种。在坦噶尼喀湖以外发现了四种已知的种。这些宿主物种是科学模型，或在渔业或观赏鱼贸易部门中很重要。此外，它们的系统发育位置使它们非常适合帮助阐明非洲河流和湖泊丽鱼之间的历史关系。在这个框架内，将它们的 Ancistrocephalus 寄生虫与非洲河流中的同类种进行了比较，并与描述的少数坦噶尼喀湖代表种进行了比较。虽然 Oreochromis、A. burtoni 和 T. polylepis 的寄生虫类似于感染整个非洲相关宿主的寄生虫，但 B. microlepis 宿主的 Ancistrocephalus 形态型是坦噶尼喀湖特有的。这支持了它在特有丽鱼科辐射中的位置。
