Trypanorhyncha是通常感染海鱼的昆虫。许多研究详细介绍了锥虫物种的生物学,但是关于这些寄生虫产生的病理变化的信息是有限的。昏暗的石斑鱼是保护几种海洋生态系统所必需的基石物种。考虑到他们脆弱的保护状况以及为培养他们所做的努力,确定由Trypanorhyncha引起的影响至关重要。这里,我们旨在确定加那利群岛暗色石斑鱼中Trypanorhyncha的患病率和病理变化。锥虫的患病率为96%。严重的,在腹腔里,有许多幼虫充满的囊肿和结节。这些被嵌入大量的纤维化中,产生内脏粘连。组织学上,影响腹膜,胃,和肠道有许多退化的包壳的硬木耳和成熟的结缔组织的广泛沉积。这些发现表明,Trypanorhyncha在加那利群岛的成年暗色石斑鱼中非常普遍,产生渐进性和慢性反应。此外,鱼的免疫系统似乎试图通过纤维包裹消除寄生虫。尽管如此,当邻近的细胞或组织被压缩且其功能受损时,广泛的纤维化可能对鱼类健康产生不利影响。
Trypanorhyncha are cestodes commonly infecting marine fish. Numerous studies have detailed the biology of Trypanorhyncha species, but information on the pathological changes produced by these parasites is limited. Dusky groupers are keystone species necessary for the preservation of several marine ecosystems. Considering their vulnerable state of conservation and the efforts being made to culture them, identification of the effects caused by Trypanorhyncha is vital. Here, we aimed to determine the prevalence and pathological changes produced by Trypanorhyncha in dusky groupers from the Canary Islands. The prevalence of trypanorhynch plerocerci was 96%. Grossly, in the abdominal cavity, there were numerous larvae-filled cysts and nodules. These were embedded in abundant fibrosis, producing visceral adhesions. Histologically, affecting the peritoneum, stomach, and intestine there were numerous degenerated encysted plerocerci and extensive deposition of mature connective tissue. These findings indicate that Trypanorhyncha is highly prevalent in adult dusky groupers from the Canary Islands, producing a progressive and chronic response. Furthermore, fish immune system appears to attempt to eliminate the parasites through fibrous encapsulation. Nonetheless, extensive fibrosis may have a detrimental impact on fish health when adjacent cells or tissues are compressed and their functions impaired.