Selezņova Maija, Cīrulis Aivars, Mateusa Maira, Krūze Ēriks, Rozenfelde Loreta, Pigiņka-Vjačeslalova Inga, Geine-Romanova Lilija, Ustups Didzis, Deksne Gunita
Institute of Food Safety, Animal Health and Environment "BIOR", LV-1076 Riga, Latvia.
Faculty of Medicine and Life Sciences, University of Latvia, LV-1004 Riga, Latvia.
Animals (Basel). 2024 Dec 27;15(1):45. doi: 10.3390/ani15010045.
The grey seal () is a fish-eating mammal and an apex predator in the Baltic Sea. It serves as the definitive host for several parasite species that utilize fish as intermediate or paratenic hosts. This study aimed to determine the endoparasite fauna of grey seals by-caught in the Latvian commercial coastal fishery and to analyze the impact of parasites on the seals' nutritional status. A total of 59 grey seals were collected for parasitological analysis. Six parasite species were identified, with all seals infected by sp. and . High prevalence rates were observed for (69.4%), (44.8%), and (27.1%). was detected in two animals, marking its first report in the Baltic Sea grey seals. A significant negative correlation was found between the infection intensity of (Rs = -0.324, = 0.013) and the nutritional status of the grey seals.
灰海豹（）是一种以鱼为食的哺乳动物，也是波罗的海的顶级掠食者。它是几种寄生虫物种的终末宿主，这些寄生虫以鱼作为中间宿主或转续宿主。本研究旨在确定在拉脱维亚商业沿海渔业中误捕的灰海豹体内的体内寄生虫区系，并分析寄生虫对海豹营养状况的影响。共收集了59只灰海豹进行寄生虫学分析。鉴定出六种寄生虫物种，所有海豹均感染了 属和 属。观察到 （69.4%）、 （44.8%）和 （27.1%）的感染率很高。在两只动物中检测到了 ，这是其在波罗的海灰海豹中的首次报告。发现 （Rs = -0.324， = 0.013）的感染强度与灰海豹的营养状况之间存在显著负相关。
