Endoparasites in Grey Seals (Halichoerus grypus) By-Caught in Latvian Commercial Coastal Fishery

被引：0

作者：

Seleznova, Maija ^{[1
]}

Cirulis, Aivars ^{[1
,2
]}

Mateusa, Maira ^{[1
,3
]}

Kruze, Eriks ^{[1
]}

Rozenfelde, Loreta ^{[1
]}

Piginka-Vjaceslalova, Inga ^{[1
]}

Geine-Romanova, Lilija ^{[1
,3
]}

Ustups, Didzis ^{[1
]}

Deksne, Gunita ^{[1
,2
]}

机构：

[1] Inst Food Safety Anim Hlth & Environm BIOR, LV-1076 Riga, Latvia

[2] Univ Latvia, Fac Med & Life Sci, LV-1004 Riga, Latvia

[3] Latvia Univ Life Sci & Technol, Fac Vet Med, LV-3004 Jelgava, Latvia

来源：

ANIMALS | 2025年 / 15卷 / 01期

关键词：

grey seals; endoparasites; <italic>Anisakidae</italic>; <italic>Contracaecum</italic>; COD GADUS-MORHUA; FOXES VULPES-VULPES; CONTRACAECUM-OSCULATUM; GIARDIA-DUODENALIS; BALTIC SEA; MOLECULAR CHARACTERIZATION; PSEUDOTERRANOVA-DECIPIENS; HARBOR SEALS; CRYPTOSPORIDIUM; PREVALENCE;

D O I：

10.3390/ani15010045

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The grey seal (Halichoerus grypus) 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 Contracaecum sp. and Corynosoma semerme. High prevalence rates were observed for Corynosoma strumosum (69.4%), Parafilaroides gymnurus (44.8%), and Pseudamphistomum truncatum (27.1%). Giardia duodenalis 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 C. semerme (Rs = -0.324, p = 0.013) and the nutritional status of the grey seals.

引用

页数：12

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