{“_”:“加利西亚海岸(西班牙西北部)常见海豚的寄生虫(spp.)负载及其与饮食的关系。”,“i”:[“Anisakis”,“Delphinus delphis”]}
{"_":"Parasite ( spp.) Load and Its Relationship with Diet in Common Dolphins () Along the Coast of Galicia (NW Spain).","i":["Anisakis","Delphinus delphis"]}
{"_":"Parasite ( spp.) Load and Its Relationship with Diet in Common Dolphins () Along the Coast of Galicia (NW Spain).","i":["Anisakis","Delphinus delphis"]}
常见海豚是加利西亚海岸数量最多的小型鲸类之一,也是线虫寄生虫的终末宿主,该寄生虫通过食物链传播给鲸类。本研究旨在分析包括海豚饮食在内的哪些因素影响其寄生虫负荷。研究人员检查了2004至2024年间在加利西亚海岸搁浅海豚的胃内容物样本,对寄生虫数量进行了计数,并基于硬性残留物分析了不同猎物种类对饮食的贡献。采用广义加性模型(GAMs)评估寄生虫负荷(胃内寄生虫数量)与多个假定解释变量(如年份、月份、体型、性别、纬度、身体状况、死亡原因及海豚饮食)之间的关系。结果显示,寄生虫负荷随年份增加呈上升趋势,并具有季节性模式,数量在每年最初几个月达到峰值。海豚体长与寄生虫负荷之间存在显著正相关关系。此外,死于兼捕的海豚寄生虫负荷最低。胃内大西洋鲭鱼和蓝鳕的数量对寄生虫负荷有显著影响:随着这些猎物种类在胃内数量的增加,寄生虫丰度下降。这一结果证实了饮食对寄生虫负荷的影响,但并未揭示哪些物种对寄生虫负荷的贡献最大。该研究为饮食及其他生态因素如何影响海豚寄生虫负荷提供了见解。
The common dolphin () is one of the most abundant small cetaceans along the Galician coast and a definitive host for the nematode parasite , which is transmitted to cetaceans through the food chain. This study aimed to analyse which factors, including dolphin diet, affect the parasitic load. Samples of stomach contents from stranded dolphins along the Galician coast (2004-2024) were examined. The number of parasites was counted, and the contribution of different prey species to the diet was analysed based on hard remains. Generalised Additive Models (GAMs) were used to assess the relationships between parasitic load (number of in the stomach) and various putative explanatory variables (e.g., year, month, size, sex, latitude, body condition, cause of death and diet of the dolphins). Results showed an increase in parasitic load over the years and a seasonal pattern, with numbers peaking in the first months of the year. A significant positive relationship was found between dolphin length and load. In addition, dolphins that died from bycatch had the lowest parasitic loads. The numbers of Atlantic mackerel () and blue whiting () in the stomach had a significant effect on parasite load: parasite abundance decreased as the numbers of these prey species in the stomach increased. This result confirms the influence of diet on load, although it does not reveal which species contribute the most to the parasite load. The study offers insights into how diet and other ecological factors influence the parasitic load in .
Elisa Rueda-Díez, Gema Hernandez-Milian, Alberto Hernandez-Gonzalez, Silvina Ivaylova Tsanicheva, Sébastien T Jacquot, Marie A C Petitguyot, et al. {"_":"Parasite ( spp.) Load and Its Relationship with Diet in Common Dolphins () Along the Coast of Galicia (NW Spain).","i":["Anisakis","Delphinus delphis"]}. Animals : an open access journal from MDPI. 2026; doi:10.3390/ani16040682.
Elisa Rueda-Díez, Gema Hernandez-Milian, Alberto Hernandez-Gonzalez, Silvina Ivaylova Tsanicheva, Sébastien T Jacquot, Marie A C Petitguyot, et al (2026). {"_":"Parasite ( spp.) Load and Its Relationship with Diet in Common Dolphins () Along the Coast of Galicia (NW Spain).","i":["Anisakis","Delphinus delphis"]}. Animals : an open access journal from MDPI. https://doi.org/10.3390/ani16040682
Elisa Rueda-Díez, Gema Hernandez-Milian, Alberto Hernandez-Gonzalez, Silvina Ivaylova Tsanicheva, Sébastien T Jacquot, Marie A C Petitguyot, et al. {"_":"Parasite ( spp.) Load and Its Relationship with Diet in Common Dolphins () Along the Coast of Galicia (NW Spain).","i":["Anisakis","Delphinus delphis"]}[J]. Animals : an open access journal from MDPI, 2026 doi:10.3390/ani16040682.
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