Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)

This article belongs to the Section Veterinary Clinical Studies.

Detalles Bibliográficos
Autores: Rueda-Díez, Elisa, Hernández-Milián, Gema, Hernández-González, Alberto, Ivaylova-Tsanicheva, Silvina, Jacquot, Sébastien, Petitguyot, Marie, Gutiérrez-Muñoz, Paula, Covelo, Pablo, Pin, Xabier, López, Alfredo, Pierce, Graham J.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/421519
Acceso en línea:http://hdl.handle.net/10261/421519
Access Level:acceso abierto
Palabra clave:Delphinus delphis
Common dolphin
Galician coast
Anisakis spp.
Parasite load
Diet
id ES_ed44e0a32eee1bc66bd50f06ea21c1a0
oai_identifier_str oai:digital.csic.es:10261/421519
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
title Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
spellingShingle Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
Rueda-Díez, Elisa
Delphinus delphis
Common dolphin
Galician coast
Anisakis spp.
Parasite load
Diet
title_short Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
title_full Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
title_fullStr Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
title_full_unstemmed Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
title_sort Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)
dc.creator.none.fl_str_mv Rueda-Díez, Elisa
Hernández-Milián, Gema
Hernández-González, Alberto
Ivaylova-Tsanicheva, Silvina
Jacquot, Sébastien
Petitguyot, Marie
Gutiérrez-Muñoz, Paula
Covelo, Pablo
Pin, Xabier
López, Alfredo
Pierce, Graham J.
author Rueda-Díez, Elisa
author_facet Rueda-Díez, Elisa
Hernández-Milián, Gema
Hernández-González, Alberto
Ivaylova-Tsanicheva, Silvina
Jacquot, Sébastien
Petitguyot, Marie
Gutiérrez-Muñoz, Paula
Covelo, Pablo
Pin, Xabier
López, Alfredo
Pierce, Graham J.
author_role author
author2 Hernández-Milián, Gema
Hernández-González, Alberto
Ivaylova-Tsanicheva, Silvina
Jacquot, Sébastien
Petitguyot, Marie
Gutiérrez-Muñoz, Paula
Covelo, Pablo
Pin, Xabier
López, Alfredo
Pierce, Graham J.
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio para la Transición Ecológica y el Reto Demográfico (España)
Xunta de Galicia
Hernández-Milián, Gema [0000-0003-2729-8348]
Petitguyot, Marie [0000-0002-8313-5343]
Gutiérrez-Muñoz, Paula [0000-0002-6768-9418]
Pierce, Graham J. [0000-0002-4744-4501]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Delphinus delphis
Common dolphin
Galician coast
Anisakis spp.
Parasite load
Diet
topic Delphinus delphis
Common dolphin
Galician coast
Anisakis spp.
Parasite load
Diet
description This article belongs to the Section Veterinary Clinical Studies.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/421519
url http://hdl.handle.net/10261/421519
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.3390/ani16040682
https://doi.org/10.3390/ani16040682
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869423439036547072
spelling Parasite (Anisakis spp.) Load and Its Relationship with Diet in Common Dolphins (Delphinus delphis) Along the Coast of Galicia (NW Spain)Rueda-Díez, ElisaHernández-Milián, GemaHernández-González, AlbertoIvaylova-Tsanicheva, SilvinaJacquot, SébastienPetitguyot, MarieGutiérrez-Muñoz, PaulaCovelo, PabloPin, XabierLópez, AlfredoPierce, Graham J.Delphinus delphisCommon dolphinGalician coastAnisakis spp.Parasite loadDietThis article belongs to the Section Veterinary Clinical Studies.[Simple Summary] The common dolphin (Delphinus delphis) is one of the main cetacean species along the Galician coast and acts as the final host for the nematode parasite Anisakis. These parasites are acquired through the consumption of infected fish and cephalopods. Understanding the relationship between these parasites and D. delphis can help us assess the status of Anisakis populations in the marine ecosystem and, since this parasite can be transmitted to humans, contribute to improving public health safety by providing insights into potential risks. This study aimed to investigate which factors, including diet, influence the number of parasites in the stomachs of D. delphis. Results revealed that the number of parasites has increased over the years and is higher in the first months of the year. Larger dolphins had more parasites, while dolphins that died due to incidental capture in fishing gear had fewer parasites. Dolphins with a higher number of Atlantic mackerel and blue whiting in their stomachs showed a lower parasitic load. This confirms that the diet might be an important factor in determining Anisakis load in D. delphis even if it does not clearly identify which prey species contribute most to the Anisakis load in dolphins. This study offers insights into how diet and other ecological factors influence the parasitic load in D. delphis.The common dolphin (Delphinus delphis) is one of the most abundant small cetaceans along the Galician coast and a definitive host for the nematode parasite Anisakis, 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 Anisakis 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 Anisakis load. In addition, dolphins that died from bycatch had the lowest parasitic loads. The numbers of Atlantic mackerel (Scomber scombrus) and blue whiting (Micromesistius poutassou) 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 Anisakis 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 D. delphis.The Galician stranding network (CEMMA) received support from the Revargal project, which is financed by European Union—NextGenerationEU through the Recovery, Transformation and Resilience Plan, as well as the Fundación Biodiversidad of the Ministerio Español para la Transición Ecológica y el Reto Demográfico and the Consellería de Medio Ambiente—Xunta de Galicia. Both administrations provided the legal permits for handling cetacean species and the collection of biological samples. Marie A.C. Petitguyot was supported by the project “Thresholds in human exploitation of marine vertebrates” (SeaChanges), EU MSCA-ITN-ETN, Grant Agreement number 813383, 2019–2023. Alberto Hernández González received a pre-doctoral grant from the Xunta de Galicia co-financed with funds from the operational programme FSE-Galicia 2014–2020. Graham Pierce received support under the project “E-DNA, Microbiomes, Photogrammetry and Hormones—Assessment Techniques In Cetaceans” (EMPHATIC), funded under the Biodiversa+ programme by the Fundación Biodiversidad of the Ministerio Español para la Transición Ecológica y el Reto Demográfico.Peer reviewedMultidisciplinary Digital Publishing InstituteEuropean CommissionMinisterio para la Transición Ecológica y el Reto Demográfico (España)Xunta de GaliciaHernández-Milián, Gema [0000-0003-2729-8348]Petitguyot, Marie [0000-0002-8313-5343]Gutiérrez-Muñoz, Paula [0000-0002-6768-9418]Pierce, Graham J. [0000-0002-4744-4501]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2026202620262026info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/421519reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.3390/ani16040682https://doi.org/10.3390/ani16040682Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4215192026-05-22T06:33:51Z
score 15.198674

Similares en LA Referencia