AI Article Synopsis
- The study explores the distribution and genetic diversity of anisakid nematodes (Anisakis spp.) in cetaceans, revealing that this aspect of marine ecosystems is often overlooked.
- A total of 478 specimens from various cetacean species across the Northeast Atlantic and Mediterranean were analyzed, showing clear host preferences for different Anisakis species among cetacean families.
- Findings indicate significant genetic differences in some Anisakis populations depending on their cetacean hosts and geographic locations, highlighting the importance of understanding these interactions for conservation in the face of climate change.
Article Abstract
Parasite biodiversity in cetaceans represents a neglected component of the marine ecosystem. This study aimed to investigate the distribution and genetic diversity of anisakid nematodes of the genus Anisakis sampled in cetaceans from the Northeast Atlantic Ocean and the Mediterranean Sea. A total of 478 adults and pre-adults of Anisakis spp. was identified by a multilocus genetic approach (mtDNA cox2, EF1 α - 1 nDNA and nas 10 nDNA gene loci) from 11 cetacean species. A clear pattern of host preference was observed for Anisakis spp. at cetacean family level: A. simplex (s.s.) and A. pegreffii infected mainly delphinids; A. physeteris and A. brevispiculata were present only in physeterids, and A. ziphidarum occurred in ziphiids. The role of cetacean host populations from different waters in shaping the population genetic structure of A. simplex (s.s.), A. pegreffii and A. physeteris was investigated for the first time. Significant genetic sub-structuring was found in A. simplex (s.s.) populations of the Norwegian Sea and the North Sea compared to those of the Iberian Atlantic, as well as in A. pegreffii populations of the Adriatic and the Tyrrhenian Seas compared to those of the Iberian Atlantic waters. Substantial genetic homogeneity was detected in the Mediterranean Sea population of A. physeteris. This study highlights a strong preference by some Anisakis spp. for certain cetacean species or families. Information about anisakid biodiversity in their cetacean definitive hosts, which are apex predators of marine ecosystems, acquires particular importance for conservation measures in the context of global climate change phenomena.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9372146 | PMC |
| http://dx.doi.org/10.1038/s41598-022-17710-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Diatoms-endoparasite association in fish from the marine pacific coast of Colombia (Buenaventura).
PLoS One
December 2024
Animal Science Department, Universidad Nacional de Colombia, Palmira Valle, Colombia.
The association of parasites and diatoms has been previously reported as an important mechanism to control bacteria and parasites to avoid resistance to chemical usage. The aim of this study was to investigate the association between diatoms genus and parasites within the gastrointestinal compartments (GICs) of commercial fish in fisheries of the marine Pacific coast of Colombia (Buenaventura). A total of 104 GICs from marine fish were sampled.
View Article and Find Full Text PDFDetection and Characterization of Visceral Anisakid Nematodes in Blue Whiting from Portuguese Waters.
Foods
November 2024
School of Medicine and Biomedical Sciences, Porto University, 4050-313 Porto, Portugal.
Article Synopsis
- This study explores the high prevalence of Anisakid nematodes in blue whiting caught off Portugal, using molecular detection methods like conventional PCR and Sanger sequencing.
- All 50 fish examined were infected, with a breakdown revealing 68.1% of the larvae as one species, marking a first report for another species in these fish, indicating a significant public health risk due to rising raw seafood consumption.
- The findings emphasize the need for better detection methods and safety practices to minimize the risk of anisakidosis, alongside further research on the allergenic potential of these parasites and their environmental distribution.
New Insights on the Diversity, Ecology and Genetic Population Structure of spp. from Fish and Cetacean Hosts from Northeast Atlantic Waters.
Animals (Basel)
December 2024
Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas, IIM-CSIC, 36208 Vigo, Spain.
In the last 25 years, nematode parasites of the genus have attracted international attention from various socio-economic sectors, with serious concern about the impact of these parasites on seafood quality and safety, and public health (related to both zoonoses and allergy). A knowledge-based understanding of the population structure of spp. is useful to provide valuable data about the infection dynamics, host specificity and its ability to adapt to local environments and to climate change by adapting to the food-web structure.
View Article and Find Full Text PDFThe objective of this opinion was to determine if any wild caught fish species, originating from specific fishing grounds and consumed in the EU/EFTA could be considered free of zoonotic parasites. In this Opinion the term 'fishery products' only refers to fresh finfish. As there are multiple fish species and numerous potential parasites, sp.
View Article and Find Full Text PDFComprehensive review on parasitic infections reported in the common fish found in UT of Jammu and Kashmir, India.
J Parasit Dis
December 2024
Biochemical and Molecular Parasitology Lab, Department of Zoology, Baba Ghulam Shah Badshah University, Rajouri, Jammu and Kashmir India.
The people of Jammu and Kashmir rely heavily on fish as a source of nutritional protein. Fishes also contribute significantly to the local economy of this area. However, several infectious disorders, some of which are brought on by helminth parasites, constitute a persistent threat to fish.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!