<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>There are relatively few studies on parasite fauna of marine fishes in Philippine waters. This study aimed to determine the prevalence of marine ascaridoid infection in <italic>Decapterus</italic> species in Balayan Bay and Tayabas Bay. A total of 371 fishes belonging to three different species of <italic>Decapterus</italic> (<italic>D. tabl</italic> [<italic>n</italic> = 130], <italic>D. macrosoma</italic> [<italic>n</italic> = 121], and <italic>D. maruadsi</italic> [<italic>n</italic> = 120]) were collected. Ascaridoid parasite larvae were found in all fish host species, with an overall fish infection rate of 22%. The highest infection rate was observed in <italic>D. tabl</italic> (27.69%), followed by <italic>D. macrosoma</italic> (19%), and then <italic>D. maruadsi</italic> (17.50%). Moreover, a higher prevalence of infection was detected in Tayabas Bay (27.57%) than in Balayan Bay (15.59%). Molecular analyses based on the <italic>ITS2</italic> and <italic>18S rRNA</italic> gene supported the identification of the larvae into two species: <italic>Anisakis typica</italic> and <italic>Raphidascaris</italic> (<italic>Ichthyascaris</italic>) <italic>lophii</italic>. This is the first report of the genetic identification of these two helminth parasites in <italic>Decapterus</italic> fish species in the Philippines. Paucity in the database of Philippine marine fish parasites warrants more research efforts, especially concerning economically important fish species with implications to food safety and food security.</p></abstract>

There are relatively few studies on parasite fauna of marine fishes in Philippine waters. This study aimed to determine the prevalence of marine ascaridoid infection in Decapterus species in Balayan Bay and Tayabas Bay. A total of 371 fishes belonging to three different species of Decapterus (D. tabl [n = 130], D. macrosoma [n = 121], and D. maruadsi [n = 120]) were collected. Ascaridoid parasite larvae were found in all fish host species, with an overall fish infection rate of 22%. The highest infection rate was observed in D. tabl (27.69%), followed by D. macrosoma (19%), and then D. maruadsi (17.50%). Moreover, a higher prevalence of infection was detected in Tayabas Bay (27.57%) than in Balayan Bay (15.59%). Molecular analyses based on the ITS2 and 18S rRNA gene supported the identification of the larvae into two species: Anisakis typica and Raphidascaris (Ichthyascaris) lophii. This is the first report of the genetic identification of these two helminth parasites in Decapterus fish species in the Philippines. Paucity in the database of Philippine marine fish parasites warrants more research efforts, especially concerning economically important fish species with implications to food safety and food security.

Prevalence and Molecular Characterization of Ascaridoid Parasites of Philippine <italic>Decapterus</italic> species

Journal of Nematology

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Prevalence and Molecular Characterization of Ascaridoid Parasites of Philippine  species

There are relatively few studies on parasite fauna of marine fishes in Philippine waters. This study aimed to determine the prevalence of marine ascaridoid...

Prevalence and Molecular Characterization of Ascaridoid Parasites of Philippine Decapterus species

Article Category: Research Paper

Publicado en línea: 14 ago 2022

Páginas: -

Recibido: 25 mar 2021

DOI: https://doi.org/10.2478/jofnem-2022-0030

Palabras clave
host–parasite relationship, molecular characterization, ()

© 2022 Dela Cruz et al. published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Prevalence and Molecular Characterization of Ascaridoid Parasites of Philippine Decapterus species

Article Category: Research Paper

Publicado en línea: 14 ago 2022

Páginas: -

Recibido: 25 mar 2021

DOI: https://doi.org/10.2478/jofnem-2022-0030

Palabras clavehost–parasite relationship, molecular characterization, ()

© 2022 Dela Cruz et al. published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Palabras clave
host–parasite relationship, molecular characterization, ()