Occurrence of Neobenedenia girellae (Monogenea: Capsalidae) in Gilthead Seabream Sparus aurata (Actinopterygii: Sparidae) Cultured in Portugal

Tedesco, Perla; Caffara, Monica; Moreira, Nuno Miguel Ribeiro; Gomes, César; Gustinelli, Andrea; Fioravanti, Marialetizia

doi:10.3390/pathogens10101269

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…28S rDNA sequence spans a highly variable region (Brazenor et al, 2018); thus, one base may have been inserted while the parasites were maintained. In addition, the 28S rDNA sequence of the present populations was 100% identical to that of N. girellae infecting the skin of cage reared gilthead seabream Sparus aurata from Portugal (GenBank accession no MW690096, Tedesco et al, 2021). Therefore, we assume that the observed insertion of this 28S rDNA region is not specific to our populations.…”

Section: Dna Profiling Of the Parasitementioning

confidence: 50%

Temporal Change in the Swimming Ability and Infectivity of the Oncomiracidium of a Monogenean <i>Neobenedenia girellae</i>

Hirazawa,

Kitagawa,

Hirata

2023

Fish Pathol.

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In this study, we assessed the influence of different water temperatures on the swimming ability of the oncomiracidium of Neobenedenia girellae. In addition, we investigated the temporal change in their infectivity to Seriola dumerili after hatching at 25°C. Most oncomiracidia in the cell culture flask filled with seawater deciliated and predominantly crept on the bottom by the end of 6 h experiment. Approximately 9% of the oncomiracidia in seawater-containing wells of a 12-well cell culture plate were non-swimming and became trapped in the air-water surface interface. However, these effects were mitigated when a polyethylene sheet was placed on the seawater surface in the wells. When conducting the experiment using this method, the oncomiracidia remained active and were still swimming at 60, 72, and 108 h after hatching at 30°C, 25°C, and 20°C, respectively. The retention time of the oncomiracidia's swimming ability decreased as the water temperature increased. The oncomiracidial infectivity was reduced after 24-25.5 h or more after hatching. At 5 days after the exposure to S. dumerili, the number of attached N. girellae was significantly lower, and their body length was significantly shorter when using oncomiracidia that were 36-37.5 h after hatching compared to freshly hatched ones.

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Section: Dna Profiling Of the Parasitementioning

confidence: 50%

Temporal Change in the Swimming Ability and Infectivity of the Oncomiracidium of a Monogenean <i>Neobenedenia girellae</i>

Hirazawa,

Kitagawa,

Hirata

2023

Fish Pathol.

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“…The fish losses due to this capsalid monogenean parasite infestation are less than other pathogenic organisms such as viruses and bacteria. However, it can be one of the predisposing factors for infection with more dangerous pathogenic organisms (Tedesco et al 2021). Benedenia will cause itching, lesions, and skin damage which will cause fish prices to drop (Whittington and Chisholm 2008).…”

Section: Introductionmentioning

confidence: 99%

First microphological and molecular parasitological survey of Benedenia in humpback grouper (Cromileptes altivelis) of Lampung and Situbondo, Indonesia

AMIIN,

SUBEKTI,

MASITHAH

et al. 2024

Biodiversitas

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Abstract. Amiin MK, Subekti S, Masithah ED, Nirmala D, Yunus M, Santanumurti MB, Rivaie AR. 2023. First microphological and molecular parasitological survey of Benedenia in humpback grouper (Cromileptes altivelis) of Lampung and Situbondo, Indonesia. Biodiversitas 24: 6858-6867. Capsalid monogenean infections, such as Benedenia, affect grouper aquaculture production. Benedenia will cause lesions and skin damage which will cause fish prices to drop. Secondary infection from bacteria, viruses, and fungi by Benedenia triggers a slow growth rate and even mortality. Benedenia infection on grouper has been conducted in Indonesia, specifically in this study in Lampung and Situbondo. However, molecular identification of this parasite is still lacking. This study aims to determine the microscopic and molecular characteristics of Benedenia from the Hurun Bay waters of Lampung and the North Coast of the Java Sea, Situbondo. The main parameters observed in this study were DNA base sequence, morphology, and phylogenetic tree. Benedenia from Lampung (637 bp) and Situbondo (741 bp) in this study was confirmed by the morphological and molecular close as Benedenia sargocentron with nucleotides. Interestingly, the similarity was less than 98% with B. sargocentron with accession ID JN797597.1 (similarity of 97.15% from Lampung and 86.33% from Situbondo). It could be indicated as a new species of Benedenia. The prevalence of Benedenia in Lampung was 90%, while Situbondo showed 80% with 3 parasite/fish intensity for each location. The outcome of this study is the characteristics of Benedenia from Lampung and Situbondo were similar to B. sargocentron according to morphological and molecular identification. This is the first report of B. sargocentron from Lampung and Situbondo since no molecular identification has been done in those places to confirm their species. Further research by another molecular target apart from 28S rRNA should be needed to identify this parasite more accurately.

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Morphological and molecular characterization of Encotyllabe vallei Monticelli, 1907 (Monopisthocotylea, Monogenea) from the gilthead seabream Sparus aurata Linnaeus (Teleostei, Sparidae) from the southwestern Mediterranean and notes on host specificity of the genus Encotyllabe Diesing, 1850

Zedam,

Bouguerche,

Ahmed

et al. 2023

J. Helminthol.

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Incomplete original descriptions, the unavailability or poor conditions of specimens and the lack of detailed redescriptions have caused the validity of several species of the genus Encotyllabe Diesing, 1850 to be questioned. To date, seven of the recognized species were described upon one or two specimens, hindering study of intraspecific variations. This was made worse by considering few morphoanatomical differences sufficient to erect new species. Among Encotyllabe spp. occurring in Mediterranean waters, E. vallei was first described from the gilt-head bream Sparus aurata (Sparidae) off Italy. Although beautifully illustrated for a paper from that century, morphometric data for E. vallei from the type-host S. aurata remain unavailable. Previous records of E. vallei provided either morphometrical or molecular data, and its validity was questioned. We provide a redescription of E. vallei based on newly collected specimens from the S. aurata from the southwestern Mediterranean (off Algeria) using integrative taxonomy. Analysis of cox1 sequences of E. vallei from S. aurata, compared to sequences from other sparid hosts, mainly Pagellus bogaraveo, revealed a divergence not exceeding 2%, suggesting a stenoxenic specificity for this monogenean. Given that P. bogaraveo is the type-host for Encotyllabe pagelli, we were tempted to suggest a synonymy between E. vallei and E. pagelli. We refrained from doing so because E. pagelli was first described from the Atlantic coast off Brest, France. Morphological data for Encotyllabe from P. bogaraveo are warranted assessing the host specificity of E. vallei and whether there might be a species complex within individual sparid fish species.

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Occurrence of Neobenedenia girellae (Monogenea: Capsalidae) in Gilthead Seabream Sparus aurata (Actinopterygii: Sparidae) Cultured in Portugal

Cited by 4 publications

References 33 publications

Temporal Change in the Swimming Ability and Infectivity of the Oncomiracidium of a Monogenean <i>Neobenedenia girellae</i>

Temporal Change in the Swimming Ability and Infectivity of the Oncomiracidium of a Monogenean <i>Neobenedenia girellae</i>

First microphological and molecular parasitological survey of Benedenia in humpback grouper (Cromileptes altivelis) of Lampung and Situbondo, Indonesia

Morphological and molecular characterization of Encotyllabe vallei Monticelli, 1907 (Monopisthocotylea, Monogenea) from the gilthead seabream Sparus aurata Linnaeus (Teleostei, Sparidae) from the southwestern Mediterranean and notes on host specificity of the genus Encotyllabe Diesing, 1850

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