International Journal of Pure and Applied Zoology

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Short Communication - International Journal of Pure and Applied Zoology (2021) Volume 9, Issue 8


Rigoberto Fimia Duarte1*, Lorenzo Diéguez Fernández2, 3, Milton Vinicio Monzón Muñoz4,Jaime Abraham Juárez Sandoval5, Irismarys Sosa Cabrera2, Adolfo Eusebio Pérez Arruti2

1Faculty of Health Technology and Nursing, University of Medical Sciences, Villa Clara, Cuba

2Provincial Center of Hygiene, Epidemiology and Microbiology, Department of Vector Control, Camagüey, Cuba

3Technological Faculty of Health "Octavio de la Concepción de la Pedraja", University of Medical Sciences, Camagüey, Cuba

4Health Area of Jutiapa, Department of Vector Control/Entomology and Vector Control Laboratory, Jutiapa City, Guatemala

5NPC/Communicable Diseases, Surveillance and Analysis PAHO/WHO, Guatemala

Corresponding Author:
Rigoberto Fimia Duarte
Faculty of Health Technology and Nursing,
University of Medical Sciences,
Villa Clara,
E-mail: [email protected]

Received 05th November, 2021; Accepted 19th November, 2021; Published 26th November, 2021

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The presence of the freshwater mollusk Planorbella duryi (Wetherby, 1879) (Gastropoda: Planorbidae) (=Helisoma duryi Wetherby, 1879) in Jutiapa Department (Guatemala) is reported for the first time. The seven specimens with different stages of growth were captured in the Güija Lagoon belonging to the "El Güayabo" Village, Asunción Mita municipality.


Freshwater mollusk, Jutiapa, Planorbella duryi, Specimens.


Several species of freshwater molluscs intervene in the biocycle of parasitizes that cause human diseases, such as fasciolosis, angiostrongilosis, paragonomosis and schistosomiasis (Iannacone et al., 2013; Fimia et al., 2014[1,2] Vázquez & Cobián, 2014), without forgetting the importance that they have from the veterinary point of view when serving as intermediate hosts of diseases that cause affectations to cattle and sheep, such as the cases of fasciolosis and paramphistomosis (Vázquez & Sánchez, et al., 2015)[3].

The freshwater malacofauna of Guatemala has received very little attention, starting these studies intensively from 2017 in the Department of Jutiapa, as there is a great lack of knowledge of the biological impact that species cause in natural nursery (Diéguez et al., 2019)[4].. Therefore, as a result of the malacological surveys carried out in 2019, this first report of the species is made for the department and the country.

Methods & Results

A small population of Planorbella duryi (Wetherby, et al., 1879) (Gastropoda: Planorbidae elioa duryi Wetherby, 1879) consisting of seven specimens with different growth stages, was discovered on November 11, 2019 in a freshwater reservoir known as Laguna Güija from the “El Güayabo” village, Asunción Mita municipality, Department of Jutiapa (Reg.=No.52-2019-Jut).

This lagoon is used for public baths and commercial fishing. In the collection of the samples, a bronze strainer (15 cm diameter with 1 mm mesh pitch) was used to remove the different substrates and once sieved; the entire content was poured into a white plastic tray on which the specimens were separated with the help of a soft copper clamp. The method consisted of capture per unit of effort for 30 min without replacement. A total of 25 bodies of natural fresh water, of the lentic and lotic type, shallow with and without aquatic vegetation, floating and adjacent, were surveyed. As a result, a body of water resulted in the presence of the species (4.00%).

The P. duryi mollusk is characterized by presenting two different shapes in the shell (discoid and scalar), as well as a straight spiral apex and a mantle with a thick renal crest (Vázquez & Sánchez, et al., 2015).

Discussion and Conclusion

As a result of the studies carried out in Jutiapa, eight genera and ten species had been registered; some of great medical and veterinary relevance with Drepanotrema being the most abundant group (Diéguez et al., 2019). Shells of Biomphalaria helophila had been collected from the genus Biomphalaria (Diéguez et al., 2020) to which P. duryi belongs, which are being studied through their internal anatomy.

Another important data was the finding of invasive species that have a marked relevance as bioregulators of other mollusk species, such as the cases of Tarebia granifera (Lamarck, et al., 1816) and Melanoides tuberculata (Müller, et al., 1774) (Diéguez et al., 2019).

From this new report, it is recommended to deepen ecological studies on the relationships of this species with those already reported, as well as its influence on population dynamics and probable departmental distribution patterns, in order to have evidence that allows us to design and implement surveillance strategies and control of molluscs of sanitary relevance more successful in this Central American country.

Ethic Aspects

This investigation was subject to ethical norms that facilitated to reduce to the minimum the damage possible to the gathered specimens, to the breeding places, as well as to the technical personnel involved in the identification of the gathered samples, for this way, to be able to generate new knowledge without violating the established ethical principles for these cases. All the authors involved in the investigation, publication and diffusion of the results, we are responsible for the dependability and accuracy of the show results (DHAMM, 2013)[5].

Competing Interests

The authors declare that there is no conflict of interests regarding the publication of this paper.


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