Related Experiment Video
Updated: Sep 19, 2025
09:39
Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri Uljanin 1884 for Experimental Studies
Published on: August 9, 2019
9.9K
A new dactylogyrid from Myloplus asterias
Germán Augusto Murrieta Morey1,2, Jennifer Anais Sarmiento3, Enrique Rios Isern3
1Instituto de Investigaciones de la Amazonía Peruana (IIAP), Laboratorio de Parasitología y Sanidad Acuícola. Carretera Iquitos-Nauta Km. 4.5, Iquitos, Loreto, Peru. gmurrieta@iiap.gob.pe.
Acta Parasitologica
|June 6, 2025
Summary
A new monogenoid species, Anacanthorus santaclarae n. sp., was discovered on M. asterias gills in Peru. This finding updates knowledge of Amazonian fish parasites.
Area of Science:
- Ichthyoparasitology
- Aquatic Biology
- Biodiversity Research
Background:
- Monogenoids are significant parasites of Amazonian fish.
- Updated knowledge on parasitic fauna is crucial for understanding host-parasite dynamics.
- Research on monogenoids in the Amazon basin is ongoing.
Purpose of the Study:
- To identify novel monogenoid species infecting M. asterias.
- To contribute to the catalog of parasitic fauna in Amazonian fish.
- To document new species from the Nanay River, Peru.
Main Methods:
- Collected 30 M. asterias specimens from the Santa Clara Market, Iquitos, Peru.
- Fish were reportedly captured in the Nanay River.
- Analyzed gill parasites at the IIAP's Parasitology and Aquaculture Health Laboratory.
Main Results:
- A new species of Monogenoidea, Anacanthorus santaclarae n. sp., was identified.
- The new species possesses unique morphological characteristics of its haptoral apparatus (MCO and accessory piece).
- This represents the first record of parasites for M. asterias.
Conclusions:
- Anacanthorus santaclarae n. sp. is the eighth species of the genus documented in Peru.
- This discovery enhances the understanding of monogenoid diversity in Amazonian freshwater fish.
- The study provides baseline data for future research on M. asterias parasitology.
Related Concept Videos
01:27Diversity of Protists IV
137
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
137
01:15Diversity of Protists I
145
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
145
01:27Diversity of Protists III
142
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
142
01:27Diversity of Protists II
154
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
154
01:30Bacterial Phylum Spirochaetes
126
Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased...
126
01:24Bacterial Phylum Tenericutes
103
The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...
103