This works provides information on the presence in Peru of two invasive species of the genus Ceratium: C. hirundinella (O.F. Müller) Dujardin and C. furcoides (Levander) Langhans. Information is provided on the distribution of both species in Peruvian water bodies, as well as data on their abundance.

The present work registers for the first time the cyanobacteria Sphaerocavum brasiliense Azevedo y Sant’Anna and Microcystis wesenbergii (Komárek) Komárek in Kondrateva (Microcystaceae, Cyanophyceae) in an algal bloom on Huacachina lagoon (Ica), including the first report of Sphaerocavum for Peru. We suggest the necessity of monitoring these bloom-forming cyanobacteria.

This work presents the first record of Lemmermmanniella uliginosa from Peru based on periphyton and sediment samples from Caucato wetland (San Clemente district, Ica department). Furthermore, the genus Lemmermmanniella is recorded for the first time for Peru. Morpho-taxonomic comparison with other populations reported in tropical regions is discussed.

En el presente trabajo se registra por primera vez a las cianobacterias Sphaerocavum brasiliense Azevedo y Sant’Anna y Microcystis wesenbergii (Komárek) Komárek in Kondrateva (Microcystaceae, Cyanophyceae) en una floración algal de la laguna Huacachina (Ica), incluyendo el primer reporte del género Sphaerocavum para el Perú. Se sugiere el monitoreo de estas cianobacterias por ser formadoras de floraciones algales.

This work presents the first record of Lemmermmanniella uliginosa from Peru based on periphyton and sediment samples from Caucato wetland (San Clemente district, Ica department). Furthermore, the genus Lemmermmanniella is recorded for the first time for Peru. Morpho-taxonomic comparison with other populations reported in tropical regions is discussed.

The present study aimed to describe the richness of the Phylum Euglenophyta associated with the dry season in Yarinacocha Lake, Pucallpa, Peru, in 2022. The research was developed in 8 sampling stations located within the lake. The methods of collection, identification and analysis of the biological community under study were conducted following the guidelines established by Ortega et al. (2014).  A total of 22 taxa were reported as new records for Peru. The euglenoid community was mainly composed of 1 order (Euglenales), 2 families (Euglenaceae and Phacaceae) and 6 genera (Euglena, Euglenaformis, Strombomonas, Trachelomonas, Lepocinclis and Phacus). The highest species richness was found in the station near the “Nueva Luz de Fátima '' settlement, while the lowest was recorded in front of the restaurant "La Jungla Ecolodge'' and San Juan port. The information provided in this stu...

La región amazónica peruana alberga un gran número de ecosistemas acuáticos los cuales permiten la presencia de diversos organismos de flora y fauna, entre ellos, las algas son componentes muy importantes en las cadenas alimenticias acuáticas, pudiendo estar asociadas (epifiton, metafiton) a las raíces, tallos u hojas de macrófitas. Estudios realizados sobre la diversidad algal en la Amazonía peruana están referidos mayormente a la llanura amazónica más no a la “ceja de selva”. La laguna El Oconal, ubicada en el distrito de Villa Rica, Oxapampa, es un ecosistema importante a nivel local, el cual se encuentra afectado por actividades humanas, lugar que fue elegido para realizar el presente trabajo, cuyo objetivo fue determinar la diversidad y abundancia relativa de las algas (excepto Bacillariophyceae) asociadas a macrófitas; para lo cual se realizaron dos salidas de campo...

The present study aimed to describe the richness of the Phylum Euglenophyta associated with the dry season in Yarinacocha Lake, Pucallpa, Peru, in 2022. The research was developed in 8 sampling stations located within the lake. The methods of collection, identification and analysis of the biological community under study were conducted following the guidelines established by Ortega et al. (2014).  A total of 22 taxa were reported as new records for Peru. The euglenoid community was mainly composed of 1 order (Euglenales), 2 families (Euglenaceae and Phacaceae) and 6 genera (Euglena, Euglenaformis, Strombomonas, Trachelomonas, Lepocinclis and Phacus). The highest species richness was found in the station near the “Nueva Luz de Fátima '' settlement, while the lowest was recorded in front of the restaurant "La Jungla Ecolodge'' and San Juan port. The information provided in this stu...