1. First record of the red alga Compsopogon caeruleus (Balbis ex C. Agardh) Montagne 1846 in the High Paraná River, Argentina-Paraguay
- Author
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Micaela Carolina Escalada, Norma Rosa Meichtry Zaburlin, Leila B. Guzmán, Victor Martín Llano, and Roberto E. Vogler
- Subjects
Compsopogon caeruleus ,MITOCHONDRIAL GENE ,Ecology ,Biology ,Ecología ,FRESHWATER HABITATS ,purl.org/becyt/ford/1 [https] ,Ciencias Biológicas ,Botany ,Parana river ,SOUTH AMERICA ,purl.org/becyt/ford/1.6 [https] ,ALIEN ALGAE ,Ecology, Evolution, Behavior and Systematics ,CIENCIAS NATURALES Y EXACTAS - Abstract
The presence of a freshwater red alga (Rhodophyta), Compsopogon caeruleus, was recorded for the first time in the High Paraná River. It was detected in 2016 and 2017 at five points along 290 km of the border between Argentina and Paraguay. High densities of filaments of the red alga were recorded in the summer months, forming masses flowing through the middle of the riverbed and banks, and not recorded in the main body of the Yacyretá Binational Reservoir (Argentina-Paraguay). We identified the species both morphologically and using molecular methods. The samples were characterized by having short, thorn-like branches, which resembled the morphology reported for Compsopogon aeruginosus, nowadays a synonym of C. caeruleus. Partial DNA sequences from cytochrome c oxidase subunit I gene confirmed species identification as C. caeruleus. Because of its adaptability to a wide range of environmental conditions, we speculate that the species could establish in the High Paraná River and potentially rapidly increase its distribution downstream throughout temperate regions of South America. Fil: Meichtry Zaburlin, Norma Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina Fil: Guzmán, Leila Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; Argentina Fil: Escalada, Micaela Carolina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina Fil: Llano, Víctor Martín. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina Fil: Vogler, Roberto Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; Argentina
- Published
- 2019