Registro de Cordylophora caspia (Cnidaria, Hydrozoa) en el embalse Río Tercero Mtro. Pistarini (Provincia de Córdoba, Argentina) y sus posibles impactos en este ecosistema
; Rodrigues Capitulo, Alberto 
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Fecha
07/2025
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Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología
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Biologia Acuatica
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1668-4869
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Español
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Cordylophora caspia (Pallas, 1771) es un hidrozoo eurihalino, originario de la región Ponto-Caspiana pero con distribución mundial. Posee un alto potencial invasor debido en gran parte a su capacidad de adaptarse a un amplio rango de temperaturas y salinidad, y generar estructuras de resistencia. Se desarrolla en una gran variedad de hábitats acuáticos continentales, tanto sobre sustratos naturales como artificiales, donde provoca serios problemas de biofouling. Esta especie ha sido introducida accidentalmente en varias regiones del mundo y en esta publicación damos a conocer su primer registro en el embalse Río Tercero Mtro. Pistarini, provincia de Córdoba, Argentina. Allí se ubican la Central Nuclear Embalse, que utiliza sus aguas como refrigerante, y la usina hidroeléctrica Fitz Simon. En monitoreos realizados en agosto y octubre de 2023 en los sistemas de captación de agua de estas instalaciones se hallaron colonias de C. caspia que fueron recolectadas aproximadamente a 18 m de profundidad. El monitoreo de sus poblaciones es fundamental para conocer su impacto ecológico y generar acciones para mitigarlo, ya que su control representa un desafío debido a su gran capacidad reproductiva, su tolerancia a diferentes condiciones ambientales y su resistencia al uso de ciertos productos químicos.
Cordylophora caspia (Pallas, 1771) is a euryhaline hydrozoan native to the PontoCaspian region but with a global distribution. It has a high invasive potential, largely due to its ability to adapt to a wide range of temperatures and salinity levels and to form resistant structures. It thrives in a great variety of freshwater and estuarine habitats, colonizing both natural and artificial substrates, where it causes serious biofouling issues. This species has been accidentally introduced into various regions worldwide, and in this publication, we report its first record in the Río Tercero Mtro. Pistarini Reservoir, Córdoba Province, Argentina. This is where the Embalse Nuclear Power Plant, which uses the reservoir’s waters as coolant, and the Fitz Simon hydroelectric power plant are situated. During monitoring conducted in August and October 2023 in the water intake systems of these facilities, colonies of C. caspia were found at approximately 18 meters in depth. Monitoring its populations is essential to understanding its ecological impact and implementing mitigation measures, as its control presents a challenge due to its high reproductive capacity, tolerance to different environmental conditions, and resistance to certain chemical treatments.
Cordylophora caspia (Pallas, 1771) is a euryhaline hydrozoan native to the PontoCaspian region but with a global distribution. It has a high invasive potential, largely due to its ability to adapt to a wide range of temperatures and salinity levels and to form resistant structures. It thrives in a great variety of freshwater and estuarine habitats, colonizing both natural and artificial substrates, where it causes serious biofouling issues. This species has been accidentally introduced into various regions worldwide, and in this publication, we report its first record in the Río Tercero Mtro. Pistarini Reservoir, Córdoba Province, Argentina. This is where the Embalse Nuclear Power Plant, which uses the reservoir’s waters as coolant, and the Fitz Simon hydroelectric power plant are situated. During monitoring conducted in August and October 2023 in the water intake systems of these facilities, colonies of C. caspia were found at approximately 18 meters in depth. Monitoring its populations is essential to understanding its ecological impact and implementing mitigation measures, as its control presents a challenge due to its high reproductive capacity, tolerance to different environmental conditions, and resistance to certain chemical treatments.
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