Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile
ABSTRACT The Puelo and Petrohué rivers were surveyed between April 2016 and February 2017 to assess the presence and seasonal abundance of Didymosphenia geminata in the wild aquatic systems of these two important rivers in southern Chile. Didymo was reported in the Puelo River in 2012, while it was...
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| Lenguaje: | English |
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Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
2019
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oai:scielo:S0718-560X20190004006652019-09-24Comparative analysis of two rivers infected with Didymosphenia geminata in southern ChileBravo,SandraWhelan,KenSambra,KarlaSilva,María T.Ponce,NikeCampos,Patricio Didymosphenia geminata seasonal abundance phosphorous availability aquatic invasions Puelo River Petrohué River southern Chile ABSTRACT The Puelo and Petrohué rivers were surveyed between April 2016 and February 2017 to assess the presence and seasonal abundance of Didymosphenia geminata in the wild aquatic systems of these two important rivers in southern Chile. Didymo was reported in the Puelo River in 2012, while it was declared absent from the Petrohué River before this study commenced in the fall of 2016. Results showed that cells of D. geminata were recorded in both rivers, in the Phytobenthos as well as in the water column. However, the classical mucilage which characterizes this plague was only recorded in one of the sampled rivers (Puelo). The mucilage was not recorded in any of the sections sampled in the Petrohué River, which was attributed to the high concentration of phosphorous present in the system. The concentration of phosphorous recorded throughout the study in the Puelo River was low. However, differences in the recorded presence or absence of D. geminata between sampling sites on the Petrohué River was mainly attributable to the availability of incident sunlight. This study records for the first time the presence of D. geminata in the Petrohué River.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.47 n.4 20192019-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000400665en10.3856/vol47-issue4-fulltext-8 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Didymosphenia geminata seasonal abundance phosphorous availability aquatic invasions Puelo River Petrohué River southern Chile |
| spellingShingle |
Didymosphenia geminata seasonal abundance phosphorous availability aquatic invasions Puelo River Petrohué River southern Chile Bravo,Sandra Whelan,Ken Sambra,Karla Silva,María T. Ponce,Nike Campos,Patricio Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| description |
ABSTRACT The Puelo and Petrohué rivers were surveyed between April 2016 and February 2017 to assess the presence and seasonal abundance of Didymosphenia geminata in the wild aquatic systems of these two important rivers in southern Chile. Didymo was reported in the Puelo River in 2012, while it was declared absent from the Petrohué River before this study commenced in the fall of 2016. Results showed that cells of D. geminata were recorded in both rivers, in the Phytobenthos as well as in the water column. However, the classical mucilage which characterizes this plague was only recorded in one of the sampled rivers (Puelo). The mucilage was not recorded in any of the sections sampled in the Petrohué River, which was attributed to the high concentration of phosphorous present in the system. The concentration of phosphorous recorded throughout the study in the Puelo River was low. However, differences in the recorded presence or absence of D. geminata between sampling sites on the Petrohué River was mainly attributable to the availability of incident sunlight. This study records for the first time the presence of D. geminata in the Petrohué River. |
| author |
Bravo,Sandra Whelan,Ken Sambra,Karla Silva,María T. Ponce,Nike Campos,Patricio |
| author_facet |
Bravo,Sandra Whelan,Ken Sambra,Karla Silva,María T. Ponce,Nike Campos,Patricio |
| author_sort |
Bravo,Sandra |
| title |
Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| title_short |
Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| title_full |
Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| title_fullStr |
Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| title_full_unstemmed |
Comparative analysis of two rivers infected with Didymosphenia geminata in southern Chile |
| title_sort |
comparative analysis of two rivers infected with didymosphenia geminata in southern chile |
| publisher |
Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar |
| publishDate |
2019 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2019000400665 |
| work_keys_str_mv |
AT bravosandra comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile AT whelanken comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile AT sambrakarla comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile AT silvamariat comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile AT poncenike comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile AT campospatricio comparativeanalysisoftworiversinfectedwithdidymospheniageminatainsouthernchile |
| _version_ |
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