Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain)
One of the main problems arising in inland waterbodies is nutrient enrichment that accelerates eutrophication, causing massive cyanobacteria blooms and degrading aquatic ecosystems. This study focused on physical/chemical factors that affect cyanobacteria of 30 reservoirs in the Ebro River basin wit...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/15/14/2538 |
| _version_ | 1797587254922706944 |
|---|---|
| author | Rebeca Pérez-González Xavier Sòria-Perpinyà Juan Soria Maria D. Sendra Eduardo Vicente |
| author_facet | Rebeca Pérez-González Xavier Sòria-Perpinyà Juan Soria Maria D. Sendra Eduardo Vicente |
| author_sort | Rebeca Pérez-González |
| collection | DOAJ |
| description | One of the main problems arising in inland waterbodies is nutrient enrichment that accelerates eutrophication, causing massive cyanobacteria blooms and degrading aquatic ecosystems. This study focused on physical/chemical factors that affect cyanobacteria of 30 reservoirs in the Ebro River basin within the Iberian Peninsula of northeastern Spain. The abundance of cyanobacteria was assessed as total cell number, total biovolume, and the indicator pigment, total phycocyanin (PC). In addition, empirical measurements for PC were compared to PC estimated from remote sensing. Variables assessed for correlation with cyanobacteria abundance included temperature, pH, light availability inferred from Secchi depth, water residence time, total nitrogen, dissolved inorganic nitrogen, total phosphorus, soluble reactive phosphorus, silica, and total phytoplankton biomass as chlorophyll <i>a</i>. These variables were also assessed with a multi-statistical principal component analysis for relationships with cyanobacteria abundance. Cyanobacteria cell number and biovolume were positively correlated with temperature, total nitrogen, total phosphorus, and water residence time, and negatively correlated with silica. High PC concentrations were documented in the reservoirs, and satellite images from remote sensing showed the PC spatial distribution and heterogeneity in the reservoirs. The PCA results show that some variables, such as nitrogen and phosphorus, are closely related to the abundance of cyanobacteria, while other variables such as silica do not show a clear relationship. This study contributes to the knowledge base about inland waterbodies from a physical/chemical perspective, which had not been done before in the Ebro Basin, including the application of analytic tools such as remote sensing. |
| first_indexed | 2024-03-11T00:33:34Z |
| format | Article |
| id | doaj.art-b99da3fb698b4654821dbbea6a3614de |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T00:33:34Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-b99da3fb698b4654821dbbea6a3614de2023-11-18T21:46:46ZengMDPI AGWater2073-44412023-07-011514253810.3390/w15142538Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain)Rebeca Pérez-González0Xavier Sòria-Perpinyà1Juan Soria2Maria D. Sendra3Eduardo Vicente4Cavanilles Institute of Biodiversity and Evolutionary Biology (ICBiBE), University of Valencia, 46980 Paterna, SpainImage Processing Laboratory (IPL), University of Valencia, 46980 Paterna, SpainCavanilles Institute of Biodiversity and Evolutionary Biology (ICBiBE), University of Valencia, 46980 Paterna, SpainCavanilles Institute of Biodiversity and Evolutionary Biology (ICBiBE), University of Valencia, 46980 Paterna, SpainCavanilles Institute of Biodiversity and Evolutionary Biology (ICBiBE), University of Valencia, 46980 Paterna, SpainOne of the main problems arising in inland waterbodies is nutrient enrichment that accelerates eutrophication, causing massive cyanobacteria blooms and degrading aquatic ecosystems. This study focused on physical/chemical factors that affect cyanobacteria of 30 reservoirs in the Ebro River basin within the Iberian Peninsula of northeastern Spain. The abundance of cyanobacteria was assessed as total cell number, total biovolume, and the indicator pigment, total phycocyanin (PC). In addition, empirical measurements for PC were compared to PC estimated from remote sensing. Variables assessed for correlation with cyanobacteria abundance included temperature, pH, light availability inferred from Secchi depth, water residence time, total nitrogen, dissolved inorganic nitrogen, total phosphorus, soluble reactive phosphorus, silica, and total phytoplankton biomass as chlorophyll <i>a</i>. These variables were also assessed with a multi-statistical principal component analysis for relationships with cyanobacteria abundance. Cyanobacteria cell number and biovolume were positively correlated with temperature, total nitrogen, total phosphorus, and water residence time, and negatively correlated with silica. High PC concentrations were documented in the reservoirs, and satellite images from remote sensing showed the PC spatial distribution and heterogeneity in the reservoirs. The PCA results show that some variables, such as nitrogen and phosphorus, are closely related to the abundance of cyanobacteria, while other variables such as silica do not show a clear relationship. This study contributes to the knowledge base about inland waterbodies from a physical/chemical perspective, which had not been done before in the Ebro Basin, including the application of analytic tools such as remote sensing.https://www.mdpi.com/2073-4441/15/14/2538cyanobacterial biovolumeharmful cyanobacteria bloomsphycocyaninremote sensingreservoirs |
| spellingShingle | Rebeca Pérez-González Xavier Sòria-Perpinyà Juan Soria Maria D. Sendra Eduardo Vicente Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) Water cyanobacterial biovolume harmful cyanobacteria blooms phycocyanin remote sensing reservoirs |
| title | Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) |
| title_full | Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) |
| title_fullStr | Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) |
| title_full_unstemmed | Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) |
| title_short | Relationship between Cyanobacterial Abundance and Physicochemical Variables in the Ebro Basin Reservoirs (Spain) |
| title_sort | relationship between cyanobacterial abundance and physicochemical variables in the ebro basin reservoirs spain |
| topic | cyanobacterial biovolume harmful cyanobacteria blooms phycocyanin remote sensing reservoirs |
| url | https://www.mdpi.com/2073-4441/15/14/2538 |
| work_keys_str_mv | AT rebecaperezgonzalez relationshipbetweencyanobacterialabundanceandphysicochemicalvariablesintheebrobasinreservoirsspain AT xaviersoriaperpinya relationshipbetweencyanobacterialabundanceandphysicochemicalvariablesintheebrobasinreservoirsspain AT juansoria relationshipbetweencyanobacterialabundanceandphysicochemicalvariablesintheebrobasinreservoirsspain AT mariadsendra relationshipbetweencyanobacterialabundanceandphysicochemicalvariablesintheebrobasinreservoirsspain AT eduardovicente relationshipbetweencyanobacterialabundanceandphysicochemicalvariablesintheebrobasinreservoirsspain |