Crustacean zooplankton communities in Lake General Carrera (46°S) and their possible association with optical properties

Ríos-Escalante, Patricio De los; Quinan, Esteban; Acevedo, Patricio

doi:10.1163/15685403-00003182

Cited by 10 publications

(15 citation statements)

References 13 publications

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“…Both groups were markedly different probably due to geological and associated vegetation [1][2]4]. Nevertheless, the marked differences for Bulgarian lakes would agree with the marked heterogeneity of the environments of these sites [1][2], which would be denoted using remote sensing techniques such as those observed for Patagonian lakes with marked environmental heterogeneity like that observed for Tagua Tagua and General Carrera lakes [6][7][8].…”

Section: Discussionmentioning

confidence: 80%

“…The environmental heterogeneity for Patagonian lakes has been described with details mainly of trophic status and associated basins [9][10][11], but recently we studied some optical properties associated with ecological implications due to the presence of associated glaciers with consequent changes in water coloration properties, light absorption, and changes in associated trophic webs [12][13][14], and these results would be associated with optical properties obtained from satellite images [6][7][8]. This scenario would have seen similar results if it had applied similar techniques for Bulgarian lakes that are characterized by their marked environmental heterogeneity, because these lakes have a mixture of volcanic and glacial origins and surrounding vegetation with Pinus mugus shrubs, associated with mountains and Fagus forests [1][2].…”

Section: Discussionmentioning

confidence: 99%

“…Reflectance was applied as principal correspondence analysis for obtaining the grouping for sampled sites. This statistical analysis was applied using Analyze-it software based on the methodology used for Patagonian lakes [6][7][8].…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Spectral Properties Observations: a First Comparison of Bulgarian and Chilean Mountain Lakes

Escalante¹,

Acevedo²,

Pandourski³

2016

Pol. J. Environ. Stud.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Spectral Properties Observations: a First Comparison of Bulgarian and Chilean Mountain Lakes

Escalante¹,

Acevedo²,

Pandourski³

2016

Pol. J. Environ. Stud.

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“…Reflectance data analysis was applied as a principal correspondence analysis to obtain the grouping for sampled sites. This statistical analysis was applied using the software R [16] and the Package HSAUR [17], based on methodology used for Patagonian lakes [10][11][12].…”

Section: Methodsmentioning

confidence: 99%

“…and changes in associated trophic webs [7][8][9], and these results would be associated with optical properties obtained from satellite images [10][11][12].…”

mentioning

confidence: 90%

Satellite Spectral Property Observations in Chilean Lakes

Escalante¹,

Castro²,

Esse³

et al. 2017

Pol. J. Environ. Stud.

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Sources of dissolved silica to the fjords of northern Patagonia (44–48°S): the importance of volcanic ash soil distribution and weathering

Vandekerkhove

Bertrand

Reid

et al. 2015

Earth Surf Processes Landf

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Dissolved silica (DSi) plays an important biogeochemical role in the fjords of northern Chilean Patagonia (44-48°S), where it drives high biogenic productivity and promotes carbon burial. It is generally believed that the DSi riverine input to lakes and coastal environments is controlled by a combination of factors including lithology, climate, topography, vegetation, and meltwater input. In northern Chilean Patagonia several authors have proposed that the postglacial volcanic ash soils (andosols) may play a significant role in the high supply of DSi to the regional fjords. To assess the influence of andosols on DSi concentrations in north Patagonian rivers, we mapped andosol thickness and compared our results with river chemistry. The mineralogical and geochemical composition of three representative andosol profiles was also examined to evaluate the efficiency of weathering processes. The andosol thickness map clearly demonstrates that volcanic ash was predominantly deposited on the eastern side of the regional volcanoes, reflecting the influence of the prevailing westerly winds on the distribution of pyroclastic material. Mineralogical and geochemical results show that the andosol parent material has the typical andesitic basaltic signature of the regional volcanoes, i.e. high amounts of amorphous material, plagioclase, K-feldspar, and pyroxene. Down-profile variations in soil mineralogy and geochemistry indicate increased leaching of silica with depth, resulting from weathering of the volcanic parent material. For the five studied watersheds, a highly positive correlation (R 2 =0.98) was found between average andosol thickness and DSi concentrations, suggesting that andosol thickness is the main parameter affecting DSi concentrations in north Patagonian river systems. On seasonal timescales, increased precipitation (winter) and glacial meltwater (summer) input can significantly reduce DSi concentrations. We argue that the weathering of andosols constitutes the most important source of DSi to the lakes and fjords of northern Chilean Patagonia, explaining the particularly high regional rates of biogenic silica production.

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Crustacean zooplankton communities in Lake General Carrera (46°S) and their possible association with optical properties

Cited by 10 publications

References 13 publications

Spectral Properties Observations: a First Comparison of Bulgarian and Chilean Mountain Lakes

Spectral Properties Observations: a First Comparison of Bulgarian and Chilean Mountain Lakes

Satellite Spectral Property Observations in Chilean Lakes

Sources of dissolved silica to the fjords of northern Patagonia (44–48°S): the importance of volcanic ash soil distribution and weathering

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