Preface: Recent advances in tropical lake research

Ramírez, Alonso; Caballero, Margarita; Vázquez, Gabriela; Colón-Gaud, Checo

doi:10.1007/s10750-020-04443-3

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…The progress of tropical limnology lags behind temperate limnology Lewis 2000), as limnology has traditionally been focused on temperate regions (Fadum and Hall 2020; Santoso and Toruan 2020). Despite the economic, social, and cultural importance of lakes, the limited knowledge of tropical limnology propels this field to develop as the primary research interest worldwide (Gunkel 2000) and advances more investigation in tropical lakes (Ramírez et al 2020;Santoso and Toruan 2020). The importance of inland water fisheries in developing countries, particularly in Africa, has increased the number of research programs in the tropics (Fadum and Hall 2020).…”

Section: Introductionmentioning

confidence: 99%

Limnology of Lake Wood: an Ancestral Lake of the Subanen Tribe

Baludo¹,

Papa²,

Magbanua³

2021

Philipp J Sci

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Relatively limited information exists on Lake Wood’s limnology and ecology, an ancestral lake of the Subanens. Here, we provide a limnological characterization of the lake – exploring its physical, chemical, and biological features. The data on lake morphometry were gathered using an echosounder; lower depth water samples were collected using a Niskin water sampler for physicochemical analyses while surface water samples were collected at five sampling sites for phosphate (PO4) analysis; and zooplankton samples were collected at several depths through vertical towing in March–April 2019. Lake Wood, located at 320 m above sea level, has an extensive surface area covering 7.38 km2 with a maximum depth of 85 m. Lake water comes from rainfall, small rivers, and groundwater and empties into the Dumanquilas Bay via its only outlet – the Biswangan River. Land use of the lake is predominantly cultivated land. Moreover, based on the trophic state index (TSI), the lake’s current trophic status is eutrophic. During the study periods, thermocline and oxycline formed at 15 m below the surface of the lake. We recorded three cladocerans (Ceriodaphnia cornuta, Diaphanosoma cf.sarsi, and Moina micrura) and one copepod species (Thermocyclops crassus) in the lake, all of which are common limnetic species found in the Philippines. Based on our findings, we recommend more efforts to manage and rehabilitate the lake to control and manage eutrophication’s negative impacts. Finally, our study contributes to understanding lakes in Mindanao that are less represented in Philippine freshwater research.

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Section: Introductionmentioning

confidence: 99%

Limnology of Lake Wood: an Ancestral Lake of the Subanen Tribe

Baludo¹,

Papa²,

Magbanua³

2021

Philipp J Sci

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“…This is, in part, due to the differences in abundance of lakes at temperate compared to tropical latitudes (Verpoorter et al 2014) and also the legacy of a temperate lake focus in the field of limnology (Kilham and Kilham 1990). However, this discrepancy is improving as tropical limnology continues to advance (Ramírez et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…However, this discrepancy is improving as tropical limnology continues to advance (Ramírez et al 2020).…”

Section: Introductionmentioning

confidence: 99%

The interaction of physical structure and nutrient loading drives ecosystem change in a large tropical lake over 40 years

Fadum

Hall

2020

Preprint

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Lakes across the world are experiencing novel trophic states, declining water quality, and altered biogeochemical cycling due to the synergistic impacts of global change and local anthropogenic stressors. In the tropics these changes can be difficult to assess due to a lack of continuous monitoring or documented legacy conditions to serve as a reference for the contemporary lake. Over the last forty years, Lake Yojoa, located in west central Honduras, has shifted from an oligotrophic to mesotrophic ecosystem as evidenced by a loss of water clarity. To assess the changes that have occurred in Lake Yojoa as well as putative drivers for those changes, we compared secchi depth, dissolved inorganic nitrogen, and total phosphorus concentrations between 1979-1983 and today (2018-2020). While we found little change in total phosphorus between legacy and contemporary data, we found concurrent changes to seasonal trends in secchi depth and dissolved inorganic nitrogen (DIN). Seasonal peaks in DIN coincident with mixus suggest that accumulation of ammonium in the hypolimnion during stratification, and release to the epilimnion with mixus maintains algal productivity in what was previously a nutrient-limited, clear water phase, driving a change in the overall trophic state of Lake Yojoa. This impact of seasonal dynamics on the trophic state of the lake illustrates a key distinction in how physical structure and nutrients interact differently in tropical and temperate lake ecosystems and highlights the importance of warm anoxic hypolimnions to the biogeochemistry that governs the trophic state of tropical lake ecosystems.

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“…Although recent studies investigated climate impacts on reservoirs (e.g. Zhang et al, 2015;Lewis Jr. et al, 2019), available information for lentic ecosystems in the tropics is still limited (Ramírez et al, 2020 (Zarfl et al, 2014), understanding the mechanisms that govern reservoir response to climate change is becoming increasingly urgent.…”

Section: Introductionmentioning

confidence: 99%

Synergistic interaction among reservoirs along a cascade system and their response to the ongoing anthropogenic and climatic pressures: evidence from deterministic hydrodynamic-biogeochemical modelling

Soares¹

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Preface: Recent advances in tropical lake research

Cited by 8 publications

References 5 publications

Limnology of Lake Wood: an Ancestral Lake of the Subanen Tribe

Limnology of Lake Wood: an Ancestral Lake of the Subanen Tribe

The interaction of physical structure and nutrient loading drives ecosystem change in a large tropical lake over 40 years

Synergistic interaction among reservoirs along a cascade system and their response to the ongoing anthropogenic and climatic pressures: evidence from deterministic hydrodynamic-biogeochemical modelling

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