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View article: Changes in the Size Distribution of a Freshwater Fish After Lake Outlet Dam Removal: A Pilot Study
Changes in the Size Distribution of a Freshwater Fish After Lake Outlet Dam Removal: A Pilot Study Open
The size structure of populations is crucial for predator–prey dynamics and ecosystem function. Anthropogenic pressures such as habitat alteration may affect the demography of many species. We investigated the size structure of European pe…
View article: Subfossil Cladocera as indicators of pH, trophic state and conductivity: Separate and combined effects in hemi boreal freshwater lakes
Subfossil Cladocera as indicators of pH, trophic state and conductivity: Separate and combined effects in hemi boreal freshwater lakes Open
Identifying lake reference conditions is a crucial task for successful lake restoration. A common method is the paleolimnological approach. However, lakes can be influenced by multiple stressors over time, making it necessary to consider p…
View article: Lake food web structure in Teici Nature reserve, Latvia: fish presence shapes functioning of pristine bog lake food webs
Lake food web structure in Teici Nature reserve, Latvia: fish presence shapes functioning of pristine bog lake food webs Open
Studies on the effects of fish presence on lake ecosystems are widespread but only a few have been conducted in pristine aquatic environments. We employed Ecopath model for assessing food web structure in two fish-inhabited and one fishles…
View article: Functional ecological metrics of good ecological quality – Needs of managers and data from pristine lakes
Functional ecological metrics of good ecological quality – Needs of managers and data from pristine lakes Open
Anthropogenic eutrophication and overfishing of top predators have put our lakes in danger, and coping mechanisms like The European Water Framework Directive have been put in place to mitigate their effects. However, the discussion on the …
View article: The comparison of the feeding of European perch Perca fluviatilis L. larvae in littoral and pelagic habitats of northern temperate lakes
The comparison of the feeding of European perch Perca fluviatilis L. larvae in littoral and pelagic habitats of northern temperate lakes Open
We studied the feeding of European perch Perca fluviatilis L. larvae in littoral and pelagic habitats of four different lakes â one Latvian (Auciema) and three Estonian (Akste, Kaiavere, and Prossa). Altogether, 162 perch larvae (81 from…
View article: Prey selection and growth in 0+ Eurasian perch <i>Perca fluviatilis</i> L. in littoral zones of seven temperate lakes
Prey selection and growth in 0+ Eurasian perch <i>Perca fluviatilis</i> L. in littoral zones of seven temperate lakes Open
We studied the relationships between the planktonic food base and feeding patterns of juvenile mid‐summer/early autumn Eurasian perch Perca fluviatilis L., a common predatory freshwater fish in large parts of Europe and Asia. The feeding o…
View article: Spatio-Temporal Variability of Phytoplankton Primary Production in Baltic Lakes Using Sentinel-3 OLCI Data
Spatio-Temporal Variability of Phytoplankton Primary Production in Baltic Lakes Using Sentinel-3 OLCI Data Open
Phytoplankton primary production (PP) in lakes play an important role in the global carbon cycle. However, monitoring the PP in lakes with traditional complicated and costly in situ sampling methods are impossible due to the large number o…
View article: Validation and Comparison of Water Quality Products in Baltic Lakes Using Sentinel-2 MSI and Sentinel-3 OLCI Data
Validation and Comparison of Water Quality Products in Baltic Lakes Using Sentinel-2 MSI and Sentinel-3 OLCI Data Open
Inland waters, including lakes, are one of the key points of the carbon cycle. Using remote sensing data in lake monitoring has advantages in both temporal and spatial coverage over traditional in-situ methods that are time consuming and e…
View article: Comparison of Lake Optical Water Types Derived from Sentinel-2 and Sentinel-3
Comparison of Lake Optical Water Types Derived from Sentinel-2 and Sentinel-3 Open
Inland waters play a critical role in our drinking water supply. Additionally, they are important providers of food and recreation possibilities. Inland waters are known to be optically complex and more diverse than marine or ocean waters.…
View article: Behavior of trap-and-transported Atlantic salmon spawners of hatchery origin in the Daugava River system (Latvia)
Behavior of trap-and-transported Atlantic salmon spawners of hatchery origin in the Daugava River system (Latvia) Open
Where migrating fish have to pass multiple dams, very high passage performance is required at the series of obstacles to avoid accumulated negative effects of multiple dam passage. In some rivers, migrating fish are trapped, transported pa…
View article: Genetic diversity of a Daugava basin brown trout (<i>Salmo trutta</i>) brood stock
Genetic diversity of a Daugava basin brown trout (<i>Salmo trutta</i>) brood stock Open
Genetics play an increasingly important role in the conservation of threatened fish populations. We have examined twelve microsatellite markers to determine the genetic diversity of a brood stock of brown trout from the Latvian Daugava riv…