101 Works

Lake Peipsi 2015 (Phytoplankton samples)

Marina Haldna, Ave Pent, Kadi Palmik, Kristel Panksep, Olga Tammeorg, Reet Laugaste & Jüri Konoplitski
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

Lake Peipsi 2009 (Phytoplankton samples)

Kristel Panksep, Olga Buhvestova, Ave Pent, Kätlin Blank, Kai Ginter & Reet Laugaste
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

Lake Peipsi 2005 (Phytoplankton samples)

Reet Laugaste, Külli Kangur & Kadi Palmik
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

Lake Peipsi 1992 (Phytoplankton samples)

Reet Laugaste
Methods: Samples were in most cases concentrated by precipitation up to 15 ml. Count was made on striped microscope slides within volume 0,1 ml. Microscopes: MBI-3 (magnification 15x20 and 15x40) and Jenaval (7x40). Macroscopic colonies of Gloeotrichia echinulata were counted visually in 500 ml measuring cylinder.

Lake Peipsi 1993 (Phytoplankton samples)

Reet Laugaste
Methods: Samples were in most cases concentrated by precipitation up to 15 ml. Count was made on striped microscope slides within volume 0,1 ml. Microscopes: MBI-3 (magnification 15x20 and 15x40) and Jenaval (7x40). Macroscopic colonies of Gloeotrichia echinulata were counted visually in 500 ml measuring cylinder.

Lake Peipsi 1980 (Phytoplankton samples)

Reet Laugaste
Method: Up to 1988 the samples were preserved with formaldehyde (not neutralised), and lots of samples were spoiled: sample sediment was flaked, stuck together, or rusty. By this reason, a number of results of countings are not representative.

Lake Peipsi 1970 (Phytoplankton samples)

Tarmo Timm, Maia Pork & Reet Laugaste
Method: Up to 1988 the samples were preserved with formaldehyde (not neutralised), and lots of samples were spoiled: sample sediment was flaked, stuck together, or rusty. By this reason, a number of results of countings are not representative.

Lake Peipsi 2016 (Littoral samples)

Reet Laugaste & Helle Mäemets
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Lake Peipsi 2017 (Littoral samples)

Reet Laugaste & Helle Mäemets
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Species lists of 14 Estonian coastal meadow sites with different management history

Marika Kose, Karin Kaljund & Kaili Kattai
The data were collected during July-August 2015 in locations with coordinates in dataset. The sites have unique names and their management has been evaluated as permanently managed, restored before 2005 and restored after 2005. Their condition is estimated on expert level as good or poor, regarding vegetation composition and height. The data were collected from 20 plots of the size 0,5 x 0,5 m. In the dataset the number marks in how many plots out...

Lake Peipsi 2020 (Phytoplankton samples)

Kätlin Blank, Kadi Palmik-Das, Sepp Margot, Marju Tamm & Kai Piirsoo
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3-10 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

List of medicinal plant species in the semi-natural Miscanthus sinensis grasslands in Nagano and Yamanashi Prefectures, Japan

Indrek Melts
The dataset collected from the typical and the most representative type of semi-natural grasslands in Satoyama landscape in Honshu island, Japan. Twelve grasslands were located on the Kaida Plateau between 1000–1300 m a.s.l. in Nagano Prefecture (approximate geographical coordinate of the study area: 35.931555N, 137.604300E) and six grasslands were located on the north-eastern foot of Mt. Fuji between 1000–1300 m a.s.l. in Yamanashi Prefecture (approximate geographical coordinate of the study area: 35.431819N, 138.812522E). The study sites...

Lake Peipsi 2005 (Littoral samples)

Reet Laugaste & Helle Mäemets
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Lake Peipsi 2012 (Littoral samples)

Reet Laugaste & Helle Mäemets
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Bumble bee foraged pollen analyses in spring time in Southern Estonia shows abundant food sources: dataset

Anna Bontšutšnaja, Reet Karise, Marika Mänd & Guy Smagghe
The database contains the results of DNA metabarcoding (sequences, relative importances) and microscopy pollen count data.

Narva Reservoir 2013 (Littoral samples)

Reet Laugaste & Külli Kangur
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Narva Reservoir 2002 (Littoral samples)

Reet Laugaste
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Narva Reservoir 2001 (Littoral samples)

Arvo Tuvikene & Reet Laugaste
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Narva Reservoir 2015 (Littoral samples)

Reet Laugaste & Jüri Konoplitski
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Supplementary materials to the article \"Medicinal Plants in Semi-Natural Grasslands: Impact of Management\"

Katrin Heinsoo
The supplementary material contains (S1) species accumulation curves of different habitats based on species lists originating from https://dspace.emu.ee/xmlui/handle/10492/6300 and the Estonian Environmental Board database. Lists of Estonian MP species (S2) by each scenario are based on the following literature sources: Estonian Agency of Medicine. Ravimina Määratletud Raviomadustega Ainete ja Taimede Nimekiri; 2020 (access 25.11.2020) (scenario 1); Tammeorg, J.; Kook, O.; Vilbaste, G. Eesti NSV Ravimtaimed, 5th ed.; Valgus: Tallinn, Estonia, 1984 (scenario 2) and Raal,...

Supplementary materials to the article \"Catchment soil characteristics predict organic carbon, nitrogen, and phosphorus levels in temperate lakes\"

Margot Sepp, Toomas Kõiv, Peeter Nõges, Tiina Nõges, Silvia E. Newell & Mark J. McCarthy
The supplementary material contains 6 tables. This study was funded by the Estonian Research Council grants PUTJD954, PRG709, and PRG1167, by the European Regional Development Fund through Estonian University of Life Sciences ASTRA project “Value-chain based bio-economy”, and by the European Union H2020 WIDESPREAD grant 951963 (TREICLAKE). The Estonian Ministry of Environment and the Estonian Environment Agency supported data collection in the national monitoring program.

Lake Peipsi 2002 (Littoral samples)

Reet Laugaste & Helle Mäemets
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Lake Peipsi 2006 (Littoral samples)

Reet Laugaste
Phytoplankton samples were picked with bottle from among reed stands or from above thick beds of submerged plants from the depth 20-30 cm, were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density...

Lake Peipsi 2000 (Phytoplankton samples)

Reet Laugaste & Külli Kangur
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

Lake Peipsi 1999 (Phytoplankton samples)

Reet Laugaste
Method: Phytoplankton samples were preserved in Lugol’s (acidified iodine) solution and counted under an inverted microscope (Utermöhl, 1958). 3 ml of preserved sample was settled overnight and counted in random fields or transects. Biovolumes of algal cells, colonies and/or filaments were calculated using assigned geometric shapes dimensions, and converted to biomass assuming the specific density of 1 g cm-3 in accordance with Edler (1979). Approved by CEN on 14 July 2006 “Water quality - Guidance...

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