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  • Articles  (15)
  • phytoplankton  (15)
  • Springer  (15)
  • Copernicus
  • 1995-1999  (15)
  • 1945-1949
  • Geography  (15)
Collection
  • Articles  (15)
Source
Keywords
Publisher
  • Springer  (15)
  • Copernicus
Years
  • 1995-1999  (15)
  • 1945-1949
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Phytoplankton structure, composition and production in saline water-bodies in the Lower Amu Dar'ya (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 217-231 
    Details
    ISSN: 1573-8590
    Keywords: saline water-bodies ; phytoplankton ; biomass ; production ; chlorophyll ; P/B ratio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Phytoplankton and its production in water-bodies of the lower Amu Dar'yawere investigated in 1984–1989. The structure and functional nature ofthe phytoplankton in the water-bodies studied were analogous to those ofthe littoral zone of eutrophic lakes, considering hydrological andhydrochemical conditions. The very high average annual P/B ratios(453–582) are considered as regional features, namely high lightintensity and prolonged light period, the salinity usual for salinewaters under anthropogenic influence, the frequent and discrete incomeof nutrients in drainage water and from sediments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009047219000
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  • 2
    Electronic Resource
    Electronic Resource
    Seasonal fluctuations in the plankton community in a hypersaline temporary lake (Honda, southern Spain) (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 353-371 
    Details
    ISSN: 1573-8590
    Keywords: hypersaline lakes ; multivariate methods ; phytoplankton ; seasonality ; shallow lakes ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Honda saline lake is located in an endorheic basin in the south of Spain. The lake is very shallow, with frequent seasonal drought and a high degree of unpredictability. It was sampled monthly during a relatively dry year (1994–1995, 5 months permanence). To establish a relationship between environmental variables (temperature, depth, salinity and conductivity), variables related to biological activity (organic matter, total solids suspension, and pH) and the planktonic community in the sampled months, various uni- and multivariate statistical methods were carried out. Dunaliella salina, D. viridis, and ciliates sp. 2 is the principal species group used to average out the dissimilarity between the samples. Multivariate analysis showed that salinity (as TDS), conductivity and pH made major and significant contributions to the explanation of the variance in the sample data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009057913154
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  • 3
    Electronic Resource
    Electronic Resource
    Seasonal fluctuations in the plankton community in a hypersaline temporary lake (Honda, southern Spain) (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 353-371 
    Details
    ISSN: 1573-8590
    Keywords: hypersaline lakes ; multivariate methods ; phytoplankton ; seasonality ; shallow lakes ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Honda saline lake is located in an endorheic basin in the south of Spain. The lake is very shallow, with frequent seasonal drought and a high degree of unpredictability. It was sampled monthly during a relatively dry year (1994–1995, 5 months permanence). To establish a relationship between environmental variables (temperature, depth, salinity and conductivity), variables related to biological activity (organic matter, total solids suspension, and pH) and the planktonic community in the sampled months, various uni-and miltivariate statistical methods were carried out.Dunaliella salina, D. viridis, and ciliates sp. 2 is the principal species group used to average out the dissimilarity between the samples. Muttivariate analysis showed that salinity (as TDS), conductivity and pH made major and significant contributions to the explanation of the variance in the sample data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02447916
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  • 4
    Electronic Resource
    Electronic Resource
    Artemia parthenogenetica in Lake Hayward, Western Australia. II. Feeding biology in a shallow, seasonally stratified, hypersaline lake (1998)
    Springer
    International journal of salt lake research 7 (1998), S. 13-24 
    Details
    ISSN: 1573-8590
    Keywords: Artemia ; bacteria ; benthic microbial communities ; ecology ; feeding biology ; grazing ; phytoplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Primary production in Lake Hayward, Western Australia, is dominated by benthic microbial communities, with limited planktonic primary production. This study investigated the question of how Artemia, commonly regarded as simple, obligate, non-selective filter feeders, were able to survive in this system. Bacteria (heterotrophic and autotrophic, filamentous and unicellular) were the major components in the diet of the Artemia in Lake Hayward. These bacteria were derived from bacterial aggregates in the water column and also from benthic mat material (both still attached to the substrate and from pieces floating in the water column). Benthic diatoms were a substantial dietary component of animals living in the unstratified shallow regions. Photosynthetic eukaryotic nanoplankton comprised a minor component of the diet of this Artemia population. Gut contents of a large number of animals and the results of a simple laboratory test indicated that these animals utilise substrate-bound food resources. The results of the present study raises the question of the ecological significance of surface grazing by brine shrimps in other shallow, benthos dominated saline systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009084902677
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  • 5
    Electronic Resource
    Electronic Resource
    The phytoplankton of some saline lakes in Central Asia (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 5-16 
    Details
    ISSN: 1573-8590
    Keywords: Aral Sea ; Central Asia ; EC (electrical conductivity) ; Lake Balkhash ; Lake Kamyslybas ; phytoplankton ; saline lake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The Aral Sea, Lake Balkhash, and Lake Kamyslybas are closed lakes inCentral Asia. They range from oligosaline to metasaline. The salinity of theAral Sea has increased by more than 30 g L−1 sincewidespread irrigation began in its catchment area. Few studies of thephytoplankton have been conducted on these lakes since extensive irrigationstarted. The investigation reported here compares the flora of phytoplanktonin these saline lakes. In the Small Aral Sea, phytoplankton densitygradually decreased with increasing electrical conductivity (EC) (∼salinity), but there was no such relation in Lake Balkhash and LakeKamyslybas. In the Aral Sea, Dinophyceae and Bacillariophyceae werefrequently observed in most areas of high EC value, and Cyanophyceae weremost conspicuous in the area of medium and lower EC values. In LakeBalkhash, Cyanophyceae were most conspicuous, but Chlorophyceae were alsonoticeable. Most Cyanophyceae in Aral Sea formed filaments with heterocysts.The distinct characteristic of the phytoplankton of the Lake Balkhash wasthat all dominant species form colonies covered with a gelatinous film.Siliceousplankton diversity gradually decreased with increasing EC values inthe Aral Sea and Lake Balkhash.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009058710369
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  • 6
    Electronic Resource
    Electronic Resource
    Phytoplankton structure, composition and production in saline water-bodies in the Lower Amu Dar'ya (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 217-231 
    Details
    ISSN: 1573-8590
    Keywords: saline water-bodies ; phytoplankton ; biomass ; production ; chlorophyll ; P/B ratio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Phytoplankton and its production in water-bodies of the lower Amu Dar'ya were investigated in 1984–1989. The structure and functional nature of the phytoplankton in the water-bodies studied were analogous to those of the littoral zone of eutrophic lakes, considering hydrological and hydrochemical conditions. The very high average annual P/B ratios (453–582) are considered as regional features, namely high light intensity and prolonged light period, the salinity usual for saline waters under anthropogenic influence, the frequent and discrete income of nutrients in drainage water and from sediments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02449926
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  • 7
    Electronic Resource
    Electronic Resource
    Characteristics of coastal phytoplankton near Cape Tastubec (northern Aral Sea), September 1993 (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 7-18 
    Details
    ISSN: 1573-8590
    Keywords: coastal waters ; production ; decomposition ; phytoplankton ; Aral Sea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The species composition, population density, biomass and main functional characteristics of the phytoplankton community near Cape Tastubec, northern Aral Sea in September 1993 were investigated. The characteristics investigated were daily primary production, decomposition, and photosynthetic intensity. The data indicate that certain changes in the structure and function of the phytoplankton have recently taken place.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442133
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  • 8
    Electronic Resource
    Electronic Resource
    Characteristics of coastal phytoplankton near Cape Tastubec (northern Aral Sea), September 1993 (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 7-18 
    Details
    ISSN: 1573-8590
    Keywords: coastal waters ; production ; decomposition ; phytoplankton ; Aral Sea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The species composition, population density, biomass and main functional characteristics of the phytoplankton community near Cape Tastubec, northern Aral Sea in September 1993 were investigated. The characteristics investigated were daily primary production, decomposition, and photosynthetic intensity. The data indicate that certain changes in the structure and function of the phytoplankton have recently taken place.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009063325748
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  • 9
    Electronic Resource
    Electronic Resource
    Lake Shira, a Siberian salt lake: ecosystem structure and function. 1. Major physico-chemical and biological features (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 211-232 
    Details
    ISSN: 1573-8590
    Keywords: bacterioplankton ; blue-green algae ; meromictic salt lake ; phytoplankton ; vertical structure ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The specific composition, vertical distribution and daily migration of plankton in a meromictic salt lake, Lake Shira, have been investigated. The main structural components of the ecosystem are bacteria, algae and crustaceans. Since the late 1970s, blue-green algae are reported as dominant. Nowadays the phytoplankton is dominated by Lyngbya contorta, Microcystis ichtyoblabe (Cyanophyta), Cyclotella tuberculata (Bacillariophyta) and Dictyosphaerium tetrachotomum (Chlorophyta). The zooplankton of Lake Shira comprises Arctodiaptomus salinus (Copepoda), Brachionus plicatilis and Hexarthra oxiuris (Rotatoria). Investigation revealed a stratified vertical distribution of all dominant species except Cyclotella with a maximum at a depth of 12--15 m during the summer growth period. Zooplanktons differ in the pattern of distribution and daily migration, but most zooplankton tend to concentrate near the surface. The possible reasons for the vertical distribution of the plankton are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009030120324
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  • 10
    Electronic Resource
    Electronic Resource
    Chlorophylla of size-fractionated phytoplankton at a temporary hypersaline lake (1996)
    Springer
    International journal of salt lake research 5 (1996), S. 253-260 
    Details
    ISSN: 1573-8590
    Keywords: saline lakes ; chlorophyll ; size-fractions ; phytoplankton ; shallow lakes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The size-fractionated distribution of chlorophylla was studied in a temporary hypersaline lake situated in the south of Spain during an annual hydrological cycle characterized by low levels of rainfall. The contribution of each size class to the total chlorophylla concentration indicates that ultraplankton (size class 〈5μm) was the most important fraction of phytoplankton biomass during this year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01997140
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  • 11
    Electronic Resource
    Electronic Resource
    The phytoplankton of some saline lakes in Central Asia (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 5-16 
    Details
    ISSN: 1573-8590
    Keywords: Aral Sea ; Central Asia ; EC (electrical conductivity) ; Lake Balkhash ; Lake Kamyslybas ; phytoplankton ; saline lake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The Aral Sea, Lake Balkhash, and Lake Kamyslybas are closed lakes in Central Asia. They range from oligosaline to metasaline. The salinity of the Aral Sea has increased by more than 30 g L−1 since widespread irrigation began in its catchment area. Few studies of the phytoplankton have been conducted on these lakes since extensive irrigation started. The investigation reported here compares the flora of phytoplankton in these saline lakes. In the Small Aral Sea, phytoplankton density gradually decreased with increasing electrical conductivity (EC) (∼ salinity), but there was no such relation in Lake Balkhash and Lake Kamyslybas. In the Aral Sea, Dinophyceae and Bacillariophyceae were frequently observed in most areas of high EC value, and Cyanophyceae were most conspicuous in the area of medium and lower EC values. In Lake Balkhash, Cyanophyceae were most conspicuous, but Chlorophyceae were also noticeable. Most Cyanophyceae in Aral Sea formed filaments with heterocysts. The distinct characteristic of the phytoplankton of the Lake Balkhash was that all dominant species form colonies covered with a gelatinous film. Siliceousplankton diversity gradually decreased with increasing EC values in the Aral Sea and Lake Balkhash.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441865
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  • 12
    Electronic Resource
    Electronic Resource
    The biota of Romanian saline lakes on rock salt bodies: A review (1998)
    Springer
    International journal of salt lake research 7 (1998), S. 45-80 
    Details
    ISSN: 1573-8590
    Keywords: aquatic flora and fauna ; circum-lacustrine vegetation ; cormophytes ; microphytobenthos ; pelogenous/non-pelogenous lakes ; phytoplankton ; Romania ; saline lakes ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract An inventory of the aquatic and circum-lacustrine flora and aquatic fauna of 23 karst- and anthroposaline lakes formed on Miocene rock salt bodies in Romania was undertaken. Simultaneous field determinations of water and sediment pH, total dissolved solids, Secchi transparency and lake maximum depth were also made. Environmental conditions for phytoplankton, microphytobenthos, macrophyte and cormophyte species were defined. Relations between the numbers of plankton, microbenthos, macrophyte and cormophyte species differentiated pelogenous (usually, therapeutic) and non-pelogenous lakes. High densities and occurrence frequencies characterized the most representative species. For three of these species, Amphora veneta, Artemia sp. and Potamogeton pectinatus, ecological conditions were noted. In the circum-lacustrine vegetation, glycophytes were more important than halophytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009025228069
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  • 13
    Electronic Resource
    Electronic Resource
    Artemia parthenogenetica in Lake Hayward, Western Australia. II. Feeding biology in a shallow, seasonally stratified, hypersaline lake (1998)
    Springer
    International journal of salt lake research 7 (1998), S. 13-24 
    Details
    ISSN: 1573-8590
    Keywords: Artemia ; bacteria ; benthic microbial communities ; ecology ; feeding biology ; grazing ; phytoplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Primary production in Lake Hayward, Western Australia, is dominated by benthic microbial communities, with limited planktonic primary production. This study investigated the question of howArtemia, commonly regarded as simple, obligate, non-selective filter feeders, were able to survive in this system. Bacteria (heterotrophic and autotrophic, filamentous and unicellular) were the major components in the diet of theArtemia in Lake Hayward. These bacteria were derived from bacterial aggregates in the water column and also from benthic mat material (both still attached to the substrate and from pieces floating in the water column). Benthic diatoms were a substantial dietary component of animals living in the unstratified shallow regions. Photosynthetic eukaryotic nanoplankton comprised a minor component of the diet of thisArtemia population. Gut contents of a large number of animals and the results of a simple laboratory test indicated that these animals utilise substrate-bound food resources. The results of the present study raises the question of the ecological significance of surface grazing by brine shrimps in other shallow, benthos dominated saline systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02449921
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  • 14
    Electronic Resource
    Electronic Resource
    The biota of Romanian saline lakes on rock salt bodies: A review (1998)
    Springer
    International journal of salt lake research 7 (1998), S. 45-80 
    Details
    ISSN: 1573-8590
    Keywords: aquatic flora and fauna ; circum-lacustrine vegetation ; cormophytes ; microphytobenthos ; pelogenous/non-pelogenous lakes ; phytoplankton ; Romania ; saline lakes ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract An inventory of the aquatic and circum-lacustrine flora and aquatic fauna of 23 karst- and anthroposaline lakes formed on Miocene rock salt bodies in Romania was undertaken. Simultaneous field determinations of water and sediment pH, total dissolved solids, Secchi transparency and lake maximum depth were also made. Environmental conditions for phytoplankton, microphytobenthos, macrophyte and cormophyte species were defined. Relations between the numbers of plankton, microbenthos, macrophyte and cormophyte species differentiated pelogenous (usually, therapeutic) and non-pelogenous lakes. High densities and occurrence frequencies characterized the most representative species. For three of these species,Amphora veneta, Artemia sp. andPotamogeton pectinatus, ecological conditions were noted. In the circum-lacustrine vegetation, glycophytes were more important than halophytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02449924
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  • 15
    Electronic Resource
    Electronic Resource
    Lake Shira, a Siberian salt lake: ecosystem structure and function (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 211-232 
    Details
    ISSN: 1573-8590
    Keywords: bacterioplankton ; blue-green algae ; meromictic salt lake ; phytoplankton ; vertical structure ; zooplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract The specific composition, vertical distribution and daily migration of plankton in a meromictic salt lake, Lake Shira, have been investigated. The main structural components of the ecosystem are bacteria, algae and crustaceans. Since the late 1970s, blue-green algae are reported as dominant. Nowadays the phytoplankton is dominated byLyngbya contorta, Microcystis ichtyoblabe (Cyanophyta),Cyclotella tuberculata (Bacillariophyta) andDictyosphaerium tetrachotomum (Chlorophyta). The zooplankton of Lake Shira comprisesArctodiaptomus salinus (Copepoda),Brachionus plicatilis andHexarthra oxiuris (Rotatoria). Investigation revealed a stratified vertical distribution of all dominant species exceptCyclotella with a maximum at a depth of 12–15 m during the summer growth period. Zooplanktons differ in the pattern of distribution and daily migration, but most zooplankton tend to concentrate near the surface. The possible reasons for the vertical distribution of the plankton are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02449932
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