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  • 1
    Digitale Medien
    Digitale Medien
    The genus Polyarthra in Lake Peipsi (1995)
    Springer
    Hydrobiologia 313-314 (1995), S. 351-357 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Polyarthra ; morphometry ; seasonal development ; bisexual periods ; life cycles
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract In Lake Peipsi (Estonia) Polyarthra species often dominate the rotifer community, and are represented by 6 species: Polyarthra dolichoptera Idelson, P. longiremis Carlin, P. luminosa Kutikova, P. major Burckhardt, P. remata Skorikov, P. vulgaris Carlin. The highest diversity occurs in August–September, with P. remata and P. luminosa most abundant. Morphometric data including measurements of body, fins and various types of eggs are given. The seasonal development of the different species and their life cycles are considered.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00025969
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 2
    Digitale Medien
    Digitale Medien
    Taxonomic composition of rotifers in Lake Peipsi (1996)
    Springer
    Hydrobiologia 338 (1996), S. 125-132 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Rotifera ; Monogononta ; taxonomic composition ; eutrophic lake
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract 161 rotifer taxa 46 of which are new records for Estonia were identified in the north-western part of Lake Peipsi. The greatest number of taxa occurred in August (93), followed by September (79). In all, 19 families (Monogononta) are represented with 41 genera. The dominant families are Brachionidae (32 taxa) and Synchaetidae (16). The species of Anuraeopsis, Conochilus, Kellicottia, Keratella, Notholca, Polyarthra and Synchaeta are dominating. The taxonomic composition is analysed in the ecological aspect. Some species of zoogeographic interest, including a supposedly endemic Ploesoma peipsiense, are reported.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00031716
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    The rotifers of Lake Peipus (1993)
    Springer
    Hydrobiologia 255-256 (1993), S. 389-396 
    Details
    ISSN: 1573-5117
    Schlagwort(e): rotifers ; seasonal dynamics ; production ; dominant species ; sexual periods ; life cycles
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract In the northern part of Lake Peipus, 140 taxa of rotifers were identified, with species of Anuraeopsis, Conochilus, Keratella, Polyarthra and Synchaeta dominating. Two main periods of sexual reproduction occur, in the spring and autumn. Different life cycle patterns are represented. Rotifer number and biomass have two maxima between spring and early autumn. The contribution of rotifers to total zooplankton production varies from 13.6% (Oct.) to 89.8% (May). The average production of grazing rotifers is 485.1 kJ m−2, while that of predatory rotifers (Asplanchna) is 10.0 kJ m−2.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00025864
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 4
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    Seasonal variability in the structure and functional diversity of psammic rotifer communities: role of environmental parameters (2017)
    Springer
    Details
    Publikationsdatum: 2022-03-09
    Beschreibung: Data on the variability in structure and functioning of interstitial rotifer assemblages are rare; however, this knowledge is essential for understanding their role in the interstitial food web. In the present study, we characterized psammic rotifer communities in terms of dominance structure, trophic traits, taxonomic and functional diversity at a seasonal scale in freshwater lakes across Estonia and coastal beaches of the Baltic Sea. A total of 42 rotifer species were found from the coastal beaches and 66 species from the lakes. Functional indices did not exhibit smaller seasonal variability and neither did they respond better to changes in the environment compared to taxonomic indices. However, there were differences how environmental variables affected these two broad groups of response variables. The taxonomy-based indices of rotifer communities were primarily driven by seasonal temperature regime, sediment characteristics and anthropogenic stressors, whereas the trait-based indices were a function of ecosystem types (freshwater or brackish water). The functional indices of the psammic rotifer communities strongly distinguished between freshwater and brackish habitats indicating that rotifers have different functional roles in food webs in fresh and brackish water environments.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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