Reconstruction of the former charophyte community out of the fructifications identified in Albufera de València lagoon sediments

Rodrigo, María A.; Alonso-Guillén, Jose L.; Soulié-Märsche, Ingeborg

doi:10.1016/j.aquabot.2009.09.002

Cited by 54 publications

(38 citation statements)

References 23 publications

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“…These densities were much lower than those in previous studies on recent fossil oospores (i.e., Davidson et al, 2005;Rodrigo et al, 2010). For example, the number of oospores and gyrogonites in the sediments of Albufera de Valéncia lagoon (area 23 km 2 , mean depth 1-2 m) was more than 30 (Rodrigo et al, 2010).…”

Section: Indicatedcontrasting

confidence: 43%

Reconstruction of the charophyte community of Lake Shinji by oospore collection

Komuro

Sakayamai

Kamiya

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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-Submerged aquatic vegetation (SAV) aids in maintaining a clear stable state in shallow lakes. However, charophytes are more effective in increasing transparency compared to angiosperms. Lake Shinji was more transparent prior to the beginning of herbicide use for rice weed control in the mid-1950s, because its bottom was covered by SAV up to 3 m depth. Although Chara braunii C.C. Gmelin and Nitella hyaline (De Candolle) C. Agardh were recorded in the 1960s, there are no reports on SAV in the 1950s. Therefore, in the present study, we aimed to show that the SAV of Lake Shinji was mostly composed of charophytes prior to the 1950s, by conducting a seed analysis. We obtained charophyte oospores from the sediment, but seeds of angiosperms were not identified. In addition to C. braunii that was previously recorded in Lake Shinji, we also found two newly identified species, Chara corallina Willdenow and Chara fibrosa C. Agardh ex Bruzelius. Overall, this study indicates that seed analysis is helpful in reconstructing the former flora of Lake Shinji. Key-words:Seed analysis / water transparency / Chara corallina / submerged aquatic vegetation Résumé -Reconstruction de la communauté de charophytes du Lac Shinji par collection d'oospores. La vé-gétation aquatique submergée (SAV) aide à maintenir un état clair stable dans les lacs peu profonds. Cependant, les charophytes sont plus efficaces que les angiospermes pour accroître la transparence. Le lac Shinji était plus transparent avant le début de l'utilisation d'herbicides pour le désherbage du riz au milieu des années 1950, parce que son fond était couvert par la SAV jusqu'à 3 m de profondeur. Bien que Chara braunii C.C. Gmelin et Nitella hyaline (De Candolle) C. Agardh ont été notés dans les années 1960, il n'y a pas de données sur la SAV dans les années 1950. Par conséquent, dans la présente étude, nous avons cherché à montrer que la SAV du Lac Shinji était surtout composée de charophytes avant les années 1950, en procédant à une analyse des semences. Nous avons obtenu des oospores de charophytes du sédiment, mais les graines d'angiospermes n'ont pas été identifiées. En plus de C. braunii qui a déjà été enregistré dans le lac Shinji, nous avons aussi trouvé deux espèces nouvellement identifiées, Chara corallina Willdenow et Chara Fibrosa C. Agardh ex Bruzelius. Dans l'ensemble, cette étude indique que l'analyse des semences est utile dans la reconstruction des anciennes flores du lac Shinji. Mots-clés :Analyse de semences / transparence de l'eau / Chara corallina / végétation aquatique submergée

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Section: Indicatedcontrasting

confidence: 43%

Reconstruction of the charophyte community of Lake Shinji by oospore collection

Komuro

Sakayamai

Kamiya

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

View full text Add to dashboard Cite

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“…Apparently viable oospores were defined as intact, hard oospores that did not undergo deformation when pressed with the forceps and contained ''healthy'' starch granules (de Winton et al, 2004;Rodrigo et al, 2010). Apparently viable gyrogonites were defined by the presence of an intact calcium carbonate cover.…”

Section: Charophyte Sampling and Analysesmentioning

confidence: 99%

The role of charophytes in a Mediterranean pond created for restoration purposes

et al. 2015

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“…Under favorable conditions, oospores can germinate even after decades [23]. During the last few years water column phosphorus concentrations in the Vistula Lagoon have declined [24].…”

Section: Characteristics Of Chara Connivens Sitesmentioning

confidence: 99%

New records of Chara connivens P. Salzmann ex A. Braun 1835 – an extremely rare and protected species in Polish brackish waters

et al. 2015

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The stonewort Chara connivens was rediscovered in the Vistula Lagoon in 2011, almost 35 years after its last record. In 2012, the species was recorded for the first time in the Szczecin Lagoon. Chara connivens occurred at shallow (0.5-1.2 m) sandy-muddy and muddy bottoms of small embayments. In the Vistula Lagoon, the stonewort was represented by single small specimens, while in the Szczecin Lagoon, it formed dense and extensive patches.

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Reconstruction of the former charophyte community out of the fructifications identified in Albufera de València lagoon sediments

Cited by 54 publications

References 23 publications

Reconstruction of the charophyte community of Lake Shinji by oospore collection

Reconstruction of the charophyte community of Lake Shinji by oospore collection

The role of charophytes in a Mediterranean pond created for restoration purposes

New records of Chara connivens P. Salzmann ex A. Braun 1835 – an extremely rare and protected species in Polish brackish waters

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