scholarly journals Epilithic diatoms of settlement of Sivrice district (Hazar Lake/Elazig-Turkey)

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
G Pala ◽  
M Caglar ◽  
Z Selamoglu
Keyword(s):  
Epilithic Diatoms ◽  
Hazar Lake

Achnanthidium palmeti (Bacillariophyta, Achnanthidiaceae), a new freshwater species from Réunion Island 

Phytotaxa ◽  
2013 ◽  
Vol 119 (1) ◽  
pp. 21 ◽  
Author(s):  
GILLES GASSIOLE ◽  
RENÉ LE COHU ◽  
MICHEL COSTE
Keyword(s):  
New Species ◽  
Recent Survey ◽  
Running Waters ◽  
Freshwater Species ◽  
Reunion Island ◽  
Epilithic Diatoms ◽  
Réunion Island ◽  
A New Species ◽  
Circumneutral Ph

Recent survey of the epilithic diatoms in the running waters of Réunion Island led to the discovery of a new species of Achnanthidium. Achnanthidium palmeti sp. nov. belongs to the group of Achnanthidium taxa with terminal raphe fissures curved to the same side of the valve. The new species differs from other taxa in this group by a higher stria density and the areolae morphology along the axial area; moreover, apart from Achnanthidium latecephalum H. Kobayasi, A. palmeti sp. nov. is the only species having raphe vestiges. The new species was found in oligotrophic waters with very low conductivity and circumneutral pH. 

Epilithic diatoms as bioindicators of stream acidification

1991 ◽  
Vol 24 (3) ◽  
pp. 1877-1880
Author(s):  
Christian Steinberg ◽  
Rainer Putz
Keyword(s):  
Stream Acidification ◽  
Epilithic Diatoms

scholarly journals Benthic diatoms of the Vrla River (Serbia) and their application in the water ecological status assessment

2016 ◽  
Vol 45 (3) ◽  
Author(s):  
Olga Jakovljević ◽  
Slađana Popović ◽  
Ivana Živić ◽  
Katarina Stojanović ◽  
Jelena Krizmanić
Keyword(s):  
Dominant Species ◽  
Ecological Status ◽  
Benthic Diatoms ◽  
Epilithic Diatoms ◽  
Ecological Status Assessment ◽  
Status Assessment

AbstractEpilithic diatoms from the Vrla River (Serbia) have been used to assess the ecological status of water. A total of 227 diatom taxa belonging to 50 genera were identified in the Vrla River during six research seasons with 13 dominant species recorded.

Epilithic diatoms of the St. Lawrence River and their relationships to water quality

1998 ◽  
Vol 76 (2) ◽  
pp. 251-257 ◽  
Author(s):  
Euan D Reavie ◽  
John P Smol
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Suspended Solids ◽  
Fecal Coliforms ◽  
Weighted Averaging ◽  
Quebec City ◽  
Diatom Assemblages ◽  
Epilithic Diatoms ◽  
Epilithic Diatom ◽  
St Lawrence River

Epilithic diatoms were sampled at 48 sites along the St. Lawrence River, from Salaberry de Valleyfield to Québec City, in an attempt to determine how diatom assemblages were related to measured water quality variables. Canonical correspondence analysis was used to explore the relationships between environmental variables and patterns in the epilithic diatom assemblages. "Distance downstream from Cornwall" was determined to be the strongest variable influencing the structure of epilithic diatom assemblages, likely due to the effect of tides (favouring aerophilic species) closer to the river outlet. Variables related to pollution (suspended solids, fecal coliforms, chlorophyll a) also explained significant (P < 0.05) amounts of variance in the diatom assemblages. The optima of common diatom species to suspended solids were explored further. Reconstructive models using weighted-averaging calibration and regression illustrated that "distance from Cornwall" and concentrations of suspended solids, fecal coliforms, and chlorophyll a, the most influential variables, could be inferred from the diatom assemblages. When compared with the inference models developed for pollution variables using epiphytic diatom assemblages (attached to macrophytes or Cladophora), the epilithon model appears to perform better.Key words: diatoms, rocks, epilithic, St. Lawrence River, water quality, calibration.

EPILITHIC DIATOMS FROM RHEOCRENE SPRINGS IN THE EASTERN ALPS (VORARLBERG, AUSTRIA)

2010 ◽  
Vol 25 (1) ◽  
pp. 43-66 ◽  
Author(s):  
Doris Gesierich ◽  
Werner Kofler
Keyword(s):  
Eastern Alps ◽  
Epilithic Diatoms
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