Application of diatom biotic indices in the Guadalquivir River Basin, a Mediterranean basin. Which one is the most appropriated?

Martı́n, Gonzalo; Toja, Julia; Sala, Silvia E.; Fernández, María de los Reyes; Reyes, Isabel; Casco, María Adela

doi:10.1007/s10661-009-1254-5

Cited by 34 publications

(18 citation statements)

References 34 publications

(21 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The summary of environmental data is shown in Table 1. Previous studies on Achnanthidium stated that species of this genus live in alkaline to acidic environments [14]; this is supported by the results of the present study. Achnanthidium ovale and A. minutissimum were collected from an alkaline environment, whereas A. cavitatum was collected from an acidic environment.…”

Section: Ecological Characteristics Of Two Achnanthidium Speciessupporting

confidence: 92%

Two New Benthic Diatoms of the Genus Achnanthidium (Bacillariophyceae) from the Hangang River, Korea

Miao

Hwang

et al. 2020

Diversity

View full text Add to dashboard Cite

Two new benthic freshwater species belonging to the genus Achnanthidium were found in Korea. Achnanthidium ovale sp. nov. and A. cavitatum sp. nov. are described as new species based on light and scanning electron microscopy observations and molecular analyses. Both species are compared with the type material of morphologically similar taxa. Achnanthidium ovale differs from other species belonging to the A. pyrenaicum complex in outline, striation pattern, raphe central endings, and freestanding areolae at the apices. Achnanthidium cavitatum differs from other species in the A. minutissimum complex in outline, broad axial central area in the raphel ess valve, and slit-like areolae near the axial central area. We assessed their molecular characteristics by analyzing nuclear small subunit (SSU) rRNA and chloroplast-encoded rbcL gene sequences. Both the morphological comparison and the SSU and rbcL sequence analyses provide strong evidence to support the recognition of A. ovale and A. cavitatum as new species.

show abstract

Section: Ecological Characteristics Of Two Achnanthidium Speciessupporting

confidence: 92%

Two New Benthic Diatoms of the Genus Achnanthidium (Bacillariophyceae) from the Hangang River, Korea

Miao

Hwang

et al. 2020

Diversity

View full text Add to dashboard Cite

show abstract

“…Nitzschia frustulum commonly found in various habitats such as fresh, coastal and marine waters. Some Nitzschia species are indicators of heavy metal contamination and eutrophic conditions [19]. Pinnularia divergentissima was abundant species and commonly found in TP 4.…”

Section: Resultsmentioning

confidence: 99%

Epipelic Diatom Communities in Pengilon Lake Dieng, Central Java

Soeprobowati¹,

Jumari²,

Hariyati³

et al. 2019

E3S Web Conf.

View full text Add to dashboard Cite

Diatom communities in the lake have an advantage of environmental assessment and paleo reconstruction study, due to the ability of diatom preserved in the sediment. There are only limited studies about taxonomy, ecology, and diversity of diatom flora in tropical areas, especially Indonesia. The main objective of the research is to describe the structure of benthic diatom communities in Pengilon Lake, together with physical chemical variables. Sediment samples were collected at an altitude of more than 2,000 msal habitats with pH around 5.40-6.86. A total of 83 diatom species identified as belonging to 16 families. The diversity index ranges from about 2.25 to 3.01 indicated the ecosystem that naturally stable with none diatom dominant. The most abundant genera were Eunotia with high diversity around 14 taxa. The composition of Eunotia assemblages was different among habitat and season variation. Eunotia has a wide tolerance of pH because of its ability to survive in an area with an acidic environment and circumneutral water. The most dominance diatom species in Pengilon Lake were Eunotia paludosa (Grunow) 39.2%, Nitzschia frustulum (Kutzing) 28.1%, Pinnularia viridis (Krammer & Lange-Bertalot) and Pinnularia divergentissima (Grunow) 24.6%.

show abstract

“…However, EPI-D has given extremely good results in Italian Mediterranean Rivers (Dell'Uomo et al, 1999 andTorrisi andDell'Uomo, 2006). Martin et al (2010) found that the application of the EPI-D diatom index is recommended because of its inherent advantages. An important reason for the failure of the application of these diatomic indices is the great differences between the species pool present in the area of study with regions where these indices developed.…”

Section: Discussionmentioning

confidence: 99%

Epipelic algal distribution in Ismailia Canal and the possible use of diatoms as bioindicators and a biomonitoring tool

El-Karim

2014

Egyptian Journal of Aquatic Research

View full text Add to dashboard Cite

Ecology of Ismailia Canal and its branches were studied under a comprehensive program of the Freshwater and lakes Division, National Institute of Oceanography and Fisheries. Sixteen stations were selected quarterly in Ismailia Canal and its branches during 2011. Physical and chemical characters of water with surface sediment were sampled. Diatoms dominated the epipelon community, whereas chlorophyceae and cyanobacteria were rarely present. One hundred sixty-seven epipelic species were recorded. Diatoms were dominated by the centric diatoms Cyclotella spp. and Aulacoseira spp. Most frequent diatom species underwent multivariate analysis of TWINSAPN to clarify the classification of diatom species and CCA to correlate them to the most effective environmental parameters. Most species were positively affected by eutrophication, PO 4 and NH 4 , and seasonal related factor, temperature, whereas some other species were negatively affected by pH and SiO 2 . Three diatom indices were applied to assess the ecological status of the studied area. Diatom species were tested as ecological bioindicators and four diatom taxa. Cocconeis placentula, Achnanthidium minutissimum, Fragilaria construens var. venter, Navicula atomus and Nitzschia gracilis satisfied the indicator selection criteria for some ecological parameters. Trophic Diatom Index (TDI), Eutrophication Pollution Index (EPI-D) and the Pampean Diatom Index (IDP) were applied. The results of the TDI revealed that the majority of the canal stations were in the acceptable ring but showed non-significant relation with the eutrophication parameters. Both IDP and EPI-D classified the stations of the canal and its branches in the high and good category of ecological status, respectively, which were not the real state in the canal and its branches as revealed by their correlation with the eutrophication parameters. The application of diatomic indices developed in foreign country cannot be applied in Egyptian environment and the development of indices based on the Egyptian ecoregions is very necessary. ª 2014 Hosting by Elsevier B.V. on behalf of National Institute of Oceanography and Fisheries. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

show abstract

Application of diatom biotic indices in the Guadalquivir River Basin, a Mediterranean basin. Which one is the most appropriated?

Cited by 34 publications

References 34 publications

Two New Benthic Diatoms of the Genus Achnanthidium (Bacillariophyceae) from the Hangang River, Korea

Two New Benthic Diatoms of the Genus Achnanthidium (Bacillariophyceae) from the Hangang River, Korea

Epipelic Diatom Communities in Pengilon Lake Dieng, Central Java

Epipelic algal distribution in Ismailia Canal and the possible use of diatoms as bioindicators and a biomonitoring tool

Contact Info

Product

Resources

About