Spatio-temporal pattern of phytoplankton and pigment composition in surface waters of south-eastern Black Sea

Ağırbaş, Ertuğrul; Koca, Lutfiye; Aytan, Ülgen

doi:10.1016/j.oceano.2017.03.004

Cited by 17 publications

(10 citation statements)

References 64 publications

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“…The supernatant absorbance then was observed at wavelengths 664, 647 and 630, where the wavelength of 750 was used as a turbidity control. The chlorophyll-a concentration was calculated using the following formula: Chl-a = 11.85 (λ664) -1.54 (λ647) -0.008 (λ630) (1) Concentration of Chl-a (mg.m -3 ) = Ca ×…”

Section: Methodsmentioning

confidence: 99%

“…Meanwhile, the research conducted by Subiyanto (2017) in the river of Banjir Kanal Barat (BKB) suggested that the concentration of chlorophyll-a is extremely high and the water conditions are considered at the eutrophic level. The chlorophyll-a concentration is often used to estimate the phytoplankton biomass and aquatic productivity that further can be used as consideration in the context of marine resource management and monitoring of water quality (Zhang and Han, 2015;Agirbas et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution of Chlorophyll-a and Its Relationship with Dissolved Inorganic Phosphate Influenced by Rivers in the North Coast of Java

Maslukah¹,

Zainuri²,

Wirasatriya³

et al. 2019

J. Ecol. Eng.

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This research examines the eutrophication process mainly by considering the chlorophyll-a concentration. A simple linear model was used to determine the correlation between Chlorophyll-a and dissolved inorganic phosphate (DIP). The research was carried out on river mouths in the north coast of Central Java. The results of the linear model show that the relationship between chlorophyll-a and DIP follows the logarithmic model with the log [Chloa] = 1.52 + 1.60 log [DIP], R 2 = 0.55. The model suggests that the high concentration of chlorophyll-a is related to dissolved inorganic phosphate concentrations. On the basis of the sufficient of conclusive evidence for these variables, the study sites with high stresses from several anthropogenic sources had higher chlorophyll-a than the sites that are relatively far from river mouths and lands.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Chlorophyll-a and Its Relationship with Dissolved Inorganic Phosphate Influenced by Rivers in the North Coast of Java

Maslukah¹,

Zainuri²,

Wirasatriya³

et al. 2019

J. Ecol. Eng.

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“…The validity of using pigment signatures detected by HPLC to estimate phytoplankton group composition was tested for the Mediterranean Sea (Thyssen et al ., 2011; Yücel, 2017) and Black Sea (Ediger et al ., 2006; Eker-Develi et al ., 2012; Agirbas et al ., 2015, 2017). Although there have been many studies on phytoplankton in the Golden Horn Estuary (Tas et al ., 2009; Tas & Okus, 2011; Tas & Yilmaz, 2015; Dursun & Tas, 2019; Tas, 2019) based on microscopic examination, the phytoplankton group composition had not yet been evaluated by HPLC pigment analysis in this region.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, studies have focused on phytoplankton communities of the Golden Horn Estuary (GHE) by microscopic analysis including the variations in phytoplankton composition (Tas et al ., 2009; Dursun & Tas, 2019), planktonic diatom composition (Tas, 2017; Tas & Hernández-Becerril, 2017), and algal blooms and potentially harmful species (Tas & Okus, 2011; Tas, 2015, 2019; Tas & Yilmaz, 2015; Dursun et al ., 2016; Tas & Lundholm, 2017). However, no study has been performed in the GHE using HPLC, despite HPLC pigment signatures being widely used in Turkish seas (Ediger et al ., 2006; Eker-Develi et al ., 2012; Agirbas et al ., 2017; Yücel, 2017).…”

Section: Introductionmentioning

confidence: 99%

Assessment of phytoplankton group composition in the Golden Horn Estuary (Sea of Marmara, Turkey) determined with pigments measured by HPLC-CHEMTAX analyses and microscopy

2021

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Phtytoplankton group composition determined by microscopy was compared with high performance liquid chromatography (HPLC) derived from pigment signatures in surface water samples taken bi-weekly and monthly between October 2018 and September 2019 in the Golden Horn Estuary (Sea of Marmara). A total of 80 eukaryotic phytoplankton taxa belonging to eight algal classes were identified in surface water during the study period. Forty-three taxa (54%) were diatoms, 29 taxa (36%) were dinoflagellates and eight taxa (10%) were other phytoflagellates. The average contribution of diatoms to total phytoplankton abundance decreased considerably (41 to 25%), while the average contribution of dinoflagellates and other phytoflagellates increased markedly (59 to 75%) from the lower to the middle estuary. Chlorophyll-a and seven other group-specific pigments, including fucoxanthin, peridinin, chlorophyll-c1 + c2, alloxanthin, 19′-hexanoyloxyfucoxanthin, 19′-butanoyloxyfucoxanthin and divinyl chlorophyll-a were identified in the study area. The relative contribution of the major phytoplankton groups to chlorophyll-a was estimated on three different initial ratio matrices by CHEMTAX. The results obtained were compared with those from microscopic examination. It was concluded that the CHEMTAX method was not accurate enough to characterize the phytoplankton community in the Golden Horn Estuary ecosystem and microscopic analysis was essential to determine the major contributing species to chlorophyll-a.

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“…In aquatic ecosystems, diatoms play an important role within the trophic web (Agirbas et al 2017), presenting high species diversity (Hutchinson 1967) especially in coastal zones (Iriarte et al 2012). Consequently, they are considered to be indicators of environmental quality, mainly because they are present throughout the entire year, have short life cycles and are ecologically more easily recognized (Round et al 1990).…”

Section: Introductionmentioning

confidence: 99%

Planktonic diatom assemblage seasonal diversity used to assess environmental health in a coastal wetland of southern Chile

Ríos-Henríquez

Fuentes

Tobar

et al. 2020

Preprint

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Although planktonic diatoms are one of the most abundant taxonomic groups in coastal wetlands, their assemblages have not been used to determine the environmental health of these ecosystems. Studies of ecosystem environmental health have been based on other taxonomic groups; we propose that diatom genera diversity represents a viable alternative for this purpose. Thus, our aim was to determine the alpha and beta diversities of the planktonic diatom assemblage present in Caulin Bay, Chiloe Island,southern Chile, during the austral winter and spring of the years 2012 and 2014. Inasmuch Caulin Bay is an important site for aquatic bird observation and conservation, hunting is prohibited on a national scale and, internationally, the site has been declared an Important Bird and Biodiversity Area (IBA). Our results indicate different diversities between sampling stations, but not between the years studied. In total, we recorded 53 diatom genera, of which the most abundant were Coscinodiscus (21.99%) and Cocconeis (16.23%). The study area presented high genera diversity and beta diversity indicated that Caulin presents a low level of heterogeneity and is a low genera replacement environment. Consequently, we infer that Caulin Bay is productive and environmentally stable ecosystem. This leads us to conclude that diatom diversity determination is a viable alternative to establish aquatic ecosystem environmental health and we recommend that future conservation strategies be established for Caulin Bay.

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Spatio-temporal pattern of phytoplankton and pigment composition in surface waters of south-eastern Black Sea

Cited by 17 publications

References 64 publications

Spatial Distribution of Chlorophyll-a and Its Relationship with Dissolved Inorganic Phosphate Influenced by Rivers in the North Coast of Java

Spatial Distribution of Chlorophyll-a and Its Relationship with Dissolved Inorganic Phosphate Influenced by Rivers in the North Coast of Java

Assessment of phytoplankton group composition in the Golden Horn Estuary (Sea of Marmara, Turkey) determined with pigments measured by HPLC-CHEMTAX analyses and microscopy

Planktonic diatom assemblage seasonal diversity used to assess environmental health in a coastal wetland of southern Chile

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