Shift in benthic diatom community structure and salinity thresholds in a hypersaline environment of solar saltern, Korea

Bae, Hyun-Joo; Park, Jinsoon; Ahn, Hyun-Jong; Khim, Jong Seong

doi:10.4490/algae.2020.35.12.4

Cited by 10 publications

(7 citation statements)

References 21 publications

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“…The lower species richness in HYP indicates the effect of SAL on diatom assemblage. In many studies, a negative correlation was found between SAL and the species richness of algae (Bae et al, 2020; Balycheva et al, 2023; Güzel, Ongun‐Sevi̇ndi̇k, & Uzun, 2023; Nübel et al, 2000; Shadrin & Anufriieva, 2018). It has been determined that SAL causes osmotic stress on the algae, and the number of algae species decreases depending on the SAL gradient (Flöder & Burns, 2004; Kirst, 1996).…”

Section: Discussionmentioning

confidence: 99%

The effect of salinity and altitude on diatom assemblages and ecological status assessment based on diatom indices in the lentic systems of the Western Mediterranean Basin (Türkiye)

Ongun Sevindik,

Çetin,

Tekbaba

et al. 2024

Ecohydrology

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In this study, littoral diatoms and environmental variables were sampled three times in 2017 (spring, summer, and autumn) to determine the effect of salinity (SAL) and altitude (ALT) on the littoral diatom assemblages (composition, distribution, species richness and diversity) of 12 lentic systems in the Western Mediterranean Basin. Due to the SAL and ALT differences in these systems, they were distinguished under two groups (high elevated freshwater lentic systems [HEF] and hyposaline lentic systems [HYP]). The Bray–Curtis and Canonical Correspondence (CCA) analyses based on diatom species also confirmed this separation. In HYP, SAL and alkalinity (ALK) were the most effective parameters on diatom assemblage. On the other hand, diatom assemblage was mainly affected by ALT in HEF. For the biological assessment of these systems, seven diatom indices were implemented. Although most of the indices showed higher regression with SAL and ALT, they did not give the intended result in the evaluation of HYP. On the other hand, the most consistent index with environmental variables and dominant species in HEF was the Generic Diatom Index (IDG).

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Section: Discussionmentioning

confidence: 99%

The effect of salinity and altitude on diatom assemblages and ecological status assessment based on diatom indices in the lentic systems of the Western Mediterranean Basin (Türkiye)

Ongun Sevindik,

Çetin,

Tekbaba

et al. 2024

Ecohydrology

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“…(Anufriieva, Shadrin & Shadrina, 2017). Other diverse phytoplanktonic communities include those reported from the Dead Sea (Oren, 1988), Kati Thanda‐Lake Eyre (Costelloe et al ., 2005) Salar de Atacama (Thiel et al ., 2010) and in South Korean salterns (Bae et al ., 2020) amongst others.…”

Section: Hypersaline Biota: Diversity Adaptations and Metabolismsmentioning

confidence: 95%

Salt to conserve: a review on the ecology and preservation of hypersaline ecosystems

et al. 2021

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When it comes to the investigation of key ecosystems in the world, we often omit salt from the ecological recipe. In fact, despite occupying almost half of the volume of inland waters and providing crucial services to humanity and nature, inland saline ecosystems are often overlooked in discussions regarding the preservation of global aquatic resources of our planet. As a result, our knowledge of the biological and geochemical dynamics shaping these environments remains incomplete and we are hesitant in framing effective protective strategies against the increasing natural and anthropogenic threats faced by such habitats. Hypersaline lakes, water bodies where the concentration of salt exceeds 35 g/l, occur mainly in arid and semiarid areas resulting from hydrological imbalances triggering the accumulation of salts over time. Often considered the ‘exotic siblings’ within the family of inland waters, these ecosystems host some of the most extremophile communities worldwide and provide essential habitats for waterbirds and many other organisms in already water‐stressed regions. These systems are often highlighted as natural laboratories, ideal for addressing central ecological questions due to their relatively low complexity and simple food web structures. However, recent studies on the biogeochemical mechanisms framing hypersaline communities have challenged this archetype, arguing that newly discovered highly diverse communities are characterised by specific trophic interactions shaped by high levels of specialisation. The main goal of this review is to explore our current understanding of the ecological dynamics of hypersaline ecosystems by addressing four main research questions: (i) why are hypersaline lakes unique from a biological and geochemical perspective; (ii) which biota inhabit these ecosystems and how have they adapted to the high salt conditions; (iii) how do we protect biodiversity from increasing natural and anthropogenic threats; and (iv) which scientific tools will help us preserve hypersaline ecosystems in the future? First, we focus on the ecological characterisation of hypersaline ecosystems, illustrate hydrogeochemical dynamics regulating such environments, and outline key ecoregions supporting hypersaline systems across the globe. Second, we depict the diversity and functional aspects of key taxa found in hypersaline lakes, from microorganisms to plants, invertebrates, waterbirds and upper trophic levels. Next, we describe ecosystem services and discuss possible conservation guidelines. Finally, we outline how cutting‐edge technologies can provide new insights into the study of hypersaline ecology. Overall, this review sheds further light onto these understudied ecosystems, largely unrecognised as important sources of unique biological and functional diversity. We provide perspectives for key future research avenues, and advocate that the conservation of hypersaline lakes should not be taken with ‘a grain of salt’.

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“…Evidence of fresh water (salinity <0.5 parts per thousand [ppt]) to brackish water (0.5 to 30 ppt) would indicate Lake Bonneville deposits or deposits formed under similar environmental conditions. Freshwater indicators in Lake Bonneville sediments and similar freshwater deposits include relatively abundant and diverse ostracode occurrences, with several species present (DeDeckker and Forester, 1988; Forester et al, 2005; Rey et al, 2016; Oviatt, 2017), high chrysophyte cyst-to-diatom ratios, and high diatom abundance and diversity (Cumming et al, 1993; Clavero et al, 2000; Potapova, 2011; Bae et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Lateral and temporal constraints on the depositional history of the Bonneville Salt Flats, Utah, USA

Bernau,

Bowen,

Oviatt

et al. 2024

Quat. res.

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The depositional history of the Bonneville Salt Flats, a perennial saline pan in Utah's Bonneville basin, has poor temporal constraints, and the climatic and geomorphic conditions that led to saline pan formation there are poorly understood. We explore the late Pleistocene to Holocene depositional record of Bonneville Salt Flats cores. Our data challenge the assumption that the saline pan formed from the desiccation of Lake Bonneville, the largest late Pleistocene lake in the Great Basin, which covered this area from 30 to 13 cal ka BP. We test two hypotheses: whether climatic transitions from (1) wet to arid or (2) arid to wet led to saline pan deposition. We describe the depositional record with radiocarbon dating, sedimentological structures, mineralogy, diatom, ostracode, and portable X-ray fluorescence spectrometer measurements. Gypsum and carbonate strontium isotope ratio measurements reflect changes in water sources. Three shallow saline lake to desiccation cycles occurred from >45 and >28 cal ka BP. Deflation removed Lake Bonneville sediments between 13 and 8.3 cal ka BP. Gypsum deposition spanned 8.3 to 5.4 cal ka BP, while the oldest halite interval formed from 5.4 to 3.5 cal ka BP during a wetter period. These findings offer valuable insights for sedimentologists, archaeologists, geomorphologists, and land managers.

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Shift in benthic diatom community structure and salinity thresholds in a hypersaline environment of solar saltern, Korea

Cited by 10 publications

References 21 publications

The effect of salinity and altitude on diatom assemblages and ecological status assessment based on diatom indices in the lentic systems of the Western Mediterranean Basin (Türkiye)

The effect of salinity and altitude on diatom assemblages and ecological status assessment based on diatom indices in the lentic systems of the Western Mediterranean Basin (Türkiye)

Salt to conserve: a review on the ecology and preservation of hypersaline ecosystems

Lateral and temporal constraints on the depositional history of the Bonneville Salt Flats, Utah, USA

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