Nuisance mucilage produced by <i>Lindavia intermedia</i> (Bacillariophyceae) in New Zealand lakes

Novis, Phil M.; Bell, Tracey; Fraser, Putri; Luiten, Cara A.; Hinkley, Simon F.R.; Borges, Hugo; Schallenberg, Marc

doi:10.1080/20442041.2021.1962197

Cited by 4 publications

(10 citation statements)

References 53 publications

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“…In both datasets 1 and 2, the snow tow method was used, whereas in dataset 2 the snow pump method was also used to collect material for mucilage dry mass and chitin estimations. Details of these methods are described in Novis et al [13], but briefly, the snow tow method involved towing a known length of braided fishing line to which an approx. 1 kg weight was attached for a known distance (usually 1 km) at a velocity of approx.…”

Section: Mucilage Quantificationmentioning

confidence: 99%

“…The snow pump method uses a submersible bilge pump to draw water through a 220 μm nylon sieve, as described in Novis et al [13]. The pump was deployed at the same depths from which water sampling for nutrients and chlorophyll a was undertaken (Table 2).…”

Section: Plos Watermentioning

confidence: 99%

“…The mucilage proliferations reported from South Island lakes have been attributed to secretions of β-chitin (β-(1!4)-linked N-acetylglucosamine) polymer from the invasive cyclotelloid diatom Lindavia intermedia [9,11], which appears to have invaded New Zealand from the West Coast of North America [12]. Recently, molecular methods were developed to quantify L. intermedia cell densities in whole lake water and to quantify the expression of a chitin synthase gene in L. intermedia [11,13]. In addition, two methods were developed to quantitatively sample the pelagic mucilage from lake water [13].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, molecular methods were developed to quantify L. intermedia cell densities in whole lake water and to quantify the expression of a chitin synthase gene in L. intermedia [11,13]. In addition, two methods were developed to quantitatively sample the pelagic mucilage from lake water [13]. These methodological advances facilitate the study the temporal dynamics of lake mucilage biomass and production.…”

Section: Introductionmentioning

confidence: 99%

“…These methods were deemed inappropriate for the routine monitoring of pelagic mucilage in our lakes. Instead, we used recently developed methods for mucilage quantification [13] in two monitoring programmes which surveilled four low-nutrient-status lakes which had been reported to contain pelagic mucilage associated with L. intermedia [9].…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of pelagic mucilage produced by the invasive, cyclotelloid diatom, Lindavia intermedia, in oligotrophic lakes of New Zealand

Schallenberg

Borges²,

Bell³

et al. 2022

PLOS Water

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Marine pelagic mucilages (e.g., marine snow) have been reported to a greater extent than their lacustrine counterparts. A pelagic mucilage primarily comprised of chitin secretions from the invasive centric diatom, Lindavia intermedia, has been reported since the early 2000s, primarily from large, oligotrophic pre-alpine lakes of the South Island of New Zealand. To better understand the factors related to mucilage abundance, we monitored its abundance as well as factors potentially related to mucilage production over time in four mucilage-afflicted lakes. Temporal mucilage dynamics were episodic, with peaks in abundance occurring during any season, but most often during summer and autumn. Chitin was confirmed to be an important component of the mucilage, but the chitin content varied between 1 and 12% of the mucilage dry mass in the lakes. An RT-qPCR assay for chitin synthase gene overexpression in L. intermedia showed that overexpression occurred in summer and autumn, often when peaks in mucilage abundance also occurred. A correlation between mucilage and phytoplankton abundance was only observed in one of the lakes. Both dissolved reactive and total phosphorus concentrations were often below analytical detection limits in these lakes. Nitrate concentrations were also low and showed negative correlations with mucilage abundance. This suggests either that the secrection of chitinous mucilage by L. intermedia significantly depleted the available N in the water column or that mucilage facilitated N uptake by L. intermedia and/or other microorganisms associated with the mucilage. Pelagic mucilage in New Zealand lakes shares many characteristics of other conspicuous mucilage phenomena, including lake snow and marine snow. While our correlational analyses revealed some relationships and associations with mucilage abundance, the strengths of these were quite variable, indicating that as yet unstudied mucilage loss processes in these lakes (e.g., sedimentation, disintegration, decomposition, assimilation) likely also play important roles in regulating mucilage abundance.

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Section: Mucilage Quantificationmentioning

confidence: 99%

Section: Plos Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dynamics of pelagic mucilage produced by the invasive, cyclotelloid diatom, Lindavia intermedia, in oligotrophic lakes of New Zealand

Schallenberg

Borges²,

Bell³

et al. 2022

PLOS Water

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Comprehensive review on recent trends and perspectives of natural exo-polysaccharides: Pioneering nano-biotechnological tools

Tiwari,

Bobby,

Kondi

et al. 2024

International Journal of Biological Macromolecules

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The Impact of Early Diagenesis on Biosignature Preservation in Sulfate Evaporites: Insights From Messinian (Late Miocene) Gypsum

Pellegrino,

Natalicchio,

Cotellucci

et al. 2024

Geobiology

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Due to their fast precipitation rate, sulfate evaporites represent excellent repositories of past life on Earth and potentially on other solid planets. Nevertheless, the preservation potential of biogenic remains can be compromised by extremely fast early diagenetic processes. The upper Miocene, gypsum‐bearing sedimentary successions of the Mediterranean region, that formed ca. 6 million years ago during the Messinian salinity crisis, represent an excellent case study for investigating these diagenetic processes at the expense of organic matter and associated biominerals. Several gypsum crystals from the Northern Mediterranean were studied by means of destructive and non‐destructive techniques in order to characterize their solid inclusion content and preservation state. In the same crystal, excellently preserved microfossils coexist with strongly altered biogenic remains. Altered remains are associated with authigenic minerals, especially clays. The results demonstrate that a significant fraction of organic matter and associated biominerals (notably biogenic silica) underwent early diagenetic modification. The latter was likely triggered by bottom sulfidic conditions when the growth of gypsum was interrupted. These results have significant implications for the interpretation of the Messinian Salt Giant.

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Nuisance mucilage produced by Lindavia intermedia (Bacillariophyceae) in New Zealand lakes

Cited by 4 publications

References 53 publications

Dynamics of pelagic mucilage produced by the invasive, cyclotelloid diatom, Lindavia intermedia, in oligotrophic lakes of New Zealand

Dynamics of pelagic mucilage produced by the invasive, cyclotelloid diatom, Lindavia intermedia, in oligotrophic lakes of New Zealand

Comprehensive review on recent trends and perspectives of natural exo-polysaccharides: Pioneering nano-biotechnological tools

The Impact of Early Diagenesis on Biosignature Preservation in Sulfate Evaporites: Insights From Messinian (Late Miocene) Gypsum

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