Effects of zooplankton grazing on the bloom-forming Cyanothece sp. in a subtropical estuarine lake

Plooy, Schalk J. du; Carrasco, Nicola K.; Perissinotto, Renzo

doi:10.1093/plankt/fbx039

Cited by 7 publications

(4 citation statements)

References 66 publications

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“…In a recent review of the interactions between zooplankton and cyanobacterial blooms under eutrophic conditions, Ger et al [35] pointed out that while cyanobacteria can at times limit zooplankton grazing due to the interference of feeding apparatus and/or release of toxins, both protozoan and crustacean grazers may effectively limit cyanobacterial growth directly, and cascading effects among zooplankton grazers can lead to indirect controls on cyanobacterial growth as well-particularly in more eutrophic lakes. The patterns that we observe in Vancouver Lake, i.e., the top-down influence of zooplankton feeding that promotes cyanobacterial abundance and bloom initiation, have also been demonstrated in several other systems, including Lake St. Lucia in South Africa [116], Lake Kinneret in Israel [113], Florida Bay [117], Lake Erie [97], and even during 'brown tide' (Aureoumbra lagunensis) blooms in Texas [118].…”

Section: Vancouver Lake As a Model System For Investigating Multiplesupporting

confidence: 74%

Beyond Eutrophication: Vancouver Lake, WA, USA as a Model System for Assessing Multiple, Interacting Biotic and Abiotic Drivers of Harmful Cyanobacterial Blooms

Rollwagen‐Bollens

Lee

Rose

et al. 2018

Water

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Eutrophication of lakes and reservoirs has contributed to an increase in the magnitude and frequency of harmful cyanobacterial blooms; however, the interactive effects of nutrient availability (eutrophication) and other abiotic and biotic drivers have rarely been comprehensively studied in the field. We undertook an eight-year (2005-2013) research program that assessed the interaction of multiple factors driving cyanobacterial blooms in Vancouver Lake, a large, shallow eutrophic lake in Washington, USA. Our program consisted of nearly continuous monthly or weekly monitoring of water quality and plankton community composition over eight years, as well as multiple zooplankton grazing experiments over three years. We found a relatively consistent seasonal succession of phytoplankton and zooplankton assemblages, and a pattern of interacting factors influencing cyanobacterial bloom dynamics. Typically, a combined effect of decreased dissolved inorganic nitrogen (N), a sudden increase of dissolved inorganic phosphorus (P), and a cascading effect of zooplankton grazing created a 'perfect storm' of conditions that promoted the rapid proliferation of cyanobacteria over the two to three weeks before a bloom. At the blooms' peaks, cyanobacterial carbon biomass reached as high as 20 µg L −1 , with total [chl a] often exceeding 750 µg L −1. In the weeks following the blooms' peaks, [PO 4-P] and [NH 4-N] dropped and copepod feeding rates fell to near zero, whereas microzooplankton grazing rates reached their maxima. Microzooplankton grazing impact, combined with low nutrient availability, then drove down cyanobacteria abundance. Vancouver Lake serves as a model for understanding multiple, interacting drivers of cyanobacterial bloom dynamics in shallow, temperate lakes, and is therefore an important system in which to investigate new questions related to the science and management of harmful algal blooms.

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Section: Vancouver Lake As a Model System For Investigating Multiplesupporting

confidence: 74%

Beyond Eutrophication: Vancouver Lake, WA, USA as a Model System for Assessing Multiple, Interacting Biotic and Abiotic Drivers of Harmful Cyanobacterial Blooms

Rollwagen‐Bollens

Lee

Rose

et al. 2018

Water

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“…Real case studies, such as the introduction of copepods in Lake Taihu, China, demonstrate significant reductions in cyanobacteria like Microcystis aeruginosa [112,113]. Another study indicated that increased populations of the cladoceran zooplankton reduced the biomass of cyanobacteria, highlighting the potential of zooplankton as a natural control agent for HABs [114,115]. Additionally, wetlands play a pivotal role by decomposing particulate organic matter (POMs) and HABs into simpler compounds essential for water purification [18,[116][117][118].…”

Section: Biological Methodsmentioning

confidence: 99%

Toward a Brighter Future: Enhanced Sustainable Methods for Preventing Algal Blooms and Improving Water Quality

Hwang,

Cho,

Kim

et al. 2024

Hydrobiology

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This comprehensive review explores the escalating challenge of nutrient enrichment in aquatic ecosystems, spotlighting the dire ecological threats posed by harmful algal blooms (HABs) and excessive particulate organic matter (POM). Investigating recent advancements in water treatment technologies and management strategies, the study emphasizes the critical need for a multifaceted approach that incorporates physical, chemical, and biological methods to effectively address these issues. By conducting detailed comparative analyses across diverse aquatic environments, it highlights the complexities of mitigating HABs and underscores the importance of environment-specific strategies. The paper advocates for sustainable, innovative solutions and international cooperation to enhance global water quality and ecosystem health. It calls for ongoing advancement, regular monitoring, and comprehensive research to adapt to emerging challenges, thus ensuring the preservation of aquatic biodiversity and the protection of communities reliant on these vital resources. The necessity of integrating technological innovation, ecological understanding, and global cooperation to safeguard aquatic ecosystems for future generations is paramount.

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“…Given the identical grazing/mortality rates, the competition is mainly governed by the growth rate. At the same time, uncertainties in grazing rates are large; the grazing rates vary from nearly zero to as high as 0.7 d −1 for Crocosphaera [10] , [43] , whereas grazing rates for Cyanothece seem to be slightly more stable (0.18–0.58 d −1 ) [9] . Pinning down the effect of grazing will ultimately require additional experiments for these two organisms and their potential grazers under a set of identical growth conditions.…”

Section: Simulated Competition Between Crocosphaera ...mentioning

confidence: 99%

The balance between photosynthesis and respiration explains the niche differentiation between Crocosphaera and Cyanothece

Masuda¹,

Inomura²,

Gao³

et al. 2023

Computational and Structural Biotechnology Journal

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Effects of zooplankton grazing on the bloom-forming Cyanothece sp. in a subtropical estuarine lake

Cited by 7 publications

References 66 publications

Beyond Eutrophication: Vancouver Lake, WA, USA as a Model System for Assessing Multiple, Interacting Biotic and Abiotic Drivers of Harmful Cyanobacterial Blooms

Beyond Eutrophication: Vancouver Lake, WA, USA as a Model System for Assessing Multiple, Interacting Biotic and Abiotic Drivers of Harmful Cyanobacterial Blooms

Toward a Brighter Future: Enhanced Sustainable Methods for Preventing Algal Blooms and Improving Water Quality

The balance between photosynthesis and respiration explains the niche differentiation between Crocosphaera and Cyanothece

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