Phytoplankton group-specific and community responses to co-limiting nutrients in a managed reservoir: Lake Murray, South Carolina DOI

Haley Durbin,

A. J. Cain,

Gavin Madgett

et al.

Journal of Plankton Research, Journal Year: 2025, Volume and Issue: 47(2)

Published: Feb. 22, 2025

Abstract Eutrophication is increasingly becoming a problem for freshwater lakes. We evaluated the effects of additions nitrate (N as NO3−) and phosphate (P PO43−) on phytoplankton in temperate lake reservoir (Lake Murray, South Carolina). High-performance liquid chromatography ChemTax were used to measure concentrations microalgal groups 2021–2023 bioassays. The community during summer months consisted green algae (37%), diatoms (27%), cryptophytes (20%), cyanobacteria (11%) dinoflagellates (4%). Bioassays N (20-μM NaNO3), P (10-μM KH2PO4) + conducted monthly from April October 2023. All groups, except cyanobacteria, exhibited nutrient co-limitation with primary limiting nutrient. Similarly, co-limitation, but Nutrient (but not or singularly) also resulted significant shifts, strong response by algae. management implications this study are that increases loading ratio changes may result major toward dominance However, increasing relative promote cyanobacterial growth over other system.

Language: Английский

Eutrophication of Estuarine and Coastal Marine Environments: An Emerging Climatic-Driven Paradigm Shift DOI Open Access

Michael J. Kennish

Open Journal of Ecology, Journal Year: 2025, Volume and Issue: 15(04), P. 289 - 324

Published: Jan. 1, 2025

Language: Английский

Citations

1
Phytoplankton group-specific and community responses to co-limiting nutrients in a managed reservoir: Lake Murray, South Carolina DOI

Haley Durbin,

A. J. Cain,

Gavin Madgett

et al.

Journal of Plankton Research, Journal Year: 2025, Volume and Issue: 47(2)

Published: Feb. 22, 2025

Abstract Eutrophication is increasingly becoming a problem for freshwater lakes. We evaluated the effects of additions nitrate (N as NO3−) and phosphate (P PO43−) on phytoplankton in temperate lake reservoir (Lake Murray, South Carolina). High-performance liquid chromatography ChemTax were used to measure concentrations microalgal groups 2021–2023 bioassays. The community during summer months consisted green algae (37%), diatoms (27%), cryptophytes (20%), cyanobacteria (11%) dinoflagellates (4%). Bioassays N (20-μM NaNO3), P (10-μM KH2PO4) + conducted monthly from April October 2023. All groups, except cyanobacteria, exhibited nutrient co-limitation with primary limiting nutrient. Similarly, co-limitation, but Nutrient (but not or singularly) also resulted significant shifts, strong response by algae. management implications this study are that increases loading ratio changes may result major toward dominance However, increasing relative promote cyanobacterial growth over other system.

Language: Английский

Citations

0