Nitrogen uptake kinetics of Prymnesium parvum (Haptophyte)

Lindehoff, Elin; Granéli, Edna; Glibert, Patricia M.

doi:10.1016/j.hal.2011.09.001

Cited by 22 publications

(14 citation statements)

References 77 publications

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“…Prymnesium parvum is an invasive algae that first appeared in South Africa's Zandvlei Estuary during the 1970s and was associated with a mass fish kill in the system (Begg 1976). This algae releases toxins that cause internal and gill haemorrhaging in most fish and some invertebrate species, and it thrives in low estuarine salinities (0-10), temperatures of 2-30°C and a pH >7 (Watson 2001;Lindehoff et al 2011). Overall, P. parvum out-competes other algae by having wider physicochemical tolerances and it can also chemically inhibit the growth of those species (Granéli, 2006).…”

Section: Harmful Algal Bloomsmentioning

confidence: 99%

The role of pioneers as indicators of biogeographic range expansion caused by global change in southern African coastal waters

Whitfield

James

Lamberth³

et al. 2016

Estuarine, Coastal and Shelf Science

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The South African coastline is just over 3000 km in length yet it covers three major biogeographic regions, namely subtropical, warm temperate and cool temperate. In this review we examine published information to assess the possible role of climate change in driving distributional changes of a wide variety of organisms around the subcontinent. In particular we focus on harmful algal blooms, seaweeds, eelgrass, mangroves, salt marsh plants, foraminiferans, stromatolites, corals, squid, zooplankton, zoobenthos, fish, birds, crocodiles and hippopotamus, but also refer to biota such as pathogens, coralline algae, jellyfish and otters. The role of pioneers or propagules as indicators of an incipient range expansion are discussed, with mangroves, zoobenthos, fishes and birds providing the best examples of actual and imminent distributional changes. The contraction of the warm temperate biogeographic region, arising from the intrusion of cool upwelled waters along the Western Cape shores, and increasingly warm Agulhas Current waters penetrating along the eastern parts of the subcontinent, are highlighted. The above features provide an ideal setting for the monitoring of biotic drivers and responses to global climate change over different spatial and temporal scales, and have

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Section: Harmful Algal Bloomsmentioning

confidence: 99%

The role of pioneers as indicators of biogeographic range expansion caused by global change in southern African coastal waters

Whitfield

James

Lamberth³

et al. 2016

Estuarine, Coastal and Shelf Science

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“…Golden alga can also utilize organic nitrogen, perhaps as an adaptation to the marine environment from which it originates (Lindehoff et al ., ). More specifically, in marine environments, primary production is often limited by inorganic nitrogen, but organic nitrogen is typically abundant and can comprise between 60 and 80% of the total nitrogen in the system (Bronk, ; Lindehoff et al ., ). Some algal species can assimilate organic nitrogen, which increases the pool of available nutrients and provides a competitive advantage over algal species that cannot utilize organic nitrogen (Bronk et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Because golden alga can assimilate nitrogen from a variety of organic compounds, including particulate matter, Lindehoff et al . () hypothesize golden alga would have a competitive advantage in systems where inorganic nitrogen is limiting but organic nitrogen is replete; such conditions are present in the impacted reservoirs of the UCR. In the UCR, golden alga may be able to obtain sufficient nutrition from organic sources of nitrogen that allows the continuation of bloom conditions even if inorganic nutrients are at low levels.…”

Section: Discussionmentioning

confidence: 99%

“…Reduction of organic nitrogen may be an alternative strategy for golden alga control in UCR reservoirs. As discussed earlier, impacted reservoirs of the UCR are characterized by high organic nitrogen, which may provide a competitive advantage for golden alga as it can utilize organic nitrogen during inorganic nitrogen‐limited conditions (Lindehoff et al ., , ). High levels of organic nutrients have also been suspected to contribute to golden alga bloom formation in Lake Diversion, located in the Red River basin in Texas (Kurten et al ., ).…”

Section: Discussionmentioning

confidence: 99%

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Spatiotemporal Associations of Reservoir Nutrient Characteristics and the Invasive, Harmful Alga Prymnesium parvum in West Texas

VanLandeghem

Farooqi

Southard

et al. 2014

J American Water Resour Assoc

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Golden alga (Prymnesium parvum) is a harmful alga that has caused ecological and economic harm in freshwater and marine systems worldwide. In inland systems of North America, toxic blooms have nearly eliminated fish populations in some systems. Modifying nutrient profiles through alterations to land or water use may be a viable alternative for golden alga control in reservoirs. The main objective of this study was to improve our understanding of the nutrient dynamics that influence golden alga bloom formation and toxicity in west Texas reservoirs. We examined eight sites in the Upper Colorado River basin, Texas: three impacted reservoirs that have experienced repeated golden alga blooms; two reference reservoirs where golden alga is present but nontoxic; and three confluence sites downstream of the impacted and reference sites. Total, inorganic, and organic nitrogen and phosphorus and their ratios were quantified monthly along with golden alga abundance and ichthyotoxicity between December 2010 and July 2011. Blooms persisted for several months at the impacted sites, which were characterized by high organic nitrogen and low inorganic nitrogen. At impacted sites, abundance was positively associated with inorganic phosphorus and bloom termination coincided with increases in inorganic nitrogen and decreases in inorganic phosphorus in late spring. Management of both inorganic and organic forms of nutrients may create conditions in reservoirs unfavorable to golden alga. (KEY TERMS: algae; aquatic ecology; environmental impacts; nutrients.) VanLandeghem, Matthew M., Mukhtar Farooqi, Greg M. Southard, and Reynaldo Patiño, 2015. Spatiotemporal Associations of Reservoir Nutrient Characteristics and the Invasive, Harmful Alga Prymnesium parvum in West Texas.

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“…Tracer enrichment studies, in which isotope is often added at a level of ~ 10% of the ambient source (e.g., Dugdale and Goering ; Dugdale and Wilkerson ), have contributed extensively to our understanding of new and regenerated production, oceanic f ratios, i.e., that fraction of primary production fueled by NO 3 (e.g., Eppley and Peterson ), understanding of relative preferences (e.g., McCarthy et al ; Glibert et al ; Smith and Nelson ), and relationships between the uptake of different N forms and phytoplankton community composition (e.g., Lomas and Glibert ; McCarthy ; Berg et al ; Glibert et al ). Tracer enrichment studies have also contributed substantially to characterization of physiological parameters such as nutrient kinetic relationships (e.g., Goldman and Glibert ; McCarthy et al ; Collos et al ; Lomas and Glibert ; Kudela and Cochlan ; Fan et al ; Cochlan et al ; Li et al ; Lindehoff et al ), and in the understanding and quantification of processes such as NH 4 repression of NO 3 assimilation (e.g., Wheeler and Kokkinakis ; Dugdale et al ; L'Helguen et al ; Glibert et al , ).…”

Section: A Deeper Dive: Insights From Classic To Cutting‐edge Isotopementioning

confidence: 99%

Stable isotope tracers: Enriching our perspectives and questions on sources, fates, rates, and pathways of major elements in aquatic systems

Glibert

Middelburg

McClelland

et al. 2018

Limnology & Oceanography

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Stable isotope applications have evolved from simple characterizations of isotope composition in organisms and organic matter, to highly complex methodologies on scales ranging from individual compounds and cells, to broad ecosystem-level approaches. New techniques are rapidly evolving, allowing novel, difficult, and inconvenient questions to be addressed. This article aims to provide an overarching perspective on how the field has evolved and where it is going with regard to aquatic systems, some of the oceanographic and limnological concepts derived from these approaches, and important challenges. To this end, we highlight a selection of natural abundance and tracer enrichment studies that represent a wide range of stable isotope applications. These include studies of rate processes and biogeochemical cycling, source tracking, food webs, and paleoenvironments. Our coverage of stable isotope applications is by no means complete, but by highlighting a mixture of classic and new applications across a wide range of research areas, our goal is to convey the power of stable isotope tools and the excitement in this rapidly expanding field, while also encouraging the scrutiny and healthy respect for limitations and assumptions necessary to take full advantage of these powerful tools. Basic principlesKinetic isotope effects underlie many of the differences in stable isotope ratios that we observe among ecosystem

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Nitrogen uptake kinetics of Prymnesium parvum (Haptophyte)

Cited by 22 publications

References 77 publications

The role of pioneers as indicators of biogeographic range expansion caused by global change in southern African coastal waters

The role of pioneers as indicators of biogeographic range expansion caused by global change in southern African coastal waters

Spatiotemporal Associations of Reservoir Nutrient Characteristics and the Invasive, Harmful Alga Prymnesium parvum in West Texas

Stable isotope tracers: Enriching our perspectives and questions on sources, fates, rates, and pathways of major elements in aquatic systems

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