The growth dynamics of Karenia brevis within discrete blooms on the West Florida Shelf

Redalje, Donald G.; Lohrenz, Steven E.; Natter, M.J.; Tuel, Merritt; Kirkpatrick, Gary J.; Millie, David F.; Fahnenstiel, Gary L.; Dolah, Frances M. Van

doi:10.1016/j.csr.2007.04.011

Cited by 13 publications

(13 citation statements)

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“…Similarly, stimulatory effects of exudates to other phytoplankters have been observed with cyanobacteria and dinoflagellates that otherwise are considered allelopathic groups (Suikkanen et al 2005;Poulson et al 2010;Neisch et al 2012). Succession during some allelopathic blooms is complex, with observed co-dominance of species (Lindholm et al 1999;Redalje et al 2008) and persistence of multiple sub-dominant species (West et al 1996;de Figueiredo et al 2006). This variation of exuded chemical effects spotlights our limited understanding of allelopathic functioning in ecosystems.…”

Section: Introductionmentioning

confidence: 93%

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Resisting annihilation: relationships between functional trait dissimilarity, assemblage competitive power and allelopathy

et al. 2018

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Allelopathic species can alter biodiversity. Using simulated assemblages that are characterised by neutrality, lumpy coexistence and intransitivity, we explore relationships between within-assemblage competitive dissimilarities and resistance to allelopathic species. An emergent behaviour from our models is that assemblages are more resistant to allelopathy when members strongly compete exploitatively (high competitive power). We found that neutral assemblages were the most vulnerable to allelopathic species, followed by lumpy and then by intransitive assemblages. We find support for our modeling in real-world time-series data from eight lakes of varied morphometry and trophic state. Our analysis of this data shows that a lake's history of allelopathic phytoplankton species biovolume density and dominance is related to the number of species clusters occurring in the plankton assemblages of those lakes, an emergent trend similar to that of our modeling. We suggest that an assemblage's competitive power determines its allelopathy resistance.

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Section: Introductionmentioning

confidence: 93%

“…; Redalje et al . ) and persistence of multiple sub‐dominant species (West et al . ; de Figueiredo et al .…”

Section: Introductionmentioning

confidence: 99%

Resisting annihilation: relationships between functional trait dissimilarity, assemblage competitive power and allelopathy

et al. 2018

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“…Primary productivity rates on the order of 1 to >5 gC m −2 day −1 are characteristic of K. brevis blooms when autotrophic carbon fixation is determined with 14 C methodology (Redalje et al, 2008; Vargo, 2009). Carbon-specific growth rates of surface populations within K. brevis blooms vary from <0.1 (2001 bloom), to rates >0.5 day −1 in a 1999 bloom (Table 3, Redalje et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Carbon-specific growth rates of surface populations within K. brevis blooms vary from <0.1 (2001 bloom), to rates >0.5 day −1 in a 1999 bloom (Table 3, Redalje et al, 2008). The relatively low growth rates suggest that although primary production rates are high, the net carbon fixation can sustain populations that divide once every few days.…”

Section: Introductionmentioning

confidence: 99%

Net community production and dark community respiration in a Karenia brevis (Davis) bloom in West Florida coastal waters, USA

et al. 2010

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Oxygen-based productivity and respiration rates were determined in West Florida coastal waters to evaluate the proportion of community respiration demands met by autotrophic production within a harmful algal bloom dominated by Karenia brevis. The field program was adaptive in that sampling during the 2006 bloom occurred where surveys by the Florida Wildlife Research Institute indicated locations with high cell abundances. Net community production (NCP) rates from light-dark bottle incubations during the bloom ranged from 10 to 42 µmole O2 L−1 day−1 with highest rates in bloom waters where abundances exceeded 105 cells L−1. Community dark respiration (R) rates in dark bottles ranged from <10 to 70 µmole O2 L−1 day−1 over 24 h. Gross primary production derived from the sum of NCP and R varied from ca. 20 to 120 µmole O2 L−1 day−1. The proportion of GPP attributed to NCP varied with the magnitude of R during day and night periods. Most surface communities exhibited net autotrophic production (NCP > R) over 24 h, although heterotrophy (NCP < R) characterized the densest sample where K. brevis cell densities exceed 106 cells L−1.

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“…However, some picoplankton (less than 2 µm) cannot be identified by microscopy. Marker pigments can identify most of the phytoplankton taxa, including different groups of autotrophic nanoplankton and picoplankton and fragile cells, which can be overlooked during microscopic counting [9]. Some researches reported that the difference in measurement results of HPLC and microscope was less than 6% [1].…”

Section: Introductionmentioning

confidence: 99%

Freshwater algae chemotaxonomy by high-performance liquid chromatographic (HPLC) analysis

Hou

Liang

Zhang

et al. 2011

Front. Environ. Sci. Eng. China

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The study of community composition of algae is essential for understanding the structure and dynamics of the aquatic ecosystem and for evaluating the eutrophic level of the water body. A high-performance liquid chromatographic (HPLC) method based on a reversephase C 18 nonpolar column was developed for the main algal taxa, which includes cyanophytes, bacillariophytes, euglenophytes, dinophytes, and chlorophytes. Based on the elution order using HPLC, 19 pigments were identified, and they were chlorophyllide a, 19′-butanoyloxyfucoxanthin, chlorophyll c 1 + c 2 , phephorbides a, peridinin, methyl-chlorophyllide a, fucoxanthin, neoxanthin, violaxanthin, myxoxanthophyll, diadinoxanthin, diatoxanthin, lutein, zeaxanthin, chlorophyll b allomer, chlorophyll b, chlorophyll a allomer, chlorophyll a, and β,β-carotene. A comparison study of cell microscopic counts and accessory pigment analysis indicated that HPLC analysis could be a useful tool for monitoring phytoplankton communities and their abundance.

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The growth dynamics of Karenia brevis within discrete blooms on the West Florida Shelf

Cited by 13 publications

References 51 publications

Resisting annihilation: relationships between functional trait dissimilarity, assemblage competitive power and allelopathy

Resisting annihilation: relationships between functional trait dissimilarity, assemblage competitive power and allelopathy

Net community production and dark community respiration in a Karenia brevis (Davis) bloom in West Florida coastal waters, USA

Freshwater algae chemotaxonomy by high-performance liquid chromatographic (HPLC) analysis

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