Emergence of brown tides caused by Aureococcus anophagefferens Hargraves et Sieburth in China

Zhang, Qing‐Chun; Qiu, Limei; Yu, Rencheng; Kong, Fan‐Zhou; Wang, Yunfeng; Tian, Yun; Gobler, Christopher J.; Zhou, Meng

doi:10.1016/j.hal.2012.06.007

Cited by 122 publications

(57 citation statements)

References 26 publications

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“…The first occurrence of brown tide was documented in the U.S.A. in New York and Rhode Island in 1985 and resulted in a mass die-off of eelgrass (Zostera marina; Cosper et al 1989) and shellfish populations (Gobler et al 2005). Since 1985, brown tides have recurred almost annually in the different bays on eastern and southern Long Island, New York, and have expanded southward to New Jersey, Delaware, Maryland, and Virginia and across the globe to South Africa (Gobler et al 2005) and China (Zhang et al 2012). A. anophagefferens seems to gain competitive advantage over other phytoplankton by resisting grazing by zooplankton (Gobler et al 2002;Caron et al 2004;Deonarine et al 2006) and bivalves (Bricelj et al 2001) and exhibiting nutritional flexibility, being able to utilize a variety of nitrogenous compounds for growth .…”

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confidence: 99%

Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Koch

Sañudo‐Wilhelmy

Fisher

et al. 2013

Limnology & Oceanography

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Most harmful algae require B vitamins. We investigated vitamin use by the B 1 and B 12 auxotroph, Aureococcus anophagefferens, a harmful alga that dominates plankton communities during dense ''brown tides'' in North America, Africa, and Asia. B 12 -depleted cultures of A. anophagefferens (clone CCMP1984) adapted to lower ambient B 12 concentrations by reducing half-saturation constants (K s ) of B 12 uptake and increasing maximum uptake rates (V max ) compared to vitamin-replete cultures. In contrast, V max of vitamin B 1 was higher in replete compared to the depleted cultures, whereas the K s values were similar for both. K s values for B 12 (5.0-21 pmol L 21 ) were similar to or higher than concentrations measured during brown tides, suggesting that B 12 may restrict the growth of this alga in the field. Over the course of a dense brown tide (. 10 6 cells mL 21 ) in Quantuck Bay, New York, vitamin B 1 and B 12 concentrations declined from . 100 pmol L 21 to , 8 pmol L 21 , suggesting there was rapid uptake by A. anophagefferens and its associated microbial community. Experiments performed using radioisotope-labeled vitamins B 1 and B 12 and 14 C-bicarbonate indicated that plankton in the size range of A. anophagefferens (1-5 mm) were responsible for the majority of primary production and the majority of vitamin B 1 uptake but shared vitamin B 12 uptake with smaller picoplankton (, 1 mm). Vitamin uptake rates during the brown tide were capable of turning over standing stocks of vitamin B 12 in 15 h, whereas B 1 depletion was slower with maximal turnover times of 2.8 d. As the brown tide intensified and vitamin B 12 levels declined, the experimental enrichment of brown tide water with vitamin B 12 significantly enhanced the growth rates of A. anophagefferens. Collectively, this study demonstrates that vitamin B 12 can influence the intensity of harmful algal blooms caused by A. anophagefferens.

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confidence: 99%

Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Koch

Sañudo‐Wilhelmy

Fisher

et al. 2013

Limnology & Oceanography

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“…Brown tides in China have been linked to turbidity, dissolved organic carbon and metals exports which have been partly linked to intensification of agriculture (Gobler et al, 2011;Qiu, 2012;Zhang et al, 2012a). In the Aral Sea basin in Central Asia, over-extraction of water for irrigation caused a 75% decline in the lake volume between 1960 and 1995, and an increase in salinity of the lake and land leading to large-scale abandonment of agricultural land use and poor life expectancy, health and drinking water supply (www.fao.org/nr/water/aquastat, Accessed 18/11/2012).…”

Section: Impacts Of Agriculturementioning

confidence: 99%

Land Use: Catchment Management

Melland

Jordan

Murphy

et al. 2014

Encyclopedia of Agriculture and Food Systems

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Poor water quality in lakes, rivers, estuaries and groundwater can be attributed to indirect effects of agricultural land use. Land management practices that lead to excess nutrients, sediment, pathogens and agrochemicals reaching waterbodies, or that negatively affect the hydrology, habitat and structure of waterbodies, can degrade water quality. This chapter describes farm and landscape management practices that can potentially prevent or mitigate adverse water quality impacts. Some examples of improved catchment water quality in response to changes in agricultural management are reported. Challenges associated with collecting evidence of the effects of agricultural management on water quality at the catchment scale, the potential for pollution-swapping, the cost-effectiveness of mitigation practices and approaches to governance of water quality management are also discussed. 2

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“…The latest public report from the National Bureau of Oceanography revealed that 73 blooms occurred in the China Sea, which caused a great economic loss of more than $ 300 million (http://www.soa.gov.cn/zwgk/hygb/zghyzhgb/zhgb/201303/ t20130306_24229.html). An increasing number of microalgal species have been discovered to form blooms along the Chinese coast; in particular, 29 species of toxic phytoplankton have been recorded (Zhang et al, 2012;Dai et al, 2014). For example, Aureococcus anophagefferens and Karlodinium veneficum have been recently identified as bloom-forming species in China (Zhang et al, 2012;Dai et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Development and evaluation of a reverse dot blot assay for the simultaneous detection of common toxic microalgae along the Chinese coast

et al. 2015

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Emergence of brown tides caused by Aureococcus anophagefferens Hargraves et Sieburth in China

Cited by 122 publications

References 26 publications

Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Land Use: Catchment Management

Development and evaluation of a reverse dot blot assay for the simultaneous detection of common toxic microalgae along the Chinese coast

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Emergence of brown tides caused by Aureococcus anophagefferens Hargraves et Sieburth in China

Cited by 122 publications

References 26 publications

Effect of vitamins B1 and B12 on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Effect of vitamins B1 and B12 on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Land Use: Catchment Management

Development and evaluation of a reverse dot blot assay for the simultaneous detection of common toxic microalgae along the Chinese coast

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Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)

Effect of vitamins B₁ and B₁₂ on bloom dynamics of the harmful brown tide alga, Aureococcus anophagefferens (Pelagophyceae)