Some observations on harmful algal bloom (HAB) events along the coast of Guangdong, southern China in 1998

Qi, Yuzao; Chen, Jufang; Wang, Zhaohui; Xu, Ning; Wang, Yan; Shen, Pingping; Lü, Songhui; Hodgkiss, I.J.

doi:10.1023/b:hydr.0000020329.06666.8c

Cited by 122 publications

(70 citation statements)

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“…also showed detrimental effects to growth and reproduction of shellfi sh (Prins et al, 1994;Smaal and Twisk, 1997). Recently, Phaeocystis globosa formed large-scale blooms along the coast of China (Chen et al, 2002;Qi et al, 2004), and blooms over 1 000 km 2 were found in the Laizhou Bay and Bohai Bay of the Bohai Sea in June, 2004and October, 2006, respectively (State Oceanic Administration, 2005. In the Phaeocystis blooms recorded so far in the coastal waters of China, Phaeocystis colonies always occur during the blooms.…”

Section: Comparison Of the Bloom Features In Qinhuangdao With "Brown mentioning

confidence: 99%

Pigment characterization for the 2011 bloom in Qinhuangdao implicated “brown tide” events in China

Kong

Zhang

et al. 2012

Chin. J. Ocean. Limnol.

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A large-scale bloom occurred from May to June in 2011 in sea area near Qinhuangdao of the Bohai Sea, leading to huge damage of the scallop culture industry. Similar blooms have been observed in this region for three years. The causative species of the bloom, which dominated the phytoplankton community with the maximum cell density around 10 9 cell/L, could not be identifi ed with morphological features due to the small cell size (~2 m m). A pigment analytical method was then adopted to analyze the pigment profi le of the phytoplankton samples collected from the blooming sea area. It was found that pico-sized (<2 m m), nano-sized (2-20 m m), and bulk phytoplankton samples had similar pigment profi le, representing the pigment signature of the bloom-causative species. The major pigments detected included 19-butanoyloxyfucoxanthin (But-fuco), fucoxanthin (Fuco), diadinoxanthin (Diad) and chlorophyll a (Chl a ), and high content of But-fuco was the most signifi cant characteristics of the phytoplankton samples. Based on the pigment composition and content, the bloom-causative species could be tentatively identifi ed as pelagophyte, "type 8" group of haptophyte, or silicofl agellate. Some unique features of the bloom, such as the extremely high cell density, small-sized and But-fuco containing cells, occurring in early summer, and the feeding-cessation effects on scallops, suggest it be a "brown tide" event similar to those reported in the east coast of the United States of America. The recurrent "brown tide" events and their dramatic impacts on the shellfi sh mariculture industry in Qinhuangdao need close attention in the coming years.

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Section: Comparison Of the Bloom Features In Qinhuangdao With "Brown mentioning

confidence: 99%

Pigment characterization for the 2011 bloom in Qinhuangdao implicated “brown tide” events in China

Kong

Zhang

et al. 2012

Chin. J. Ocean. Limnol.

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“…A further study confi rmed that the causative species could produce hemolytic toxins, which were probably responsible for the massive fi sh kills (He et al, 1999). The causative organism was identifi ed as Phaeocystis globosa rather than Phaeocystis pouchetii or other species, based on microscopic morphological observations, culturing behavior, physiological characteristics and sequence analysis of its partial 18S rDNA (Shen et al, 2000;Wang et al, 2000;Chen et al, 2002;Xu et al, 2003;Qi et al, 2004). During the following decade, P .…”

Section: Introductionmentioning

confidence: 99%

“…Owing to its frequent occurrence, broad spread and severe damage to fi sheries, tourism and marine ecosystems in the past decade, P . globosa is thought to be one of the most important harmful algal bloom causative species in China (Qi et al, 2004;Wang et al, 2007;Liu et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea

Huang

et al. 2016

Chin. J. Ocean. Limnol.

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Blooms of Phaeocystis globosa have been frequently reported in Chinese coastal waters, causing serious damage to marine ecosystems. To better understand the ecological characteristics of P . globosa in Chinese coastal waters that facilitate its rapid expansion, the eff ects of temperature, salinity and irradiance on the growth of P . globosa from the South China Sea were examined in the laboratory. The saturating irradiance for the growth of P . globosa ( I s ) was 60 μmol/(m 2 •s), which was lower than those of other harmful algal species (70-114 μmol/(m 2 •s)). A moderate growth rate of 0.22/d was observed at 2 μmol/ (m 2 •s) (the minimum irradiance in the experiment), and photo-inhibition did not occur at 230 μmol/(m 2 •s) (the maximum irradiance in the experiment). Exposed to 42 diff erent combinations of temperatures (10-31°C) and salinities (10-40) under saturating irradiance, P . globosa exhibited its maximum specifi c growth rate of 0.80/d at the combinations of 24°C and 35, and 27°C and 40. The optimum growth rates (>0.80/d) were observed at temperatures ranging from 24 to 27°C and salinities from 35 to 40. While P . globosa was able to grow well at temperatures from 20°C to 31°C and salinities from 20 to 40, it could not grow at temperatures lower than 15°C or salinities lower than 15. Factorial analysis revealed that temperature and salinity has similar infl uences on the growth of this species. This strain of P . globosa not only prefers higher temperatures and higher salinity, but also possesses a fl exible nutrient competing strategy, adapted to lower irradiance. Therefore, the P . globosa population from South China Sea should belong to a new ecotype. There is also a potentially high risk of blooms developing in this area throughout the year.

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“…Massive mortality and devastating diseases as well as HABs in marine farms have already hampered the sustainable development of the marine-culture industry (Qi et al, 2004). The understanding of historical HAB distribution and concentration in the South China Sea offers a basis for urgent management measures required to mitigate deteriorating coastal water quality and the adverse environmental impacts on aquaculture development (Chua et al, 1989;FAO/ NACA, 1995).…”

Section: Introductionmentioning

confidence: 99%

“…About half of the coastal population's protein intake comes from the sea (Roseberg, 1999). The problems of environmental pollution around the SCS are primarily due to population growth and urbanization in coastal cities, economic growth and increased material consumption, and highly polluting technol- In the SCS, HABs have caused mass mortality of fishes and other ecosystem impacts (Qi et al, 2004;Xia & Wu, 1996;Tang et al, 2003a, b) in the past 20 years. For example, in November 1997, HABs off Raoping (Guangdong province, China) led to an estimated economic loss more than US$8 million (Qi et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Occurrences of harmful algal blooms (HABs) associated with ocean environments in the South China Sea

et al. 2007

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Some observations on harmful algal bloom (HAB) events along the coast of Guangdong, southern China in 1998

Cited by 122 publications

References 0 publications

Pigment characterization for the 2011 bloom in Qinhuangdao implicated “brown tide” events in China

Pigment characterization for the 2011 bloom in Qinhuangdao implicated “brown tide” events in China

Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea

Occurrences of harmful algal blooms (HABs) associated with ocean environments in the South China Sea

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