Variations of morphology and photosynthetic performances of Ulva prolifera during the whole green tide blooming process in the Yellow Sea

Zhang, Jian Heng; Huo, Yuan Zi; Zhang, Zheng Long; Yu, Ke Feng; He, Qing; Zhang, Lin Hui; Li, Yang; Xu, Ran; He, Pei Min

doi:10.1016/j.marenvres.2013.08.009

Cited by 71 publications

(27 citation statements)

References 45 publications

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“…Considerando, que solo en 2015 en el puerto de Iquique recalaron 460 buques (Empresa Portuaria Iquique 2017) 2 , incluyendo cargueros asiáticos, se podría considerar como el vector más probable de introducción. Además, U. australis posee características biológicas que le permiten ser transportada en el fouling o agua de lastre, como es el gran potencial reproductivo y alta tolerancia a cambios ambientales (Einav et al 1995, Kim et al 2004 Ulva australis es una especie que ocasionalmente forma 'mareas verdes' o 'blooms' de algas (Hiraoka et al 2004, Zhang et al 2013. Su rápido crecimiento y alta capacidad reproductiva facilitan la acumulación de biomasa, que ocurre principalmente por la eutrofización del ambiente debido a actividades antropogénicas (Park 2014).…”

Section: Resultados Y Discusión Análisis Molecularunclassified

“…La taxonomía tradicional de Ulva se ha basado en características morfológicas como la forma y tamaño del talo, presencia/ausencia de dientes marginales, dimensiones celulares y número de pirenoides (Guiry & Guiry 2017). Sin embargo, muchos estudios han demostrado que estas características son altamente variables (Zhang et al 2013, Wichard et al 2015, Gao et al 2016, por lo que la identificación a nivel de especies ha sido particularmente difícil debido a la alta variabilidad morfológica y plasticidad fenotípica intraespecífica. En ese contexto, es fundamental el uso de herramientas complementarias como las técnicas moleculares, las cuales han tenido éxito en identificación de especies de Ulva (Baamondes et al 2007, Aguilar-Rosas et al 2008).…”

Section: Introductionunclassified

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Nuevo registro de Ulva australis (Ulvaceae, Chlorophyta) en el norte de Chile

Oróstica

Calderón

Boo

et al. 2017

Rev. biol. mar. oceanogr.

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Section: Resultados Y Discusión Análisis Molecularunclassified

Section: Introductionunclassified

Nuevo registro de Ulva australis (Ulvaceae, Chlorophyta) en el norte de Chile

Oróstica

Calderón

Boo

et al. 2017

Rev. biol. mar. oceanogr.

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“…However, the free-floating macroalgae appeared again during the Olympic Games in 2008, covering approximately 13,000-30,000 km 2 and posing a great threat to the Olympic sailing competition [2]. With intensive efforts, over 16,000 people and 600 boats were organized to clean up the coastal water for sailing training, resulting in substantial economic losses [2][3][4][5]. Since then, the world's largest macroalgal bloom has become a continuous phenomenon in the southern waters of the Yellow Sea, and it has attracted great attention for marine researchers.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Patterns and Morphological Characteristics of Ulva prolifera Distribution in the Yellow Sea, China in 2016–2018

Cao

Fang

et al. 2019

Remote Sensing

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The world’s largest macroalgal blooms, Ulva prolifera, have appeared in the Yellow Sea every summer on different scales since 2007, causing great harm to the regional marine economy. In this study, the Normalized Difference of Vegetation Index (NDVI) index was used to extract the green tide of Ulva prolifera from MODIS images in the Yellow Sea in 2016–2018, to investigate its spatiotemporal patterns and to calculate its occurrence probability. Using the standard deviational ellipse (SDE), the morphological characteristics of the green tide, including directionality and regularity, were analyzed. The results showed that the largest distribution and coverage areas occurred in 2016, with 57,384 km2 and 2906 km2, respectively and that the total affected region during three years was 163,162 km2. The green tide drifted northward and died out near Qingdao, Shandong Province, which was found to be a high-risk region. The coast of Jiangsu Province was believed to be the source of Ulva prolifera, but it was probably not the only one. The regularity of the boundary shape of the distribution showed a change that was opposite to the variation of scale. Several sharp increases were found in the parameters of the SDE in all three years. In conclusion, the overall situation of Ulva prolifera was still severe in recent years, and the sea area near Qingdao became the worst hit area of the green tide event. It was also shown that the sea surface wind played an important part in its migration and morphological changes.

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“…Green tides formed by some green algae excessive growth has been reported in in many parts of the world, including Europe, America, Australia, and Asia (Taylor et al 2001 ; Nelson et al 2003 , 2008 ; Sun et al 2008 ; Yabe et al 2009 ; Kim et al 2010 ; Zhang et al 2013 ; Wang et al 2012 ). In nutrient-rich habitats green algae grow rapidly and often cause marine fouling.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of the photosynthetic capacity in two green tide macroalgae using chlorophyll fluorescence

Wang

Zhao

et al. 2016

SpringerPlus

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Green tides have occurred in the Yellow Sea, China, every year from 2007 to 2015. The free-floating Ulva prolifera (Müller) J. Agardh was the causative macroalgal species. The co-occurring, attached U. intestinalis was also observed. Photosynthetic capacities were determined using chlorophyll fluorescence in situ and after 7 days lab acclimation, and a significant differences were noted. Pigment composition showed no obvious differences, but concentrations varied significantly, especially chlorophyll b in U. prolifera two times increase was observed after acclimation. The optimal photochemical efficiency of PS II (Fv/Fm) was significantly higher in U. prolifera. Photosynthetic rate (α), maximum relative electron transport rate (rETRmax), and minimum saturating irradiance (Ek), obtained from rapid light response curves (RLCs), showed almost the same photosynthetic physiological status as Fv/Fm. Quenching coefficients and low temperature (77 K) chlorophyll fluorescence emission spectra of thylakoid membranes analysis showed U. prolifera has a better recovery activity and plasticity of PSII than U. intestinalis. Furthermore, energy dissipation via non-photochemical quenching (NPQ) and state transitions showed efficacious photoprotection solution especially in U. prolifera suffered from the severe stresses. Results in the present study suggested that U. prolifera’s higher photosynthetic capacity would contribute to its free-floating proliferation, and efficacious photoprotection in addition to favorable oceanographic conditions and high nutrient levels support its growth and aggregation.

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Variations of morphology and photosynthetic performances of Ulva prolifera during the whole green tide blooming process in the Yellow Sea

Cited by 71 publications

References 45 publications

Nuevo registro de Ulva australis (Ulvaceae, Chlorophyta) en el norte de Chile

Nuevo registro de Ulva australis (Ulvaceae, Chlorophyta) en el norte de Chile

Spatiotemporal Patterns and Morphological Characteristics of Ulva prolifera Distribution in the Yellow Sea, China in 2016–2018

A comparative study of the photosynthetic capacity in two green tide macroalgae using chlorophyll fluorescence

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