Studies on picophytoplankton in the southern Gulf of Mexico: pigment analysis and potential importance of the picoeukaryote Prasinophyte<i>Micromonas pusilla</i>

Hernández‐Becerril, David U.; Aquino-Cruz, Aldo; Salas‐de‐León, David Alberto; Signoret-Poillon, Martha; Monreal‐Gómez, María Adela

doi:10.1080/17451000.2011.638639

Cited by 12 publications

(7 citation statements)

References 43 publications

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“…In our study, we also found higher abundance of Micromonas in the relatively nutrient-rich slope waters. However, unlike other reports (Not et al 2004, Hernández-Becerril et al 2012, Micromonas abundance was unexpectedly lower in coastal re gions (Fig. 3).…”

Section: Abundance and Biodiversity Of Major Ppescontrasting

confidence: 96%

“…Within the Mamiellophyceae, species in the genus Micromonas are found to be abundant in many different areas, such as the western English Channel (Not et al 2004), the Norwegian and Barents Seas (Not et al 2005) and the Beaufort Sea (Balzano et al 2012), and have even been found to bloom occasionally in the open ocean (Treusch et al 2012). As a ubiquitous genus (Šlapeta et al 2006), Micromonas is also present in quite distinct regions, including the southern Gulf of Mexico (Hernández-Becerril et al 2012), the Mediterranean Sea (Marie et al 2006), the Indian Ocean (Not et al 2008) and the Arctic Ocean (Lovejoy et al 2007). In our study, we also found higher abundance of Micromonas in the relatively nutrient-rich slope waters.…”

Section: Abundance and Biodiversity Of Major Ppesmentioning

confidence: 99%

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Photosynthetic picoeukaryote assemblages in the South China Sea from the Pearl River estuary to the SEATS station

Wu¹,

Huang

Zhong³

2014

Aquat. Microb. Ecol.

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Photosynthetic picoeukaryotes (PPEs) can be important primary producers in the oligotrophic ocean and coastal waters at certain times of the year. In this study, we investigated the abundance and biodiversity of picoplankton, focusing on PPEs in the South China Sea (SCS) from the Pearl River estuary to SCS basin in January 2010, when the northeast monsoon prevailed. PPE abundance was quantified using fluorescent in situ hybridization associated tyramide signal amplification, and the biodiversity at 5 selected stations was determined using small subunit ribosomal RNA gene (18S rDNA) clone libraries. Our results showed that PPEs were most abundant in the Pearl River estuary (up to 8500 cells ml −1), and that mamiellophycean picoplanktonic green algae, such as Micromonas, Ostreococcus and Bathycoccus, showed peaks of abundance in slope or coastal waters. The 18S rDNA phylogeny revealed that most of the PPEs belonged to prasinophytes, affiliating to 4 clades (Clade IX, Clade V, Clade VII, and Mamiellophyceae). Phytoplankton pigment analysis clearly showed the difference in picophytoplankton community structure along the environmental gradient provided by the selected stations. Among the PPEs, prasinophytes and prymnesiophytes accounted for 18.7 and 41.5%, respectively, of the chlorophyll a biomass. Putting all the data together, we describe a complete picture of PPE assemblages along the coast-offshore gradient, showing that the prasinophytes and prymnesiophytes appear to be the key PPE components in this subtropical-tropical marginal sea.

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Section: Abundance and Biodiversity Of Major Ppescontrasting

confidence: 96%

Section: Abundance and Biodiversity Of Major Ppesmentioning

confidence: 99%

Photosynthetic picoeukaryote assemblages in the South China Sea from the Pearl River estuary to the SEATS station

Wu¹,

Huang

Zhong³

2014

Aquat. Microb. Ecol.

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“…Recent studies have shown the importance of pelagophyte subsurface populations , in some cases accounting for as much as 40% of the total picoeukaryote populations at depth. Besides pelagophytes, prasinophytes belonging to Micro monas and Bathycoccus have also been found to be an important member of picoeukaryote populations at CFM depths and deeper waters of the Gulf of Mexico (Paul et al 2000, Hernandez-Becerril et al 2012. Our results are also consistent with Steinberg et al (2001) and Claustre & Marty (1995), who found the above phytoplankton groups to be a significant part of the community in the chlorophyll maximum and deep populations in the subtropical and tropical North Atlantic.…”

Section: Cfm and Deep Watersupporting

confidence: 81%

Phytoplankton community structure in the river‑influenced continental margin of the northern Gulf of Mexico

Chakraborty¹,

Lohrenz

2015

Mar. Ecol. Prog. Ser.

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Phytoplankton community composition was characterized over varying seasonal and river discharge conditions during 5 research cruises across the continental margin of the northern Gulf of Mexico (NGOM). The spatial and temporal patterns of variation in the composition of the algal community were examined using high performance liquid chromatography (HPLC) analyses of phytoplankton pigments in conjunction with classification using the CHEMTAX software (v.1.95). Cluster analysis and principal component analysis were used to identify different regimes and to understand the relationship of the phytoplankton community to biological and environmental variables. The large river dominated margin of the NGOM was characterized by (1) an estuarine and inner shelf regime dominated by diatoms, cryptophytes, cyanobacteria, and chlorophytes; (2) midshelf waters, a transition zone between coastal river-influenced and oligotrophic slope waters, associated with a mixed phytoplankton composition; and (3) a slope water regime typical of oligotrophic ocean conditions with a surface community dominated by cyanobacteria, haptophytes, and prochlorophytes. A chlorophyll fluorescence maximum (CFM) was a regular feature at offshore stations and showed significant differences from that of surface waters in seasonal variability of phytoplankton pigment ratios and community composition. Our findings support the view that large river outflows, along with other environmental variables such as wind forcing and stratification, have a profound influence on phytoplankton communities over a large regional extent in the continental margin waters of the NGOM.

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“…En aguas mexicanas de ambos litorales se han reconocido especies de los géneros Prochlorococcus y Synechococcus, tanto por observaciones directas en microscopio, como por el uso de ciertos equipos (citometría de flujo, HPLC) (Hernández-Becerril et al, 2012a) o de herramientas moleculares, así como las especies Richelia intracellularis y 3-4 especies del género Trichodesmium (Hernández-Becerril, 2003;Aldeco et al, 2009) (Fig. 8).…”

Section: Diversidadunclassified

“…En el Pacífico mexicano podemos contar las siguientes especies: Micromonas pusilla, Nephroselmis olivacea, Pyramimonas orientalis, P. cordata y Resultor mikron (López Tachiquín, 2002), mientras que hay evidencia de poblaciones importantes de Micromonas pusilla en el sur del Golfo de México (Hernández-Becerril et al, 2012a). Faltan muchos estudios detallados de este grupo en México, sobre todo de especies de Pyramimonas y de Prasinophyceae picoplanctónicos (Guillou et al, 2004).…”

Section: Diversidadunclassified

Biodiversidad de algas planctónicas marinas (Cyanobacteria, Prasinophyceae, Euglenophyta, Chrysophyceae, Dictyochophyceae, Eustigmatophyceae, Parmophyceae, Raphidophyceae, Bacillariophyta, Cryptophyta, Haptophyta, Dinoflagellata) en México

Hernández‐Becerril¹

2014

Revista Mexicana de Biodiversidad

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Studies on picophytoplankton in the southern Gulf of Mexico: pigment analysis and potential importance of the picoeukaryote PrasinophyteMicromonas pusilla

Cited by 12 publications

References 43 publications

Photosynthetic picoeukaryote assemblages in the South China Sea from the Pearl River estuary to the SEATS station

Photosynthetic picoeukaryote assemblages in the South China Sea from the Pearl River estuary to the SEATS station

Phytoplankton community structure in the river‑influenced continental margin of the northern Gulf of Mexico

Biodiversidad de algas planctónicas marinas (Cyanobacteria, Prasinophyceae, Euglenophyta, Chrysophyceae, Dictyochophyceae, Eustigmatophyceae, Parmophyceae, Raphidophyceae, Bacillariophyta, Cryptophyta, Haptophyta, Dinoflagellata) en México

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