Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea
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Redalyc · Ciencias Marinas
Environmental changes driven by intense human disturbance and natural processes govern the abundance and distribution characteristics of two picophytoplankton groups (Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cyto...
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| Publicado en: | Ciencias Marinas |
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Autónoma de Baja California
2014
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| _version_ | 1878325300111081472 |
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| author | Mei-Lin Wu |
| author_facet | Mei-Lin Wu |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Mei-Lin Wu Yu-Tu Wang You-Shao Wang Fu-Lin Sun Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton Environmental changes driven by intense human disturbance and natural pr ocesses govern the abu ndance and distribution characteristics of two picophytoplankton groups ( Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the au tumn monsoon transition period in Daya Ba y (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 10 4 to 1.45 × 10 5 cell mL –1 and from 0.78 × 10 3 to 7.95 × 10 3 cell mL –1 , respectively. The abundance of HDNA bact eria in surface water (mean: 5.58 × 10 5 cell mL –1 ) was greater than in bottom water (mean: 3.74 × 10 5 cell mL –1 ), with significant difference ( n = 12, P = 0.05). The difference in LDNA abundances betwee n surface (mean: 7.06 × 10 5 cell mL –1 ) and bottom (mean: 4.83 × 10 5 cell mL –1 ) waters was insignificant ( n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton ( Synechococcus and picoeukaryotes) and ba cteria (HDNA and LDNA) were positively related to nutrients (NO 3 -N, NH 4 -N, and SiO 3 -Si). Three subsystems in the ba y were identified as follows: the west and east parts, the central and northwest parts, a nd the mouth and central part. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48032071004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.40 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2436 10.7773/cm.v40i3.2436 |
| description | Environmental changes driven by intense human disturbance and natural processes govern the abundance and distribution characteristics of two picophytoplankton groups (Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the autumn monsoon transition period in Daya Bay (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 104 to 1.45 × 105 cell mL–1 and from 0.78 × 103 to 7.95 × 103 cell mL–1, respectively. The abundance of HDNA bacteria in surface water (mean: 5.58 × 105 cell mL–1) was greater than in bottom water (mean: 3.74 × 105 cell mL–1), with significant difference (n = 12, P = 0.05). The difference in LDNA abundances between surface (mean: 7.06 × 105 cell mL–1) and bottom (mean: 4.83 × 105 cell mL–1) waters was insignificant (n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton (Synechococcus and picoeukaryotes) and bacteria (HDNA and LDNA) were positively related to nutrients (NO3-N, NH4-N, and SiO3-Si). Three subsystems in the bay were identified as follows: the west and east parts, the central and northwest parts, and the mouth and central part.
Los cambios ambientales generados por las actividades humanas y los procesos naturales determinan las características de la distribución y abundancia de dos grupos de picofitoplancton (Synechococcus y picoeucariontes). Se evaluaron las comunidades de picofitoplancton y de bacterias con mayor (MaADN) y menor (MeADN) cantidad de ADN, identificadas mediante citometría de flujo, durante el periodo de transición intermonzónico en otoño en la bahía de Daya (mar de China Meridional). La abundancia de Synechococcus y picoeucariontes varió entre 2.16 × 104 y 1.45 × 105 cél mL–1 y entre 0.78 × 103 y 7.95 × 103 cél mL–1, respectivamente. La abundancia del grupo bacteriano de MaADN fue mayor en el agua superficial (media: 5.58 × 105 cél mL–1) que en el fondo de la bahía (media: 3.74 × 105 cél mL–1), con una diferencia significativa (n = 12, P = 0.05). No se observó una diferencia significativa entre la abundancia del grupo de MeADN en la superficie (media: 7.06 × 105 cél mL–1) y el fondo (media: 4.83 × 105 cél mL–1) (n = 12, P > 0.05). Un análisis de componentes principales mostró que ambos grupos de picofitoplancton (Synechococcus y picoeucariontes) y bacterias (MaADN y MeADN) se relacionaron positivamente con nutrientes (NO3-N, NH4-N y SiO3-Si). Se identificaron tres subsistemas en la bahía: las partes oeste y este, las partes central y noroeste, y la boca y parte central. |
| format | Artículo científico |
| id | redalyc_48032071004 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Influencia de cambios ambientales en picofitoplancton y bacterias en labahía de Daya, mar de China Meridional Wu, Meilin-Lin Wang, Yu-Tu Wang, You-Shao Sun, Fu-Lin Environmental changes driven by intense human disturbance and natural processes govern the abundance and distribution characteristics of two picophytoplankton groups (Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the autumn monsoon transition period in Daya Bay (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 104 to 1.45 × 105 cell mL–1 and from 0.78 × 103 to 7.95 × 103 cell mL–1, respectively. The abundance of HDNA bacteria in surface water (mean: 5.58 × 105 cell mL–1) was greater than in bottom water (mean: 3.74 × 105 cell mL–1), with significant difference (n = 12, P = 0.05). The difference in LDNA abundances between surface (mean: 7.06 × 105 cell mL–1) and bottom (mean: 4.83 × 105 cell mL–1) waters was insignificant (n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton (Synechococcus and picoeukaryotes) and bacteria (HDNA and LDNA) were positively related to nutrients (NO3-N, NH4-N, and SiO3-Si). Three subsystems in the bay were identified as follows: the west and east parts, the central and northwest parts, and the mouth and central part. Los cambios ambientales generados por las actividades humanas y los procesos naturales determinan las características de la distribución y abundancia de dos grupos de picofitoplancton (Synechococcus y picoeucariontes). Se evaluaron las comunidades de picofitoplancton y de bacterias con mayor (MaADN) y menor (MeADN) cantidad de ADN, identificadas mediante citometría de flujo, durante el periodo de transición intermonzónico en otoño en la bahía de Daya (mar de China Meridional). La abundancia de Synechococcus y picoeucariontes varió entre 2.16 × 104 y 1.45 × 105 cél mL–1 y entre 0.78 × 103 y 7.95 × 103 cél mL–1, respectivamente. La abundancia del grupo bacteriano de MaADN fue mayor en el agua superficial (media: 5.58 × 105 cél mL–1) que en el fondo de la bahía (media: 3.74 × 105 cél mL–1), con una diferencia significativa (n = 12, P = 0.05). No se observó una diferencia significativa entre la abundancia del grupo de MeADN en la superficie (media: 7.06 × 105 cél mL–1) y el fondo (media: 4.83 × 105 cél mL–1) (n = 12, P > 0.05). Un análisis de componentes principales mostró que ambos grupos de picofitoplancton (Synechococcus y picoeucariontes) y bacterias (MaADN y MeADN) se relacionaron positivamente con nutrientes (NO3-N, NH4-N y SiO3-Si). Se identificaron tres subsistemas en la bahía: las partes oeste y este, las partes central y noroeste, y la boca y parte central. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2014-09-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2436 10.7773/cm.v40i3.2436 Ciencias Marinas; Vol. 40 No. 3 (2014); 197-210 Ciencias Marinas; Vol. 40 Núm. 3 (2014); 197-210 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2436/1492 ['Redalyc'] redalyc_48032071004 Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea ['Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea', 'Mei-Lin Wu', 'Ciencias de la Tierra', 'bacteria', 'Daya Bay', 'fl ow cytometry', 'picophytoplankton', 'Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Mei-Lin Wu Yu-Tu Wang You-Shao Wang Fu-Lin Sun Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton Environmental changes driven by intense human disturbance and natural pr ocesses govern the abu ndance and distribution characteristics of two picophytoplankton groups ( Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the au tumn monsoon transition period in Daya Ba y (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 10 4 to 1.45 × 10 5 cell mL –1 and from 0.78 × 10 3 to 7.95 × 10 3 cell mL –1 , respectively. The abundance of HDNA bact eria in surface water (mean: 5.58 × 10 5 cell mL –1 ) was greater than in bottom water (mean: 3.74 × 10 5 cell mL –1 ), with significant difference ( n = 12, P = 0.05). The difference in LDNA abundances betwee n surface (mean: 7.06 × 10 5 cell mL –1 ) and bottom (mean: 4.83 × 10 5 cell mL –1 ) waters was insignificant ( n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton ( Synechococcus and picoeukaryotes) and ba cteria (HDNA and LDNA) were positively related to nutrients (NO 3 -N, NH 4 -N, and SiO 3 -Si). Three subsystems in the ba y were identified as follows: the west and east parts, the central and northwest parts, a nd the mouth and central part. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48032071004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.40'] ['Mei-Lin Wu'] ['Mei-Lin Wu'] ['Artículo científico'] ['2014'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'bacteria', 'Daya Bay', 'fl ow cytometry', 'picophytoplankton'] ['https://www.redalyc.org/articulo.oa?id=48032071004'] ['Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Mei-Lin Wu Yu-Tu Wang You-Shao Wang Fu-Lin Sun Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton Environmental changes driven by intense human disturbance and natural pr ocesses govern the abu ndance and distribution characteristics of two picophytoplankton groups ( Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the au tumn monsoon transition period in Daya Ba y (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 10 4 to 1.45 × 10 5 cell mL –1 and from 0.78 × 10 3 to 7.95 × 10 3 cell mL –1 , respectively. The abundance of HDNA bact eria in surface water (mean: 5.58 × 10 5 cell mL –1 ) was greater than in bottom water (mean: 3.74 × 10 5 cell mL –1 ), with significant difference ( n = 12, P = 0.05). The difference in LDNA abundances betwee n surface (mean: 7.06 × 10 5 cell mL –1 ) and bottom (mean: 4.83 × 10 5 cell mL –1 ) waters was insignificant ( n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton ( Synechococcus and picoeukaryotes) and ba cteria (HDNA and LDNA) were positively related to nutrients (NO 3 -N, NH 4 -N, and SiO 3 -Si). Three subsystems in the ba y were identified as follows: the west and east parts, the central and northwest parts, a nd the mouth and central part. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48032071004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.40'] |
| spellingShingle | Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Mei-Lin Wu Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea Mei-Lin Wu Yu-Tu Wang You-Shao Wang Fu-Lin Sun Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton Environmental changes driven by intense human disturbance and natural pr ocesses govern the abu ndance and distribution characteristics of two picophytoplankton groups ( Synechococcus and picoeukaryotes). Picophytoplancton and high DNA (HDNA) and low DNA (LDNA) bacterial groups, identified by flow cytometry, were assessed during the au tumn monsoon transition period in Daya Ba y (South China Sea). The abundance of Synechococcus and picoeukaryotes ranged from 2.16 × 10 4 to 1.45 × 10 5 cell mL –1 and from 0.78 × 10 3 to 7.95 × 10 3 cell mL –1 , respectively. The abundance of HDNA bact eria in surface water (mean: 5.58 × 10 5 cell mL –1 ) was greater than in bottom water (mean: 3.74 × 10 5 cell mL –1 ), with significant difference ( n = 12, P = 0.05). The difference in LDNA abundances betwee n surface (mean: 7.06 × 10 5 cell mL –1 ) and bottom (mean: 4.83 × 10 5 cell mL –1 ) waters was insignificant ( n = 12, P > 0.05). The results of the principal component analysis showed that both picophytoplankton ( Synechococcus and picoeukaryotes) and ba cteria (HDNA and LDNA) were positively related to nutrients (NO 3 -N, NH 4 -N, and SiO 3 -Si). Three subsystems in the ba y were identified as follows: the west and east parts, the central and northwest parts, a nd the mouth and central part. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48032071004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.40 |
| title | Influence of environmental changes on picophytoplankton and bacteria in Daya Bay, South China Sea |
| title_alt | Influencia de cambios ambientales en picofitoplancton y bacterias en labahía de Daya, mar de China Meridional |
| topic | Ciencias de la Tierra bacteria Daya Bay fl ow cytometry picophytoplankton |
| url | https://www.redalyc.org/articulo.oa?id=48032071004 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2436 |