Longitudinal development of chlorophyll and phytoplankton assemblages in a regulated large river (the Ebro River)

Sabater, Sergi; Artigas, Joan; Durán, Concha; Pardos, Miriam; Romaní, Anna M.; Tornés, Elisabet; Ylla, Irene

doi:10.1016/j.scitotenv.2008.06.013

Cited by 106 publications

(69 citation statements)

References 35 publications

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“…In large river systems, the complicated interactions among channel geomorphology, nutrients, water retention time, light availability, and herbivores affect the longitudinal pattern of planktonic communities (Sabater et al, 2008). The responses of phytoplankton to physical and chemical factors in the surrounding environment affect the structure and function of the entire planktonic community (Buric et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The responses of phytoplankton to physical and chemical factors in the surrounding environment affect the structure and function of the entire planktonic community (Buric et al, 2007). The longitudinal pattern of phytoplankton is more complex because the dynamics of phytoplankton are altered by human activities and hydrological dynamics of the reservoir when the systems are highly regulated (Sabater et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Longitudinal patterns of phytoplankton distribution in a tributary bay under reservoir operation

Wang

Cai

Zhang

et al. 2011

Quaternary International

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Longitudinal patterns of phytoplankton distribution in a tributary bay under reservoir operation

Wang

Cai

Zhang

et al. 2011

Quaternary International

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“…Orthophosphate concentration was higher in the Alcantara River than in Kielstau catchment (Wu et al, 2011) in the same season and almost an order of magnitude higher than that in Manahadi River, Chhattisgarh, India, throughout the year (Das and Panda, 2010). Instead, nitrates showed lower values in our study area than in Kielstau catchment in spring (Wu et al, 2011), and the Manahadi River throughout the year (Das and Panda, 2010), but much higher than in the Kars River in the same season (Ö zbay and Altindag, 2009 (Sabater et al, 2008) and Rhine (Germany) (21-30 mg.L x1 since 1992) (Friedrich and Pohlmann, 2009), and one order of magnitude lower than that from such rivers in Hungary (740 mg.L x1 ; Kiss et al, 1994), Greece (740 mg.L x1 ; Montesanto et al, 2000) or Estonia (y 740 mg.L x1 ; Piirsoo et al, 2008). However, chl a concentration in Alcantara River is similar to that of some other rivers in Hungary (Istva´novics and Honti, Fig.…”

Section: Discussionmentioning

confidence: 55%

Spring rotifer community structure in the Alcantara River (Sicily, Italy), using different mesh size nets: relation to environmental factors

Rodríguez

Granata

Guglielmo

et al. 2013

Ann. Limnol. - Int. J. Lim.

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-The present study focus on some aspects of zooplankton structure in the Alcantara River (Sicily, Italy), in relation to environmental factors. Zooplankton samplings were performed in spring in four sites, located from up-to downstream along the river course. Four low-flow velocity station points were chosen along a transversal river section in each site. Samples were taken from all station points in the four sites by two different mesh sizes (55 and 100 mm) rectangular nets. Rotifer abundances were an order of magnitude higher in 55 mm mesh size samples than in 100 mm mesh size ones. The two communities also resulted significantly different (ANOSIM test, r = 0.212; P = 0.1%). Generally, low abundances (from 3470 ¡ 5133 to 422 ¡ 474 ind.m x3 ) were explained by low chlorophyll a concentration and the highflow regime of this river. Rotifer dominated the zooplankton community. Cladocerans, copepods and nauplii occurred with considerably lower abundances than rotifers. However, the relative contributions of these taxa to total abundances depended on the mesh sizes used. Euchlanis and Adineta genera exhibited the highest abundances in the rotifer assemblage. Conductivity alone or in association with temperature and dissolved oxygen was the most important environmental factor affecting rotifer community distribution. Cephalodella sp., Lepadella sp. and Trichotria pocillum showed a high positive relation to pico-plankton, showing this fraction as a possible rotifer food item. This paper demonstrated a higher efficiency of the finest net to characterize riverine zooplankton community that increases from up to downstream in terms of abundances and diversity.

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“…Concurrently, the SEDIM protocol was also used at each site. A sample of 1 L of subsurface (5-40 cm) river water was taken and fixed in 5‰ non-acetic Lugol's iodine solution (Sabater et al, 2008). Forty-eight hours later, the supernatant liquid was removed and the retained organisms were transferred into glass containers.…”

Section: Sampling Methods and Primary Proceduresmentioning

confidence: 99%

“…It is thus a preferred method for clean water with low phytoplankton density. In contrast, SEDIM is usually used in water bodies with high phytoplankton density (e.g., Ha et al, 1998;Ko¨hler et al, 2002;Zhou et al, 2006;Sabater et al, 2008;Friedrich and Pohlmann, 2009;Xu et al, 2009). Nevertheless, in small rivers and streams with relative higher current velocity, the studies on phytoplankton were very scarce (Piirsoo et al, 2008;Sumorok et al, 2009;Centis et al, 2010) and the sampling methods in these systems were also diverse and not as well developed as in lakes or large rivers.…”

Section: Introductionmentioning

confidence: 99%

A comparison of phytoplankton assemblages generated by two sampling protocols in a German lowland catchment

Schmalz

Fohrer

2011

Ann. Limnol. - Int. J. Lim.

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-Research in the phytoplankton community has become an important part of the overall water-quality monitoring. However, to date studies in small rivers and streams were still scarce and sampling methods were also diverse and not as well developed as in lakes or large rivers. We investigated whether two sampling protocols collected different phytoplankton assemblages within a lowland catchment and, consequently, influenced the outcome of bio-assessment. Data collected from 77 sites by plankton net (PLNET) collection and sedimentation (SEDIM) protocols were analyzed. Median Bray-Curtis (BC) similarity between phytoplankton assemblages generated by the two protocols was 48.5% (range: 7.5-82.0%), and sites with the lowest BC similarities tended to have lower chlorophyll a (Chl a), water temperature (WT), total suspended solid (TSS) and volatile suspended solid (VSS), but higher channel width and water depth, than other sites with higher BC similarities. Reduced total algal density and biomass, but higher species richness, were observed by the PLNET protocol. However, overall phytoplankton assemblages generated by the two protocols were similar, as indicated by dominant species (paired t-test, P > 0.05) and non-metric multidimensional scaling (NMDS) ordination. Nevertheless, from the phytoplankton-based bio-assessment point of view, PLNET protocol was a better method compared with SEDIM protocol because algal data collected by PLNET protocol had higher relationship with environmental variables as indicated by 'Correlation Index' (CoI), Cumulative_R 2 and canonical correspondence analysis (CCA).

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Longitudinal development of chlorophyll and phytoplankton assemblages in a regulated large river (the Ebro River)

Cited by 106 publications

References 35 publications

Longitudinal patterns of phytoplankton distribution in a tributary bay under reservoir operation

Longitudinal patterns of phytoplankton distribution in a tributary bay under reservoir operation

Spring rotifer community structure in the Alcantara River (Sicily, Italy), using different mesh size nets: relation to environmental factors

A comparison of phytoplankton assemblages generated by two sampling protocols in a German lowland catchment

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