Plankton dynamics and zooplankton carcasses in a mid-latitude estuary and their contributions to the local particulate organic carbon pool

Giesecke, Ricardo; Vallejos, Tomás; Sánchez, Mario Alberto Morales; Teiguiel, K.

doi:10.1016/j.csr.2016.07.020

Cited by 20 publications

(11 citation statements)

References 66 publications

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“…The surface waters of lower salinity showed low phytoplankton biomass, increasing within the pycnocline and below (Figure 6), which is a typical pattern observed in other estuaries and fjord areas (Alldredge et al, 2002;Jouenne et al, 2007). Phytoplankton composition along the transect shifted from a freshwater-water species dominated community during winter toward a marine species dominated community during summer, in agreement to that reported by Giesecke et al (2017). The hydrographic features in the Arauco Gulf follow a seasonal pattern, with higher upwelling events during austral spring/summer (Valle-Levinson et al, 2003;Sobarzo et al, 2007) and with a considerable influence of freshwater discharges from the Biobío River in winter (Vargas et al, 2016).…”

Section: Stationssupporting

confidence: 88%

“…The seasonal variability in the hydrographic conditions and the phytoplankton community in the Valdivia river estuary and the adjacent coastal area were mostly associated to changes in the extent of the river plume along the transect, which was primarily linked to seasonal changes in the freshwater discharges, as previously described for this area (Vargas et al, 2003;Giesecke et al, 2017). In winter, the low NO − 3 + NO − 2 and PO −3 4 concentrations typical for this system (Pérez et al, 2015) together with the limited solar irradiance characteristic at this latitude (Iriarte et al, 2007;González et al, 2010) limited the phytoplankton growth and favored a net heterotrophic system, FIGURE 7 | Cell abundance of the phytoplankton groups (dots) dominating the community in the Arauco Gulf estuary during winter (left) and summer (right).…”

Section: The Natural Environmental Variability Of Hydrography and Carsupporting

confidence: 53%

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Response of Phytoplankton Assemblages From Naturally Acidic Coastal Ecosystems to Elevated pCO2

et al. 2020

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Section: Stationssupporting

confidence: 88%

Section: The Natural Environmental Variability Of Hydrography and Carsupporting

confidence: 53%

Response of Phytoplankton Assemblages From Naturally Acidic Coastal Ecosystems to Elevated pCO2

et al. 2020

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“…In addition to the dominant copepods, there are also members of the Cladocera suborder (Podon sp.) which are small holoplankton animals filtering smaller animals or phytoplankton from the sea (Giesecke et al 2017).…”

Section: Zooplanktonmentioning

confidence: 99%

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

2018

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Takarina ND, Nurliansyah W, Wardhana W. 2019. Relationship between environmental parameters and the planktoncommunity of the Batuhideung Fishing Grounds, Pandeglang, Banten, Indonesia. Biodiversitas 20: 171-180. Phytoplankton has a roleas primary producers and zooplankton as primary consumers in the marine environments. The composition of the plankton communityis dependent on the physical and chemical characteristics of the waters. The aim of the research described here was to analyze thecommunity structure of plankton in the Batuhideung Fishing Grounds, of Banten in Indonesia, and to relate this structure to the physicalparameters (sea surface temperature, clarity, current velocity) and chemical parameters (salinity, pH, DO, nitrate, phosphate) of its seasurroundings. The research was conducted three times at five observation stations from September to October 2017. Samples ofphytoplankton and zooplankton were taken horizontally using nets with mesh size of 80 μm and 133 μm, respectively. Results showedthat the sea surface temperature ranged from 28.70-30.20C, current velocity 0.10-1.30 m/s, clarity 7-10 m, salinity 30-34 g/L, DO 6.20-8.60 mg/L, pH 8.40-8.59, nitrate concentration 0.49-0.81 mg/L, and phosphate concentration 0.09-0.42 mg/L. There were 37 generafrom 4 classes of phytoplankton. The abundance of Bacillariophyta was 52,734 individuals/L, Myzozoa was 1,315 ind/L, Chyanophytawas 633 ind/L, and Euglenophyta was 200 ind/L. There were 35 genera from 12 classes of zooplankton, dominated by Copepods withabundance 82.1-91.4%. The diversity index of phytoplankton ranged from 1.25-2.02, evenness index ranged from 0.52-0.85, anddominance index ranged from 0.19-0.38. Based on multivariate cluster analysis, there were similar environmental parameters in stations1, 2 and 3, while stations 4 and 5 grouped differently from the other three. Based on Pearson's correlation analysis, current velocity andphosphate were positively correlated to phytoplankton abundance, whereas temperature, transparency, salinity, DO, pH, and nitrate werenegatively correlated, temperature significantly so. Nitrate, phosphate, salinity, DO were positively correlated with zooplanktonabundance but not significantly. Temperature, current velocity, clarity, and pH were negatively correlated with zooplankton abundance,but only with pH did the correlation reach statistical significance.

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“…In particular, positive staining was registered in such taxa as polychaete larvae (Crippen, Perrier, 1974;Elliott, Tang, 2009), rotifers, gastropod larvae, chaetognaths (Crippen, Perrier, 1974), barnacle nauplii (Crippen, Perrier, 1974;Elliott, Tang, 2009;Giesecke et al, 2017) and copepod nauplii (Crippen, Perrier, 1974;Ivory et al, 2014;Giesecke et al, 2017), Oikopleura spp. (Giesecke et al, 2017) (Table 1). For some of these taxa, negative results were occasionally obtained, like for polychaete larvae and barnacle nauplii (Tang et al, 2006) and harpacticoids (Ivory et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Methodology to identify and differentiate between alive and dead organisms in marine and freshwater zooplankton is still poorly developed and based mainly on: (i) visual discrimination of carcasses in native (live) and preserved samples (Daase et al, 2014, table 1); (ii) vital or mortal staining protocols. For many decades, the vital dye neutral red (NR) has been successfully used to study live/dead zooplankton, mostly copepods, in marine samples (Tang et al, 2006;Elliott, Tang, 2009Ivory et al, 2014;Giesecke et al, 2017). Use of fluorescein diacetate (FDA), a substrate for active enzymes inside viable Ecologica Montenegrina 23: 70-76 (2019) This journal is available online at: www.biotaxa.org/em cells (Butino et al, 2004), has been recently proposed as an alternative, fluorescent technique for viability assay of marine copepods (Litvinyuk et al, 2009;Litvinyuk et al, 2011;Litvinyuk, Mukhanov, 2012).…”

Section: Introductionmentioning

confidence: 99%

Applicability of the vital dyes neutral red and fluorescein diacetate to differentiate between alive and dead non-copepod zooplankton

Litvinyuk

Mukhanov

2019

Ecol. Mont

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It is a common practice for planktonologists to use neutral red (NR) staining to identify viable copepods in marine zooplankton. A new fluorescent dye, fluorescein diacetate (FDA), has also been successfully applied to Copepoda. Meanwhile, almost nothing is known about if NR- and FDA-based viability assays are applicable to many other zooplankton taxa. In this study, efficiencies of NR and FDA staining were evaluated and compared for different taxa and developmental stages of the Black Sea non-copepod zooplankton. Both the dyes were shown to stain well larvae of polychaetes, gastropods and bivalves, rotifers, fish eggs, barnacle nauplii, decapod zoeae, and the heterotrophic dinoflagellate Noctiluca sсintillans. Dominant species of Cladocera (Pleopis polyphemoides, Evadne spinifera, Pseudevadne tergestina) were stained efficiently with FDA only. Some taxa had sufficient statistics of positive staining only with one of the dyes, NR (e.g. appendicularians and chaetognaths) or FDA (e.g. barnacle cyprids). Correspondingly, more data are demanded to fill the gaps in the target taxa. The dyes proved to be taxa-specific and hence, their reliable application should be based on their target groups.

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Plankton dynamics and zooplankton carcasses in a mid-latitude estuary and their contributions to the local particulate organic carbon pool

Cited by 20 publications

References 66 publications

Response of Phytoplankton Assemblages From Naturally Acidic Coastal Ecosystems to Elevated pCO2

Response of Phytoplankton Assemblages From Naturally Acidic Coastal Ecosystems to Elevated pCO2

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

Applicability of the vital dyes neutral red and fluorescein diacetate to differentiate between alive and dead non-copepod zooplankton

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