Non-indigenous species Chaetoceros cf. lorenzianus Grunow 1863 – A new, predominant component of autumn phytoplankton in the southern Baltic Sea

Kownacka, Janina; Edler, Lars; Gromisz, Sławomira; Łotocka, Maria; Olenina, Irina; Ostrowska, Mirosława; Piwosz, Kasia

doi:10.1016/j.ecss.2013.01.010

Cited by 11 publications

(9 citation statements)

References 12 publications

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“…In this study, we contributed to the knowledge on pico-and nanoplankton diversity and community composition in the coastal waters of the Baltic Sea. The microplanktonic communities (unicellular organisms with cell size > 20 µm) have been well studied by light microscopy in both in the open Baltic Sea (Feuerpfeil et al, 2004;Gasiunaite et al, 2005;Olenina et al, 2006;Suikkanen et al, 2007;Telesh et al, 2011;Wasmund et al, 2017), and the Gulf of Gdańsk for many years (Kownacka et al, 2013;Wielgat-Rychert et al, 2013;Witek et al, 1997a). Unfortunately, pico-and nanoplanktonic cells cannot be easily recognized by light microscopy (Piwosz et al, 2016), and their molecular studies from the Baltic Sea are still rare (Majaneva et al, 2012;Pernthaler, 2010, 2011;Piwosz et al, 2015b).…”

Section: Discussionmentioning

confidence: 99%

“…The temporal resolution of our study was low, but still higher than in most study that usually focuses on summer season (Hu et al, 2016;Wielgat-Rychert et al, 2013). The dynamics of planktonic protist is high in the Gulf of Gdańsk (Kownacka et al, 2013;Piwosz and Pernthaler, 2010;Piwosz et al, 2015b), but it is plausible that similar patterns in beta diversity of pico-and nanoplanktonic protists in the Vistula River estuary can be observed most of the time.…”

Section: Patterns Of Pico-and Nanoplankton Protists Diversity In the mentioning

confidence: 99%

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Diversity and community composition of pico- and nanoplanktonic protists in the Vistula River estuary (Gulf of Gdańsk, Baltic Sea)

Piwosz

Całkiewicz

Gołębiewski

et al. 2018

Estuarine, Coastal and Shelf Science

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Pico-and nanoplanktonic protists (eukaryotic microorganisms with cell size of < 3 µm and 3-20 µm, respectively) are the key component of plankton communities. However, their diversity and distribution patterns along environmental factors are still poorly recognized, largely due to their enormous phylogenetic diversity that has been realized only via the application of molecular methods over the past two decades. Here, we compared diversity and composition of active communities of pico-and nanoplantonic protists from three zones of the Vistula River estuary (Gulf of Gdańsk): freshwater, mixing (salinity 3.5) and brackish (salinity 7), in four seasons, by pyrosequencing the V3-V4 fragment of 18S rRNA taxonomy marker gene libraries. Alpha diversity was the highest at the brackish site, but the OTU richness was characteristic for specific protist groups. The active protistan communities in the freshwater and mixing zones (salinity 0-3.5) were similar (sharing >72% of phylotypes) and included centric diatoms (Stephanodiscus minutulus), synurophytes from clades C, E and F, and cryptophytes. However, at salinity of 7 at the brackish site the communities were significantly different from those in freshwater/mixing zone, and showed higher contributions of Dinophyceae, Mamiellophyceae, Telonemia, and picobiliphytes. The high similarity between the freshwater and mixing site, as well as high dissimilarity of the brackish site was observed in all months, despite seasonal shifts in pico-and nanoplantonic protistan communities. Seventy five percent of the observed variability in the communities was explained by combinations of temperature, salinity, nutrients and geographical distance, indicating interplay between species sorting and mass effects in shaping the active protistan communities in the Vistula River estuary. Groups that were more active in freshwaters and mixing zone seemed to be more affected by mass effects of mixing water masses, while those from brackish site by environmental species sorting. Finally, we report, for the first time, presence of Radiolaria (Acantharea) from the Baltic Sea.

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Section: Discussionmentioning

confidence: 99%

Section: Patterns Of Pico-and Nanoplankton Protists Diversity In the mentioning

confidence: 99%

Diversity and community composition of pico- and nanoplanktonic protists in the Vistula River estuary (Gulf of Gdańsk, Baltic Sea)

Piwosz

Całkiewicz

Gołębiewski

et al. 2018

Estuarine, Coastal and Shelf Science

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“…C.lorenzianus as one of the largest diatoms, is common in coastal waters throughout the global tropical and temperate regions [54]. The dominant phytoplanktonic specie often form blooms, sometimes with negative impact on coastal ecosystems and sh farms [55,56]. Our results showed copepods were the major neighbors associated with C.lorenzianus in the sampling regions.…”

Section: The Interaction Network Between Zooplankton and Phytoplanktmentioning

confidence: 55%

The Large-Scale Spatial Patterns of Ecological Networks Between Phytoplankton and Zooplankton in Coastal Marine Ecosystems

Zhang¹,

Liu²,

Shen³

et al. 2020

Preprint

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BackgroundThe marine autotrophic phytoplankton is responsible for approximately half of global primary production on Earth, and as the planktonic consumers, the heterotrophic zooplankton could link the phytoplankton and higher trophic level to complete the aquatic Food Web. Despite the interaction between phytoplankton and zooplankton has played important roles in speciation and ecosystem function, little is known about the spatial patterns of their interactions at the continental scale.ResultsHere, we collected 251 seawater samples along 13,000 km of Chinese coastline, and microscopically investigated the spatial gradient patterns of phytoplanktonic and zooplanktonic diversities. In total, 307 phytoplanktonic and 311 zooplanktonic species were visually identified. The distance-decay relationships showed higher turnover rates for zooplankton than phytoplankton, indicating zooplankton had more divergent compositions across larger distances. Furthermore, the zooplankton-phytoplankton interaction networks demonstrated more complex and numerous connections along the southern coast than in the north, suggesting the interactions between these two major planktonic groups had a geographic spatial pattern. The types of planktonic interactions changed along the latitudinal gradient, with positive interactions dominant in northern and middle regions, while the percentage of positive and negative interactions were approximately equal in the southern latitudinal region. Additionally, some particular association between zooplanktonic and phytoplanktonic groups were found to be localized in specific regions, such as autotrophic C. lorenzianus was only associated with heterotrophic Copepoda in northern region, and C. oculus-iridis was only associated with Copepoda and Chaetognatha in the middle (ECS) and southern (SCS) respectively.ConclusionsWe demonstrate here that not only the planktonic biodiversity and community structure exhibited a clear spatial pattern, but also the interaction between phytoplankton and zooplankton also changed with spatial variation. Our results provide a valuable ecological perspective to the biogeography patterns of coastal plankton along the large-scale spatial gradients, and have important implications for understanding how complex planktonic species interactions changed with location variation.

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“…Blooms of a similar species, recorded as Chaetoceros cf. lorenzianus have been observed in the Baltic recently also in autumn [40].…”

Section: Discussionmentioning

confidence: 87%

An updated phytoplankton check-list for the Helgoland Roads time series station with eleven new records of diatoms and dinoflagellates

et al. 2019

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The Helgoland Roads time series is one of the longest and most detailed time series in the world. It comprises daily phytoplankton counts accompanied by physico-chemical measurements. As such, it provides valuable long-term record of changes and their underlying causes in the phytoplankton community around Helgoland. This work provides an updated checklist of the phytoplankton species encountered at the Helgoland Roads LTER station with additional taxonomic assessments from live net samples and scanning electron microscope surveys. Since the last checklist was published 11 additional taxa have been recorded for the first time comprising 9 diatom and 2 dinoflagellate species. Of the 9 diatom species 3 were Chaetoceros species: Chaetoceros anastomosans, C. pseudocurvisetus and C. lorenzianus (the latter identified by their resting cysts) which were all first recognised in September 2009. The toxic dinoflagellate Dinophysis tripos, and the bipolar centric diatom Odontella longicruris both were first observed in September 2015. The latest new record is the potentially toxic dinoflagellate Alexandrium ostenfeldii, first recorded in August 2017. All of the first records (with the exception of Dinophysis tripos) were first observed in semi-quantitative surveys based on live samples and SEM demonstrating that adding less frequent but very detailed assessments can complement high frequency counts of fixed samples as long as these data of different origin are linked efficiently to the individual sampling event and all metadata including representative pictorial metadata are recorded in a consistent manner. In this manner the enhanced checklist serves as a baseline against which long-term changes in phytoplankton potentially related to ecosystem state can be addressed.

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Non-indigenous species Chaetoceros cf. lorenzianus Grunow 1863 – A new, predominant component of autumn phytoplankton in the southern Baltic Sea

Cited by 11 publications

References 12 publications

Diversity and community composition of pico- and nanoplanktonic protists in the Vistula River estuary (Gulf of Gdańsk, Baltic Sea)

Diversity and community composition of pico- and nanoplanktonic protists in the Vistula River estuary (Gulf of Gdańsk, Baltic Sea)

The Large-Scale Spatial Patterns of Ecological Networks Between Phytoplankton and Zooplankton in Coastal Marine Ecosystems

An updated phytoplankton check-list for the Helgoland Roads time series station with eleven new records of diatoms and dinoflagellates

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