Phytoplankton community structure changes during autumn and spring in response to environmental variables in Methana, Saronikos Gulf, Greece

Patoucheas, Pierros; Koukousioura, Olga; Psarra, Stella; Aligizaki, Katerina; Dimiza, Margarita D.; Skampa, Elisavet; Michailidis, Yiannis; Nomikou, Paraskevi; Triantaphyllou, Maria

doi:10.1007/s11356-020-12272-z

Cited by 8 publications

(8 citation statements)

References 47 publications

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“…In addition, along with the increased of nutrients in the water body, the phytoplankton content began to increase, creating more food resources for zooplankton (Zhou et al, 2008). Meanwhile, filter-feeding fish such as silver and bighead carp will preferentially feed on Branchiopods, Copepods and large Rotifers, resulting in reduce predation on small zooplankton and a smaller overall zooplankton community structure (Patoucheas et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of the gut microbiota in bighead carp under different culture patterns

Luo

et al. 2021

J of Applied Microbiology

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Aims:To investigate the phylogenetic composition and functional potential of bighead carp (Hypophthalmichthys nobilis) gut microbiome in two rearing patterns (bighead carp polycultured with Oreochromis niloticus in pond A and bighead carp polycultured with Cyprinus carpio in pond B, respectively), as well as the changes of plankton in the cultured water at four different time points. Methods and Results:The intestinal contents were sequenced using Illumina HiSeq of bacterial 16S rRNA. Cyanophyta and Chlorophyta were the prevalent phytoplankton in the water, whereas Rotifers and Protozoa were the predominant zooplankton.In all, 779,563 quality-filtered sequences and 8870 amplicon sequence variants were obtained from 24 samples that numbered T1A1 to T4A3 and T1B1 to T4B3, resulting in 35 phyla, with Proteobacteria, Firmicutes, Fusobacteria and Cyanobacteria dominating. According to alpha diversity and beta diversity measurements, the bacterial communities were diverse, Chao1 richness and Pielou's evenness were significantly lower in the T2B and T4B groups. The gut bacterial communities of T1A, T1B, T2A and T2B groups differed from those of other samples, which formed distinctly clusters with principal coordinate analysis and non-metric multidimensional scaling analysis. PICRUSt2 predictive function analysis revealed that different culture patterns influenced the gut microbiota metabolic capacity. Conclusions: Intestinal bacteria belonging to the phyla Proteobacteria, Firmicutes, Cyanobacteria and Fusobacteria are better suited to inhabit in various environments and perform specific functions. Furthermore, contact with the external environment and nutrient intake also stimulate the variety of intestinal microbiotas in polycultured bighead carp.Significance and Impact of the Study: This is the first comprehensive, highthroughput investigation of gut microbiota diversity in bighead carp during various seasons in two polycultured patterns and provide preliminary information on gut microbiome composition and changes, laying a crucial foundation for future research on fish culture patterns in various environments.

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Section: Discussionmentioning

confidence: 99%

Comparative analysis of the gut microbiota in bighead carp under different culture patterns

Luo

et al. 2021

J of Applied Microbiology

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“…It may be related either to the historical eruption of 230 BCE, whose lava flow entered the sea in that area, or to the nearby active submarine volcanic edifice called Pausanias (Foutrakis and Anastasakis, 2018). In any case, the sea close to the Pausanias baths has been the site of many studies to investigate the effect of higher pCO 2 values on the local ecosystem (Baggini et al, 2014(Baggini et al, , 2015Bray et al, 2014;Triantaphyllou et al, 2018;Patoucheas et al, 2021).…”

Section: Methana Peninsulamentioning

confidence: 99%

Shallow Sea Gas Manifestations in the Aegean Sea (Greece) as Natural Analogs to Study Ocean Acidification: First Catalog and Geochemical Characterization

et al. 2022

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The concepts of CO2 emission, global warming, climate change, and their environmental impacts are of utmost importance for the understanding and protection of the ecosystems. Among the natural sources of gases into the atmosphere, the contribution of geogenic sources plays a crucial role. However, while subaerial emissions are widely studied, submarine outgassing is not yet well understood. In this study, we review and catalog 122 literature and unpublished data of submarine emissions distributed in ten coastal areas of the Aegean Sea. This catalog includes descriptions of the degassing vents through in situ observations, their chemical and isotopic compositions, and flux estimations. Temperatures and pH data of surface seawaters in four areas affected by submarine degassing are also presented. This overview provides useful information to researchers studying the impact of enhanced seawater CO2 concentrations related either to increasing CO2 levels in the atmosphere or leaking carbon capture and storage systems.

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“…Species composition and structure of the algae community were affected by the environmental factors such as physical, chemical and biological in lakes, reservoirs and other water bodies [26][27][28]. In general, nutrients and water temperature were the key factors in affecting the growth of algae, but the two factors also were affected by other physical, chemical, and biological factors through the certain way.…”

Section: Relationship Between Algae Community and Environmental Factorsmentioning

confidence: 99%

Algae community structure and relation to environmental factors in the Hulanhe Wetland, Northeast China

Hui

Wang

et al. 2022

Preprint

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The distribution characteristic of algae community was evaluated in eight sampling sites based on a monthly survey during May to October 2020 and 2021 in the Hulanhe Wetland, Northeast China. Algae and water environmental factors including water temperature (T), pH, Conductivity (Cond.), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbons (TOC), total phosphorus (TP) and nitrogen (TN) were investigated, and a total of 216 taxa were identified by microscope. The algae community was dominated by Bacillariophyta, Chlorophyta and Euglenophyta. Species such as Melosira granulate, Cyclotella meneghiniana, Navicula cryptocephala and Pandorina morum were the most common species. Significant difference of the algae composition and abundance were found in the different sampling sites. Species composition in H8 were different variously with other sites, provide a good chance for us to study the tolerance of the species, compared with other sites, several pollution indicator species were observed. According to canonical correspondence analysis (CCA), TN and TP were the main environmental factors affecting the distribution of algae. Furthermore, temperature and dissolved oxygen were also important to the algae community. It is suggested that the relationship between algae community and environmental factors can point to new directions in future studies on the water quality and habitat conditions in a wetland.

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Phytoplankton community structure changes during autumn and spring in response to environmental variables in Methana, Saronikos Gulf, Greece

Cited by 8 publications

References 47 publications

Comparative analysis of the gut microbiota in bighead carp under different culture patterns

Comparative analysis of the gut microbiota in bighead carp under different culture patterns

Shallow Sea Gas Manifestations in the Aegean Sea (Greece) as Natural Analogs to Study Ocean Acidification: First Catalog and Geochemical Characterization

Algae community structure and relation to environmental factors in the Hulanhe Wetland, Northeast China

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