10.15468/dffi6y 83ea4307-fd04-467c-af87-271a963841fc http://ipt.medobis.eu/resource?r=zoobenthos_in_amvrakikos_wetlands Sofia Reizopoulou Hellenic Centre for Marine Research - Institute of Oceanography Researcher

19013

+30 22910 76383 Dimitra Mavraki Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture Data Manager

71003

+30 2810 33 77 40 dmavraki@hcmr.gr Stamatina Nikolopoulou Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture Data Manager

71003

+30 2810 33 77 40 snikolo@hcmr.gr Popi Sigala Hellenic Centre for Marine Research - Institute of Oceanography

19013

+30 22910 76386 sigalakal@hcmr.gr http://www.hcmr.gr.eu CONTENT_PROVIDER Christos Arvanitidis Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture Senior Researcher +302810337748 arvanitidis@hcmr.gr PRINCIPAL_INVESTIGATOR Christina Pavloudi Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture PhD student

71003

+30 2810 33 77 42 CONTENT_PROVIDER Katerina Vasileiadou Hellenic Centre for Marine Research - Institute of Marine Biology, Biotechnology and Aquaculture Phd student kvasileiadou@hcmr.gr CONTENT_PROVIDER Marilena Tsompanou Hellenic Centre for Marine Research

Athens Attiki GREECE

mtsompanou@hcmr.gr CONTENT_PROVIDER 2022-02-28 ENGLISH Zoobenthic communities across confinement gradient in 5 coastal lagoons (Mazoma, Tsopeli,Tsoukalio, Rodia and Logarou) in Amvrakikos for four seasons (data analysis is still in progress) Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml marine, harvested by iOBIS,https://doi.org/10.3897/BDJ.4.e8233 This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License . Creative Commons Attribution 4.0 International https://spdx.org/licenses/CC-BY-4.0.html CC-BY-4.0 http://ipt.medobis.eu/archive.do?r=zoobenthos_in_amvrakikos_wetlands Five lagoons were studied (Logarou, Tsoukalio, Tsopeli, Rodia, Mazoma) 20.33 21.36 39.16 38.64 2010-09-09 2010-09-13 2011-02-19 2011-02-21 2011-05-21 2011-05-25 2011-07-21 2011-07-25 Main categories are: Polychaeta, Crustacea, Bivalvia Class Polychaeta Subphylum Crustacea Class Bivalvia unkown Sofia Reizopoulou Hellenic Centre for Marine Research - Institute of Oceanography Researcher

19013

+30 22910 76383 Replicates were collected at two stations, one inside and one outside the lagoon, in each lagoon (five totally), using a box corer (0.03 m2 sampling surface). The samples were sieved through a 0.5 mm mesh sieve, stained with Rose Bengal and preserved in 4% formalin. All benthic organisms were sorted in the lab and identified and counted using stereo- and microscopes. For each wetland a seperated xls file with the relevant information was prepared (both occurence and environmental data). seasonally (4 seasons) records of zoobenthic communities across confinement gradient in 5 coastal lagoons (Mazoma, Tsopeli,Tsoukalio, Rodia and Logarou) box corer for 0.03 square meters area sampled Sediment temperature was measured by means of a thermometer in the first centimeter of the sediments; salinity, conductivity, water temperature, dissolved oxygen and pH were measured in the water overlaying the sediments by means of a portable multi-parameter. Redox potential of the first centimeter of the sediments was measured by means of a portable probe which was previously immersed in Zobell solution (Zobell, 1946). Sediment samples were collected from all stations by means of a modified manually-operated box-corer. Samples were collected from fishing boats specifically used at the lagoons. Cylindrical sampling corers (internal sampling surface 15.90 square centimeters) were placed inside the box-corer and sub-samples of the sediment’s upper layer (0-2 cm) were collected from each of them. Samples were collected for the determination of the concentration of the Total Reduced Inorganic Sulfur (TRIS). TRIS is the sum of Acid Volatile Sulfides (AVS), i.e. hydrogen sulfide (H2S) and iron sulfide (FeS), and Chromium Reducible Sulfur (CRS), i.e. elemental sulfur (S0) and iron pyrite (FeS2). Samples of about 8 cubic centimeters were collected from the sediment's upper layer and were immediately placed on 50 ml falcon tubes, with tapered bottom, containing 10 ml of zinc acetate solution 20% (w/v). The samples were mixed in order to allow the total surface of the sediment to come in contact with the solution and were subsequently stored at -20 oC, until further processing in the Marine Ecology Laboratory of the University of Crete, in accordance with the hot distillation method (Kallmeyer et al., 2004). The final measurement of the TRIS values was based on the method described by Cline (1969). Similarly, samples were also collected from cylindrical corers for the measurement of the Particulate Organic Carbon (POC), organic matter (measured by Loss On Ignition), chloroplast pigments concentrations (chlorophyll-a and phaeopigments) and for the sediment's granulometry (for the latter, the sampling depth was five centimeters in order for the results to be comparable with previously published data on the study area). Also, three replicate water samples were collected by means of Niskin bottles (5 lt) which were subsequently used for the measurement of chemical variables (concentration of POC, chloroplast pigments and nutrients (phosphate ion (PO43-), nitrate ion (NO3-), nitrite ion (NO2-), ammonium ion (NH4+) and silicon dioxide (SiO2)). The aforementioned samples were processed at the Chemistry Lab of the IMBBC (HCMR), based on standard techniques (chloroplast pigments: Yentsch and Menzel, 1963; POC: Hedges and Stern, 1984; granulometry: Gray and Elliott, 2009; organic matter: Loh et al., 2008; nutrients: Grasshoff et al., 1983; Parsons et al., 1984; Strickland and Parsons, 1972). 2026-04-14T08:23:35Z Reizopoulou S., Sigala K., Tsompanou M., Vasileiadou K., Pavloudi C., Arvanitidis C. (2016) Benthic communities in Amvrakikos Wetlands: Mazoma, Tsopeli,Tsoukalio, Rodia and Logarou lagoons (September 2010 – July 2011. https://doi.org/10.15468/dffi6y accessed via GBIF.org on 2022-04-18. accessed via GBIF.org on 2022-04-18. accessed via GBIF.org on 2026-04-14. http://ipt.medobis.eu/logo.do?r=zoobenthos_in_amvrakikos_wetlands