Benthic communities and environmental parameters in Amvrakikos Wetlands: Mazoma, Tsopeli,Tsoukalio, Rodia and Logarou lagoons (September 2010 – July 2011)

資料紀錄

此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 303 筆紀錄。

亦存在 2 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

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版本

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如何引用

研究者應依照以下指示引用此資源。:

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.

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 Hellenic Center for Marine Research。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: 83ea4307-fd04-467c-af87-271a963841fc。  Hellenic Center for Marine Research 發佈此資源，並經由Ocean Biodiversity Information System同意向GBIF註冊成為資料發佈者。

關鍵字

Samplingevent

聯絡資訊

地理涵蓋範圍

Five lagoons were studied (Logarou, Tsoukalio, Tsopeli, Rodia, Mazoma)

分類群涵蓋範圍

Main categories are: Polychaeta, Crustacea, Bivalvia

時間涵蓋範圍

取樣方法

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).

方法步驟描述:

1. 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).

額外的詮釋資料