Lead in the environment of Lake Wigry (NE Poland)

Lead in the environment of Lake Wigry (NE Poland)Analysis was performed for lead content in the sediments of Lake Wigry (NE Poland), taking into account lithology, basic chemical component content and physical characteristics of sediment, Several hundred sediment samples from different parts of the lake and peatland around the lake, were collected. Their locations were determined by GPS and the depth of sediment by echosounder. The surface layer (0-10 cm) of sediment and sediment cores were taken to determine the spatial and vertical distribution of Pb. Concentrations of lead in the surface sediment range from 2.52 to 469 mg kg-1. One of the most important factors influencing spatial distribution of Pb is sediment type. The highest content of Pb was found in samples of organic gyttja and the lowest in clastic sediment samples. Strong positive linear correlation (r = 0.7) between organic matter content and Pb concentration in sediment was observed. It may be the result of simple bio-accumulation of lead. A large influence of sediment location on Pb distribution was found. The largest concentration of this element was found in sediment of the Wigry Basin. The major part of Pb accumulates in the surface layer of sediment.

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Hubungan antara Jenis Sedimen Pasir dan Kandungan Bahan Organik di Pantai Kartini, Jepara, Jawa Tengah

Journal of Marine Research ◽

10.14710/jmr.v9i4.29020 ◽

2020 ◽

Vol 9 (4) ◽

pp. 423-430

Author(s):

Gadisza Asmara Yudha ◽

Chrisna Adhi Suryono ◽

Adi Santoso

Keyword(s):

Grain Size ◽

Organic Matter ◽

Data Collection ◽

Sediment Cores ◽

Organic Matter Content ◽

Matter Content ◽

Primary Data ◽

Sediment Type ◽

Sediment Samples ◽

Community Activities

Pantai Kartini merupakan salah satu kawasan wisata di Kabupaten Jepara. Berbagai aktifitas masyarakat serta infrastruktur perairan menjadi kebutuhan yang sangat krusial dengan letak Pantai Kartini. Adanya aktivitas dan bangunan dapat menyebabkan perubahan sebaran ukuran butir dan kandungan bahan organik. Penelitian ini memiliki tujuan untuk mengetahui jenis dan klasifikasi sedimen serta jumlah kandungan bahan organik yang terdapat dalam sedimen di Pantai Kartini, Jepara. Pengambilan data pada penelitian ini yaitu pengambilan data primer yang berupa sampel sedimen dengan menggunakan sediment core. Dilanjutkan dengan analisis sampel sedimen dan analisis kandungan bahan organik. Hasil penelitian menunjukkan bahwa di perairan Pantai Kartini, Jepara memiliki jenis sedimen pasir (sand) dimana nilai ukuran butir tersebut berkisar dari 81-96%, yang mana pada Stasiun 1 rata-rata sebesar 91,6-96%, Stasiun 2 rata-rata sebesar 93,5-96,9%, dan Stasiun 3 rata-rata sebesar 81,4-92,9%. Sedangkan, Kandungan Bahan Organik yang terdapat di perairan tersebut memiliki konsentrasi berkisar dari 5-14% yang termasuk dalam kriteria rendah-sedang, dimana pada Stasiun 1 rata-rata sebesar 10,9-13,3%, Stasiun 2 rata-rata sebesar 5,92-10,18%, dan Stasiun 3 rata-rata sebesar 7,7-14%. Kartini Beach is one of the tourist areas in Jepara Regency. Various community activities and water infrastructure have become crucial needs in Kartini Beach. The existence of activities and buildings can cause changes in the distribution of grain size and content of organic matter. This study aims to determine the type and classification of sediments and the amount of organic matter content contained in sediments in Kartini Beach, Jepara. Data collection in this study is primary data collection in the form of sediment samples using sediment cores. Followed by analysis of sediment samples and analysis of organic matter content. The results showed that in Kartini Coast waters, Jepara had a sand sediment type where the grain size values ranged from 81-96%, which at Station 1 averaged 91,6-96%, Station 2 on average amounted to 93,5-96,9%, and Station 3 averaged 81,4-92,9%. Meanwhile, the content of organic matter contained in these waters has concentrations ranging from 5-14% which are included in the criteria of low-moderate, where at Station 1 an average of 10,9-13,3%, Station 2 an average of 5,92-10,18%, and Station 3 averaging 7,7-14%.

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Trace metals in fine grained sediments of the Kaštela Bay, adriatic sea

Water Science & Technology ◽

10.2166/wst.1998.0461 ◽

1998 ◽

Vol 38 (11) ◽

pp. 169-175 ◽

Cited By ~ 3

Author(s):

D. Bogner ◽

M. Juracic ◽

N. Odžak ◽

A. Baric

Keyword(s):

Trace Metals ◽

Adriatic Sea ◽

Sediment Cores ◽

Organic Matter Content ◽

Matter Content ◽

Homogeneous Distribution ◽

Sediment Samples ◽

Fine Grained ◽

The Past ◽

Cu And Zn

The aim of the present work was to study the past and present contamination of the Kaštela bay using chemical analysis of selected trace metals (Cd, Pb, Zn, Cu, Cr, Mn and Ni) in fine grained sediment cores. Sediment samples were taken at three locations with silty sediments. The highest concentrations of Cd, Pb, Cu and Zn and the lowest concentration of Ni were found in the east, the most contaminated part of the Bay. The decrease of Cd, Pb, Cu and Zn concentrations with increased depth, indicates their anthropogenic origin. Homogeneous distribution of Cr, Mn and Ni in the sediment cores indicates their terrigenous origin. The correlation of Zn, Cu and Ni concentration with the organic matter content was determined.

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Groundtmthing Multibeam Bathymetric Surveys of Finfish Aquaculture Sites in the Bay d’Espoir Estuarine Fjord, Newfoundland

Marine Technology Society Journal ◽

10.4031/mtsj.34.1.7 ◽

2000 ◽

Vol 34 (1) ◽

pp. 59-67 ◽

Cited By ~ 6

Author(s):

Michael F. Tlusty ◽

John E. Hughes Clark ◽

John Shaw ◽

Vem A. Pepper ◽

M. Robin Anderson

Keyword(s):

Sediment Cores ◽

Sediment Quality ◽

Organic Matter Content ◽

Matter Content ◽

Sediment Characteristics ◽

High Resolution Images ◽

Sonar Images ◽

Scale Characterization ◽

Finfish Aquaculture

Current and potential salmonid aquaculture sites in the Bay d’Espoir estuarine fjord on the south coast of Newfoundland were surveyed using multibeam SWATH sonar. In 1997, shallow sites were surveyed using the CSS Puffin EM3000POS/MV system, and deeper sites were surveyed in 1998 using the CCGS Creed hull mounted EM 1000. Sediment cores from representative areas were collected during this period and analyzed for organic matter content, and pore water ammonium and sulfate. We discuss the correlation between the sediment core profiles and the results of the side scan and sun-illuminated bathymetric imagery. Bay d’Espoir is a natural depositional area, and that, coupled with the unique backscatter properties of fish farm wastes, increases the difficulty of interpreting these multibeam sonar images. A fairly accurate broad scale characterization of sediment quality can be made from high-resolution images. However’, much of the fine scale detail and inherent variation of sediment characteristics associated with impacts from aquaculture cannot be determined from multibeam imagery.

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Modern sedimentation processes in glacial lakes on the Spitsbergen archipelago (on the example of Lake Bretjørna)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/937/4/042096 ◽

2021 ◽

Vol 937 (4) ◽

pp. 042096

Author(s):

N I Meshcheriakov ◽

G V Ilyin ◽

E G Zhuvikina ◽

G V Tarasov

Keyword(s):

Organic Matter Content ◽

Field Research ◽

Matter Content ◽

Geochemical Characteristics ◽

Study Results ◽

Lake Bottom ◽

Component Content ◽

Lake Bottom Sediments ◽

Lithological Composition ◽

Sedimentation Processes

Abstract The paper reviews the study results of sedimentation and formation of geochemical characteristics of glacial Lake Bretjørna sediment – as the example of postglacial process in inner areas of Arctic archipelagos. Field research and sampling were carried out in the winter of 2018. The properties of sediments along the profile of the lake were analyzed. The income and accumulation of heavy metals in sediment were assessed. The lithofacies characteristics of the sediments and their spatial distribution were determined. In the paper the main geochemical characteristics of the lake bottom sediments (granulometric composition, organic matter content, as well as the accumulation of Pb, Zn, Cu, Ni, Fe, Mn, Hg) are considered. The correlation between the lithological composition of sediments and their micro-component content are shown. Correlation between elements and terrigenous sediments income from Northern Scandinavia and the Kola Peninsula accumulated by the glacier and snow cover of the catchment is obtained. Three associations of trace elements in the group of studied elements are distinguished.

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Komunitas Makrozoobentos pada Substrat Dasar Lunak Di Muara Sungai Wulan, Demak

BULETIN OSEANOGRAFI MARINA ◽

10.14710/buloma.v9i1.27431 ◽

2020 ◽

Vol 9 (1) ◽

pp. 19-26

Author(s):

Narendra Prasidya Wishnu ◽

Retno Hartati ◽

Jusup Suprijanto ◽

Nirwani Soenardjo ◽

Gunawan Widi Santosa

Keyword(s):

Random Sampling ◽

Organic Matter Content ◽

Matter Content ◽

Survey Method ◽

Suitable Habitat ◽

Diversity Analysis ◽

Soft Substrate ◽

Sediment Samples ◽

Central Java ◽

Abundance And Diversity

Muara Sungai Wulan yang terletak di Pantai Demak, Jawa Tengah,merupakan habitat yang baik bagi komunitas makrozoobentos. Habitat tersebutdicirikan dengan sedimen pasir, lanau dan lempung, karena pada beberapa tempat merupakan substrat dasar lunak yang didominasi oleh sedimen lanau. Identifikasi jenis makrozoobentos dan analisis keanekaragamannya penting untuk menentukan kondisi ekosistem substrat lunak tersebut.Tujuan dari penelitian ini adalah untuk mengidentifikasi jenis dan mengetahui struktur komunitas makrozoobentos pada substrat lunak di perairan Delta Wulan, Demak. Metode survei eksploratif diaplikasikan pada penelitian ini dan purposive random sampling dilakukan pada saat mengambil sample sedimen pada12 titik penelitian dengan menggunakan van veen grab sampler. Analisa makrozobentos dan ukuran butir dilakukan terhadap sampel sedimen. Penelitian menemukan 24 spesies makrozoobentos yang termasuk dalam 4 filum, yaitu Arthropoda, Cnidaria, Echinodermata dan Moluska. Titik 5 adalah titik dengan nilai kelimpahan dan keanekaragaman tertinggi adalah Anadara. Terdapat dominansi 4 species yang berbeda disemua titik pengambilan sampel, yaitu Anadara sp., Paphia sp., Cominella sp. dan Gemmula sp. Sedimen pada daerah penelitian termasuk klasifikasi lanau komposisi pasir 2,5-22,14%, lanau 67,82-94,79% dan lempung 0-22,86% serta kandungan bahan organik total yang dikategorikan rendah-sedang dengan nilai berkisar 3,0-14,83%. Adanya dominasi jenis tersebut, maka substrat lunak merupakan habitat yang baik untuk moluska, khususnya bivalvia, sehingga daerah tersebut menjadi tempat penangkapan kerang. Wulan estuary, located in Demak regency, Central Java, is a suitable habitat for the macrozoobenthos community. The habitat is characterized by sand, silt, and clay sediments, which in some places are soft substrates dominated by silt sediments. Identification of macrozoobenthos types and diversity analysis is important to determine the condition of the soft substrate ecosystem. The purpose of this study was to identify species and determine the structure of the macrozoobenthos community on soft substrates in the waters of Delta Wulan, Demak. Explorative survey method was applied in this study while purposive random sampling was carried out to collect the sediment samples at 12 research stations using a Van Veen grab sampler. Macrozoobenthos and grain size analyzes were performed used the sediment samples obtained. The study found 24 species of macrozoobenthos, which included 4 phyla, namely Arthropods, Cnidaria, Echinoderms and Molluscs. Station 5 has the highest value of abundance and diversity Anadara. Four different genera are dominant at all sampling points, namely Anadara sp., Paphia sp., Cominella sp., and Gemmula sp. Sediments in the study area included silt classification in which the composition of sand 2,5-22,14%, the silt of 67,82-94,79%, and loam of 0-22,86% and total organic matter content which was categorized as low-moderate with values ranging from 3,0-14,83%. The dominance evidence in this estuary concluded that soft substrate is a suitable habitat for mollusks, primarily bivalves; therefore this was the capture area of bivalve.

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Methane and sulfate dynamics in sediments from mangrove-dominated tropical coastal lagoons, Yucatán, Mexico

Biogeosciences ◽

10.5194/bg-13-2981-2016 ◽

2016 ◽

Vol 13 (10) ◽

pp. 2981-3001 ◽

Cited By ~ 10

Author(s):

Pei-Chuan Chuang ◽

Megan B. Young ◽

Andrew W. Dale ◽

Laurence G. Miller ◽

Jorge A. Herrera-Silveira ◽

...

Keyword(s):

Sulfate Reduction ◽

Coastal Lagoons ◽

Large Fraction ◽

Sediment Cores ◽

Organic Matter Content ◽

Matter Content ◽

Reduction Zone ◽

Overlying Water ◽

Transport Reaction ◽

Dissolved Methane

Abstract. Porewater profiles in sediment cores from mangrove-dominated coastal lagoons (Celestún and Chelem) on the Yucatán Peninsula, Mexico, reveal the widespread coexistence of dissolved methane and sulfate. This observation is interesting since dissolved methane in porewaters is typically oxidized anaerobically by sulfate. To explain the observations we used a numerical transport-reaction model that was constrained by the field observations. The model suggests that methane in the upper sediments is produced in the sulfate reduction zone at rates ranging between 0.012 and 31 mmol m−2 d−1, concurrent with sulfate reduction rates between 1.1 and 24 mmol SO42− m−2 d−1. These processes are supported by high organic matter content in the sediment and the use of non-competitive substrates by methanogenic microorganisms. Indeed sediment slurry incubation experiments show that non-competitive substrates such as trimethylamine (TMA) and methanol can be utilized for microbial methanogenesis at the study sites. The model also indicates that a significant fraction of methane is transported to the sulfate reduction zone from deeper zones within the sedimentary column by rising bubbles and gas dissolution. The shallow depths of methane production and the fast rising methane gas bubbles reduce the likelihood for oxidation, thereby allowing a large fraction of the methane formed in the sediments to escape to the overlying water column.

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Quality and fertility of soils dedicated to the crop of Vitis vinifera L., var. Albariño in the district of the Salnés (Galicia)

OENO One ◽

10.20870/oeno-one.2000.34.3.1005 ◽

2000 ◽

Vol 34 (3) ◽

pp. 93

Author(s):

Purificación Marcet ◽

Luisa Andrade ◽

F. Maillo ◽

Luisa Reyzábal ◽

M. J. Montero

Keyword(s):

Organic Matter ◽

Surface Layer ◽

Vitis Vinifera ◽

Surface Area ◽

Organochlorine Pesticides ◽

Subsurface Layer ◽

Organic Matter Content ◽

Matter Content ◽

Effective Capacity ◽

Levene Test

This work tries to know the quality and fertility of soils dedicated to the crop of Vitis vinifera L., var. Albariño, taking into account the time of implantation of the crop and farm works employed.Four farms have been selected in Meis (Pontevedra, Spain) where vineyard in grown with different antiquity in the implantation of this monocrop. One is three years old, two are six years old (one on a slope and other on a terrace) and the last one is seventy-five years old in the vineyard implantation.On other hand as reference controls three soils with natural vegetation of the area were chosen.In the selected soils quality and fertility soil indicators were determined. To do that it was evaluated the effect of the monocrop on different physical and chemical properties of the soils in two depths, surface (0-20 cm) and subsurface (20-40cm). The knowledge of the present state of the soils and their evolutive trends will allow us to correct possible desequilibra, to increase fertility and productivity maintaining soil and vineyard quality.All data were submitted to a statistic analysis, carrying out Levene test, ANOVAS and DMS. Partial correlation of the different parameters studied was made too, so as to observe possible relations among them.The texture of all soils is mainly sandy, and in most of them the water movement is ruled by forces with a gravitatory origin that determine the water flow in depth without flooding danger. Rockiness decreases with the age of the crop in two studied depths.Generally talking every soil is characterised by having a neuter pH with acid tendency, pointing up the high pH of the subsurface layer of the oldest vineyard significantly different from the rest.The contents of organic matter decreases with the crop implantation time in the surface area, on the contrary the values of organic matter in the subsoil of different vineyards do not show significant differences statistically talking. The C/N relation is adequate in every soil and there aren’t differences among the soils of vineyards with different age. Neither exist differences among the available P contents in the surface layer of the soils of different age, while in the subsurface increases this content with the age of vineyard.The contents of exchangeable Ca and the effective capacity of cationic exchange are higher in the oldest vineyards soils, though they are relatively low in all of them.In the surface area the level of exchangeable bases is adequate and equilibrated with a pH close to neutrality and low contents of exchangeable Al.In the surface layer the content of available Cu increases with the organic matter content and the age of vineyard. In every soils studied there is deficit of Zn in both layers.Organochlorine pesticides levels are relatively high in all vineyards while organophosphorus compound levels are practically null.Chemical fertility of the soil increases generally with the age of the crop though its maintenance requires modifying the cultural practices in order to avoid the diminishing organic matter content and the increasing Cu and organochlorine pesticides concentrations.

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Initial limnological observations at five small lakes in southern Pacific Costa Rica

UNED Research Journal ◽

10.22458/urj.v10i1.2015 ◽

2018 ◽

Vol 10 (1) ◽

Author(s):

Sally P. Horn ◽

Erik N. Johanson ◽

Kurt A. Haberyan ◽

Mathew S. Boehm ◽

Jessie L. Johanson ◽

...

Keyword(s):

Costa Rica ◽

Environmental History ◽

Global Climate ◽

Sediment Cores ◽

Organic Matter Content ◽

Plant Macrofossils ◽

Matter Content ◽

Radiocarbon Dates ◽

Natural Lakes ◽

Lake Formation

Costa Rica has hundreds of lakes, many of which have never been described or sampled by limnologists. Here we summarize initial observations of five small (0.2–1.7ha) lakes located at low elevation (365–490m) in the cantón of Buenos Aries. We collected basic limnological data and samples during visits in 2013 and 2014, and compiled environmental and archaeological data for their surroundings as a contribution to the documentation of lake diversity in Costa Rica, and to support parallel investigations of indicators of environmental history preserved in the sediments of the lakes. Lagunas Carse, Los Mangos, Danta, and Ojo de Agua all appear to owe their origin to landslide events, while Laguna Junquillo is an artificial impoundment. Radiocarbon dates on plant macrofossils near the bases of sediment cores from three of the natural lakes provide minimum ages for lake formation; results indicate that Laguna Los Mangos formed over 4 100 years ago, while Laguna Danta formed prior to 1 320 CE and Laguna Carse formed ca. 1 550 CE, near the time of the Spanish Conquest. More than two dozen archaeological sites are located within 1–3Km of the natural lakes, documenting pre-Columbian human occupation and likely use of lake resources. Lake water temperatures and water chemistry were in keeping with observations at lakes throughout Costa Rica. All five lakes are probably polymictic lakes that turn over frequently; none evinced stratification. The surface lake sediments showed similar organic matter content (22,1–28,8%), with values falling near the middle of the range of lakes previously sampled in Costa Rica. Phytoplankton samples included taxa previously reported from small lowland lakes, but differed between lakes and included dominant taxa that were subdominant or uncommon at other lakes surveyed. Our investigation adds to knowledge of lake characteristics and diversity in Costa Rica, and provides benchmarks for assessing future changes in these lakes and their watersheds resulting from human activity, natural disturbances, and regional and global climate change.

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Environmental change within the Balkan region during the past ca. 50 ka recorded in the sediments from lakes Prespa and Ohrid

Biogeosciences ◽

10.5194/bg-7-3187-2010 ◽

2010 ◽

Vol 7 (10) ◽

pp. 3187-3198 ◽

Cited By ~ 60

Author(s):

B. Wagner ◽

H. Vogel ◽

G. Zanchetta ◽

R. Sulpizio

Keyword(s):

Organic Matter ◽

Environmental Change ◽

Environmental History ◽

Sediment Cores ◽

Organic Matter Content ◽

Matter Content ◽

Lake Ohrid ◽

Sediment Record ◽

Lake Prespa ◽

Balkan Region

Abstract. Lakes Prespa and Ohrid, in the Balkan region, are considered to be amongst the oldest lakes in Europe. Both lakes are hydraulically connected via karst aquifers. From Lake Ohrid, several sediment cores up to 15 m long have been studied over the last few years. Here, we document the first long sediment record from nearby Lake Prespa to clarify the influence of Lake Prespa on Lake Ohrid and the environmental history of the region. Radiocarbon dating and dated tephra layers provide robust age control and indicate that the 10.5 m long sediment record from Lake Prespa reaches back to 48 ka. Glacial sedimentation is characterized by low organic matter content and absence of carbonates in the sediments, which indicate oligotrophic conditions in both lakes. Holocene sedimentation is characterized by particularly high carbonate content in Lake Ohrid and by particularly high organic matter content in Lake Prespa, which indicates a shift towards more mesotrophic conditions in the latter. Long-term environmental change and short-term events, such as related to the Heinrich events during the Pleistocene or the 8.2 ka cooling event during the Holocene, are well recorded in both lakes, but are only evident in certain proxies. The comparison of the sediment cores from both lakes indicates that environmental change affects particularly the trophic state of Lake Prespa due to its lower volume and water depth.

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Marine free-living nematodes in semiarid inland waters

Acta Limnologica Brasiliensia ◽

10.1590/s2179-975x6520 ◽

2021 ◽

Vol 33 ◽

Author(s):

Fábio Lucas de Oliveira Barros ◽

Maria Cristina da Silva ◽

Francisco José Victor de Castro ◽

Miodeli Nogueira Júnior

Keyword(s):

Organic Matter Content ◽

Coarse Sand ◽

Matter Content ◽

Inland Waters ◽

Direct Connection ◽

Free Living ◽

Sediment Samples ◽

Low Salinity ◽

Distributional Knowledge ◽

New Occurrences

Abstract: Aim This study reports the occurrence of five Nematoda genera previously considered as exclusively marine in inland waters. Methods Sediment samples were taken, weekly, during nine weeks, at a small spring at the Horto Florestal Olho D’Água da Bica, Cuité, PB, ca. 130 km away from the shoreline, between March and May 2016 and fixed in 4% formalin. Nematodes were sorted by manual elutriation through sieves with 0.5 and 0.045 mm and slides were prepared. Results The sediment was classified as coarse sand, with organic matter content ranging between 2.73 and 13.32%, temperature between 27-28°C and constant salinity of 6. From 315 nematodes were sampled among which 18 were from five genera previously thought to be exclusively marine were found. Bolbolaimus was the most common, found in 11.1% of the samples, followed by Gomphionema (3.7%), Rynchonema (7.4%), Prorynchonema (7.4%) e Sabatieria (3.7%), representing 5.7% from total of nematofauna. These genera are widely distributed worldwide, but had never been recorded from inland environments. Conclusions This study contributes with the distributional knowledge of free-living nematodes. From literature data, these genera are not restricted by low salinity, and can be found in estuarine and/or brackish water environments and body water with direct connection to the sea. In any case, the presence of marine genera in this region which is >130 km away from the nearest shoreline is noteworthy, highlighting the importance of studying nematodes from these poorly known semiarid water bodies. These new occurrences raise questionings about the dispersal mechanisms that certified the colonization of these nematodes in the semiarid.

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