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Michał Saniewski; Tamara Zalewska; Maria Suplińska; Lucyna Falkowska; Agnieszka Grajewska; Iga Nehring; Dominika Saniewska; Marta Staniszewska; Iwona Pawliczka
... This study presents levels of ¹³⁷Cs and ⁴⁰K concentrations in the placentas of seals gathered in the period 2007–2015. The mean activity of ¹³⁷Cs and ⁴⁰K was 5.49 Bq kg⁻¹w.w. and 136.6 Bq kg⁻¹ ww respectively. Statistically significant correlation was observed between the ¹³⁷Cs activities in placenta and in herring—the staple food for seals. The concentrations of ¹³⁷Cs and ⁴⁰K were also determined ...
... The Northern Baltic Sea, as one of the few areas with busy ship traffic in ice-covered waters, is a typical sea area exposed to risk of ship accidents and oil spills in ice conditions. Therefore, oil spill capability for response and recovery in this area is required to reduce potential oil spill effects. Currently, there are no integrated, scenario-based models for oil spill response and recovery ...
climate; fire history; forest dynamics; forest fires; forests; humans; landscapes; national parks; prescribed burning; Baltic Sea; Latvia
Abstract:
... Fire has been shown to shape successional pathways and dynamics of forest vegetation. However, its role in European hemiboreal forests remains poorly understood. Here we provide the first annually resolved reconstruction of fire history from the Eastern Baltic Sea region, developed in the pine-dominated landscape of Slitere National Park (SNP), northwestern Latvia, over the last 250 years. Our res ...
... A retrospective analysis of a number of historical medicinal grade cod liver oil samples produced in Northern Europe revealed relatively high contamination levels of PCNs, PCDD/Fs and PCBs. The total toxic equivalence (TEQ) associated with PCDD/Fs, dl-PCBs and PCNs was in the range 95–427 pg g⁻¹ for Baltic cod liver oils and from 70 to 148 pg g⁻¹ for oils sourced from the North Atlantic. The corre ...
coastal water; coasts; eutrophication; model validation; models; pollution load; surface water; water pollution; water quality; Baltic Sea
Abstract:
... In semi-enclosed seas, eutrophication may affect both the coastal waters and the whole sea. We develop and test a modelling approach that can account for nutrient loads from land as well as for influences and feedbacks on water quality across the scales of a whole semi-enclosed sea and its coastal zones. We test its applicability in the example cases of the Baltic Sea and one of its local archipel ...
... Oil spills are serious environmental issues that potentially can cause adverse effects on marine ecosystems. In some marine areas, like the Baltic Sea, there is a large number of wrecks from the first half of the 20th century, and recent monitoring and field work have revealed release of oil from some of these wrecks. The risk posed by a wreck is governed by its condition, hazardous substances con ...
European Union; climate; energy policy; infrastructure; markets; risk factors; wind farms; wind power; Baltic Sea
Abstract:
... Offshore wind power development is expected to play an important role in meeting the EU climate targets. To integrate offshore wind power, advanced offshore infrastructures such as meshed grids are suggested to optimise the grid development. Meshed offshore grids refer to integrated offshore infrastructure where offshore wind power hubs are interconnected to several countries as opposed to radial ...
... Non-indigenous species (NIS) can alter food web structure and function in many ways. While the predatory and competitive roles of NIS in aquatic environments are commonly studied, their role as a prey item for native predators is often overlooked. As the northern Baltic Sea lacks native crabs, the omnivorous estuarine Harris mud crab (Rhithropanopeus harrisii) is a novel invader to the system and ...
... Over recent decades, the neophyte Fucus evanescens has extended eastwards along the salinity gradient within the Baltic Sea, indicating gradual adaptation to low salinity conditions. To find out whether F. evanescens can migrate further into the Baltic Sea and potentially become a competitor to the native F. vesiculosus, the acclimation potentials of different F. evanescens and F. vesiculosus popu ...
... In Europe, numerous Norway spruce (Picea abies L. Karst.) provenance trials have been established and evaluated at a juvenile age. Still, information about the adaptation potential and long-term fitness of transferred seedlots in the Baltic Sea region is lacking. The aim of the study was to evaluate the adaptation capacity of provenances and assess the patterns of their long-term reaction to envir ...
... The Asian shore crab (Hemigrapsus sanguineus) and the brush-clawed shore crab (H. takanoi) both originate from east Asia but have in recent years established viable populations throughout coastal European waters. The two species are highly competitive and can occur in very high densities. Both species have been linked to the decrease of otherwise abundant native species such as the European shore ...
... Organic pollution is a serious environmental problem for the coastal zones of seas. The study tested the hypothesis that allochthonous organic carbon derived from St. Petersburg wastewaters is a significant basal resource of carbon for the benthic food webs. We analyzed stable isotope composition of carbon and nitrogen in suspended organic matter in the Neva Estuary and in the tissues of macroinve ...
coastal zone management; dredging; economic impact; fishermen; managers; marinas; market economy; mathematical models; model validation; stakeholders; systems engineering; tourism; tourists; Baltic Sea; Poland; Russia
Abstract:
... The Vistula Lagoon is the 2nd largest Lagoon in the Baltic Sea, which is roughly 91 km long, 6.8–13 km wide and has an average depth of 2.7 m. It is shared by Poland and Russia and the only access to the Baltic Sea is located in the Russian part. The resulting isolation of the Polish part from the sea is one of the reasons of its economic decline after the transition to market economy in the last ...
... Due to changes in atmospheric circulation and warmer winters, the frequency of strong westerly storms associated with high sea level in ice-free sea conditions has increased on the western coast of Estonia. This trend is especially dangerous for the sections of depositional seashores along the eastern coast of the Baltic Sea such as Pärnu Bay and its surroundings. Pärnu is the largest city in SW E ...
... Coastal ecosystems are important ecosystem services (ES) suppliers. The degradation of these ecosystems jeopardizes the quality of ES provision. The Biodiversity 2020 Strategy aims at maintaining and restoring ES, although clear guidelines are missing on how to define the state to which ES should be restored. In this respect, synergies between ES assessments and the Water Framework Directive (WFD) ...
... The Lithuanian sea space belongs to the smallest sea areas in Europe. The sea space incorporates multiple marine ecosystem services (MES) that support human-wellbeing and sustain maritime economies, but is also subjected to intensive anthropogenic activities that can affect its vulnerable ecological components. We present a flexible geospatial methodology to assess MES richness (MESR) and to analy ...
active ingredients; algorithms; chlorophyll; coasts; data collection; inland waters; monitoring; polymers; reflectance; remote sensing; surface water; uncertainty; water quality; Baltic Sea; Europe
Abstract:
... The relatively high spatial resolution, short revisit time and red-edge spectral band (705 nm) of the ESA Sentinel-2 Multi Spectral Imager makes this sensor attractive for monitoring water quality of coastal and inland waters. Reliable atmospheric correction is essential to support routine retrieval of optically active substance concentration from water-leaving reflectance. In this study, six publ ...
emissions; microbiological quality; pollution; river water; rivers; surface water; villages; wastewater; wastewater treatment; water quality; watersheds; Baltic Sea; Lithuania
Abstract:
... The most common source of pollution is wastewater that comes from the industrial, agricultural, and household sectors. The aim of this work is to evaluate the impact of a new innovative wastewater treatment technology on the water quality of the Leite River, Lithuania. The Leite River basin receives wastewater from the Leitgiriai agglomeration; it is then released into a channel, which is 73 m awa ...
... A very simple algorithm with which to assess cloudiness over the Baltic Sea has been developed. The algorithm involves analysis of cloud longwave emissivity, supplemented with available information on shortwave emissions. The simple classification method is based on the split-window technique and compares a signal recorded in the neighbouring spectral bands with results of cloud-free atmosphere mo ...
... We assess how different micropollutants and microplastics, connected to wastewater are introduced into the Baltic Sea. The relevance of untreated wastewater, treated wastewater, treated and untreated rain runoff, as well as combined sewer overflow (CSO), is assessed in respect to mass balance, as well as relative inflows of micropollutants and -plastics into the Baltic Sea. To achieve this, modell ...
... Native and alkylated polycyclic aromatic hydrocarbons (PAHs) were investigated in whole and fine grained (F < 63 μm) sediment fractions and mussels in the southern Baltic Sea. Both sediments and mussels showed spatial differences in PAH levels and profiles. In whole sediments, mean concentrations of Σ₁₆PAHs, ΣaPAHs, and ΣPAHs reached up to 1537, 415, and 1952 ng g⁻¹ dry weight (dw), respectively, ...
Boletales; fungi; geographical distribution; introduced species; invasive species; models; monitoring; species dispersal; Baltic Sea; Baltic States; Central European region; North America; Poland
Abstract:
... Aureoboletus projectellus is a bolete native to eastern North America that has recently started to spread in Central Europe and is considered as a potentially invasive species. Maximum entropy approach implemented in MaxEnt was used to estimate the distribution of its potential niche in Europe. The model obtained and current data about species’ geographic distribution in the European range were co ...
... The whereabouts of the Balaenoptera borealis holotype, the skeleton of a 1819 stranded specimen, have been unknown since the World War II (WWII). Due to nomenclatural confusion, deficient documentation, and finally WWII bombing, which destroyed predominantly cetacean material in the Museum für Naturkunde Berlin (MfN), the type skeleton of the sei whale sank into oblivion. Construction activities e ...
... This research aimed to find the best phenotype of the brown algae Fucus vesiculosus (kelp) which has the greater potential to become a sorption byproduct for Zn removal from contaminated waters. Thus, the Zn uptake capacity and sorption mechanisms of the kelp collected from the Baltic Sea shore was, for the first time, investigated under various conditions, and compared to the phenotype habiting o ...
... The Baltic Sea is a shallow, semi-enclosed brackish sea suffering like many other coastal seas from eutrophication caused by human impact. Hence, nutrient load abatement strategies are intensively discussed. With the help of a high-resolution, coupled physical-biogeochemical circulation model we investigate the combined impact of changing nutrient loads from land and changing climate during the 21 ...
Common Agricultural Policy; agricultural industry; agricultural land; basins; eutrophication; farms; fertilizer application; hydrology; issues and policy; land use; nitrogen; phosphorus; simulation models; Baltic Sea
Abstract:
... Agriculture is an important source of nitrogen and phosphorous loads to the Baltic Sea. We study how the European Union’s (EU) Common Agricultural Policy (CAP), and in particular how its first pillar, containing most of the budget and the decoupled farm payments, affects eutrophication. To aid our study, we use three simulation models, covering the agricultural sector in the EU, a hydrological nut ...
Bayesian theory; Uria aalge; adults; age structure; breeding; chicks; fledglings; life history; mark-recapture studies; models; probability; seabirds; Baltic Sea; Sweden
Abstract:
... In long-lived species, such as seabirds, immature survival is the most important life history parameter after adult survival. The assessment of immature survival has often been difficult due to extended periods in which young birds remain unobservable at sea. This study presents results on survival of immature Common Murre (Uria aalge) obtained from an extensive mark-recapture study of a large col ...
Ceramium; Polysiphonia; Zostera marina; biofertilizers; cadmium; chemical analysis; coastal zone management; coasts; government agencies; harvesting; macroalgae; monitoring; uncertainty; Baltic Sea
Abstract:
... Macroalgal mass blooms and accumulating beach-cast are increasing problems in many coastal areas. However, beach-cast is also a potentially valuable marine bioresource, e.g. as a biofertiliser in coastal agriculture. One limiting factor in use of beach-cast as a fertiliser is uncertainty regarding the cadmium (Cd) concentration depending on beach-cast composition and location. In this study, chemi ...
... Migration patterns of 146 female silver eels on their way through fresh and brackish water stretches of the Warnow River into the Baltic Sea were studied using acoustic telemetry. The majority of eels (77%) regained their expected downstream migration behaviour after a median rehabilitation time of 2 days. Positive rheotactic behaviour was observed for 23% of tagged eels after release, probably in ...
... Little is known about phosphorus (P) in biological soil crusts (BSCs) and their role in biogeochemical P cycling. The present study evaluated P in BSCs with an array of methodological approaches including sequential P fractionation, solution 31P nuclear magnetic resonance (NMR) spectroscopy, synchrotron-based P K-edge X-ray absorption near-edge structure (XANES) spectroscopy, elemental mapping (μ- ...
Marju Tamm; Martin Ligi; Kristel Panksep; Karolin Teeveer; Rene Freiberg; Peeter Laas; Birgot Paavel; Tiit Kutser; Anu Reinart; Ilmar Tõnno; Tiina Nõges
Cyanobacteria; Miozoa; algorithms; biomass; chemotaxonomy; chlorophyll; coastal water; community structure; environmental indicators; high performance liquid chromatography; microscopy; monitoring; phytoplankton; radiometry; reflectance; reflectance spectroscopy; remote sensing; toxicity; water quality; Baltic Sea
Abstract:
... Research about the occurrence and extent of the cyanobacterial blooms in the Baltic Sea is critical due to their increased magnitude and frequency. Monitoring of the blooms is complicated due to their spatially and temporally heterogeneous nature. For adequate assessment of the water quality, phytoplankton dynamics needs to be tracked in large areas with high monitoring frequency. The main objecti ...
Terry F. Bidleman; Agneta Andersson; Sonia Brugel; Lars Ericson; Peter Haglund; Darya Kupryianchyk; Danny C. P. Lau; Per Liljelind; Lisa Lundin; Anders Tysklind; Mats Tysklind
... Marine macroalgae are used worldwide for human consumption, animal feed, cosmetics and agriculture. In addition to beneficial nutrients, macroalgae contain halogenated natural products (HNPs), some of which have toxic properties similar to those of well-known anthropogenic contaminants. Sixteen species of red, green and brown macroalgae were collected in 2017–2018 from coastal waters of the northe ...
... In this study, quantitative models of the agricultural sector and nutrient transport and cycling are used to analyse the impacts in the Baltic Sea of replacing the current Greening measures of the EU’s Common Agricultural Policy with a package of investments in manure handling. The investments aim at improving nutrient utilization and reducing nitrogen leaching, based on the assumption that laggin ...
Kira Gee; Nerijus Blazauskas; Karsten Dahl; Cordula Göke; Björn Hassler; Andreas Kannen; Neva Leposa; Andrea Morf; Helena Strand; Barbara Weig; Jacek Zaucha
case studies; coastal zone management; decision support systems; issues and policy; planning; stakeholders; Baltic Sea
Abstract:
... The role of tools and approaches is currently much debated in maritime spatial planning (MSP). Past evaluation has mainly concentrated on decision support tools and the tangible outputs these can provide for MSP, but little attention has so far been been given to the soft or indirect benefits tool use can have in MSP. This paper assesses the potential benefits of tool use in the context of four co ...
... Isochrysidales species of the phylum Haptophyta are the exclusive producers of C37 to C42 long chain alkyl ketones, also called long chain alkenones (LCAs). While LCA distributions are known to vary with temperature and salinity, it is difficult to tease apart the direct effects of environmental parameters vs changes in the LCA-producing organisms. The Baltic Sea surface salinity gradient, which r ...
case studies; coasts; models; standard deviation; water power; Baltic Sea
Abstract:
... A method for defining the length of coast with alongshore uniformity of nearshore submarine morphology is required in many shore-normal, nearshore profile modelling approaches. Here, we introduce a new variable, the ‘relaxation distance’, to describe the alongshore spacing between two adjacent shore-normal profiles characterised by distinct morphologies. Within this distance, alongshore morphologi ...
... In this work, liquefied biomass from the Baltic Sea was used for the preparation of rigid polyurethane (PUR) foams. The biomass contained 10 wt% of Enteromorpha macroalgae and 90 wt% of Zostera marina seagrass characterized by a high content of cellulose. The influence of time, temperature and the type of solvent on the efficiency of the liquefaction process and properties of biopolyols was determ ...
computer software; data collection; geographic information systems; topology; Baltic Sea; Poland
Abstract:
... The data and code presented in this article are related to the research article entitled “Analysis of Server-side and Client-side Web-GIS data processing methods on the example of JTS and JSTS using open data from OSM and Geoportal” (Kulawiak et al., 2019). The provided 12 datasets include multi-point and multi-polygon data of different scales and volumes, representing real-world geographic featur ...
coastal zone management; ecosystems; environmental governance; environmental policy; fisheries; laws and regulations; marine environment; planning; stakeholders; Baltic Sea; Sweden
Abstract:
... The expectations on marine spatial planning to improve environmental governance of the Baltic Sea are high, not least for helping to close the huge gaps between environmental objectives and the state of the marine environment. This article focuses on the on-going implementation of marine spatial planning in Sweden, well-known to be a forerunner in environmental policy. Aiming to identify governanc ...
Grete E. Dinesen; Stefan Neuenfeldt; Alexandros Kokkalis; Andreas Lehmann; Josefine Egekvist; Kasper Kristensen; Peter Munk; Karin Hüssy; Josianne G. Støttrup
Gadus morhua; climate; coastal water; coasts; economic valuation; environmental factors; fisheries; habitats; hydrodynamics; information storage; interviews; mathematical models; monitoring; seawater; shrinkage; socioeconomics; surveys; sustainable fisheries; water temperature; Baltic Sea; Denmark
Abstract:
... This study applied the Systems Approach Framework (SAF) to address the issue of declining Atlantic cod fishery in coastal areas. Interviews of 58 fishers from 26 harbours and meetings with national fisheries organisations and managers revealed the perception of an offshore movement of coastal cod. Numerical modelling based on fishing survey data did not substantiate these perceptions in the data-p ...
Artemia; Coregonus; extinction; fish larvae; live feeds; nauplii; progeny; rearing; recirculating aquaculture systems; temperature; weaning; wild fish; Baltic Sea
Abstract:
... Despite intensive stocking programmes, wild Maraena whitefish Coregonus maraena (Bloch, 1779)‐stocks are in danger of extinction in the Baltic sea region. Current aquaculture rearing methods in recirculating aquaculture systems (RAS) are lacking efficient protocols for transitioning larvae from endogenous to exogenous feeding. In this 34‐day‐experiment the offspring of wild fish was used. Maraena ...
fisheries; fisheries management; models; mortality; prediction; Baltic Sea; North Sea
Abstract:
... Like other fisheries models, multispecies models are subject to various sources of error. However, with regard to their use for ecosystem-based fisheries management (EBFM) between model errors are likely to be most important. As multispecies models are by definition many-dimensional, comparing them is potentially a complex task. The paper uses a simple approach. This is to calculate the Jacobian m ...
Ingrid Kröncke; Hermann Neumann; Joachim W. Dippner; Sally Holbrook; Thomas Lamy; Robert Miller; Bachisio Mario Padedda; Silvia Pulina; Daniel C. Reed; Marko Reinikainen; Cecilia T. Satta; Nicola Sechi; Thomas Soltwedel; Sanna Suikkanen; Antonella Lugliè
... Data from five sites of the International Long Term Ecological Research (ILTER) network in the North-Eastern Pacific, Western Arctic Ocean, Northern Baltic Sea, South-Eastern North Sea and in the Western Mediterranean Sea were analyzed by dynamic factor analysis (DFA) to trace common multi-year trends in abundance and composition of phytoplankton, benthic fauna and temperate reef fish. Multiannual ...
... Due to land uplift after the last ice age, previously stable Baltic Sea sulfidic sediments are becoming dry land. When these sediments are drained, the sulfide minerals are exposed to air and can release large amounts of metals and acid into the environment. This can cause severe ecological damage such as fish kills in rivers feeding the northern Baltic Sea. In this study, five sites were investig ...
aerial surveys; altitude; data collection; flight; models; monitoring; quality control; species identification; statistical analysis; water birds; Baltic Sea
Abstract:
... The increasing demand for robust marine bird abundance and distribution assessments coupled with technological advances has led to the development of digital survey techniques for birds. Although digital surveys for bird monitoring are becoming a standard method in some countries, their strengths and weaknesses and comparability with traditional visual surveys remain insufficiently documented and ...
Bacillariophyceae; Cyanobacteria; chlorophyll; community structure; estuaries; hydrology; organic matter; particulates; phytoplankton; rivers; summer; surface area; watersheds; Baltic Sea; Chesapeake Bay; Lithuania; United States
Abstract:
... PURPOSE: Our goal was to understand how differences in source material (allochthonous vs. autochthonous) and phytoplankton communities (diatoms vs. cyanobacteria) influence composition and settling properties of suspended particulate matter. MATERIALS AND METHODS: We characterized the composition and settling properties of suspended particulate matter in two systems—one which has a high hydrologic ...
Chlamydomonas; Chloris; Cyanobacteria; Tetradesmus; biogeography; biological soil crusts; coasts; community structure; dominant species; dunes; genetic markers; microalgae; microorganisms; new combination; new species; phylogeny; ribosomal RNA; species diversity; taxonomic revisions; type collections; Baltic Sea; Germany
Abstract:
... Most of the data on biodiversity, ecology and biogeography of microalgae and cyanobacteria are based on classical morphological approaches. However, morphological identification of these microorganisms is often possible only to higher taxonomic ranks such as genus, because of low morphological diversity and high variability along with the presence of cryptic taxa. This study compared the species c ...
... The aim of this study was to determine changes in concentrations of melatonin (Mel) and thyroxine (T4) in plasma, and 17β-estradiol (E2) and 11-ketotestosterone (11-KT) in plasma and gonads of female and male round gobies (Neogobius melanostomus) from the Southern Baltic Sea in four phases of the reproductive cycle classified as pre-spawning, spawning, late spawning and non-spawning periods. The c ...
... Human activities in marine coastal areas may coincide with protected areas for birds. Some of these anthropogenic activities may pose threats, such as gillnet fisheries, which can significantly affect populations of diving birds, especially gregarious species that gather in huge flocks in small areas such as Greater Scaup (Aythya marila). The Odra Estuary (Baltic Sea, Poland) is known for its impo ...
... Phytoplankton and bacteria interactions have a significant role in aquatic ecosystem functioning. Associations can range from mutualistic to parasitic, shaping biogeochemical cycles and having a direct influence on phytoplankton growth. How variations in phenotype and sampling location, affect the phytoplankton microbiome is largely unknown. A high‐resolution characterization of the bacterial comm ...