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Desmarestiales; Fucales; Laminariales; Siberia; Tilopteridales; biogeography; climate change; data collection; forests; geographical distribution; ice; indigenous species; littoral zone; macroalgae; nitrates; salinity; species richness; temperature; water power; Antarctica; Australia; Baltic Sea; South Africa
Abstract:
... AIM: Marine forests of brown macroalgae create essential habitats for coastal species and support invaluable ecological services. Here, we provide the first global analysis of species richness and endemicity of both the kelp and fucoid biomes. LOCATION: Global. TIME PERIOD: Contemporary. MAJOR TAXA STUDIED: Marine forests of brown macroalgae, formed by kelp (here defined as orders Laminariales, Ti ...
Clupea harengus; climate change; herring; larvae; larval development; life history; research; seawater; spring; water temperature; yolk sac; Baltic Sea
Abstract:
... Exogenous anomalies induced by contemporary climate change may severely impact dynamics of early life stages of fish. Here, we modelled how growth rate and abundance of postflexion larvae, and recruitment of Baltic spring-spawning herring (Clupea harengus membras) in the Pärnu Bay, Gulf of Riga (GoR) may respond to shifting climate variables. Higher larval growth rates were aligned with later seas ...
... Coastal ecosystems worldwide are facing intense and diverse pressures caused by anthropogenic climate change, which compromises physiological tolerance of organisms, as well as causes shifts in their biotic interactions. Within-species genetic variation plays an important role in persistence of populations under such changes by providing building blocks for adaptation. The brackish-water Baltic Se ...
Soil and Water Assessment Tool model; basins; carbon dioxide; climate; climate change; freeze-thaw cycles; nitrogen; nutrient retention; phosphorus; pollution load; rivers; sediments; snowpack; soil; stream flow; temperature; topographic slope; total nitrogen; total phosphorus; watersheds; winter; Baltic Sea
Abstract:
... This study provides an in-depth analysis of the Nemunas River watershed, situated in the Baltic Sea basin, and possible future changes to the stream flow, hydrologic regime, sediment (SS), Total Nitrogen (TN) and Total Phosphorus (TP) load from the river to the Curonian Lagoon under different climate change scenarios using high-resolution modelling. The sub-regions of the watershed, represented by ...
European Union; biodiversity; climate change; freshwater; freshwater fish; life history; risk; risk assessment; rivers; Baltic Sea; Iberian Peninsula
Abstract:
... Understanding how climate change would affect biota inhabiting sensitive and highly valuable ecosystems, spanning broad regions, is essential to anticipate implications for biodiversity and humans, and to identify management and mitigation measures. Traditionally, assessments to evaluate climatic risks over broad regions and for many species implement models that allow the projection of a climate- ...
case studies; climate change; coasts; decision making; environmental economics; issues and policy; people; recreation; surveys; willingness to pay; Baltic Sea; Germany
Abstract:
... Climate change adaptation is essential for coastal areas. This paper adds to the limited evidence on the trade-offs people are willing to make concerning coastal adaptation strategies along an entire coast of a state (Baltic Sea coast of Mecklenburg-Western Pomerania). The trade-offs are conceptualised in a choice experiment in terms of six attributes: the extent of beach nourishment, dyke heighte ...
... Due to climate change, extreme floods are projected to increase in the 21st century in Europe. As a result, flood risk and flood-related losses might increase. It is therefore essential to simulate potential floods not only relying on historical but also future projecting data. Such simulations can provide necessary information for the development of flood protection measures and spatial planning. ...
... Coastal dunes near the Baltic Sea are often stabilized by Scots pine forests and are characterized by a mild climate. These ecosystems are affected by water shortages and might be influenced by climate extremes. Considering future climate change, utilizing tree rings could help assess the role of climate extremes on coastal forest growth. We used superposed epoch analysis to study Scots pine respo ...
carbon sequestration; climate change; ecosystem services; ecosystems; farm income; groundwater; hydrologic models; land use; landscapes; meadows; peat; prediction; rain; sea level; soil salinization; time series analysis; Baltic Sea
Abstract:
... We present a framework to relate the provision of multiple, interacting ecosystem services to climate change and land use adaptation, by combining hydrological process models with statistical species’ distribution models and transfer functions to upscale plot data to the landscape scale. Functional traits of the projected plant communities predict provisional and species conservation services, whe ...
Bacillariophyceae; biomass; body size; climate change; data collection; ecosystems; environmental management; functional diversity; indicator species; primary productivity; salinity; t-test; wind
Abstract:
... The responses of biotic communities and ecosystems to climate change may be abrupt and non-linear. Thus, resolving ecological threshold mechanisms is crucial for understanding the consequences of climate change and for improving environmental management. Here, we present a study on the threshold responses of benthic diatom communities that are an important component of all aquatic environments and ...
air pollution; air quality; case studies; climate; climate change; cost benefit analysis; cost effectiveness; ecotoxicology; environmental economics; environmental management; eutrophication; human health; issues and policy; life cycle assessment; marine environment; risk; social welfare; socioeconomic factors; willingness to pay; Baltic Sea
Abstract:
... Shipping is an activity responsible for a range of different pressures affecting the marine environment, air quality and human welfare. The methodology on how ship emissions impact air quality and human health are comparatively well established and used in cost-benefit analysis of policy proposals. However, the knowledge base is not the same for impacts on the marine environment and a coherent env ...
... Supralittoral and shallow water seaweed communities are particularly exposed to impacts such as climate change and disturbance by humans. Therefore, their classification, the study of composition, and the monitoring of their structural changes are particularly important. A phytosociological survey of the supralittoral and upper sublittoral vegetation of the South West Baltic Sea revealed eight phy ...
Caroline Hallin; Jacobus L. A. Hofstede; Grit Martinez; Jürgen Jensen; Nina Baron; Thorsten Heimann; Aart Kroon; Arne Arns; Björn Almström; Per Sørensen; Magnus Larson
... From November 12th to 13th in 1872, an extreme coastal flood event occurred in the south Baltic Sea. An unusual combination of winds created a storm surge reaching up to 3.5 m above mean sea level, which is more than a meter higher than all other observations over the past 200 years. On the Danish, German, and Swedish coasts, about 300 people lost their lives. The consequences of the storm in Denm ...
animal husbandry; case studies; climate change; crop production; eutrophication; intensive farming; livestock; models; nitrogen; phosphorus; rivers; watersheds; Baltic Sea; Finland
Abstract:
... This paper introduces a framework for extending global climate and socioeconomic scenarios in order to study agricultural nutrient pollution on an individual catchment scale. Our framework builds on and extends Representative Concentration Pathways (RCPs) and Shared Socioeconomic Pathways (SSPs) at the spatial and temporal scales that are relevant for the drivers of animal husbandry, manure recycl ...
Zostera marina; climate change; data collection; eutrophication; nitrogen; refuge habitats; seagrasses; water quality; Baltic Sea
Abstract:
... Global losses over the 20th century placed seagrass ecosystems among the most threatened ecosystems in the world, with eutrophication, and associated deterioration of the submarine light environment identified as the main driver. Growing appreciation of the ecological and societal benefits of healthy seagrass meadows has stimulated efforts to protect and restore them, largely focused on reducing n ...
... Climate change will include a decrease in seawater salinity in the Baltic Sea. We quantified the effects of the projected future desalination on survival of the early life stage of the littoral herbivore Idotea balthica. We collected egg-bearing Idotea from three range-margin Baltic Sea populations, we exposed half of each brood to either current (6‰) or future salinity (3.5‰). We genotyped a subs ...
... In this study, we augment the traditional travel cost approach with contingent behavior data for coastal recreation. The objective is to analyze the welfare implications of future changes in the conditions of the Baltic Sea due to climate change and eutrophication. Adding to the literature, we assess the symmetricity of welfare effects caused by improvements and deteriorations in environmental con ...
B. Chubarenko; J. Woelfel; J. Hofmann; S. Aldag; J. Beldowski; J. Burlakovs; T. Garrels; J. Gorbunova; S. Guizani; A. Kupczyk; L. Kotwicki; D. Domnin; M. Gajewska; W. Hogland; K. Kołecka; J. Nielsen; H. Schubert
... The paper distinguishes beach wrack, the marine generated organic part of beach cast, as a separate management object and discusses research questions related to its management and economically viable use. Based on experiences from the Baltic Sea and existing practices from countries with different management systems clear distinction between the management of natural and anthropogenic components ...
... Coastal macroalgae worldwide provide multiple ecological functions and support vital ecosystem services. Thereby, it is important to monitor changes in the extent of benthic macroalgal cover. However, as in situ sampling is costly and time-consuming, areal estimates of macroalgal species cover are often based only on a limited number of samples. This low sampling effort likely yields very biased e ...
... The transport and fate of hydrophobic organic contaminants (HOCs) in the marine environment are closely linked to organic carbon (OC) cycling processes. We investigated the influence of marine versus terrestrial OC origin on HOC fluxes at two Baltic Sea coastal sites with different relative contributions of terrestrial and marine OC. Stronger sorption of the more than four-ring polycyclic aromatic ...
... Marine environments are contaminated with enormous amounts of warfare agents due to military activity and exercise, and the disposal of unused ordnance. Due to corrosion of munition shells, substances are leaking from the warfare materials into the environment. It has to be expected that climate change will influence munition corrosion and distribution of their content. Although there is no doubt ...
... Climate change and pollution are some of the greatest anthropogenic threats to wild animals. Transgenerational plasticity—when parental exposure to environmental stress leads to changes in offspring phenotype—has been highlighted as a potential mechanism to respond to various environmental and anthropogenic changes across taxa. Transgenerational effects may be mediated via multiple mechanisms, suc ...
climate change; climate models; coasts; time series analysis; water; water waves; wind speed; Baltic Sea
Abstract:
... In this study, the projected future long-term changes of the local wave conditions at the German Baltic Sea coast over the course of the 21st century are analyzed and assessed with special focus on model agreement, statistical significance and ranges/spread of the results. An ensemble of new regional climate model (RCM) simulations with the RCM REMO for three RCP forcing scenarios was used as inpu ...
Bengt Karlson; Per Andersen; Lars Arneborg; Allan Cembella; Wenche Eikrem; Uwe John; Jennifer Joy West; Kerstin Klemm; Justyna Kobos; Sirpa Lehtinen; Nina Lundholm; Hanna Mazur-Marzec; Lars Naustvoll; Marnix Poelman; Pieter Provoost; Maarten De Rijcke; Sanna Suikkanen
... Harmful algal blooms (HAB) are recurrent phenomena in northern Europe along the coasts of the Baltic Sea, Kattegat-Skagerrak, eastern North Sea, Norwegian Sea and the Barents Sea. These HABs have caused occasional massive losses for the aquaculture industry and have chronically affected socioeconomic interests in several ways. This status review gives an overview of historical HAB events and summa ...
air temperature; case studies; climate change; cost effectiveness; forest ecosystems; humans; hydrometeorology; landscapes; normalized difference vegetation index; seawater; time series analysis; wind speed; Baltic Sea
Abstract:
... Coastal dunes are recognized as one of the most threatened ecosystems, the formation of which mainly depends on two opposite processes—sand dunes overgrowth and formation of open dunes. The application of cost-effective remote sensing methods permits monitoring the interaction of these two processes over a large area and long periods of time. Therefore in this study we assessed the links between h ...
... Due to changing climate conditions, such inland seas as the Baltic are expected to become more eutrophicated and less saline (causing lower availability of sulphates). This may promote methanogenesis as the main process of organic matter (OM) degradation in marine sediments. Presence of methane, in turn, may affect biogeochemical cycling of many elements, including iron. Thus, in the present study ...
algorithms; autumn; climate change; coastal zone management; coasts; data collection; fish behavior; floods; image analysis; macroalgae; mixing; particulates; remote sensing; runoff; seasonal variation; sediments; spring; storms; surface water; turbidity; water waves; Baltic Sea
Abstract:
... Suspended particulate matter (SPM) consists both of an organic (OSPM) and an inorganic fraction (ISPM) and the latter can be used as an indicator for coastal influence in the Baltic Sea. The concentration of SPM can be derived from particle scatter if the specific scattering properties of the respective water body are known. In this paper we show that likewise, ISPM can be derived reliably from re ...
... The Baltic Sea is a heavily impacted ecosystem with multiple pressures acting simultaneously. In order to quantify ecosystem impacts of integrated climate change and eutrophication pressures under constant high fishing pressure, and to support decision-making and policies in generating environmental and economic sustainable systems, the Baltic Atlantis holistic and mechanistic ecosystem model was ...
air; air temperature; climate; climate change; coasts; dynamics; heat; mussels; oceans; recreation; sea ice; summer; surface water temperature; uncertainty; warm season; wind; Baltic Sea; Europe; North Sea
Abstract:
... The majority of regional climate change assessments for the Euro-CORDEX region is based on high resolution atmosphere models. These models use prescribed lower boundary conditions, such as sea surface temperatures (SST) from global ocean General Circulation Models (GCMs), that do not respond to changes simulated by the regional atmosphere model, thus lacking an important feedback to the atmosphere ...
Pedro R. Almeida; Hiroaki Arakawa; Kimmo Aronsuu; Cindy Baker; Stevie-Rae Blair; Laurent Beaulaton; Ana F. Belo; Jane Kitson; Aleksandr Kucheryavyy; Boyd Kynard; Martyn C. Lucas; Mary Moser; Ben Potaka; Atso Romakkaniemi; Robertas Staponkus; Sam Tamarapa; Seiji Yanai; Gang Yang; Tao Zhang; Ping Zhuang
... Three anadromous lamprey species support important commercial fisheries in the northern hemisphere, sea lamprey in the Iberian Peninsula and France, European river lamprey in the Baltic Sea countries and Russia, and Arctic lamprey in Russia. Pacific lamprey, Caspian lamprey, Korean lamprey and pouched lamprey are harvested for subsistence and local commerce on the Pacific coast of North America, a ...
... During this study, the effects of epiphytic filamentous algae on the survival of demersal spawned fish eggs were investigated in one of the most important spawning grounds of herring in the western Baltic Sea, which is subject to intense and ongoing eutrophication. In coastal marine ecosystems all over the world, eutrophication is a primary water quality issue, often resulting in mass developments ...
... For many coastal areas including the Baltic Sea, ambitious nutrient abatement goals have been set to curb eutrophication, but benefits of such measures were normally not studied in light of anticipated climate change. To project the likely responses of nutrient abatement on eelgrass (Zostera marina), we coupled a species distribution model with a biogeochemical model, obtaining future water turbid ...
Cyanobacteria; biomass; climate change; eutrophication; nitrogen fixation; nutrient availability; phytoplankton; salinity; summer; temperature; total phosphorus; water quality; watersheds; Baltic Sea
Abstract:
... We utilized the trait-based approach in a novel way to examine how specific phytoplankton traits are related to physical features connected to global change, water quality features connected to catchment change, and nutrient availability connected to nutrient loading. For the analyses, we used summertime monitoring data originating from the coastal northern Baltic Sea and generalized additive mixe ...
... The brackish water Baltic Sea is strongly influenced by irregular saline water inflows. Fewer inflow events since the 1980s have resulted in a decrease in salinity, and will according to predicted climate change continue to decrease. The newly described Baltic flounder Platichthys solemdali has adapted to reproduction at low salinity conditions since it colonized the Baltic Sea 7000 years BP; in t ...
Gammarus; biodiversity; climate change; community structure; environmental impact; indigenous species; introduced species; invasive species; lead; life history; methodology; prediction; salinity; seawater; Baltic Sea; Europe
Abstract:
... AIM: The spread of invasive non‐native species (INNS) will pose major threats to global biodiversity over the coming decades. However, predicting how key effects of climate change will influence the abilities of INNS to establish and exert ecological impact is a major challenge. One overlooked aspect of global change is the expected freshening of certain marine systems, which may interact with INN ...
case studies; climate change; coastal water; coastal zone management; coasts; ecosystems; eutrophication; freshwater; nitrogen; nutrient management; phosphorus; water quality; Baltic Sea
Abstract:
... Coastal eutrophication is a common problem worldwide, with main drivers including land-based freshwater and nutrient discharges, as well as hydroclimatic and open sea conditions. This study investigates the combined effects of different hydroclimatic and eutrophication management scenarios on coastal water quality and ecological status. As a case study we consider and simulate these scenarios for ...
... Climate change is projected to cause increased inflow of terrestrial dissolved organic matter to coastal areas in northerly regions. Estuarine bacterial community will thereby receive larger loads of organic matter and inorganic nutrients available for microbial metabolism. The composition of the bacterial community and its ecological functions may thus be affected. We studied the responses of bac ...
... This introductory chapter to our Environment International VSI does not need an abstract and therefore we just include our recommendations below in order to proceed with the resubmission. Future work should examine waterbirds as food web sentinels of multiple stressors as well as Baltic Sea food web dynamics of hazardous substances and how climate change may modify it. Also, future work should aim ...
... Water samples from the different basins of the Baltic Sea and North Sea were collected during four cruises taken place in 2016–2017. Altogether 60 water samples for ³H activity concentration and 120 water samples for stable isotopes ratio (δ¹⁸O and δ²H) were analysed. Exceptionally strong inflow activity from North Sea to the Baltic Sea occurred prior our surveys. The data obtained enabled compreh ...
... Almost every summer, dense blooms of filamentous cyanobacteria are formed in the Baltic Sea. These blooms may cause problems for tourism and ecosystem services, where surface accumulations and beach fouling are commonly occurring. Future changes in environmental drivers, including climate change and other anthropogenic disturbances, may further enhance these problems. By compiling monitoring data ...
... One of the major tasks in environmental protection is monitoring the coast for negative impacts due to climate change and anthropopressure. Remote sensing techniques are often used in studies of impact assessment. Topographic and bathymetric procedures are treated as separate measurement methods, while methods that combine coastal zone analysis with underwater impacts are rarely used in geotechnic ...
... The potential response of occurrence of charophyte and angiosperm communities to climate change in the brackish environment of the Baltic Sea was investigated using the boosted regression trees (BRT) modelling method. The aim of the study was to analyse sensitivity of various species to climate change and to predict the changes in species’ distribution under projected changes of environmental vari ...
... In the Western Baltic Sea, climate change is happening at much faster rate than in most other seas and organisms are additionally exposed to a steep and variable salinity gradient. Climate change has previously been shown to affect parasite transmission in other marine ecosystems, yet little is known about potential effects of warming and desalination on parasite–host interactions. In laboratory e ...
Thomas Gruber; Jonas Ågren; Detlef Angermann; Artu Ellmann; Andreas Engfeldt; Christoph Gisinger; Leszek Jaworski; Simo Marila; Jolanta Nastula; Faramarz Nilfouroushan; Xanthi Oikonomidou; Markku Poutanen; Timo Saari; Marius Schlaak; Anna Światek; Sander Varbla; Ryszard Zdunek
... Traditionally, sea level is observed at tide gauge stations, which usually also serve as height reference stations for national leveling networks and therefore define a height system of a country. One of the main deficiencies to use tide gauge data for geodetic sea level research and height systems unification is that only a few stations are connected to the geometric network of a country by opera ...
Christian Sonne; Ursula Siebert; Katharina Gonnsen; Jean-Pierre Desforges; Igor Eulaers; Sara Persson; Anna Roos; Britt-Marie Bäcklin; Kaarina Kauhala; Morten Tange Olsen; Karin C. Harding; Gabriele Treu; Anders Galatius; Emilie Andersen-Ranberg; Stephanie Gross; Jan Lakemeyer; Kristina Lehnert; Su Shiung Lam; Wanxi Peng; Rune Dietz
... Here we review contaminant exposure and related health effects in six selected Baltic key species. Sentinel species included are common eider, white-tailed eagle, harbour porpoise, harbour seal, ringed seal and grey seal. The review represents the first attempt of summarizing available information and baseline data for these biomonitoring key species exposed to industrial hazardous substances focu ...
... Aquatic ecosystems face a multitude of environmental stressors, including warming and acidification. While warming is expected to have a pronounced effect on plankton communities, many components of the plankton seem fairly robust towards realistic end-of-century acidification conditions. However, interactions of the two stressors and the inclusion of further factors such as nutrient concentration ...
Clupea harengus; climate; climate change; docosahexaenoic acid; ecosystems; eicosapentaenoic acid; energy content; energy flow; environmental factors; fatty acid composition; herring; lipid content; models; muscles; physiology; population density; seawater; spawning; summer; water salinity; Baltic Sea
Abstract:
... Global climate change can affect the energy content of fish by altering their lipid physiology and consumption. We investigated the effects of different environmental stressors on the lipid content of the Baltic herring (Clupea harengus membras) from spawning ground samples that were collected annually in the northern Baltic Sea. During 1987–2014, the average lipid content of herring muscle decrea ...
... Marine macrophytes and ‐algae have undergone major changes in abundance and species composition over the last decades, primarily due to eutrophication. However, comparable studies conducted in the mid 20th century are rare, but potentially valuable for enabling insight into changes in the benthic communities from the early onset of the eutrophication of the Baltic Sea. In the present study, the su ...
Mahasweta Saha; Francisco R. Barboza; Paul J. Somerfield; Balsam Al‐Janabi; Miriam Beck; Janina Brakel; Maysa Ito; Christian Pansch; Jennifer C. Nascimento‐Schulze; Stina Jakobsson Thor; Florian Weinberger; Yvonne Sawall
... Marine heatwaves have been observed worldwide and are expected to increase in both frequency and intensity due to climate change. Such events may cause ecosystem reconfigurations arising from species range contraction or redistribution, with ecological, economic and social implications. Macrophytes such as the brown seaweed Fucus vesiculosus and the seagrass Zostera marina are foundation species i ...
... Over the past few centuries, sturgeons have experienced decline and, in some cases, extinction worldwide caused primarily by habitat loss stemming from human activities and overfishing. The vulnerability of sturgeons to climate change and anthropogenic impacts is associated with their life characteristics, e.g., long life span, slow growth, late maturation, and specific spawning habitat requiremen ...
Marianne Zandersen; Kari Hyytiäinen; H. E. Markus Meier; Maciej T. Tomczak; Barbara Bauer; Päivi E. Haapasaari; Jørgen Eivind Olesen; Bo G. Gustafsson; Jens Christian Refsgaard; Erik Fridell; Sampo Pihlainen; Martin D. A. Le Tissier; Anna-Kaisa Kosenius; Detlef P. Van Vuuren
atmospheric deposition; climate; climate change; ecosystems; fisheries; human development; land use change; pollution; pollution control; shipping; socioeconomics; wastewater treatment; Baltic Sea; Northern European region
Abstract:
... Long-term scenario analyses can be powerful tools to explore plausible futures of human development under changing environmental, social, and economic conditions and to evaluate implications of different approaches to reduce pollution and resource overuse. Vulnerable ecosystems like the Baltic Sea in North-Eastern Europe tend to be under pressure from multiple, interacting anthropogenic drivers bo ...
basins; biodiversity; climate change; climatic factors; models; rain; runoff; salinity; summer; surface water temperature; wind; Baltic Sea; Northern European region
Abstract:
... This model study investigates summer hydrographic changes in response to climate projections following the CMIP5 RCP8.5 scenario. We use the high resolution regional coupled ocean–sea ice–atmosphere model RCA4–NEMO to downscale an ensemble of five global climate projections with a main focus on the Baltic Sea and neighboring shelf basins to the west. We find consistently across the ensemble a nort ...
climate change; environment; fisheries management; international cooperation; questionnaires; riparian areas; salmon; social environment; stakeholders; Baltic Sea
Abstract:
... In the Baltic Sea region, salmon are valued for the ecological, economic, and cultural benefits they provide. However, these fish are threatened due to historical overfishing, disease, and reduced access to spawning rivers. Climate change may pose another challenge for salmon management. Therefore, we conducted a problem-framing study to explore the effects climate change may have on salmon and th ...
Thiemo Karwinkel; Ingrid L. Pollet; Sandra Vardeh; Helmut Kruckenberg; Petr Glazov; Julia Loshchagina; Alexander Kondratyev; Benjamin Merkel; Jochen Bellebaum; Petra Quillfeldt
... BACKGROUND: The long-tailed duck (Clangula hyemalis) was categorized as ´Vulnerable` by the IUCN after a study revealed a rapid wintering population decline of 65% between 1992–1993 and 2007–2009 in the Baltic Sea. As knowledge about the European long-tailed duck’s life cycle and movement ecology is limited, we investigate its year-round spatiotemporal distribution patterns. Specifically, we aimed ...
Aakash Chawade; Rita Armoniené; Gunilla Berg; Gintaras Brazauskas; Gunilla Frostgård; Mulatu Geleta; Andrii Gorash; Tina Henriksson; Kristiina Himanen; Anne Ingver; Eva Johansson; Lise Nistrup Jørgensen; Mati Koppel; Reine Koppel; Pirjo Makela; Rodomiro Ortiz; Wieslaw Podyma; Thomas Roitsch; Antanas Ronis; Jan T. Svensson; Pernilla Vallenback; Martin Weih
... The Baltic Sea is one of the largest brackish water bodies in the world. Eutrophication is a major concern in the Baltic Sea due to the leakage of nutrients to the sea with agriculture being the primary source. Wheat (Triticum aestivum L.) is the most widely grown crop in the countries surrounding the Baltic Sea and thus promoting sustainable agriculture practices for wheat cultivation will have a ...
... 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 ...
algal blooms; climate change; decision making; ecosystems; eutrophication; governance; hydrology; planning; risk; water quality; watersheds; Baltic Sea; Great Lakes
Abstract:
... The Baltic Sea and the North American Great Lakes are two transboundary watersheds that are at risk from similar environmental stressors including nutrient enrichment, hydrologic modifications, chemicals of emerging concern, and the overarching stressor of climate change. Although located in different geographical regions of the world, both watersheds are governed in a multilevel governance settin ...
... Mercury (Hg) can be introduced into the marine environment in many different ways. In the case of the Baltic Sea, rivers and atmospheric deposition are the predominant ones. However, in the face of ongoing climate change, a new potential source, coastal erosion, is starting to become more important and is currently considered to be the third largest source of Hg in the Gdansk Basin region. It is e ...
Trine Markussen; Elisabeth M. Happel; Jonna E. Teikari; Vimala Huchaiah; Johannes Alneberg; Anders F. Andersson; Kaarina Sivonen; Lasse Riemann; Mathias Middelboe; Veljo Kisand
bacteria; bacterial communities; bacterioplankton; biogeochemical cycles; climate change; community structure; dissolved organic matter; ecosystems; energy flow; environmental factors; marine environment; metagenomics; models; nutrient content; oxygen; river water; Baltic Sea
Abstract:
... Bacteria are major drivers of biogeochemical nutrient cycles and energy fluxes in marine environments, yet how bacterial communities respond to environmental change is not well known. Metagenomes allow examination of genetic responses of the entire microbial community to environmental change. However, it is challenging to link metagenomes directly to biogeochemical process rates. Here, we investig ...
... In the Baltic Sea hypoxia has been increased considerably since the first oxygen measurements became available in 1898. In 2016 the annual maximum extent of hypoxia covered an area of the sea bottom of about 70,000 km², comparable with the size of Ireland, whereas 150 years ago hypoxia was presumably not existent or at least very small. The general view is that the increase in hypoxia was caused b ...
... Warming is one of the most dramatic aspects of climate change and threatens future ecosystem functioning. It may alter primary productivity and thus jeopardize carbon sequestration, a crucial ecosystem service provided by coastal environments. Fucus vesiculosus is an important canopy-forming macroalga in the Baltic Sea, and its main consumer is Idotea balthica. The objective of this study is to un ...
... The isotopic studies of atmospheric precipitations, snow surveys, surface and groundwaters, which were conducted in 2005–2017 in the Baltic Sea – White Sea region, are presented. Groundwater formed during the last cold period under the influence of the Eemian Sea and the Baltic Ice Lake, and also cryogenic metamorphism was discovered. It was discovered that some relatively small rivers pose as reg ...
... The Baltic Sea is suffering from eutrophication caused by nutrient discharges from land to sea, and these loads might change in a changing climate. We show that the impact from climate change by mid-century is probably less than the direct impact of changing socioeconomic factors such as land use, agricultural practices, atmospheric deposition, and wastewater emissions. We compare results from dyn ...
European Union; affordability; climate change; energy efficiency; energy policy; markets; multi-criteria decision making; prices; renewable energy sources; Baltic Sea; Denmark; Latvia
Abstract:
... The European Union (EU) has set ambitious goals for climate change and energy in its pursued policies (20% of renewable energy until 2020, 27% until 2030, and the aim to become the global leader in energy produced by renewable energy sources). Even more ambitious goals are established in the strategy of Energy 2050. Today European energy policy is oriented towards energy security, expansion of ene ...
... Climate change, energy use and food security are the main challenges that our society is facing nowadays. Biofuels and feedstock from microalgae can be part of the solution if high and continuous production is to be ensured. This could be attained in year‐round, low cost, outdoor cultivation systems using strains that are not only champion producers of desired compounds but also have robust growth ...
Jørgen E. Olesen; Christen D. Børgesen; Fatemeh Hashemi; Mohamed Jabloun; Dominika Bar-Michalczyk; Przemyslaw Wachniew; Anna J. Zurek; Alena Bartosova; Thomas Bosshard; Anne L. Hansen; Jens C. Refsgaard
climate; climate change; climate models; hydrologic models; land use; leaching; nitrates; nitrogen; nutrients; pollution load; surface water; water pollution; water quality; watersheds; Baltic Sea; Denmark; Poland
Abstract:
... Pollution with excess nutrients deteriorate the water quality of the Baltic Sea. The effect of combined land use and climate scenarios on nitrate leaching and nitrogen (N) loads to surface waters from two Baltic Sea catchments (Norsminde in Denmark and Kocinka in Poland) was explored using different models; the NLES and Daisy models for nitrate leaching, and MIKE SHE or MODFLOW/MT3DMS for N transp ...
benthic organisms; climate change; crabs; demography; ecological invasion; estuaries; females; fish; juveniles; larvae; monitoring; population growth; population size; predators; water temperature; Baltic Sea
Abstract:
... Long-term population data of marine invaders are rarely collected although it provides fundamental knowledge of the invasion dynamics that is important for evaluating the impacts, interactions and range expansion of the invader and for management purposes. During a 6-year monitoring period, we studied the dynamics and population demographic characteristics of the newly introduced mud crab Rhithrop ...
... In Finland peat has been used for energy production, for agricultural and horticultural and environmental purposes. Success of peat production depends on weather. Dry and sunny conditions are needed, and weather forecasts give the basis for the planning the activities of relatively short production season. In 2017, by request of the leading Finnish peat production company Vapo, Finnish Meteorologi ...
... Climate change has been altering the ocean environment, affecting as a consequence the biological communities including microorganisms. We performed a mesocosm experiment to test whether biodiversity loss caused by one stressor would influence plankton community sensitivity to a subsequent stressor, as envisioned in Vinebrooke’s multiple stressor concept. A natural Baltic Sea diatom-dominated phyt ...
... Coastal benthic biodiversity is under increased pressure from climate change, eutrophication, hypoxia, and changes in salinity due to increase in river runoff. The Baltic Sea is a large brackish system characterized by steep environmental gradients that experiences all of the mentioned stressors. As such it provides an ideal model system for studying the impact of on‐going and future climate chang ...
... Stochastic upwelling of seawater in the Baltic Sea from the deep, anoxic bottoms may bring low-pH water rich in CO₂ close to the surface. Such events may become more frequent with climate change and ongoing ocean acidification (OA). Photoautotrophs, such as macroalgae, which are important foundation species, have been proposed to benefit from increased carbon availability due to reduced energetic ...
... Climate change is threating species' persistence worldwide. To predict species responses to climate change we need information not just on their environmental tolerance but also on its adaptive potential. We tested how the foundation species of rocky littoral habitats, Fucus vesiculosus, responds to combined hyposalinity and warming projected to the Baltic Sea by 2070–2099. We quantified responses ...
climate change; ecosystem management; ecosystems; governance; land use; stakeholders; water management; watersheds; Baltic Sea; Germany; Latvia; Poland; Sweden
Abstract:
... This study explores visualization-supported dialogues with water management and ecosystem stakeholders from four catchments in Sweden, Latvia, Germany and Poland. An interactive visualization tool was designed to present information regarding modelled effects of chosen future pathways including different measures that address ecosystem issues under present and future scenarios of land use and clim ...
... Markgrafenheide-Hütelmoor covers a total area of 1000 ha (about 490 ha are coastal moor) and a coastline of about 6 km. This touristy area belongs to the city of Rostock in Germany. As response to sea level rise and heavy coastal erosion, the small seaside resort Markgrafenheide received a comprehensive storm surge protection until 2006. Subsequently, the adjacent Hütelmoor was flooded with the ai ...
... Jellyfish blooms are unpredictable, unsustainable events, frequently affecting aquatic ecosystems severely. Of particular interest are the consequences of environmental change for jellyfish populations, especially in semi‐enclosed habitats. Regional and seasonal changes in water chemistry and physics may control the distribution of sessile polyps in the Baltic Sea, hence potentially driving the po ...
... Rivers transport large amounts of allochthonous organic matter (OM) to the ocean every year, but there are still fundamental gaps in how allochthonous OM is processed in the marine environment. Here, we estimated the relative contribution of allochthonous OM (allochthony) to the biomass of benthic and pelagic consumers in a shallow coastal ecosystem in the northern Baltic Sea. We used deuterium as ...
Michael L. Zettler; Jan Beermann; Jennifer Dannheim; Brigitte Ebbe; Michael Grotjahn; Carmen-Pia Günther; Manuela Gusky; Britta Kind; Ingrid Kröncke; Ralph Kuhlenkamp; Claus Orendt; Eike Rachor; Anja Schanz; Alexander Schröder; Lisa Schüler; Jan Witt
... The present compilation is the first attempt to generate a comprehensive list of all macrozoobenthic species recorded at least once in the German regions of the North Sea and Baltic Sea including non-indigenous species and freshwater species which occurred in brackish waters (estuaries, bays, fjords etc.). Based on the data of several research institutes and consultancies, the macrozoobenthic spec ...
... Though the number of climate-change-related agro-phenological investigations are growing rapidly, the attention paid to spring crops has been much less than to winter ones. The objective of the current study was to investigate long-term temporal and spatial trends of spring barley phenology and to project changes in the timing and duration of different phenological phases during the current centur ...
... The Baltic Sea is currently the largest marine hypoxic (O2<2mgL⁻¹) ‘dead zone’ following excessive nutrient input from anthropogenic activities over the past century. Widespread hypoxia has previously developed in the Baltic Sea during the Holocene Thermal Maximum (HTM; 8–4ka before present; BP) and the Medieval Climate Anomaly (MCA; 1.4–0.7ka BP). Here we study the mechanisms that contributed to ...
... Knowledge and understanding of geographic distributions of species is crucial for many aspects in ecology, conservation, policy making and management. In order to reach such an understanding, it is important to know abiotic variables that impact and drive distributions of native and non-native species. We used an existing long-term macrobenthos database for species presence-absence information and ...
... Intensifying environmental changes due to climate change affect marine species worldwide. Herein, we experimentally tested if the combination of forecasted warming and hyposalinity adversely affected growth, receptacle formation, and photosynthesis of three marginal populations of the brown alga Fucus from the northern Baltic Sea. Growth was not impaired by the projected consequences of climate ch ...
... Capsule: One of the southernmost populations of the Black Guillemot Cepphus grylle is currently endangered, and the risk may be exacerbated by climate change. Aims: We evaluated the future vulnerability of the Black Guillemot by predicting the impact of climate change on the geographic distribution of its breeding and foraging range in the Baltic Sea. Methods: We used MaxEnt, a species distributio ...
Fucus vesiculosus; acidification; benthic organisms; bioassays; carbon dioxide; climate change; community structure; ecosystems; fouling; grazing; habitats; herbivores; long term experiments; macroalgae; seasonal variation; summer; winter; Baltic Sea
Abstract:
... Human‐induced ocean warming and acidification have received increasing attention over the past decade and are considered to have substantial consequences for a broad range of marine species and their interactions. Understanding how these interactions shift in response to climate change is particularly important with regard to foundation species, such as the brown alga Fucus vesiculosus. This macro ...
... The critically endangered Atlantic sturgeon, Acipenser sturio, inhabited the Russian section of the Baltic Sea basin until recent times. Eight rivers were indicated as their habitats in local literature. The Atlantic surgeon disappeared in Russia because of overfishing, not because of habitat loss. Nowadays, potential spawning grounds for sturgeons occur in six rivers of the Russian section of the ...
... AIM: The Baltic Sea forms a unique regional sea with its salinity gradient ranging from marine to nearly freshwater conditions. It is one of the most environmentally impacted brackish seas worldwide, and the low biodiversity makes it particularly sensitive to anthropogenic pressures including climate change. We applied a novel combination of models to predict the fate of one of the dominant founda ...
... Climate change is acknowledged to affect directly macroalgal performance but its indirect effect through changes in algal interaction with herbivores remains poorly understood. To study effects of climate change on a macroalga–herbivore interaction, we exposed three range-margin Baltic Sea populations of Fucus (60°N 39°E, 61°N 21°E, 62°N 21°E) in September 2015 to current (15.1 °C; 5.2 PSU) and pr ...
... Metabarcoding is a method that combines high-throughput DNA sequencing and DNA-based identification. Previously, this method has been successfully used to target spatial variation of eukaryote communities in marine sediments, however, the temporal changes in these communities remain understudied. Here, we follow the temporal changes of the eukaryote communities in Baltic Sea surface sediments coll ...
Soil and Water Assessment Tool model; basins; climate; climate change; forests; issues and policy; land use change; reproduction; rivers; runoff; water management; Baltic Sea
Abstract:
... Combined and separate impact of climate and land use change on the future river runoff was assessed in the eastern Baltic Sea region by using the SWAT (The Soil and Water Assessment Tool) hydrological model. SWAT was applied to assess how plausible changes in climate and land use may affect the river hydrology by the end of the century. The model was calibrated and validated for a period from 1970 ...
Hordeum vulgare; agricultural runoff; carrying capacity; climate change; climatic factors; crop management; crop production; ecosystems; emissions; eutrophication; life cycle impact assessment; models; nitrates; nitrogen; production technology; spring barley; temporal variation; uncertainty; Baltic Sea; Denmark; North Sea
Abstract:
... Nitrate concentration and runoff are site-specific and driven by climatic factors and crop management. As such, nitrate emissions may increase in the future due to climate change, affecting the marine eutrophication mechanism. In this context, and considering the case of spring barley production in Denmark, the paper has two objectives: (i) to estimate the present and future marine eutrophication ...
air temperature; atmospheric circulation; climate change; climatic factors; cooling; human settlements; humans; oceanography; seawater; society; surface water temperature; winter; Baltic Sea; Germany; Scandinavia; Sweden
Abstract:
... In Europe, the transition from hunter–gatherer–fisher-based communities into societies mainly relying on farming was spread from the southeast towards the north and west during the Holocene. In central Germany, farming was adopted at ~7500 cal. yr BP, whereas the shift is evident at ~6000–5500 cal. yr BP in northern Germany and southern Scandinavia. Consequently, farming techniques were available ...
... Extreme Event Attribution has raised increasing attention in climate science in the last years. It means to judge the extent to which certain weather-related extreme events have changed due to human influences on climate with probabilistic statements. Extreme Event Attribution is often anticipated to spur more than just scientific ambition. It is able to provide answers to a commonly asked questio ...
Marie Maar; Momme Butenschön; Ute Daewel; Anja Eggert; Wei Fan; Solfrid S. Hjøllo; Marc Hufnagl; Martin Huret; Rubao Ji; Geneviève Lacroix; Myron A. Peck; Hagen Radtke; Sévrine Sailley; Matteo Sinerchia; Morten D. Skogen; Morgane Travers-Trolet; Tineke A. Troost; Karen van de Wolfshaar
biomass; climate change; ecosystems; food webs; hydrodynamics; models; mortality; phytoplankton; summer; temperature; water quality; zooplankton; Baltic Sea; North Sea
Abstract:
... The present study describes the responses of summer phytoplankton biomass to changes in top-down forcing (expressed as zooplankton mortality) in three ecosystems (the North Sea, the Baltic Sea and the Nordic Seas) across different 3D ecosystem models. In each of the model set-ups, we applied the same changes in the magnitude of mortality (±20%) of the highest trophic zooplankton level (Z1). Model ...
... The main source of toxic mercury (Hg) in the human body is the consumption of fish and seafood. Therefore, it is particularly important to indicate the processes that condition Hg accumulation in marine organisms, especially those in the basal links of the food chain, which are rather poorly investigated compared to top predators. The aim of the study was to determine the seasonal variability of H ...
climate; climate change; greenhouse gas emissions; mixing; models; temperature profiles; wind; Baltic Sea
Abstract:
... An ocean model covering the Baltic Sea area is forced by several climate scenarios for a period extending from 1961 to 2100. The Baltic Sea overturning circulation is then analyzed. The analysis shows that this circulation decreases between the end of the 20th century and the end of the 21st century, and that the decrease is amplified in the case of the strongest greenhouse gas emission scenarios, ...
Jennifer R. Griffiths; Martina Kadin; Francisco J. A. Nascimento; Tobias Tamelander; Anna Törnroos; Stefano Bonaglia; Erik Bonsdorff; Volker Brüchert; Anna Gårdmark; Marie Järnström; Jonne Kotta; Martin Lindegren; Marie C. Nordström; Alf Norkko; Jens Olsson; Benjamin Weigel; Ramunas Žydelis; Thorsten Blenckner; Susa Niiranen; Monika Winder
... Benthic–pelagic coupling is manifested as the exchange of energy, mass, or nutrients between benthic and pelagic habitats. It plays a prominent role in aquatic ecosystems, and it is crucial to functions from nutrient cycling to energy transfer in food webs. Coastal and estuarine ecosystem structure and function are strongly affected by anthropogenic pressures; however, there are large gaps in our ...
... To predict the effects of climate change, we first need information on both the current tolerance ranges of species and their future adaptive potential. Adaptive responses may originate either in genetic variation or in phenotypic plasticity, but the relative importance of these factors is poorly understood. Here, we tested the tolerance of Fucus radicans to the combination of hyposalinity and war ...
... Changes in global climate patterns are affecting marine ecosystems, challenging species’ environmental tolerances, and driving shifts in their distributions. In the Baltic Sea, a brackish water body with low biodiversity, the isopod Idotea balthica is a key herbivore species that has a strong top–down effect on habitat-forming macrophytes. Our aim is to understand how the predicted future combinat ...
... Using outdoor mesocosms we investigated the relative importance of the direct and indirect (here: altered grazing) effects of seawater warming on benthic microalgae in a Baltic Sea Fucus vesiculosus (Phaeophyceae) system during the spring season. Seawater warming had a positive main effect on microalgal total biomass accrual and growth rate and on total mesograzer abundance and biomass. Moreover, ...
climate; climate change; cost effectiveness; economic impact; greenhouse gas emissions; greenhouse gases; issues and policy; models; pollution load; wastewater; water quality; Baltic Sea
Abstract:
... This paper explores the scope for simultaneously managing nutrient abatement and climate change mitigation in the Baltic Sea (BS) region through the implementation of a selection of measures. The analysis is undertaken using a cost-minimisation model for the entire BS region, the BALTCOST model. In the present research, the model has been extended to include greenhouse gas (GHG) emissions effects, ...
... Climate change predictions indicate that coastal and estuarine environments will receive increased terrestrial runoff via increased river discharge. This discharge transports allochthonous material, containing bioavailable nutrients and light attenuating matter. Since light and nutrients are important drivers of basal production, their relative and absolute availability have important consequences ...