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Journal articles on the topic 'Bothnian Sea'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Neumann, Thomas, Herbert Siegel, Matthias Moros, Monika Gerth, Madline Kniebusch, and Daniel Heydebreck. "Ventilation of the northern Baltic Sea." Ocean Science 16, no. 4 (2020): 767–80. http://dx.doi.org/10.5194/os-16-767-2020.

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Abstract. The Baltic Sea is a semi-enclosed, brackish water sea in northern Europe. The deep basins of the central Baltic Sea regularly show hypoxic conditions. In contrast, the northern parts of the Baltic Sea, the Bothnian Sea and Bothnian Bay, are well oxygenated. Lateral inflows or a ventilation due to convection are possible mechanisms for high oxygen concentrations in the deep water of the northern Baltic Sea. In March 2017, conductivity–temperature–depth (CTD) profiles and bottle samples, ice core samples, and brine were collected in the Bothnian Bay. In addition to hydrographic standar

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Mäntyniemi, Samu, Atso Romakkaniemi, Johan Dannewitz, et al. "Both predation and feeding opportunities may explain changes in survival of Baltic salmon post-smolts." ICES Journal of Marine Science 69, no. 9 (2012): 1574–79. http://dx.doi.org/10.1093/icesjms/fss088.

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Abstract Mäntyniemi, S., Romakkaniemi, A., Dannewitz, J., Palm, S., Pakarinen, T., Pulkkinen, H., Gårdmark, A., and Karlsson, O. 2012. Both predation and feeding opportunities may explain changes in survival of Baltic salmon post-smolts. – ICES Journal of Marine Science, 69: 1574–1579. The survival of wild and hatchery-reared post-smolts of salmon (Salmo salar) in the Baltic Sea has declined since the 1990s. Direct observations of the processes affecting survival are, however, lacking. Here, the importance of food availability and predation in regulating post-smolt survival is analysed. Based

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Kallio-Nyberg, Irma, Heikki Peltonen, and Hannu Rita. "Effects of stock-specific and environmental factors on the feeding migration of Atlantic salmon (Salmo salar) in the Baltic Sea." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 5 (1999): 853–61. http://dx.doi.org/10.1139/f99-022.

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Atlantic salmon (Salmo salar L.) stocks in the Baltic Sea are mainly exploited during their sea migration. The offshore fishery in the feeding grounds of these salmon permitted us to analyse the migrations of certain stocks on the basis of tag recovery data. Four salmon stocks from rivers draining into Bothnian Bay (25°E, 65.5°N) were selected for study. During 1984-1991, about 135 000 2-year-old hatchery-reared smolts were tagged and released. We applied logit models, with the site of recovery as a multicategory response variable, to analyse the distribution of tag recoveries in the Baltic Se

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Rajasilta, M., J. Hänninen, and I. Vuorinen. "Decreasing salinity improves the feeding conditions of the Baltic herring (Clupea harengus membras) during spring in the Bothnian Sea, northern Baltic." ICES Journal of Marine Science 71, no. 5 (2014): 1148–52. http://dx.doi.org/10.1093/icesjms/fsu047.

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Abstract The stomach contents of the herring (Clupea harengus membras L.) from the Bothnian Sea, northern Baltic, were analysed during spring 2011 and 2013. The stomachs were full of Limnocalanus macrurus in May and June, and an improvement in the condition of herring was observed when fish started to feed on this prey. The analyses showed that Limnocalanus is currently an important link between lower trophic levels and Baltic herring in the Bothnian Sea.

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Gelting, J., E. Breitbarth, B. Stolpe, M. Hassellöv, and J. Ingri. "Fractionation of iron species and iron isotopes in the Baltic Sea euphotic zone." Biogeosciences Discussions 6, no. 4 (2009): 6491–537. http://dx.doi.org/10.5194/bgd-6-6491-2009.

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Abstract. Measurements of the physiochemical speciation of Fe in the euphotic zone were performed at three different locations, over a well defined salinity gradient, during spring and summer in the Baltic Sea. The average of total Fe changed from 114 nM in the Bothnian Sea, 44 nM at Landsort Deep and 15 nM at Gotland Deep. Particulate Fe (PFe) was the dominating phase at all stations and on average accounted for 75–85% of the total Fe pool. At all three locations, a decrease in total Fe of 80–90% from initial measurements compared to the summer was found. A strong positive correlation between

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Gelting, J., E. Breitbarth, B. Stolpe, M. Hassellöv, and J. Ingri. "Fractionation of iron species and iron isotopes in the Baltic Sea euphotic zone." Biogeosciences 7, no. 8 (2010): 2489–508. http://dx.doi.org/10.5194/bg-7-2489-2010.

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Abstract. To indentify sources and transport mechanisms of iron in a coastal marine environment, we conducted measurements of the physiochemical speciation of Fe in the euphotic zone at three different locations in the Baltic Sea. In addition to sampling across a salinity gradient, we conducted this study over the spring and summer season. Moving from the riverine input characterized low salinity Bothnian Sea, via the Landsort Deep near Stockholm, towards the Gotland Deep in the Baltic Proper, total Fe concentrations averaged 114, 44, and 15 nM, respectively. At all three locations, a decrease

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7

Busse, Svenja, and Pauli Snoeijs. "Gradient responses of diatom communities in the Bothnian Bay, northern Baltic Sea." Nova Hedwigia 74, no. 3-4 (2002): 501–25. http://dx.doi.org/10.1127/0029-5035/2002/0074-0501.

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8

Peltonen, Heikki, and Helge Balk. "The acoustic target strength of herring (Clupea harengus L.) in the northern Baltic Sea." ICES Journal of Marine Science 62, no. 4 (2005): 803–8. http://dx.doi.org/10.1016/j.icesjms.2005.02.001.

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Abstract The hydro-acoustic target strength (TS) of herring (Clupea harengus L.) was estimated from the catch composition of 19 pelagic-trawl hauls and from simultaneous recordings with a split-beam, 38 kHz echosounder. The data were collected in September 2000 during a Bothnian Sea survey in the northern Baltic Sea. The dependence of TS (in dB) on fish length (L, cm) was modelled with the equation TS = a log10 L + b. The fitted model was TS = 16.8 log10 L − 60.0. With a predefined slope of 20 the TS vs. log-fish length relationship was TS = 20 log10 L − 63.9. The analyses suggested that TS wa

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9

Hyttinen, O., A. T. Kotilainen, J. J. Virtasalo, et al. "Holocene stratigraphy of the Ångermanälven River estuary, Bothnian Sea." Geo-Marine Letters 37, no. 3 (2016): 273–88. http://dx.doi.org/10.1007/s00367-016-0490-2.

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10

Yi, P., A. Aldahan, G. Possnert, X. L. Hou, P. He, and B. Wang. "Depth profiles of 129I species in the Bothnian Sea." Journal of Radioanalytical and Nuclear Chemistry 295, no. 2 (2012): 1459–63. http://dx.doi.org/10.1007/s10967-012-1923-7.

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11

HYYTIÄINEN, K., H. AHTIAINEN, and J. HEIKKILÄ. "An integrated simulation model to evaluate national measures for the abatement of agricultural nutrients in the Baltic Sea." Agricultural and Food Science 18, no. 3-4 (2009): 440–59. http://dx.doi.org/10.23986/afsci.5951.

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This study introduces a prototype model for evaluating measures to abate agricultural nutrients in the Baltic Sea from a Finnish national perspective. The stochastic simulation model integrates nutrient dynamics of nitrogen and phosphorus in the sea basins adjoining the Finnish coast, nutrient loads from land and other sources, benefits from nutrient abatement (in the form of recreation and other ecosystem services) and the costs of agricultural abatement activities. The aim of the study is to present the overall structure of the model and to demonstrate its potential using preliminary paramet

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12

Gårdmark, Anna, Örjan Östman, Anders Nielsen, et al. "Does predation by grey seals (Halichoerus grypus) affect Bothnian Sea herring stock estimates?" ICES Journal of Marine Science 69, no. 8 (2012): 1448–56. http://dx.doi.org/10.1093/icesjms/fss099.

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Abstract Gårdmark, A., Östman, Ö., Nielsen, A., Lundström K., Karlsson O., Pönni, J., and Aho, T. 2012. Does predation by grey seals (Halichoerus grypus) affect Bothnian Sea herring stock estimates? – ICES Journal of Marine Science, 69: . Mortality of small pelagic fish due to marine mammals is generally considered to be low compared with other sources of mortality. With recent recoveries of marine mammal predators worldwide, this may no longer hold. The grey seal (Halichoerus grypus) population in the Bothnian Sea has increased fivefold since 1985. Its main prey, herring (Clupea harrengus), i

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Deutsch, B., V. Alling, C. Humborg, F. Korth, and C. M. Mörth. "Tracing inputs of terrestrial high molecular weight dissolved organic matter within the Baltic Sea Ecosystem." Biogeosciences Discussions 9, no. 4 (2012): 4483–512. http://dx.doi.org/10.5194/bgd-9-4483-2012.

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Abstract. To test the hypothesis whether dissolved organic matter (DOM) in a high latitude marginal sea is dominated by terrestrial derived matter 10 stations were sampled along the salinity gradient of the central and northern Baltic Sea and were analyzed for concentrations of dissolved organic carbon as well as δ13C values of high molecular weight DOM. Different end-member-mixing models were applied to quantify the influence of terrestrial DOM and to test for conservative versus non-conservative behavior of the terrestrial dissolved organic matter in the different Baltic Sea basins. The shar

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Deutsch, B., V. Alling, C. Humborg, F. Korth, and C. M. Mörth. "Tracing inputs of terrestrial high molecular weight dissolved organic matter within the Baltic Sea ecosystem." Biogeosciences 9, no. 11 (2012): 4465–75. http://dx.doi.org/10.5194/bg-9-4465-2012.

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Abstract. To test the hypothesis whether high molecular weight dissolved organic matter (HMW-DOM) in a high latitude marginal sea is dominated by terrestrial derived matter, 10 stations were sampled along the salinity gradient of the central and northern Baltic Sea and were analyzed for concentrations of dissolved organic carbon as well as δ13C values of HMW-DOM. Different end-member-mixing models were applied to quantify the influence of terrestrial DOM and to test for conservative versus non-conservative behavior of the terrestrial DOM in the different Baltic Sea basins. The share of terrest

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15

Granskog, Mats A., Kristiina Virkkunen, David N. Thomas, Jens Ehn, Harri Kola, and Tõnu Martma. "Chemical properties of brackish water ice in the Bothnian Bay, the Baltic Sea." Journal of Glaciology 50, no. 169 (2004): 292–302. http://dx.doi.org/10.3189/172756504781830079.

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AbstractThe behavior of majorions, δ18O, dissolved organic carbon (DOC) and trace elements was studied during the initial freezing of low-saline water (3 practical salinity units) in a freezing experiment. Samples were also collected from first-year sea ice from pack ice in the Bothnian Bay, northern Baltic Sea. During initial ice formation, the major-ion ratios in sea ice indicated variable behavior, with some ions showing relative enrichment (sulfate, calcium and magnesium), conservative behavior (sodium) or relative depletion (potassium) compared to sea water at the same salinity. DOC, iron

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NILSSON, JAN. "Allozyme variation of Macoma baltica (L.) in the Bothnian Sea." Hereditas 102, no. 2 (2008): 277–80. http://dx.doi.org/10.1111/j.1601-5223.1985.tb00626.x.

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Soomere, T., and A. Räämet. "Long-term spatial variations in the Baltic Sea wave fields." Ocean Science Discussions 7, no. 6 (2010): 1889–912. http://dx.doi.org/10.5194/osd-7-1889-2010.

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Abstract. This study focuses on spatial patterns in linear trends of numerically reconstructed basic wave properties (average and extreme wave heights, wave period) in the Baltic Sea. Numerical simulations of wave conditions for 1970–2007, using the WAM wave model and adjusted geostrophic winds, revealed extensive spatial variations in long-term changes in both average and extreme wave heights in the Baltic Sea but almost no changes in the basinwide wave activity and wave periods. There has been a statistically significant decrease in the annual mean significant wave height by more than 10% be

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Herman, A., J. Jedrasik, and M. Kowalewski. "Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea." Ocean Science 7, no. 2 (2011): 257–76. http://dx.doi.org/10.5194/os-7-257-2011.

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Abstract. In this paper, a numerical dynamic-thermo-dynamic sea-ice model for the Baltic Sea is used to analyze the variability of ice conditions in three winter seasons. The modelling results are validated with station (water temperature) and satellite data (ice concentration) as well as by qualitative comparisons with the Swedish Meteorological and Hydrological Institute ice charts. Analysis of the results addresses two major questions. One concerns effects of meteorological forcing on the spatio-temporal distribution of ice concentration in the Baltic. Patterns of correlations between air t

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Herman, A., J. Jedrasik, and M. Kowalewski. "Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea." Ocean Science Discussions 8, no. 1 (2011): 113–57. http://dx.doi.org/10.5194/osd-8-113-2011.

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Abstract. In this paper, a numerical dynamic-thermodynamic sea-ice model for the Baltic Sea is used to analyze the variability of ice conditions in three winter seasons. The modelling results are validated with station (water temperature) and satellite data (ice concentration) as well as by qualitative comparisons with the Swedish Meteorological and Hydrological Institute ice charts. Analysis of the results addresses two major questions. One concerns effects of meteorological forcing on the spatio-temporal distribution of ice concentration in the Baltic. Patterns of correlations between air te

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20

Ikävalko, Johanna. "Further observations on flagellates within sea ice in northern Bothnian Bay, the Baltic Sea." Polar Biology 19, no. 5 (1998): 323–29. http://dx.doi.org/10.1007/s003000050253.

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Soomere, T., and A. Räämet. "Long-term spatial variations in the Baltic Sea wave fields." Ocean Science 7, no. 1 (2011): 141–50. http://dx.doi.org/10.5194/os-7-141-2011.

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Abstract. This study focuses on spatial patterns in linear trends of numerically reconstructed basic wave properties (average and extreme wave heights, wave periods) in the Baltic Sea under the assumption of no ice cover. Numerical simulations of wave conditions for 1970–2007, using the WAM wave model and adjusted geostrophic winds, revealed extensive spatial variations in long-term changes in both average and extreme wave heights in the Baltic Sea but almost no changes in the basinwide wave activity and wave periods. There has been a statistically significant decrease in the annual mean signi

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Kallio, Niko, Matti Sahla, and Risto Kalliola. "Itämeren aleneva suolapitoisuus muokkaa Suomen rannikon lajien levinneisyyttä." Terra 132, no. 4 (2020): 163–74. http://dx.doi.org/10.30677/terra.90638.

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The physical and chemical properties of water are vital for aquatic organisms. Should changes in these conditions occur, responses would follow both in the distributions of species and ecosystem functioning. Water salinity is particularly critical because it induces osmotic stress and requires specific physiological adaptations from the living organisms. Current climate change models suggest increasing precipitation in the Baltic Sea catchment area and decreasing seawater salinity along the Finnish seacoast. In order to envisage potential consequences of decreasing salinity in the coastal ecos

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Flinkman, Juha, Ilppo Vuorinen, and Eero Aro. "Planktivorous Baltic Herring (Clupea harengus) Prey Selectively on Reproducing Copepods and Cladocerans." Canadian Journal of Fisheries and Aquatic Sciences 49, no. 1 (1992): 73–77. http://dx.doi.org/10.1139/f92-008.

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Plankton and Baltic herring (Clupea harengus) were sampled simultaneously at nine sites in the northern Baltic Sea and Gulf of Bothnia. The stomachs from 45 herring and 54 plankton samples were analysed. The prey consisted mainly of adult mesozooplankters: copepods and cladocerans. Larger zooplankters (mysids and amphipods) were very rare in the stomachs as were the younger stages (copepodids) of copepods. The stomach contents of the fish changed from brackish water and neritic plankton species in the northern Baltic Proper to limnic species in the northern part of the Bothnian Sea. The divers

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Hietala, Riikka, Peter Lundberg, and Jenny A. U. Nilsson. "A note on the deep-water inflow to the Bothnian Sea." Journal of Marine Systems 68, no. 1-2 (2007): 255–64. http://dx.doi.org/10.1016/j.jmarsys.2006.12.004.

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Pekcan-Hekim, Zeynep, Anna Gårdmark, Agnes M. L. Karlson, Pirkko Kauppila, Mikaela Bergenius, and Lena Bergström. "The role of climate and fisheries on the temporal changes in the Bothnian Bay foodweb." ICES Journal of Marine Science 73, no. 7 (2016): 1739–49. http://dx.doi.org/10.1093/icesjms/fsw032.

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Abstract Climate change, eutrophication, and fishing are main pressures associated with changes in the abiotic and biotic environment in several sub-basins of the Baltic Sea. Identifying the nature of such changes is of relative importance for fisheries and environmental management. The Bothnian Bay is the northernmost sub-basin in the Baltic Sea and the responses of the foodweb to long-term changes in combined pressures have not been investigated. In this study, we explore long-term changes in the Bothnian Bay foodweb, represented by key species across all trophic levels over the past 34 year

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Olsson, Jens, Eglė Jakubavičiūtė, Olavi Kaljuste, et al. "The first large-scale assessment of three-spined stickleback (Gasterosteus aculeatus) biomass and spatial distribution in the Baltic Sea." ICES Journal of Marine Science 76, no. 6 (2019): 1653–65. http://dx.doi.org/10.1093/icesjms/fsz078.

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Abstract Declines in predatory fish in combination with the impact of climate change and eutrophication have caused planktivores, including three-spined stickleback (Gasterosteus aculeatus), to increase dramatically in parts of the Baltic Sea. Resulting impacts of stickleback on coastal and offshore foodwebs have been observed, highlighting the need for increased knowledge on its population characteristics. In this article, we quantify abundance, biomass, size structure, and spatial distribution of stickleback using data from the Swedish and Finnish parts of the Baltic International Acoustic S

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Clason, Caroline C., Sarah L. Greenwood, Nick Selmes, et al. "Controls on the early Holocene collapse of the Bothnian Sea Ice Stream." Journal of Geophysical Research: Earth Surface 121, no. 12 (2016): 2494–513. http://dx.doi.org/10.1002/2016jf004050.

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Müller-Haeckel, Agnes. "Shade-adapted Algae beneath Ice and Snow in the Northern Bothnian Sea." Internationale Revue der gesamten Hydrobiologie und Hydrographie 70, no. 3 (1985): 325–34. http://dx.doi.org/10.1002/iroh.19850700303.

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Leonardsson, Kjell. "Growth and reproduction of Mesidotea entomon (Isopoda) in the northern Bothnian Sea." Ecography 9, no. 3 (1986): 240–44. http://dx.doi.org/10.1111/j.1600-0587.1986.tb01214.x.

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Salminen, M., E. Erkamo, and J. Salmi. "Diet of post-smolt and one-sea-winter Atlantic salmon in the Bothnian Sea, Northern Baltic." Journal of Fish Biology 58, no. 1 (2001): 16–35. http://dx.doi.org/10.1111/j.1095-8649.2001.tb00496.x.

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Olofsson, Malin, Isabell Klawonn, and Bengt Karlson. "Nitrogen fixation estimates for the Baltic Sea indicate high rates for the previously overlooked Bothnian Sea." Ambio 50, no. 1 (2020): 203–14. http://dx.doi.org/10.1007/s13280-020-01331-x.

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AbstractDense blooms of diazotrophic filamentous cyanobacteria are formed every summer in the Baltic Sea. We estimated their contribution to nitrogen fixation by combining two decades of cyanobacterial biovolume monitoring data with recently measured genera-specific nitrogen fixation rates. In the Bothnian Sea, estimated nitrogen fixation rates were 80 kt N year−1, which has doubled during recent decades and now exceeds external loading from rivers and atmospheric deposition of 69 kt year−1. The estimated contribution to the Baltic Proper was 399 kt N year−1, which agrees well with previous es

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VALTONEN, E. T., K. PULKKINEN, R. POULIN, and M. JULKUNEN. "The structure of parasite component communities in brackish water fishes of the northeastern Baltic Sea." Parasitology 122, no. 4 (2001): 471–81. http://dx.doi.org/10.1017/s0031182001007491.

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We used nestedness analysis to seek non-random patterns in the structure of component communities of metazoan parasites collected from 31 sympatric fish species from the northeastern Bothnian Bay, the most oligohaline area of the Baltic Sea. Only 8 marine parasite species were found among the 63 species recorded, although some marine fish species reproduce in the bay and others occasionally visit the area. Marine parasite species can utilize both freshwater and marine fish species as intermediate or final hosts, and marine fish can harbour freshwater parasite species. This exchange of parasite

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Saikku, Reetta, Minna Alhosalo, Sari Repka, and Anne Erkkilä. "Reviewing the History of Natural Sciences Research on the Bothnian Sea, 1975–2008." AMBIO 39, no. 7 (2010): 524–27. http://dx.doi.org/10.1007/s13280-010-0056-x.

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Löptien, U., and L. Axell. "Ice and AIS: ship speed data and sea ice forecasts in the Baltic Sea." Cryosphere 8, no. 6 (2014): 2409–18. http://dx.doi.org/10.5194/tc-8-2409-2014.

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Abstract. The Baltic Sea is a seasonally ice-covered marginal sea located in a densely populated area in northern Europe. Severe sea ice conditions have the potential to hinder the intense ship traffic considerably. Thus, sea ice fore- and nowcasts are regularly provided by the national weather services. Typically, the forecast comprises several ice properties that are distributed as prognostic variables, but their actual usefulness is difficult to measure, and the ship captains must determine their relative importance and relevance for optimal ship speed and safety ad hoc. The present study p

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Löptien, U., and L. Axell. "Ice and AIS: ship speed data and sea ice forecasts in the Baltic Sea." Cryosphere Discussions 8, no. 4 (2014): 3811–28. http://dx.doi.org/10.5194/tcd-8-3811-2014.

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Abstract. The Baltic Sea is a seasonally ice covered marginal sea located in a densely populated area in northern Europe. Severe sea ice conditions have the potential to hinder the intense ship traffic considerably. Thus, sea ice fore- and nowcasts are regularly provided by the national weather services. Typically, several ice properties are allocated, but their actual usefulness is difficult to measure and the ship captains must determine their relative importance and relevance for optimal ship speed and safety ad hoc. The present study provides a more objective approach by comparing the ship

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Pöykiö, R., H. Nurmesniemi, V. A. Kivilinna, and T. Kuokkanen. "Long-term changes in the effluent loads from pulp and paper mills, the introduction of BAT technology, and their effects on extractable organic halogens concentrations in sediment in part of the Bothnian Bay." Water Science and Technology 62, no. 6 (2010): 1288–95. http://dx.doi.org/10.2166/wst.2010.421.

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The Bothnian Bay at Kemi, which is the northernmost basin of the Gulf of Bothnia in the Baltic Sea, is affected by effluents from point sources such as pulp and paper mills and municipal sewage plant. During the period 1988–2008, the accumulated values of effluent volume, BOD7, CODCr, Tot-P, Tot-N, TSS and AOX from these point sources fell considerably as follows: 1) effluent volume by 24%, BOD7 by 92%, CODCr by 74%, Tot-P by 79%, Tot-N by 38%, TSS by 76% and AOX by 93%. The decrease in the effluent loadings is due to the introduction of Best Available Techniques (BAT) for the production proce

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Granskog, Mats A., Jari Uusikivi, Alberto Blanco Sequeiros, and Eloni Sonninen. "Relation of ice growth rate to salt segregation during freezing of low-salinity sea water (Bothnian Bay, Baltic Sea)." Annals of Glaciology 44 (2006): 134–38. http://dx.doi.org/10.3189/172756406781811259.

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AbstractSalt segregation and isotopic fractionation during sea-ice formation can be parameterized as a function of the ice growth rate. We performed a study to investigate if the salt segregation models derived for saline sea-ice studies are pertinent during the growth of Baltic Sea ice in brackish water. We used a time series of ice-salinity profiles and modeled growth rates to examine the relationship between effective salt segregation and growth rate. The results show that models derived for saline sea water are not directly applicable for use in the brackish waters of the Baltic Sea. We de

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Keinänen, Marja, Annika Uddström, Jaakko Mikkonen, et al. "The thiamine deficiency syndrome M74, a reproductive disorder of Atlantic salmon (Salmo salar) feeding in the Baltic Sea, is related to the fat and thiamine content of prey fish." ICES Journal of Marine Science 69, no. 4 (2012): 516–28. http://dx.doi.org/10.1093/icesjms/fss041.

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Abstract Keinänen, M., Uddström, A., Mikkonen, J., Casini, M., Pönni, J., Myllylä, T., Aro, E., and Vuorinen, P. J. 2012. The thiamine deficiency syndrome M74, a reproductive disorder of Atlantic salmon (Salmo salar) feeding in the Baltic Sea, is related to the fat and thiamine content of prey fish. – ICES Journal of Marine Science, 69: 516–528. This study clarifies how the diet of Baltic salmon leads to thiamine deficiency in eggs, and consequently to M74 mortality of yolk-sac fry. The main prey species, sprat (Sprattus sprattus) and herring (Clupea harengus membras), and their biomass in the

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Valtonen, E. Tellervo, Hans-Peter Fagerholm, and Eero Helle. "Contracaecum osculatum (Nematoda: Anisakidae) in fish and seals in Bothnian Bay (northeastern Baltic Sea)." International Journal for Parasitology 18, no. 3 (1988): 365–70. http://dx.doi.org/10.1016/0020-7519(88)90146-4.

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Dijkstra, Nikki, Nadine B. Quintana Krupinski, Masako Yamane, et al. "Holocene Refreshening and Reoxygenation of a Bothnian Sea Estuary Led to Enhanced Phosphorus Burial." Estuaries and Coasts 41, no. 1 (2017): 139–57. http://dx.doi.org/10.1007/s12237-017-0262-x.

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Busse, Svenja, and Pauli Snoeijs. "Gradient responses of diatom communities in the Bothnian Sea (northern Baltic Sea), with emphasis on responses to water movement." Phycologia 42, no. 5 (2003): 451–64. http://dx.doi.org/10.2216/i0031-8884-42-5-451.1.

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Brinza, Loredana, Charlotta A. Nygård, Matthew J. Dring, Maria Gavrilescu, and Liane G. Benning. "Cadmium tolerance and adsorption by the marine brown alga Fucus vesiculosus from the Irish Sea and the Bothnian Sea." Bioresource Technology 100, no. 5 (2009): 1727–33. http://dx.doi.org/10.1016/j.biortech.2008.09.041.

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Torniainen, Jyrki, Pekka J. Vuorinen, Roger I. Jones, et al. "Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales." ICES Journal of Marine Science 71, no. 2 (2013): 336–44. http://dx.doi.org/10.1093/icesjms/fst153.

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Abstract Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connectivity refers to the extent to which individuals of a migratory population behave in unison, and has significant consequences for the ecology, evolution and conservation of migratory animals. We made a retrospective assessment of the migratory connectivity of River Simojoki and River Kymijoki popula

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Håkanson, L., P. Jonsson, B. Jonsson, and K. Martinsen. "Distribution of Chlorinated Organic Substances from Pulp Mills." Water Science and Technology 20, no. 2 (1988): 25–36. http://dx.doi.org/10.2166/wst.1988.0043.

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This is a report from a project sponsored by the National Swedish Environmental Protection Board, “Environment/Cellulose”, which focuses on the chemical character, distribution pattern and potential ecological hazards of chlorinated organic substances from pulp mills. This paper deals primarily with the spread of EOCl in the sediments of the Bothnian Sea and the northern part of the Baltic. Results:–there exists a clear linkage between the spread and the concentration of EOC1 in surficial sediments and the bottom dynamic conditions, such that high contents (highest 903 µg/g ds) generally appea

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Åberg, F., and F. E. Wickman. "Variations of 87Sr/86Sr in Water from Streams Discharging into the Bothnian Bay, Baltic Sea." Hydrology Research 18, no. 1 (1987): 33–42. http://dx.doi.org/10.2166/nh.1987.0003.

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The 87Sr/86Sr ratio in 53 water samples were analysed, 26 from streams in Sweden, 22 from streams in Finland and 5 from the Bothnian Bay itself. The brackish seawater of the bay had the isotope ratio 0.7095, while the stream-water samples varied from 0.7177 to 0.7366. The weighted average isotope ratio with respect to discharges was 0.7313, this high ratio reflecting the dominance of granitic Proterozoic rocks in the region. For streams with an average discharge between 1-40 m3/s the isotope ratio was within the interval 0.718-0.736, while those with discharges &gt;150 m3/s defined an inte

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Eriksson, Britas Klemens, Gustav Johansson, and Pauli Snoeijs. "Long-term changes in the sublittoral zonation of brown algae in the southern Bothnian Sea." European Journal of Phycology 33, no. 3 (1998): 241–49. http://dx.doi.org/10.1080/09670269810001736743.

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Rasigraf, Olivia, Julia Schmitt, Mike S. M. Jetten, and Claudia Lüke. "Metagenomic potential for and diversity of N-cycle driving microorganisms in the Bothnian Sea sediment." MicrobiologyOpen 6, no. 4 (2017): e00475. http://dx.doi.org/10.1002/mbo3.475.

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Ahlgren, Joakim, Anders Grimvall, Anders Omstedt, Carl Rolff, and Johan Wikner. "Temperature, DOC level and basin interactions explain the declining oxygen concentrations in the Bothnian Sea." Journal of Marine Systems 170 (June 2017): 22–30. http://dx.doi.org/10.1016/j.jmarsys.2016.12.010.

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Piiparinen, Jonna, Harri Kuosa, and Janne-Markus Rintala. "Winter-time ecology in the Bothnian Bay, Baltic Sea: nutrients and algae in fast ice." Polar Biology 33, no. 11 (2010): 1445–61. http://dx.doi.org/10.1007/s00300-010-0771-6.

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Vahteri, Petri, Kevin O'Brien, and Ilppo Vuorinen. "Zonation and spatial distribution of littoral fish communities from the southwestern Finnish coast (Archipelago and Bothnian Sea, Northern Baltic Sea)." Estuarine, Coastal and Shelf Science 82, no. 1 (2009): 35–40. http://dx.doi.org/10.1016/j.ecss.2008.11.016.

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