91 research outputs found
Effect of climate change on the thermal stratification of the baltic sea: a sensitivity experiment
Relationships between colored dissolved organic matter and dissolved organic carbon in different coastal gradients of the Baltic Sea
Impacts of changing climate on the non-indigenous invertebrates in the northern Baltic Sea by end of the twenty-first century
Linking Climate Trends to Population Dynamics in the Baltic Ringed Seal: Impacts of Historical and Future Winter Temperatures
Environmental cues and constraints affecting the seasonality of dominant calanoid copepods in brackish, coastal waters: a case study of Acartia, Temora and Eurytemora species in the south-west Baltic
Information on physiological rates and tolerances helps one gain a cause-and-effect understanding of the role that some environmental (bottomâup) factors play in regulating the seasonality and productivity of key species. We combined the results of laboratory experiments on reproductive success and field time series data on adult abundance to explore factors controlling the seasonality of Acartia spp., Eurytemora affinis and Temora longicornis, key copepods of brackish, coastal and temperate environments. Patterns in laboratory and field data were discussed using a metabolic framework that included the effects of âcontrollingâ, âmaskingâ and âdirectiveâ environmental factors. Over a 5-year period, changes in adult abundance within two south-west Baltic field sites (Kiel Fjord Pier, 54°19âČ89N, 10°09âČ06E, 12â21 psu, and North/Baltic Sea Canal NOK, 54°20âČ45N, 9°57âČ02E, 4â10 psu) were evaluated with respect to changes in temperature, salinity, day length and chlorophyll a concentration. Acartia spp. dominated the copepod assemblage at both sites (up to 16,764 and 21,771 females mâ3 at NOK and Pier) and was 4 to 10 times more abundant than E. affinis (to 2,939 mâ3 at NOK) and T. longicornis (to 1,959 mâ3 at Pier), respectively. Species-specific salinity tolerance explains differences in adult abundance between sampling sites whereas phenological differences among species are best explained by the influence of species-specific thermal windows and prey requirements supporting survival and egg production. Multiple intrinsic and extrinsic (environmental) factors influence the production of different egg types (normal and resting), regulate life-history strategies and influence matchâmismatch dynamics
Atmospheric pathways of chlorinated pesticides and natural bromoanisoles in the northern Baltic Sea and its catchment
Methylation index as means of quantification of the compliance of sedimentary mercury to be methylated
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