Balamuthia spinosa n. sp. (Amoebozoa, Discosea) from the brackish-water sediments of Nivå Bay (Baltic Sea, The Sound) — a novel potential vector of Legionella pneumophila in the environment

2022 ◽  
Author(s):  
K. Lotonin ◽  
N. Bondarenko ◽  
E. Nassonova ◽  
M. Rayko ◽  
A. Smirnov
Keyword(s):  
Baltic Sea ◽  
Legionella Pneumophila ◽  
Brackish Water ◽  
Potential Vector

scholarly journals Insight into the genome and brackish water adaptation strategies of toxic and bloom-forming Baltic Sea Dolichospermum sp. UHCC 0315

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jonna E. Teikari ◽  
Rafael V. Popin ◽  
Shengwei Hou ◽  
Matti Wahlsten ◽  
Wolfgang R. Hess ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Brackish Water ◽  
Adaptation Strategies ◽  
Insight Into

Do ostracod associations reflect macrophyte communities? A case study from the brackish water of the southern Baltic Sea coast

2005 ◽  
Vol 67 (2) ◽  
pp. 142-155 ◽  
Author(s):  
Peter Frenzel ◽  
Daniela Henkel ◽  
Michael Siccha ◽  
Lina Tschendel
Keyword(s):  
Baltic Sea ◽  
Brackish Water ◽  
Southern Baltic Sea ◽  
Macrophyte Communities ◽  
Southern Baltic ◽  
Sea Coast

scholarly journals Cyanobacterial Akinete Distribution, Viability, and Cyanotoxin Records in Sediment Archives From the Northern Baltic Sea

2021 ◽  
Vol 12 ◽  
Author(s):  
Steffaney M. Wood ◽  
Anke Kremp ◽  
Henna Savela ◽  
Sultana Akter ◽  
Vesa-Pekka Vartti ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Sediment Core ◽  
Brackish Water ◽  
Life Cycles ◽  
Near Surface ◽  
Bloom Formation ◽  
The Baltic ◽  
Species Specific ◽  
Germination Experiments ◽  
Sediment Layers

Cyanobacteria of the order Nostocales, including Baltic Sea bloom-forming taxa Nodularia spumigena, Aphanizomenon flosaquae, and Dolichospermum spp., produce resting stages, known as akinetes, under unfavorable conditions. These akinetes can persist in the sediment and germinate if favorable conditions return, simultaneously representing past blooms and possibly contributing to future bloom formation. The present study characterized cyanobacterial akinete survival, germination, and potential cyanotoxin production in brackish water sediment archives from coastal and open Gulf of Finland in order to understand recent bloom expansion, akinete persistence, and cyanobacteria life cycles in the northern Baltic Sea. Results showed that cyanobacterial akinetes can persist in and germinate from Northern Baltic Sea sediment up to >40 and >400 years old, at coastal and open-sea locations, respectively. Akinete abundance and viability decreased with age and depth of vertical sediment layers. The detection of potential microcystin and nodularin production from akinetes was minimal and restricted to the surface sediment layers. Phylogenetic analysis of culturable cyanobacteria from the coastal sediment core indicated that most strains likely belonged to the benthic genus Anabaena. Potentially planktonic species of Dolichospermum could only be revived from the near-surface layers of the sediment, corresponding to an estimated age of 1–3 years. Results of germination experiments supported the notion that akinetes do not play an equally significant role in the life cycles of all bloom-forming cyanobacteria in the Baltic Sea. Overall, there was minimal congruence between akinete abundance, cyanotoxin concentration, and the presence of cyanotoxin biosynthetic genes in either sediment core. Further research is recommended to accurately detect and quantify akinetes and cyanotoxin genes from brackish water sediment samples in order to further describe species-specific benthic archives of cyanobacteria.

scholarly journals Bacteria in sea ice and underlying brackish water at 54°26'5"N (Baltic Sea, Kiel Bight)

1997 ◽  
Vol 158 ◽  
pp. 23-40 ◽  
Author(s):  
T Mock ◽  
KM Meiners ◽  
HC Giesenhagen
Keyword(s):  
Sea Ice ◽  
Baltic Sea ◽  
Brackish Water ◽  
Kiel Bight

scholarly journals Major differences in dissolved organic matter characteristics and bacterial processing over an extensive brackish water gradient, the Baltic Sea

2018 ◽  
Vol 202 ◽  
pp. 27-36 ◽  
Author(s):  
Owen F. Rowe ◽  
Julie Dinasquet ◽  
Joanna Paczkowska ◽  
Daniela Figueroa ◽  
Lasse Riemann ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Baltic Sea ◽  
Brackish Water ◽  
The Baltic Sea ◽  
Water Gradient ◽  
The Baltic

scholarly journals Temporally stable, weak genetic structuring in brackish water northern pike (Esox lucius) in the Baltic Sea indicates a contrasting divergence pattern relative to freshwater populations

2017 ◽  
Vol 74 (4) ◽  
pp. 562-571 ◽  
Author(s):  
Lovisa Wennerström ◽  
Jens Olsson ◽  
Nils Ryman ◽  
Linda Laikre
Keyword(s):  
Genetic Structure ◽  
Baltic Sea ◽  
Brackish Water ◽  
Northern Pike ◽  
Esox Lucius ◽  
The Baltic Sea ◽  
Genetic Structuring ◽  
Important Species ◽  
Pike Esox Lucius ◽  
The Baltic

Understanding spatiotemporal population genetic patterns is important for conservation management of ecologically and socioeconomically important species. This is particularly so in species-poor environments such as the brackish Baltic Sea. We examined over 600 northern pike (Esox lucius), a coastal predator and treasured sport fish, collected over major parts of the Baltic Sea coastline. We found low genetic divergence among populations, indicating a contrasting genetic structure of brackish water coastal spawners compared with previous reports on anadromous Baltic pike migrating up freshwater streams for spawning. A pattern of genetic isolation by distance either over shortest waterway or primarily along the mainland coast with islands as stepping stones suggested that gene flow is primarily taking place among neighboring populations, possibly with some migration over open water. Temporal data showed a stable genetic structure over a decade. Within a single sampling year, however, spatial divergence was larger during spawning than feeding season, indicating increased mixing of populations during the feeding season. Management should assure connectivity among brackish spawning grounds and large population sizes at identified core areas.

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