[European Union] During the summer months, large algal blooms occur frequently in the Baltic Sea. Often driven by warmer temperatures, abundant sunlight, and nutrient-rich waters, these blooms can reduce water […]
Baltic Sea
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
Orbital Biosignature Survey: Brilliant Phytoplankton Bloom In The Baltic Sea
Editor’s note: with the future advent of powerful telescopes that may be able to resolve habitable worlds in images composed of a few pixels, large biological phenomena such as algal […]
![Location of sediment sampling and pictures of resurrected species S. marinoi. (A) Map of the Baltic Sea (northern Europe) with the location of sediment core sampling (EMB262/6; 240 m water depth) in the eastern Gotland Basin (triangle). Additional sampling points of stratigraphy reference cores (points): M86-1a/36 [35], MSM62–60 [36], and P435-2-1 [34]. (B) Pictures of different Lugol-stained strains of S. marinoi. Strain SM_EGB_382_11 from 6871 ± 140 years of dormancy, SM_EGB_1_5 from 3 ± 2 years of dormancy, SM_EGB_107_1 from 1131 ± 110 years of dormancy, SM_EGB_20_4 from 58 ± 5 years of dormancy, and SM_EGB_232_2 from 3411 ± 120 years of dormancy. Scale bars = 20 μm. -- The ISME Journal](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/04/Resurrection-Of-A-Diatom-After.png?resize=1200%2C717&ssl=1)
Posted inBiophysics, Biosignatures & Paleobiology, Habitable Zones, Microbiology & Virology, Sample Return, Status Report, Water/Hycean Worlds & Oceanography
Resurrection Of A Diatom After 7,000 Years From Anoxic Baltic Sea Sediment
Dormancy is a widespread key life history trait observed across the tree of life. Many plankton species form dormant cell stages that accumulate in aquatic sediments and, under anoxic conditions, […]