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Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram of seawater has approximately 35 grams (1.2 oz) of dissolved salts. Average density at the surface is 1.025 kg/l. Seawater is denser than both fresh water and pure water because the dissolved salts increase the mass by a larger proportion than the volume. In comparison, most human physiological saline levels are approximately one quarter of this, for example blood is 9g/l. The freezing point of seawater decreases as salt concentration increases. At typical salinity, it freezes at about −2 °C (28 °F). The coldest seawater still in the liquid state ever recorded was found in 2010, in a stream under an Antarctic glacier: the measured temperature was −2.6 °C (27.3 °F). Seawater pH is typically limited to a range between 7.5 and 8.4. However, there is no universally accepted reference pH-scale for seawater and the difference between measurements based on different reference scales may be up to 0.14 units.
Hydrogenophaga atypica is a Gram-negative, oxidase-positive, rod-shaped, motile bacterium from the Comamonadaceae family, which was isolated from wastewater from an activated sludge. Colonies of H. atypica are pale yellow.
Thalassotalea is an aerobic and chemo-organo-heterotrophic genus of bacteria from the family Colwelliaceae which occur in the ocean and in sea ice.
Thalassotalea agariperforans is a Gram-negative, agarolytic and motile bacterium from the genus of Thalassotalea which has been isolated from the South Sea near the Geoje Island in Korea.
Thalassotalea agarivorans is an agarolytic bacterium from the genus of Thalassotalea which has been isolated from coastel water from An-Ping Harbour on Taiwan.
Thalassotalea crassostreae is a Gram-negative, aerobic and rod-shaped bacterium from the genus of Thalassotalea which has been isolated from the oyster Crassostrea gigas from the Yeongheung Island in South Korea.
Thalassotalea euphylliae is a Gram-negative, aerobic, rod-shaped and motile bacterium from the genus of Thalassotalea with a single polar flagellum which has been isolated from the coral Euphyllia glabrescens.
Thalassotalea eurytherma is a Gram-negative, aerobic and rod-shaped bacterium from the genus of Thalassotalea which has been isolated from seawater from the East China Sea.
Thalassotalea ganghwensis is a Gram-negative, aerobic and halophilic bacterium from the genus of Thalassotalea which has been isolated from tidal flat sediments in Korea.
Thalassotalea litorea is a bacterium from the genus of Thalassotalea which has been isolated from seashore sand from the South Sea in Korea.
Thalassotalea loyana is a bacterium from the genus of Thalassotalea. Thalassomonas loyana can cause white plague disease in the coral Favia favus.
Thalassotalea marina is a Gram-negative and facultatively anaerobic bacterium from the genus of Thalassotalea which has been isolated from a recirculating aquaculture system in Tianjin in China.
Thalassotalea montiporae is a Gram-negative, rod-shaped, aerobic and motile bacterium from the genus of Thalassotalea with a single polar flagellum which has been isolated from the coral Montipora aequituberculata from the coast of Taiwan.
Thalassotalea piscium is a Gram-negative, rod-shaped and aerobic bacterium from the genus of Thalassotalea which has been isolated from a cultivated flounder.
Thalassotalea ponticola is a Gram-negative and aerobic bacterium from the genus of Thalassotalea which has been isolated from seawater from the Geoje Island in Korea.
Thalassotalea coralli is a Gram-negative, aerobic, rod-shaped and motile bacterium from the genus of Thalassotalea which has been isolated from the coral Euphyllia glabrescens.
Thalassotalea insulae is a Gram-negative, aerobic, rod-shaped and motile bacterium from the genus of Thalassotalea which has been isolated from tidal flat sediments from Jindo in Korea.
Thalassotalea profundi is a Gram-negative, rod-shaped and motile bacterium from the genus of Thalassotalea which has been isolated from a scleractinian coral from the Yap seamounts from the Pacific Ocean.
Thalassotalea sediminis is a Gram-negative, rod-shaped and facultatively anaerobic bacterium from the genus of Thalassotalea which has been isolated from sediments from the coast of Weihai in China.
Roseivirga pacifica is a Gram-negative, aerobic and moderately halophilic bacterium from the genus of Roseivirga which has been isolated from seawater from a depth of 2672 m from the Pacific Ocean.
References
- 1 2 "Thalassotalea". LPSN .
- 1 2 "Thalassotalea atypica". www.uniprot.org.
- ↑ Wang, Y; Liu, T; Ming, H; Sun, P; Cao, C; Guo, M; Du, J; Zhou, C; Zhu, W (January 2018). "Thalassotalea atypica sp. nov., isolated from seawater, and emended description of Thalassotalea eurytherma". International Journal of Systematic and Evolutionary Microbiology. 68 (1): 271–276. doi: 10.1099/ijsem.0.002495 . PMID 29143725.