Bacterial benthic community composition in the Baltic Sea in selected chemical and conventional weapons dump sites affected by munition corrosion.

摘要: Abstract Microflora of marine waters and sediments play a significant role not only in the course natural changes circulation elements this environment, but can also be decisive factor during erosion processes various submerged objects or structures such as wrecks, sunken objects, pipelines, etc. The bacteria which have influence on corrosion include aerobic anaerobic sulfur well iron bacteria. Particular importance is attributed to sulfide reducing (SRB) occur waters, bottom sediments, creating biofilms metal surface, may start process known microbial induced (MIC). occurrence these their populations indicates potential intensification processes. aim study was determine number microorganisms from groups Baltic Sea especially those that are active biological This data used for comprehensive corrosive result, carry out real assessment risks arising release toxic substances into environment conventional chemical weapons lying caused by progressing processes, including corrosion. article presents results research presence accounts sediment samples taken dump sites ammunition Sea. attention paid halophilic halotolerant due contribution both decomposition CWA explosives, particularly saltwater environment. There were high quite similar numbers mesophilic, psychrophilic studied samples, while significantly smaller amount mesophilic ranges 6.42*103 2.85*107, average 4.5*106 1 g DM, 5.73*103 in1g DM 4.11*107 6.44*106 whereas halophylic 4.09*102 5.60*107, 5.83*106 DM. fungi at much lower level ranged 4.65*101 8.08*102, 2.63*102 0 1.60*103, 3.58*102 fungi. detected large populations, when they isolated means medium prepared with seawater (from 9.72 5.36*102, 2.52*102 DM), adaptation saline promotes No amounts found, probably small oxygen sampling area. primarily major part phenomena.