Best Practices in Monitoring

Bełdowski, Jacek; Jakacki, Jaromir; Grabowski, Miłosz; Lang, Thomas; Weber, Kela P.; Kotwicki, Lech; Пака, В. Т.; Rak, Daniel; Golenko, Maria; Czub, Michał; Söderström, Martin

doi:10.1007/978-94-024-1153-9_9

Cited by 8 publications

(3 citation statements)

References 11 publications

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“…Because of the ship's stops every 2 miles, the mean speed of passage of the transect decreased twice relative to the towing speed with scanning. The modified measurement technique that we used in 2016 and 2017 was presented previously (Bełdowski et al, 2018a).…”

Section: Measurements On Extended Transectsmentioning

confidence: 99%

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Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer

et al. 2019

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A solution to the problem of determination of spatial variability of oceanographic fields, which contained a fine structure resolution higher than what was possible previously using towed scanning probes, was presented for the Baltic Sea. Another concurrently solved problem consisted in obtaining data on the structure of waters in the bottom layer, which was difficult to implement by way of application of previous methods. Instead of scanning along inclined paths, a new measurement technique allows for a quasi-free probe drop with a constant sink rate and which reaches the bottom at each dive cycle along the route of the ship, independent of the pitch of the ship and optimal for the applied probe. The new measurement technique is simpler and more efficient than the previous one. In addition, the problem of measuring the velocity of both very weak and strong currents in a thin bottom layer, including stagnant zones, slopes, sills, and underwater channels, was suggested to be solved using clusters consisting of a sufficiently large number of autonomous Tilt Current Meters (TCM) of original design. The innovation benefits are illustrated by the results of a monitoring campaign that was carried out in the southern Baltic Sea in 2016-2018. Among the new findings is the highest ever recorded temperature, 14.3 • C, in the halocline of the Bornholm Basin, measured after a baroclinic inflow event in early Autumn 2018, and an extraordinarily large current velocity of saltwater flow of more than 0.5 m/s, recorded by a TCM within a 1 m thick bottom layer at the eastern slope of the Hoburg Channel during a period when the northwesterly wind had intensified to a severe gale.

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Section: Measurements On Extended Transectsmentioning

confidence: 99%

“…Methods of special monitoring of physical processes in the Baltic Sea are developed and successfully used in field studies (Bełdowski et al, 2018a). The main attention is paid to obtaining data on the mesoscale structure of waters on transects, located along the route of inflow currents and in the bottom currents.…”

Section: Introductionmentioning

confidence: 99%

Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer

et al. 2019

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“…As a demersal species, G. morhua callarias is especially prone to CWAs exposure: individuals of this species live in the vicinity of submerged military objects [ 8 , 34 ]. For this reason, cod from the Bornholm Deep have long been monitored and studied for biomarkers of CWAs exposure [ 35 , 36 ]. A recent study documented biotransformation and bioaccumulation of the oxidation products of several CWAs by individuals of this species [ 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

Metagenomic Analysis of the Gastrointestinal Microbiota of Gadus morhua callarias L. Originating from a Chemical Munition Dump Site

Wilczynski

Radlińska

Wysujack³

et al. 2022

Toxics

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Several hundred thousand tonnes of munitions containing chemical warfare agents (CWAs) are lying on the seafloor worldwide. CWAs have started leaking from corroded munitions, and their presence in the environment and in organisms inhabiting dump sites has been detected. The presence of CWAs in the water negatively affects fish, macrobenthos and free-living bacteria. It can be expected that the presence of CWAs would also affect the gut-associated bacteria in fish, which are vital for their condition. The main aim of this study was to test if the microbiota of cod collected in the Baltic Bornholm Deep (highly polluted with CWAs) is dysregulated. To investigate this, we conducted metagenomic studies based on 16S rRNA gene sequencing. We found that the microbiota of cod inhabiting the dump site were significantly less taxonomically diverse compared to those from a non-polluted reference site. Moreover, taxa associated with fish diseases (e.g., Vibrionaceae, Aeromonadaceae) were more prevalent, and probiotic taxa (e.g., Actinobacteriota, Rhodobacteraceae) were less frequent in the guts of individuals from the dump site, than those from the reference site. The differences in vulnerability of various bacterial taxa inhabiting cod gastrointestinal tracts to CWAs were hypothesised to be responsible for the observed microbiota dysregulation.

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Bioindicators in Recreational Planning and Development: Balancing Nature and Human Activities

Jacob,

Nеlson,

Izah

et al. 2024

Biomonitoring of Pollutants in the Global South

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Best Practices in Monitoring

Cited by 8 publications

References 11 publications

Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer

Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer

Metagenomic Analysis of the Gastrointestinal Microbiota of Gadus morhua callarias L. Originating from a Chemical Munition Dump Site

Bioindicators in Recreational Planning and Development: Balancing Nature and Human Activities

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