Research paperPhotobleaching of fluorescence and the organic carbon concentration in a coastal environment
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Cited by (65)
Seasonal variations in dissolved organic matter composition using absorbance and fluorescence spectroscopy in the Dardanelles Straits – North Aegean Sea mixing zone
2017, Continental Shelf ResearchCitation Excerpt :As LW waters travel northward, they are subducted under the pycnocline during these months and are forced to pass through a shallow ~40 m water layer over the Limnos plateau, so that their velocity is expected to increase resulting in sediment resuspension events. Moreover, the generation and release of visible fluorescent FDOM from sediments has been reported by Skoog et al. (1996) and provides strong evidence that the site specific increases observed in the visible fluorescent FDOM are linked to sedimentary organic material. We therefore suggest that the modulation of CDOM-FDOM characteristics in the subsurface layer is related to changes in the particle regime under stratified conditions.
Mixing and photoreactivity of dissolved organic matter in the Nelson/Hayes estuarine system (Hudson Bay, Canada)
2016, Journal of Marine SystemsCitation Excerpt :Assuming that 2 days in the Suntest solar simulator was equivalent to 6.9 days during Arctic summer solstice, the estimated half-lives ranged from 4.9 to 9.9 days (average 5.4 days) at S1–S6. The Nelson/Hayes DOM half-lives were nearly equivalent to those found in the Mackenzie River (3.7–4.8 days for a330; Osburn et al., 2009) and in the Baltic Sea (0.5–3.0d for humic-like DOM; Skoog et al., 1996). These half-life values are likely underestimated as high turbidity in coastal Hudson Bay (Granskog, 2012) may limit light penetration and thus slow down photobleaching of DOM.
Positive trends between salinity and chromophoric and fluorescent dissolved organic matter in a seasonally inverse estuary
2013, Estuarine, Coastal and Shelf SciencePhotochemical bleaching of oceanic dissolved organic matter and its effect on absorption spectral slope and fluorescence
2013, Marine ChemistryCitation Excerpt :Further, the products of photochemical degradation of CDOM represent a source of nutrients for phytoplankton (Tarr et al., 2001; Stedmon et al., 2007; Vähätalo and Järvinen, 2007), metabolic substrates for heterotrophs (Kieber et al., 1989; Miller et al., 2002), and climatologically relevant gasses (Johannessen and Miller, 2001; Cutter et al., 2004; Stubbins et al., 2006; Toole et al., 2006). The loss of UV and visible light absorption and fluorescence that occurs during photochemical degradation of CDOM is referred to as photobleaching (Zika, 1980; Kieber et al., 1990Chen and Bada, 1992; Skoog et al., 1996). The basin-scale impact of CDOM photobleaching in surface waters of the remote Pacific Ocean has recently been highlighted by large-scale surveys (Swan et al., 2009; Yamashita and Tanoue, 2009), which show that CDOM absorbance and fluorescence are strongly depleted in the surface mixed layer.
Identifying fluorescent pulp mill effluent in the Gulf of Maine and its watershed
2012, Marine Pollution BulletinInfluence of salinity and organic matter on the toxicity of Cu to a brackish water and marine clone of the red macroalga Ceramium tenuicorne
2011, Ecotoxicology and Environmental SafetyCitation Excerpt :For example, >99% of the dissolved fraction of Cu has shown to be complexed with organic ligands in the Narragansett Bay, Rhode Island (Kozelka and Bruland, 1998). The dissolved organic fraction of TOC, i.e. dissolved organic carbon (DOC), is typically 0.5–1 mg/L in the oceans (Opsahl and Benner, 1997), whereas in the Baltic Sea the DOC content is about 3–4 times higher (Skoog et al., 1996; Alling et al., 2008). The difference between TOC and DOC has by Alling et al. (2008) been found to be negligible in the Baltic Sea, with exception during algal blooms.
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Present address: University of Texas Marine Science Institute, P.O. Box 1267, Port Aransas, TX 78373, USA.