Iodine speciation in the water column of the Rogoznica Lake (Eastern Adriatic Coast)

Stipaničev, Vesna; Branica, Marko

doi:10.1016/0048-9697(95)05029-9

Cited by 33 publications

(18 citation statements)

References 15 publications

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“…Also, the complexity of the analysis of foams (or micro-layer) for org-I, especially at low concentrations, might well have dissuaded many from further study. This would agree with the fact that it has generally only been applied to the water column of near-shore environments where concentrations are relatively high Stipani cev and Branica, 1996;Cheng, 1998, 2001). Even so, over the last decade more sophisticated analytical methods based upon IC-ICP-MS (Gilfedder et al, 2007), HPLC (Schwehr and Santschi, 2003) and Neutron Activation (Hou et al, 1999) have been introduced.…”

Section: The Novelty and Significance Of The Results Overallsupporting

confidence: 62%

“…Total iodine (TI) was determined indirectly, as iodate, after oxidation of reduced iodine species by UV-irradiation (24 h, 150-W mercury lamp; Hanau, Germany) in the presence of hydrogen peroxide. This was followed by treatment with hypochlorite to destroy any trace of peroxide as well as to reoxidise iodine species of lower oxidation state than iodate that might have formed during irradiation (Truesdale, 1975;Butler and Smith, 1980;Stipani cev and Branica, 1996;Wong and Cheng, 1998). To facilitate the removal of dissolved oxygen, as well as to destroy the excess of hypochlorite, sodium sulfite was also added to the samples (Wong and Zhang, 1992).…”

Section: Iodine Analysismentioning

confidence: 99%

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Circumstantial evidence in support of org-I as a component of the marine aerosol arising from a study of marine foams

Truesdale

Žic

Garnier

et al. 2012

Estuarine, Coastal and Shelf Science

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. a b s t r a c tA study of foams formed on the marine Lake Mir, Croatia, and elsewhere on the same coast demonstrates, for the first time, that they are fractionated (enrichened) in org-I by up to 630 times relative to the water from which they form. The results are consistent with an I/C mole ratio for in-situ organic matter. Foams created artificially in the laboratory from natural samples of water from Lake Mir were similarly fractionated, although to a lesser degree. These differences were effectively removed when enrichments were expressed as molar ratios, e.g., P tot /I tot , rather than straightforward concentrations. This similarity in the behaviour to enrichment for organic forms of I, N and P suggests that the time over which foams age is a major determinant of the enrichment they display. It is argued that this period allows time for the seawater occluded in the interstitial spaces between bubbles, to drain away. Since foam production is ubiquitous over the oceans it seems likely that this process local to coastal environments is much more common than at first might appear to be the case. The paper explains how this work provides circumstantial evidence that the bubble-bursting mechanism current since the 1960s may well provide the iodine which appears to be missing in many modelling calculations based upon an atmospheric system dependant upon sorption of the species IO upon the marine aerosol.

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Section: The Novelty and Significance Of The Results Overallsupporting

confidence: 62%

Section: Iodine Analysismentioning

confidence: 99%

Circumstantial evidence in support of org-I as a component of the marine aerosol arising from a study of marine foams

Truesdale

Žic

Garnier

et al. 2012

Estuarine, Coastal and Shelf Science

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“…A similar occurrence of sulphide and high concentrations of nutrients were for the first time recorded from the bottom layer of a salt lake (Lake Rogoznica) on the eastern Adriatic coast by Buljan (1956). All the other investigations of biological and chemical characteristics of the lake showed permanent stratification of the entire water column and the presence of sulphide in the bottom layer (Ciglenečki et al, 1996(Ciglenečki et al, , 1998Mihelčić et al, 1996;Stipaničev and Branica, 1996;Viličić et al, 1996). The community of the lake consisted of a limited number of species (adapted to the specific physical-chemical conditions in the lake).…”

Section: Resumen: Evento De Mortalidad Masiva En Un Pequeño Lago Salimentioning

confidence: 99%

Mass mortality event in a small saline lake (Lake Rogoznica) caused by unusual holomictic conditions

Barić¹,

Grbec²,

Kušpilić³

et al. 2003

Sci. Mar.

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“…In anoxic waters such as the Black Sea (Luther 1991;Luther and Campbell 1991;Truesdale et al 2001b), some deep trenches (Wong and Brewer 1977;Wong et al 1985;Ullman et al 1990), and parts of some estuaries (e.g., Luther and Cole 1988;Abdel-Moati 1999;Truesdale et al 2001a), only iodide is present. There is also mounting evidence that iodate can be reduced (chemically) in hypoxic waters (Stipaničev and Branica 1996;Ž ic and Branica 2006a;Ž ic et al 2008. Dissolved organic-I has been observed in coastal waters and estuaries Wong and Cheng 1998;Zhang 2001, 2003) but concentrations are small offshore (Truesdale 1975).…”

mentioning

confidence: 97%

Preliminary Evidence for Iodate Reduction in Bottom Waters of the Gulf of Mexico During an Hypoxic Event

Chapman

Truesdale

2011

Aquat Geochem

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The distributions of iodate and total inorganic iodine concentrations in the waters on the Texas-Louisiana shelf in April, June, and August 2004 are described. Iodine-salinity graphs show three-end-member mixing involving onshore and offshore surface waters and deep offshore water. The April survey showed simple mixing on the surface, but in the later surveys, iodate concentrations were often much lower than predicted by the mixing curve while those for total inorganic iodine were higher. This demonstrated both iodate reduction in the water and iodide addition, although individual samples did not show equivalent speciation changes. Hydrographically, the system consists of the estuaries of the Mississippi and Atchafalaya rivers as they spill onto the shelf. The waters are stratified seasonally by a robust halocline, leading to hypoxia in the bottom waters from the combined effect of restricted downward diffusion of oxygen and the sinking of the luxuriant growth of phytoplankton induced by riverine nutrient supply. The distributions of iodate and total inorganic iodine are, therefore, interpreted in terms of water-sediment interaction as the shelf shoals to the north.

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Iodine speciation in the water column of the Rogoznica Lake (Eastern Adriatic Coast)

Cited by 33 publications

References 15 publications

Circumstantial evidence in support of org-I as a component of the marine aerosol arising from a study of marine foams

Circumstantial evidence in support of org-I as a component of the marine aerosol arising from a study of marine foams

Mass mortality event in a small saline lake (Lake Rogoznica) caused by unusual holomictic conditions

Preliminary Evidence for Iodate Reduction in Bottom Waters of the Gulf of Mexico During an Hypoxic Event

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