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Response to Julian et al. (2015) “Comment on and Reinterpretation of Gabriel et al. (2014) ‘Fish Mercury and Surface Water Sulfate Relationships in the Everglades Protection Area’”

Overview of attention for article published in Environmental Management, April 2015
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Title
Response to Julian et al. (2015) “Comment on and Reinterpretation of Gabriel et al. (2014) ‘Fish Mercury and Surface Water Sulfate Relationships in the Everglades Protection Area’”
Published in
Environmental Management, April 2015
DOI 10.1007/s00267-015-0486-0
Pubmed ID
Authors

Mark C. Gabriel, Don Axelrad, William Orem, Todd Z. Osborne

Abstract

The purpose of this forum is to respond to a rebuttal submitted by Julian et al., Environ Manag 55:1-5, 2015 where they outlined their overall disagreement with the data preparation, methods, and interpretation of results presented in Gabriel et al. (Environ Manag 53:583-593, 2014). Here, we provide background information on the research premise presented in Gabriel et al. (Environ Manag 53:583-593, 2014) and provide a defense for this work using five themes. In spite of what Julian et al. perceive as limitations in the sampling methods and analytical tools used for this work, the relationships found between fish total mercury and surface water sulfate concentrations in Gabriel et al. (Environ Manag 53:583-593, 2014) are comparable to relationships between pore water methylmercury (MeHg) and pore water sulfate found in past studies indicating that sulfate is important to MeHg production and bioaccumulation in the Everglades. Julian et al. state "…there is no way to justify any ecosystem-wide sulfur strategy as a management approach to reduce mercury risk in the (Everglades) as suggested by Gabriel et al. (Environ Manag 53:583-593, 2014), Corrales et al. (Sci Tot Environ 409:2156-2162, 2011) and Orem et al. (Rev Environ Sci Technol 41 (S1):249-288, 2011)." We disagree, and having stated why sulfate input reduction to the Everglades may be the most effective means of reducing mercury in Everglades fish, it is important that research on sulfur and mercury biogeochemistry continues. If further studies support the relationship between sulfate loading reduction and MeHg reduction, sulfur mass balance studies should commence to (1) better quantify agricultural and connate seawater sulfate inputs and (2) define opportunities to reduce sulfate inputs to the Everglades ecosystem.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 12 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Indonesia 1 8%
Canada 1 8%
Unknown 10 83%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 3 25%
Student > Master 2 17%
Researcher 2 17%
Professor 1 8%
Student > Bachelor 1 8%
Other 2 17%
Unknown 1 8%
Readers by discipline Count As %
Environmental Science 5 42%
Agricultural and Biological Sciences 2 17%
Pharmacology, Toxicology and Pharmaceutical Science 1 8%
Social Sciences 1 8%
Chemistry 1 8%
Other 1 8%
Unknown 1 8%