Buffers of known quality for the calibration of seawater pHTmeasurements are not widely or commercially available. Although there exist published compositions for the 0.04 mol kg‐H2O−1equimolar buffer 2‐amino‐2‐hydroxymethyl‐1,3‐propanediol (TRIS)‐TRIS · H+in synthetic seawater, there are no explicit procedures that describe preparing this buffer to achieve a particular pHTwith a known uncertainty. Such a procedure is described here which makes use of easily acquired laboratory equipment and techniques to produce a buffer with a pHTwithin 0.006 of the published pHTvalue originally assigned by DelValls and Dickson (1998), 8.094 at 25°C. Such a buffer will be suitable for the calibration of pH measurements expected to fulfil the “weather” uncertainty goal of the Global Ocean Acidification Observation Network of 0.02 in pHT, an uncertainty goal appropriate to “identify relative spatial patterns and short‐term variation.”
Marine habitat‐forming species often play critical roles on rocky shores by ameliorating stressful conditions for associated organisms. Such ecosystem engineers provide structure and shelter, for example, by creating refuges from thermal and desiccation stresses at low tide. Less explored is the potential for habitat formers to alter interstitial seawater chemistry during their submergence. Here, we quantify the capacity for dense assemblages of the California mussel,
- Award ID(s):
- 1636191
- PAR ID:
- 10458966
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Limnology and Oceanography
- Volume:
- 65
- Issue:
- 1
- ISSN:
- 0024-3590
- Format(s):
- Medium: X Size: p. 157-172
- Size(s):
- p. 157-172
- Sponsoring Org:
- National Science Foundation
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