<div><p>See Supplemental File "<a href="https://datadocs.bco-dmo.org/file/1V9XLvnhqm3xZl/Series5_Acclimatization_Data_Methods.pdf" target="_blank">Series5_Acclimatization_Data_Methods.pdf</a>"</p></div>
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers: ambient treatments
<div><p>The increase in partial pressure of CO2 (pCO2) is causing ocean acidification, which impacts the growth rates and elemental composition of phytoplankton. Here, shifts in growth rates and cell quotas of <em>Thalassiosira weissflogii</em> grown under a variety of different temperatures, irradiances, and pCO2 conditions are discussed. The presented data suggest that acclimatization times of exponentially growing diatoms to environmental perturbations may be weeks to months, rather than days to weeks. The response of acclimatized <em>T. weissflogii</em> to pCO2 depended on irradiance and temperature and was highly interactive, non-linear, and non-uniform. A very significant negative effect of pCO2 was observed under growth conditions that were light-, and temperature-limited; a smaller, but still significant negative response was seen under light-limiting growth conditions, whereas pCO2 did not affect growth rates of <em>T. weissflogii</em> under light-saturated growth conditions. Cell quotas of organic carbon, nitrogen, or chlorophyll <em>a</em> were linked to growth rate. The cell-normalized production of transparent exopolymer particles (TEP) was positively correlated with POC cell quotas, with some minor impact of irradiance and pCO2 on the relationship. This correlation of TEP production with carbon cell quotas is consistent with the hypothesis that extracellular release is an inherent component of cell metabolism. Results suggest that elevated pCO2 functions as an (additional) metabolic stressor for <em>T. weissflogii</em> and that the interaction of different stressors determines growth rates and cell characteristics in a complex, non-linear relationship.</p></div>
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers: ambient treatments
<div><p>See Supplemental File "<a href="https://datadocs.bco-dmo.org/file/1V9XLvnhqm3xZl/Series5_Acclimatization_Data_Methods.pdf" target="_blank">Series5_Acclimatization_Data_Methods.pdf</a>"</p>
<p><strong>BCO-DMO Processing Notes</strong><br />
Original file: "Acclimat Datafor BCODMO.xlsx" contributed by Uta Passow<br />
Sheet: "rawCell#"<br />
- Approx Lat/Lon of Passow Lab appended to enable data discovery in MapServer<br />
- "nd" (no data) inserted into blank cells<br />
- Parameter names edited to conform to BCO-DMO naming convention found at <a href="http://usjgofs.whoi.edu/naming-guidelines.html" target="_blank">Choosing Parameter Name</a></p></div>
540158
Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers: ambient treatments
2014-11-19T19:01:56-05:00
2014-11-19T19:01:56-05:00
2023-04-24T14:43:01-04:00
urn:bcodmo:dataset:540158
pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers - ambient treatments from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project)
pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers - ambient treatments from UCSB MSI Passow Lab from 2009 to 2010
false
Passow, U., Laws, E. (2023) pCO2 as one of multiple stressors for Thalassiosira weissflogii - cell numbers - ambient treatments from UCSB MSI Passow Lab from 2009 to 2010 (OA - Ocean Acidification and Aggregation project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2014-11-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.540158.1 [access date]
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10.26008/1912/bco-dmo.540158.1
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https://www.bco-dmo.org/dataset/540158/data
2014-11-13
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