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            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset/869110.rdf" xlink:actuate="onRequest">Water chemistry during mesocosm study of trophic interactions under ocean acidification in Bodega Bay, CA.</gmx:Anchor>
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                        <gco:Date>2022-03-16</gco:Date>
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                <gmx:Anchor xlink:href="http://orcid.org/0000-0001-6425-3160" xlink:title="ORCID" xlink:actuate="onRequest">Brian Gaylord</gmx:Anchor>
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                <gmx:Anchor xlink:href="https://ror.org/05rrcem69" xlink:title="ROR ID" xlink:actuate="onRequest">University of California - Davis: Bodega Marine Laboratory</gmx:Anchor>
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            <gco:CharacterString>Cite this dataset as: Jellison, B., Gaylord, B. (2022) Water chemistry during mesocosm study of trophic interactions under ocean acidification in Bodega Bay, CA. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-03-09 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.869110.1 [access date]</gco:CharacterString>
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        <gco:CharacterString>Methods and Sampling: &amp;lt;p&amp;gt;This dataset is part of a larger experiment to investigate how pH influences trophic links between intertidal sea stars (&amp;lt;em&amp;gt;Leptasterias hexactis&amp;lt;/em&amp;gt;), snails (&amp;lt;em&amp;gt;Tegula funebralis&amp;lt;/em&amp;gt;), and macroalgae (&amp;lt;em&amp;gt;Mazzaella flaccida)&amp;lt;/em&amp;gt;. Organisms were placed for 7 days in mesocosms containing seawater at either ambient (~7.9) or low pH (~7.0). The pH was modified using equimolar additions of sodium bicarbonate (NaHCO3) and hydrochloric acid (HCl). The water in each container was changed daily. The mesocosm array consisted of 40, 13-liter (L) circular plastic containers with a mesh barrier down the center to separate predator, prey, and/or basal resource but allowing for passage of waterborne cue. Mesocosms were filled halfway with seawater, allowing 10 centimeter (cm) of refuge space for snails above the waterline. Mesocosms were held within a seawater table under constant flow to maintain consistent temperatures.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Temperature, salinity, dissolved oxygen, and pH were measured using a YSI ProPlus Sensor.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Total pH was measured using a Sunburst SAMI spectrophotometric unit modified for benchtop use.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Total alkalinity was measured via Gran titration (Riebesell et al.&amp;amp;nbsp;2010) standardized using certified reference material (A. Dickson, Scripps Institution of Oceanography) using a Metrohm 855 autotitrator.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Values of total pH for each container were measured using a YSI ProPlus Sensor and calibrated to the total scale using daily samples run on a Sunburst SAMI spectrophotometric unit modified for benchtop use.&amp;lt;/p&amp;gt;</gco:CharacterString>
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        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/712798.rdf" xlink:title="OCE-1636191" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1636191 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1636191</gmx:Anchor>
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            <gmx:Anchor xlink:href="https://ror.org/05rrcem69" xlink:title="ROR ID" xlink:actuate="onRequest">University of California - Davis: Bodega Marine Laboratory</gmx:Anchor>
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The absorption of human-produced carbon dioxide into the world's oceans is altering the chemistry of seawater, including decreasing its pH. Such changes, collectively called &quot;ocean acidification&quot;, are expected to influence numerous types of sea creatures. This project examines how shifts in ocean pH affect animal behavior and thus interactions among species. It uses a case study system that involves sea star predators, snail grazers that they eat, and seaweeds consumed by the latter. The rocky-shore habitats where these organisms live have a long history of attention, and new findings from this work will further extend an already-large body of marine ecological knowledge. The project provides support for graduate and undergraduate students, including underrepresented students from a nearby community college. The project underpins the development of a new educational module for local K-12 schools. Findings will moreover be communicated to the public through the use of short film documentaries, as well as through established relationships with policy, management, and industry groups, and contacts with the media.&lt;/p&gt;
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http://lod.bco-dmo.org/id/dataset-parameter/870702.rdf
	Name: Trophic_Treatment
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	Description: &lt;p&gt;Trophic treatment condition; “no-predator” = four snails and four circular pieces of macroalgae on one side of the barrier, “cue only&amp;quot; = one sea star was housed on one side of the barrier with four snails and macroalgae on the other side, &amp;quot;complete interaction&amp;quot; = one sea star, four snails, and macroalgae all placed on one side of the barrier together,  “no prey/no grazing” = one sea star was placed on one side of the barrier with the macroalgae on the other.&lt;/p&gt; 
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http://lod.bco-dmo.org/id/dataset-parameter/870710.rdf
	Name: Temperature
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http://lod.bco-dmo.org/id/dataset-parameter/870711.rdf
	Name: Total_pH
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	Description: &lt;p&gt;Total pH values for each container were processed using measurements from a YSI ProPlus Sensor and calibrated to the total scale using daily samples run on a Sunburst SAMI&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/870712.rdf
	Name: Alkalinity
	Units: µmol/kgSW
	Description: &lt;p&gt;Total alkalinity was measured via Gran titration (Riebesell et al.2010) standardized using certified reference material (A. Dickson, Scripps Institution of Oceanography) using a Metrohm 855 autotitrator&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/870713.rdf
	Name: pCO2
	Units: ppm
	Description: &lt;p&gt;pCO2 was calculated from daily alkalinity and pH using the seacarb package in R assuming the default dissociation constants.&lt;/p&gt; 
http://lod.bco-dmo.org/id/dataset-parameter/870714.rdf
	Name: SAMI_total_pH
	Units: pH units
	Description: &lt;p&gt;Total pH was measured using a Sunburst SAMI spectrophotometric unit modified for benchtop use&lt;/p&gt; 
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                <gco:CharacterString>&amp;lt;p&amp;gt;This dataset is part of a larger experiment to investigate how pH influences trophic links between intertidal sea stars (&amp;lt;em&amp;gt;Leptasterias hexactis&amp;lt;/em&amp;gt;), snails (&amp;lt;em&amp;gt;Tegula funebralis&amp;lt;/em&amp;gt;), and macroalgae (&amp;lt;em&amp;gt;Mazzaella flaccida)&amp;lt;/em&amp;gt;. Organisms were placed for 7 days in mesocosms containing seawater at either ambient (~7.9) or low pH (~7.0). The pH was modified using equimolar additions of sodium bicarbonate (NaHCO3) and hydrochloric acid (HCl). The water in each container was changed daily. The mesocosm array consisted of 40, 13-liter (L) circular plastic containers with a mesh barrier down the center to separate predator, prey, and/or basal resource but allowing for passage of waterborne cue. Mesocosms were filled halfway with seawater, allowing 10 centimeter (cm) of refuge space for snails above the waterline. Mesocosms were held within a seawater table under constant flow to maintain consistent temperatures.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Temperature, salinity, dissolved oxygen, and pH were measured using a YSI ProPlus Sensor.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Total pH was measured using a Sunburst SAMI spectrophotometric unit modified for benchtop use.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Total alkalinity was measured via Gran titration (Riebesell et al.&amp;amp;nbsp;2010) standardized using certified reference material (A. Dickson, Scripps Institution of Oceanography) using a Metrohm 855 autotitrator.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Values of total pH for each container were measured using a YSI ProPlus Sensor and calibrated to the total scale using daily samples run on a Sunburst SAMI spectrophotometric unit modified for benchtop use.&amp;lt;/p&amp;gt;</gco:CharacterString>
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- Adjusted field/parameter names to comply with BCO-DMO naming conventions&amp;lt;br /&amp;gt;
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