<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV class=titlegroup>
<DIV class=title-document>
<H2><A href="http://www3.interscience.wiley.com/journal/118545114/home">Aquaculture Research</A></H2>
<DIV class=volIss><STRONG><A href="http://www3.interscience.wiley.com/journal/122651573/issue">Volume 40 Issue 15</A>, Pages 1750 - 1758</STRONG></DIV>
<P class=pubOnline><STRONG>Published Online: </STRONG>22 Jul 2009</DIV></DIV>
<DIV class=title-document> </DIV>
<DIV class=title-document>A preliminary evaluation of physiological filtration variables for <SPAN class=i><EM>Crassostrea corteziensis</EM></SPAN> (Hertlein, 1951) and <SPAN class=i><EM>Anadara tuberculosa</EM></SPAN> (Sowerby, 1833) in shrimp aquaculture effluents</DIV></DIV>
<DIV class=author-info><SPAN class=name><SPAN class=forenames>Emilio</SPAN> <SPAN class=surname>Peña-Messina</SPAN> <SUP><NOBR>1</NOBR></SUP> </SPAN>, <SPAN class=name><SPAN class=forenames>Luis Rafael</SPAN> <SPAN class=surname>Martínez-Córdova</SPAN> <SUP><NOBR>2</NOBR></SUP> </SPAN>, <SPAN class=name><SPAN class=forenames>Luis Fernando</SPAN> <SPAN class=surname>Bückle-Ramírez</SPAN> <SUP><NOBR>3</NOBR></SUP> </SPAN>, <SPAN class=name><SPAN class=forenames>Manuel Alberto</SPAN> <SPAN class=surname>Segovia-Quintero</SPAN> <SUP><NOBR>3</NOBR></SUP> </SPAN>& <SPAN class=name><SPAN class=forenames>José Antonio</SPAN> <SPAN class=surname>Zertuche-González</SPAN> <SUP><NOBR>4</NOBR></SUP> </SPAN>
<DIV class=addresses><SPAN class=address><A class=invisible-anchor name=a1><FONT color=#336699> </FONT></A><SPAN id=a1> <SPAN class=number><SUP><NOBR>1</NOBR></SUP> </SPAN>Dirección de Fortalecimiento de la Investigación Científica, Universidad Autónoma de Nayarit, Nayarit, México</SPAN> <BR><A class=invisible-anchor name=a2><FONT color=#336699> </FONT></A><SPAN id=a2> <SPAN class=number><SUP><NOBR>2</NOBR></SUP> </SPAN>Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Sonora, México</SPAN> <BR><A class=invisible-anchor name=a3><FONT color=#336699> </FONT></A><SPAN id=a3> <SPAN class=number><SUP><NOBR>3</NOBR></SUP> </SPAN>Centro de Investigación Científica y Educación Superior de Ensenada, Baja California, México</SPAN> <BR><A class=invisible-anchor name=a4><FONT color=#336699> </FONT></A><SPAN id=a4> <SPAN class=number><SUP><NOBR>4</NOBR></SUP> </SPAN>Instituto de Investigaciones
Oceanográficas, Universidad Autónoma de Baja California, México</SPAN> </SPAN></DIV>
<DIV class=correspondence-address><A class=invisible-anchor name=c1><FONT color=#336699> </FONT></A><SPAN id=c1> <SPAN class=b><STRONG>Correspondence:</STRONG></SPAN> Dr L R Martínez-Córdova, Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, PO Box 1819, Hemosillo, Sonora 83000, México. E-mail: <A class=externallink href="mailto:lmtz@guaymas.uson.mx"><FONT color=#336699>lmtz@guaymas.uson.mx</FONT></A></SPAN> </DIV></DIV>
<DIV class=header-footnotes>
<DIV class=bpg40copyright>Copyright Journal compilation © 2009 Blackwell Publishing Ltd</DIV></DIV>
<DIV class=keywords-block xmlns="http://www.w3.org/1999/xhtml">
<DIV class=keyword-title>KEYWORDS</DIV>
<DIV class=keywords>filtration variables • <SPAN class=i><EM>Crassostrea corteziensis</EM></SPAN> • <SPAN class=i><EM>Anadara tuberculosa</EM></SPAN> • biofiltration • bioremediation</DIV></DIV>
<DIV class=abstract-content id=abstract xmlns="http://www.w3.org/1999/xhtml">
<DIV class=summary>
<DIV class=header_divide>
<H1 class=abstract-title id=h0>ABSTRACT</H1></DIV>
<P class=para>This study examined the main filtration variables [filtration rate (<SPAN class=i><EM>FR</EM></SPAN>), clearance rate (<SPAN class=i><EM>CR</EM></SPAN>) and assimilation efficiency (<SPAN class=i><EM>AE</EM></SPAN>)] of the Cortez oyster, <SPAN class=i><EM>Crassostrea corteziensis</EM></SPAN> (Hertlein, 1951), and the mud cockle, <SPAN class=i><EM>Anadara tuberculosa</EM></SPAN> (Sowerby, 1833), in shrimp aquaculture effluents at three different flux velocities (1.5, 3 and 4.5 L h<SUP><NOBR>−1</NOBR></SUP>) using a 36-respirometer system, each with a 0.5 L capacity. Under inverted photoperiod conditions, free variations in the environmental parameters were allowed to mimic effluent conditions during a pair of 12-h trials. The <SPAN class=i><EM>FR</EM></SPAN>s for both species (0.124, 0.328 and 0.402 L h<SUP><NOBR>−1</NOBR></SUP> for the Cortez oyster; 0.093, 0.189 and
0.345 L h<SUP><NOBR>−1</NOBR></SUP> for the mud cockle) were relatively low as compared with those reported for similar or related species. The <SPAN class=i><EM>CR</EM></SPAN>s were higher for the Cortez oyster (20.04, 52.92 and 64.70 L h<SUP><NOBR>−1</NOBR></SUP>) than for the mud cockle (10.96, 22.95 and 42.12 L h<SUP><NOBR>−1</NOBR></SUP>); in both cases, the values were in the range reported previously for the last species. The <SPAN class=i><EM>AE</EM></SPAN> for both mollusks (over 92% for the Cortez oyster and over 95% for the mud cockle) was very high and greater than that found by other authors for the same or related species. The three filtration variables were better at higher effluent flux velocities. These preliminary results strongly suggest that both species are good candidates to be considered for bioremediation of aquaculture effluents.</DIV></DIV></DIV></td></tr></table><br>