<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-IE" style="mso-ansi-language: EN-IE"><font size="3"><font face="Times New Roman">Thanks a lot for the information.</font></font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-IE" style="mso-ansi-language: EN-IE"><font size="3"><font face="Times New Roman">I suppose when the record is composed of multiple <span style="mso-spacerun: yes"> </span>specimens <span style="mso-spacerun: yes"> </span>(whose number is recorded in ObservedIndividualCount) the individual attributes of each specimen (age, sex, maturity, etc) cannot be stored.</font></font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-IE" style="mso-ansi-language: EN-IE"><font face="Times New Roman" size="3"> </font></span></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><span lang="EN-IE" style="mso-ansi-language: EN-IE"><font size="3"><font face="Times New Roman">Tomas Bar</font></font></span></p><br><br>
<div class="gmail_quote">On Fri, Nov 28, 2008 at 4:14 PM, Tim Robertson <span dir="ltr"><<a href="mailto:trobertson@gbif.org">trobertson@gbif.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div style="WORD-WRAP: break-word">Hi T. Bar
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<div>You might consider the OBIS extensions for Darwin Core since you are concerned with marine stuff.</div>
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<div><a href="http://iobis.org/obis/obis.xsd" target="_blank">http://iobis.org/obis/obis.xsd</a></div>
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<div><span style="FONT-SIZE: 10px; FONT-FAMILY: Times"><pre style="WORD-WRAP: break-word">SampleSize: the size of the sample from which the collection/observation was drawn. It can be a volume (e.g. for a phytoplankton sample), a linear distance (e.g. for a visual transect or net haul), a surface area (e.g. for a benthic core), etc. This field must also include the units, e.g. 200 mfor a transect, or 0.25 m^2 for a benthic grab (use ^ to denote a superscript). Note that when multiple collections/observations are reported from the same physical sample, a code identifying the sample can be placed in the Field_Number field to allow all collections/observations from a single sample to be connected. </pre>
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<div>IndividualCount is a count of specimens (e.g. not a count of species). If you want to indicate multiple species, then you would have a record for each along with the identification and the count of individuals of that species.</div>
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<div>So in the OBIS schema you have:</div>
<div><span style="FONT-SIZE: 10px; FONT-FAMILY: Times"><pre style="WORD-WRAP: break-word">ObservedIndividualCount: The number of individuals (abundance) found in a collection/record event.</pre><pre style="WORD-WRAP: break-word">
<br></pre><pre style="WORD-WRAP: break-word">Cheers,</pre><pre style="WORD-WRAP: break-word">Tim</pre><pre style="WORD-WRAP: break-word"><br></pre></span></div>
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<div class="Wj3C7c">
<div>On 28 Nov 2008, at 17:05, bar tomas wrote:</div><br></div></div>
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<div style="MARGIN: 0cm 0cm 0pt"><font face="Times New Roman" size="3">Sorry if this question is misplaced in this discussion list, but I haven't been able to find a mailing list on the conceptual aspects of Darwin Core.</font></div>
<p style="MARGIN: 0cm 0cm 0pt"><font face="Times New Roman" size="3"> </font></p>
<div style="MARGIN: 0cm 0cm 0pt"><font size="3"><font face="Times New Roman">I am interested to know if there are any recommendations on how to represent abundance in Darwin Core. I have seen some datasets using IndividualCount and SampleSize. For instance, for a fishing survey, would you use IndividualCount for the number of species in a catch, and SampleSize for the distance towed?</font></font></div>
<p style="MARGIN: 0cm 0cm 0pt"><font face="Times New Roman" size="3"> </font></p>
<div style="MARGIN: 0cm 0cm 0pt"><font face="Times New Roman" size="3">Thank you very much</font></div></div></div>_______________________________________________<br>tdwg-tapir mailing list<br><a href="mailto:tdwg-tapir@lists.tdwg.org" target="_blank">tdwg-tapir@lists.tdwg.org</a><br>
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