 wildcard
search term (e.g. <code>catchment = "702%"</code>), or don't set the arg if you
want all catchments in the database.</p></dd>


<dt>catchment_name</dt>
<dd><p>catchment name. e.g. <code>catchment_name = "Hinds R"</code>. 
Case sensitive. Don't set the arg if you want all catchments in the database.</p></dd>


<dt>water_body</dt>
<dd><p>water body name. e.g. to get all records for Limestone
Creek, <code>water_body = "Limestone Creek"</code>. Don't set the arg if you
want all water bodies in the dat