<?xml version="1.0" encoding="utf-8"?><article><front><Journal-meta><journal-id journal-id-type='publisher'>CWE/890/2017</journal-id><journal-title >Current World Environment</journal-title><issn pub-type='PPub'>0973-4929</issn><issn pub-type='ePub'>2320-8031</issn><publisher><publisher-name>Enviro Research Publishers</publisher-name></publisher></Journal-meta><article-meta><article-id pub-id-type='other'>CWE--36-00</article-id><title-group><article-title>Extent of Heavy Metal Accumulation in Sewage Irrigated Soils and Their Impact on Distribution of Earthworm Communities: Linking Chromium and Zinc Toxicity on Growth and Reproduction in Selected Earthworm Species.</article-title></title-group><contrib-group><contrib contrib-type='author'><name><surname></surname><given-names></given-names></name><xref ref-type='aff' rid='aff00'><sup></sup></xref></contrib><contrib contrib-type='author'><name><surname></surname><given-names></given-names></name><xref ref-type='aff' rid='aff00'><sup></sup></xref></contrib></contrib-group><aff id='aff001'><sup>1</sup><instname></instname>,<deptname>Department of Zoology</deptname>, <instaddress>Bangalore University</instaddress>, <instcity>Bangalore</instcity>, <instpincode>560 056</instpincode>, <instcountry>India</instcountry>.</aff><pub-date pub-type='ppub'><publicationDate>2016-04-30</publicationDate></pub-date><doi>10.12944/CWE.11.1.34</doi><volume>Volume 11</volume><issue>Volume 11</issue><page>279-290</page><abstract><title>Abstract</title><p>&lt;p&gt;Soil ecosystem polluted by metals affect the structure of soil invertebrate population(s) and dynamics leading to altered distribution of species. This study focuses on earthworm distribution in sewage irrigated agricultural lands around Bangalore. The occurrence of reported species from the sampled areas is &lt;em&gt;Eudrilus eugeniae&lt;/em&gt;, &lt;em&gt;Lampito maurutii, Pontoscolex corethrurus, Polypheretima elongata, Perioynx excavates&lt;/em&gt; and &lt;em&gt;Eisenia fetida.&lt;/em&gt; Laboratory studies conducted to evaluate feed ingestion rate and body mass changes in earthworms exposed to metal spiked soils revealed species specific pattern. &lt;em&gt;Eudrilus eugeniae&lt;/em&gt; and &lt;em&gt;Lampito maurutii &lt;/em&gt;showed a steep increase in body weight, while &lt;em&gt;Pontoscolex corethrurus&lt;/em&gt; exhibited decreased trend upon Zn exposure. Contrarily a significant (&lt;em&gt;p&lt;/em&gt;&amp;lt;0.05) decline in body weight was evident in all the three species upon exposure to Cr spiked soils. The observed alterations in feeding and body mass index concomitantly influenced the reproductive parameters. Rate of hatchability and reproductive function found to be decreased in Cr spiked soils in all the three species studied. Contrarily,&amp;nbsp;&amp;nbsp; increased hatchability was observed in &lt;em&gt;E.eugeniea&lt;/em&gt; and &lt;em&gt;L.maurutii&lt;/em&gt; followed by a decrease rate in &lt;em&gt;P.corethrurus &lt;/em&gt;upon exposure of Zn spiked soils. However, reproductive rate found to be increased in &lt;em&gt;E.eugeniea&lt;/em&gt; and &lt;em&gt;P.corethrurus&lt;/em&gt; with decreased trend in &lt;em&gt;L.maurutii&lt;/em&gt;. Thus, use of sewage polluted water for irrigation purpose has led to increased soil metal concentration impacting earthworm physiology and distribution.&lt;/p&gt;
</p></abstract><kwd-group><title>Keywords</title><kwd>Heavy metal toxicity</kwd><kwd> Earthworm prevalence</kwd><kwd> Feeding and body mass changes</kwd><kwd> Reproductive parameters</kwd></kwd-group><counts><ref-count count='' /><page-count count='' /></counts></article-meta></front></article>