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Journal of Marine Biology
Volume 2014 (2014), Article ID 640785, 4 pages
http://dx.doi.org/10.1155/2014/640785
Research Article

Ecological Significance of the Association between Stomopneustes variolaris (Echinoidea) and Lumbrineris latreilli (Polychaeta) from Visakhapatnam Coast, India

Department of Marine Living Resources, Andhra University, Visakhapatnam, Andhra Pradesh 530 002, India

Received 17 May 2014; Revised 7 July 2014; Accepted 27 July 2014; Published 14 August 2014

Academic Editor: Evgeny Pakhomov

Copyright © 2014 Archana Ayyagari and Ramesh Babu Kondamudi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present study reports a new association between the sea urchin Stomopneustes variolaris (Lamarck, 1816) and the polychaete Lumbrineris latreilli (Audouin & Milne Edwards, 1834) based on the specimens collected intertidally at Bay of Bengal (Visakhapatnam, east coast of India). Out of 60 sea urchins collected, 10 (16.67%) were associated with the polychaete. The prevalence increased with the increasing sea urchin test diameter. All polychaetes were exclusively found between the spines, in the aboral region of the host. This association protects the polychaete from the predators during displacement from its natural habitat.