fa تخصصي Special پژوهشي Research <span style="font-size:11pt"><span style="line-height:120%"><span style="font-family:Calibri,sans-serif"><span lang="TR" style="font-size:12.0pt"><span style="line-height:120%"><span new="" roman="" style="font-family:" times="">The routine observation of by-catch specimen of sponges <i>Callyspongia fibrosa </i>(Ridely and Dendy, 1886) this species occurrence was recorded off Thoothukudi coast of Gulf of Mannar, Thoothukudi landing centre, Tamil Nadu, India, specimenwas caught together in trawls at (08&deg; 27.963&rsquo;N 78&deg; 23.450&rsquo;E), Kuzhyll Kuli at a depth of 185 M. The above said species that an indication of&nbsp; very rich in biodiversity off Thoothukudi coast, India. Unknown specimens of fauna and flora should be conserved by assessing the fisheries resources, stock assessment of by-catch specimens and population dynamics is significant in this coast.&nbsp; </span></span></span></span></span></span><br> &nbsp; Sponges Callyspongia fibrosa - Thoothukudi Coast - Tamil Nadu- India 47 50 http://injbir.com/browse.php?a_code=A-10-1-5&slc_lang=fa&sid=1 V. Thiruvengadam Yes Marinescape India Pvt Ltd,Aquatic Gallery, Ahmedabad, Gujarat, India P. De los Ríos-Escalante No Departamento de Ciencias Biológicas y Químicas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Casilla (PO-Box): 15-D, Temuco, CHILE K. Nazim No Services for Environment and Mangrove Protection, Pakistan