Some aspects of biology of Octopus defilippi Verany, 1851 from the northwest coast of India

‘Lilliput longarm octopus’, Octopus defilippi Verany, 1851 has been reported for the first time from Mumbai waters, northwest coast of India. This species was observed in trawl catches off Mumbai during March-June from 2007 onwards and the dorsal mantle length (DML) ranged between 52 and 99 mm. The...

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Bibliographic Details
Main Authors: Sundaram, Sujit, Deshmukh, V D
Format: Article in Journal/Newspaper
Language:English
Published: MBAI, Cochin 2010
Subjects:
DML
Online Access:http://eprints.cmfri.org.in/5840/
http://eprints.cmfri.org.in/5840/1/11.Suj.pdf
Description
Summary:‘Lilliput longarm octopus’, Octopus defilippi Verany, 1851 has been reported for the first time from Mumbai waters, northwest coast of India. This species was observed in trawl catches off Mumbai during March-June from 2007 onwards and the dorsal mantle length (DML) ranged between 52 and 99 mm. The left arm ratio is 3>2>4>1 and the right arm ratio is 2>4>1>3. Relationship between DML and total body weight (TBW) was TBW = 0.01361 * DML 1.83443. Fish formed the major food item with 93.3% and 70.6% of individuals in the samples in mature condition.