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V Cephalopods

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Relation http://eprints.cmfri.org.in/645/
 
Title V Cephalopods
 
Creator Sarvesan, R
 
Subject Cephalopods
 
Description The cephalopods (squids, cuttlefish and octopi) are exclusively marine
molluscs. These are commercially important and are fished in large quantities in
several countries. The average annual world catch of cephalopods during the
period 1963-1969 was 901 thousand tonnes which is about 30% of the average
total world mollusc production of 2,971 thousand tonnes for the same period
(Table VI). Represented by over 650 species (Choe, 1966), cephalopods occur
in all the oceans of the world, and are distributed from shallow inshore areas to
deep oceanic waters. They widely range in size from tiny sepiolids to giants like
Architeuthis sp, which grow to a size of over 60 feet in total length. They provide
food for man and form part of the diet of animals such as whales, seals,
oceanic birds and certain valuable food fishes.
Cephalopods are caught in seas around India in fair quantities, but largely
incidentally in nets that are operated for other commercial fishes, almost all
through the year. Several species have been reported but to mention a few of the
commonly occuring cephalopods are Sepia pharaonis Ehrenberg, S. aculeata
Ferussac & d'Orbigny, S. thurstoni Adam & Rees, S. brevimana Steenstrup and
Sepiella inermis (Ferussac & d'Orbigny) among cuttlefish, Sepioteuthis arctipinnis
Gould, Loligo duvauceli d'Orbigny, Loligo hardwickii, Loliolus investigatoris
Goodrich and Euprymna stenodactyla Grant among squids and Octopus dollfusi
Robson, O. rugosus (Bosc), O. globosus Appellof, O. herdmani Hoyle and
O. hongkongemis Hoyle among octopi (Rao, 1958; Silas, 1968).
 
Publisher CMFRI
 
Contributor Nair, R V
Rao, K Satyanarayana
 
Date 1974
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/645/1/R_Sarvesan.pdf
Sarvesan, R (1974) V Cephalopods. In: CMFRI Bulletin No.25, The Commercial molluscs of India. CMFRI, Mandapam Camp, pp. 63-83.