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Systematics, zoogeography and affinity of boring sponges infesting the brown mussel, Perna indica Kuriakose and Nair from the southwest coast of India

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Relation http://eprints.cmfri.org.in/10737/
http://mbai.org.in/php/journal.php
 
Title Systematics, zoogeography and affinity
of boring sponges infesting the brown
mussel, Perna indica Kuriakose and Nair
from the southwest coast of India
 
Creator Sunil Kumar, P
Thomas, P A
 
Subject Sponges
Molluscan Fisheries
 
Description A study on the boring sponges infesting the brown mussel
population of the southwest coast of India was initiated in
1998, and bored shells collected from five major mussel
fishing centres along the coast were analysed on a regular
basis. It could be seen that out of 5,600 shells examined
during 1998-2000 period, 997 shells were found
infested with boring sponges registering an overall
incidence of 17.8%, and this, when compared with 3-8 %
noticed in natural molluscan beds was too high. The total
number of boring sponge species recorded from mussel is
nine, and these fall under two families and four genera,
the most speciose genus being Cliona with five species.
The Enayam centre accounted for all the nine species, and
the two new infiltrants, Pione margaritifera and C. lobata
formed a common factor with high specific incidence (%)
in all the centres surveyed. Out of three conventional
species, only two viz. Cliona celata and Pione vasitifca
were present in all the centres surveyed with subdued
activity and lower incidence %. Pione carpenteri, the third
conventional species, could be collected only from Enayam
and Kadiyapatnam. Cliothosa hancocki, Thoosa armata
and Siphonodictyon minutum were present only at Enayam
and were new records to brown mussel. Another species,
Alectona wallichii, is also recorded from Enayam. During
the present study it could be ascertained that P. vastifica,
a conventional boring species of molluscs, has succeeded
in colonizing the estuarine realms of Ashtamudi Lake,
Kollam due to its euryhaline nature, and hence form a
major threat to any molluscan culture farm along this
estuary in future. Systematics, description, distribution of
all the nine species along with illustrations are given in this
paper.
 
Publisher MBAI, Cochin-14
 
Date 2015
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/10737/1/3.%20JMBAI%2057-2%20ART6.pdf
Sunil Kumar, P and Thomas, P A (2015) Systematics, zoogeography and affinity of boring sponges infesting the brown mussel, Perna indica Kuriakose and Nair from the southwest coast of India. Journal of the Marine Biological Association of India, 57 (2). pp. 37-45. ISSN 2321-7898