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Non- indigenous ascidians in V. O. Chidambaram port, Thoothukudi, India

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Title Non- indigenous ascidians in V. O. Chidambaram port, Thoothukudi, India
 
Creator Ali, H. Abdul Jaffar
Tamilselvi, M.
Sivakumar, V.
 
Subject Ascidians
Invasive species
V. O. Chidambaram port
Thoothukudi coast
Cryptogenic species
 
Description 2147-2157
V.
O. Chidambaram port, formerly Tuticorin port, is one among the 12 major ports
in India with regular
services to United States,
Europe, China, Red sea port and Mediterranean
countries and so serving as gateway for bioinvasion.  Ascidians belonging to the Class Ascidiacea
of sub-Phylum Tunicata are abundant in many ports around the world and most of
them are non-indigenous. They are one of the key ecological groups because of
their invasive potential and ability to thrive in eutrophic environments.
During a survey of the port area over the past three years (2011-2013), sixteen
species of ascidians were identified belonging to diverse families: Ascidiidae
(4), Styelidae (2), Pyuridae (4), Polycitoridae (2), and Didemnidae (4). Among
the identified species, Phallusia nigra,
P. arabica, Ascidia gemmata, Microcosmus exasperates, Herdmaniapallida,
Eudistoma viride, E. laysani, Didemnum psammatode and Diplosomasimilis are classified as cryptogenic species while M. squamiger, M. stoloniferus,
Styelacanopus, A. sydneiensis Didemnum candidum, Lissoclinum fragile and Eusynstyela tincta are invasive species.
Presence of large number of cryptogenic and invasive ascidians in this harbour
reinforces the need for continued and periodic monitoring of population
expansion of these species and also for establishment of control programme.
Utilization of non–indigenous ascidians for the betterment of humankind may be
considered as one of management strategies of non–indigenous species.
 
Date 2016-06-30T06:02:06Z
2016-06-30T06:02:06Z
2014-11
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34586
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(11) [November 2014]