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Antifouling activities of marine sedentary invertebrates .on some macrofoulers

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Title Antifouling activities of marine sedentary invertebrates .on some macrofoulers
 
Creator Wilsanand, V
Wagh, A B
Bapuji, M
 
Description 280-284
Antifouling
activities of alcohol extracts from four gorgonian species (Melitodes sp.,
Gorgonella sanguinolenta, Echinogorgia complexa, Acanthogorgia turgida), five
soft corals [Dendronephthya sp. 1, Dendronephthya sp. 2, Dendronephthya
(Roxasia) sp., Dendronephthya (Morchellana) sp., Dendronephthya
(Spongodes) sp], three unidentified

antipatharian species (coded
as antipatharian sp. 1, antipatharian sp.2, antipatharian sp.3) and five
sponges [Plakortis simplex, Axinella sp., Fasciospongia cavernosa,
Azorica pfeifferae , Dercitopsis sp.] against cyprids of the barnacle
Balanus amphitrite and green mussel Perna viridis are reported
here. All the extracts examined inhibited the settlement of cyprids of B.amphitrite.
The EC50 values of the extracts ranged from 16 ± 3 μg/ml
(antipatharian sp.2) to 150 ± 8 μg/ml (antipatharian sp. 3). The LC50
values of the extracts varied from 38 ± 3.8 μg/ml [Dendronephthya (Roxasia) sp.]
to 218 ± 30.6 μg/ml(Fasciospongia cavernosa). A comparison of the EC50
and LC50 values reveal that most of the extracts are non toxic to
the cyprids of B. amphitrite . In the case of P. viridis only 7
out of 17 extracts (41%) inhibited byssal production and attachment. Gorgonian
coral extracts displayed highest incidence of attachment inhibitory activity
(75%) followed by soft corals (40%), antipatharians (33%) and sponges (20%),
when tested against P. viridis. The EC50 values of the
extracts ranged from 164 ± 12μg/ml (A. pfeifferae) to 898 ± 11μg/ml [Dendronephthya
(Morchellana) sp.]. Toxicity revival studies indicate that the transient
presence of active extracts did not cause irreversible damage to P. viridis.
The results indicate the possible potentialities of these extracts as natural
non toxic antifouling agents.
 
Date 2014-01-13T10:49:50Z
2014-01-13T10:49:50Z
1999-09
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25601
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(3) [September 1999]