Ascidians in Coastal Water

Ali, Hamid; Tamilselvi, M.

doi:10.1007/978-3-319-29118-5

Cited by 4 publications

(3 citation statements)

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“…Further, Mondal et al (2018) studied the distribution of Tubastrea coccinea Lesson, 1830 which is again an invasive species in Andaman and Nicobar Islands. Renganathan (1981), Jaffar Ali et al (2010Ali et al ( , 2015, and Jaffar Ali and Tamilselvi (2016) identified some species of ascidians that are exotic and have now invaded the peninsular coast of India. The presence of these invasive ascidians has been further reported by Mondal et al (2015Mondal et al ( , 2017 and Mondal (2018) and has now been reported from Andaman and Nicobar Islands.…”

Section: Discussionmentioning

confidence: 99%

Invasion and potential risks of introduced exotic aquatic species in Indian islands

Raghunathan

Mondal

Chandra

2021

Aquatic Ecosystem Health &Amp; Management

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India is endowed with a wide range of ecosystems, of which oceanic island ecosystems viz. Andaman and Nicobar and Lakshadweep are unique and ecologically fragile because of the high degree of endemism in species composition. Altogether 25 species under different faunal groups such as cnidarians, polychaetes, cirripedes, mollusks, and ascidians are reported as invasive species in Indian islands, of which 24 species are found in Andaman and Nicobar Islands, while 4 species are available in Lakshadweep. Ship-mediated invasions, especially ballast water discharge and ship-hull fouling, are the major source of invasions as these islands are located in the vicinity of the international sea route. In the present paper, we have represented these non-native species of fauna and flora to discriminate and identify them as non-native or invasive. This study deals with the diversity and distribution of aquatic invasive species in islands and their detrimental impact on the island ecosystem.

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Section: Discussionmentioning

confidence: 99%

Invasion and potential risks of introduced exotic aquatic species in Indian islands

Raghunathan

Mondal

Chandra

2021

Aquatic Ecosystem Health &Amp; Management

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“…The specimens were identified morphologically using guidance books (Kott 2004;Ali and Tamilselvi 2016). Molecular identification of tunicates was using gene COI amplification.…”

Section: Specimen Identificationmentioning

confidence: 99%

“…Besides, some of these metabolites are toxic to cells and are potential to be used as pharmaceuticals (Kim et al 2015). It is noted that the members of Aplousobranchia are the best source of the natural product since 80% of the tunicates-original natural product were isolated from Clavelinids, Polyclinids, Polycitorids, and Didemnids (Ali and Tamilselvi 2016).…”

Section: Introductionmentioning

confidence: 99%

Bacteria associated with tunicate, Polycarpa aurata, from Lease Sea, Maluku, Indonesia exhibiting anti-multidrug resistant bacteria

et al. 2019

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Abstract. Ayuningrum D, Kristiana R, Nisa AA, Radjasa SK, Muchlissin SI, Radjasa OK, Sabdono A, Trianto A. 2019. Bacteria associated with tunicate, Polycarpa aurata, from Lease Sea, Maluku, Indonesia exhibiting anti-multidrug resistant bacteria. Biodiversitas 20: 956-964. Tunicate is a rich secondary metabolites producer with various biological activities whether as an original producer or produced by the associated microorganisms. In this study, a total of 11 tunicate specimens were identified as Polycarpa aurata with four color variations based on morphological characteristic and COI gene identification and BLAST analysis. The P. aurata associated-bacteria were isolated and tested for antimicrobial activity against multi-drug resistant (MDR) bacteria. A total of 86 axenic isolates were successfully purified. Furthermore, nine isolates (10.5%) exhibited antibacterial activity on preliminary screening. Nine prospective isolates were fermented in respective medium (Zobell 2216, modified M1 or modified ISP2 media) then extracted using ethyl acetate. The ethyl acetate extracts from liquid fermentation were tested against MDR Escherichia coli, MDR Bacillus cereus, Methicillin-Resistant Staphylococcus aureus (MRSA) and Methicillin-Sensitive and Staphylococcus aureus (MSSA). As a result, seven isolates (8.1%) still retained the activity at the extract concentration 150 µg/disk. Molecular analysis based on 16S rDNA sequencing revealed the most active isolates, TSB 47, TSC 10 and TSB 34 identified as Bacillus tropicus, Vibrio alginolyticus and Virgibacillus massiliensis, with BLAST homology 99%.

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Not-so-simple sieving by ascidians: re-examining particle capture at the mesh and organismal scales

et al. 2018

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Ascidians in Coastal Water

Cited by 4 publications

References 0 publications

Invasion and potential risks of introduced exotic aquatic species in Indian islands

Invasion and potential risks of introduced exotic aquatic species in Indian islands

Bacteria associated with tunicate, Polycarpa aurata, from Lease Sea, Maluku, Indonesia exhibiting anti-multidrug resistant bacteria

Not-so-simple sieving by ascidians: re-examining particle capture at the mesh and organismal scales

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