Barcoding, phylogeography and species boundaries in clownfishes of the Indian Ocean

DNA Barcodes ◽  
2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Kottila Veettil Dhaneesh ◽  
Thipramalai Thankappan Ajith Kumar ◽  
Appukuttannair Biju Kumar

AbstractIn this study, barcoding of 13 clownfish species of the Indian Ocean was carried out to infer the phylogenetic relationships among them by analyzing cytochrome oxidase 1 (CO1) and cytochrome

2020 ◽  
Vol 68 (4) ◽  
pp. 323-331
Author(s):  
Wilfred John E. Santiañez ◽  
Dhia Al‐Bader ◽  
John A. West ◽  
John J. Bolton ◽  
Kazuhiro Kogame

2021 ◽  
Vol 34 ◽  
pp. 1
Author(s):  
M. M. Mahbub Alam ◽  
Snæbjörn Pálsson

The genus Parapenaeopsis is an important group of marine shrimps for wild capture in the Indo-West Pacific region. Phylogenetics of penaeid shrimps is still a debatable issue. This study focuses on the phylogenetic relationships among seven species within the genus Parapenaeupsis, the population genetic variation of Parapenaeupsis sculptilis along Bangladesh coastline of the Bay of Bengal and the phylogeography of P. sculptilis in the Indian Ocean region by analysing cytochrome oxidase subunit 1 barcode (CO1) sequence. No population structure was detected in P. sculptilis collected from two sampling sites along the Bangladesh coastline (AMOVA and Φ ST = ‑0.014, p > 0.05; F ST = 0.061, p = 0.04), which expanded first around 73 (CI: 36‑119) kyr ago. The genealogical relationships in Bangladesh P. sculptilis population are shallow with haplotype diversity (h) of 0.58 and nucleotide diversity (π) of 0.0014. The different P. sculptilis samples from Bangladesh, India and Mozambique of the Indian Ocean revealed connectivity between western Indian Ocean and the Bay of Bengal. The phylogeny within the genus Parapenaeupsis showed a polyphyletic relationships for P. hardickwii and its taxonomy needs to be reevaluated. The study will help for genetic upgradation in aquaculture and monitoring of the population genetic diversity of P. sculptilis.


Author(s):  
Raya Muttarak ◽  
Wiraporn Pothisiri

In this paper we investigate how well residents of the Andaman coast in Phang Nga province, Thailand, are prepared for earthquakes and tsunami. It is hypothesized that formal education can promote disaster preparedness because education enhances individual cognitive and learning skills, as well as access to information. A survey was conducted of 557 households in the areas that received tsunami warnings following the Indian Ocean earthquakes on 11 April 2012. Interviews were carried out during the period of numerous aftershocks, which put residents in the region on high alert. The respondents were asked what emergency preparedness measures they had taken following the 11 April earthquakes. Using the partial proportional odds model, the paper investigates determinants of personal disaster preparedness measured as the number of preparedness actions taken. Controlling for village effects, we find that formal education, measured at the individual, household, and community levels, has a positive relationship with taking preparedness measures. For the survey group without past disaster experience, the education level of household members is positively related to disaster preparedness. The findings also show that disaster related training is most effective for individuals with high educational attainment. Furthermore, living in a community with a higher proportion of women who have at least a secondary education increases the likelihood of disaster preparedness. In conclusion, we found that formal education can increase disaster preparedness and reduce vulnerability to natural hazards.


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