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Dhruba Chand Halder College

DHRUBACHAND HALDER COLLEGE

Qualification : M.Sc., Ph.D
Specialization : Entomology
Designation : State Aided College Teacher  (SACT-I)

B.Sc.  (2005):  Vidyasagar College, University of Calcutta
M.Sc.  (2007):  University of Calcutta
PhD (2014): 2014 University of Calcutta
TELEPHONE: (+91) 9831621588
E-MAIL: sarangi.poulami@gmail.com

AWARDS AND RECOGNITION

  • Qualified NET (2014)
  • 2012    Foreign Travel Award, Council of Scientific & Industrial Research (CSIR)
  • 2012    Foreign Travel Award, Department of Science & Technology (DST)

POSITION(s) HELD
College appointed CWTT, Department of Zoology, Dhruba Chand Halder College (2015-till date).
TEACHING EXPERIENCE
Teach all the topics related to theoretical and practical as well UG (H) and UG (G) syllabus.
SEMINARS AND WORKSHOPS ORGANIZED

  • Conducted a Seminar on ‘Household Disposables as Potential Biotope for Breeding of Dengue Vectors: Linking Wastes and Public Health’, organized by Zoology Department, Dhruba Chand Halder College on 06/12/2017.
  • Conducted a Seminar on ‘Mosquito Borne Diseases and their Management’, organized by Zoology Department, Dhruba Chand Halder College on 14/12/2017.

2. Attended symposium- 11 (List attached)
3. Presented paper/delivered talk on – 7 (List attached)
MEMBERSHIP OF ACADEMIC SOCIETIES
1. The Zoological Society, Kolkata (Life time member)

2. Acarological Society of America

RESEARCH  EXPERIENCE

PhD Project title: “Studies on Insect-Associated mites of West Bengal.”  

PhD Project Description:
The examination over 1050 specimens of insects representing 11 orders collected from 11 districts of West Bengal, India revealed the occurrence of a total of 47 species of mites belonging to 15 families, 23 genera under 3 orders. As per their nature of association with insects, it was found that 22 species were phoretic, 20 parasitic and 5 were predatory in nature. This also included 15 species which are new to science. Along with providing full descriptions, illustrations, collection records, distribution etc. the taxonomic keys of all the taxonomic categories were also given. The thesis also embodied an exhaustive review of literature highlighting the taxonomic work done and focusing their importance as bio-control agents.
Among the mite species included in the thesis, there was one species, Hemipteroseius indicus (Fam. Otopheidomenidae) which was found to be good bio-control agent of Red cotton bug, Dysdercus koenigii. The life cycle study of that species in two controlled temperatures, viz. 19° Celsius and 32 ° Celsius, were worked out. It was found that life cycle was completed at shorter time at 32° Celsius and took longer time at 19° Celsius. Irrespective of temperatures, there was no significant difference in sex ratio and it was found that the females had longer longevity compared to that of males. The observations compared the traits like longevity; survivorships, fecundity etc. and those were highly correlated to maximize the reproductive success and thereby increasing the fitness at the individual and population levels. The construction of life table indicated that reproductive potentiality (Ro = 16.57) at 32° Celsius than at 19° Celsius (Ro = 4.90). Variation was also there in case of intrinsic rate of increase and so also was there in age specific survival rate. The age specific production productively was lowest at 168 hours.
The biological information generated through this study would prove valuable in utilizing this predator in biological control programme.
In the preliminary laboratory experiment conducted for control of D. koenigii with the predatory mite H. indicus, the functional response of the predator-prey interaction was worked out. It was found that the lag of time between release of the mites and commencement of their activities, found to be due to adaptations of the mites with the experimental environment. The study also had shown that modeling of data pertaining to predatory efficiency of H. indicus on D. koenigii at different permutation-combination levels would enable to find out suitable control strategy for management of red cotton bug, an important cotton pest in India.
The laboratory study made for control of D. koenigii by H. indicus had opened a new vista proving potentiality of insect associated mites for control of agriculturally important insect pests and had thrown new light for taking up further study towards working out its functional and numerical responses of these predatory mites for its better utilization in biological control work.
TRAINING COURSES ATTENDED

2011

‘Statistical Applications’ Department of Statistics, University of Calcutta.

2012

 

Interaction programme for Research Scholars” Academic Staff College, The University of  Burdwan.

2018

“One day workshop on Zoology CBCS Syllabus” Surendranath College, in Collaboration with Board of Studies in Zoology, Universiy of Calcutta

LIST OF PUBLICATIONS

  • Sarangi, P.; Gupta, S.K. and Saha, G.K. Two new species of Sennertia (Acari: Chaetodactylidae) phoretic on Carpenter bees from West Bengal, India. Journal of Asia-Pacific Entomology 17(2014): 45-48.
  • Sarangi, P.; Gupta, S.K. and Saha, G.K. Seasonal occurrence of the ectoparasitic mite Hemipteroseius indicus on the red cotton bug, Dysdercuskoenigii (Hemiptera: Pyrrhocoridae) in West Bengal. Munis Entomology and Zoology 7(1): 292-296.
  • Sarangi, P.; Biswas, H.; Gupta, S.K. and Saha, G.K. (2012). Description of two new species of ectoparasitic mites of Podapolipus and Podapolipoides (Acari: Podapolipidae) on Oxya sp. from West Bengal, India. Journal of Asia-Pacific Entomology 15(2012):192-195.
  • Sarangi, P.; Biswas, H.; Gupta, S.K. and Saha, G.K. (2010). Mites associated with insects of Agri- horticultural importance. Proceedings of Zoological Society 63(1): 67-71.

EXTRA-CURRICULAR ACTIVITIES

  • Awarded silver medal in World Drawing competition from Japan in1997.
  • Awarded in many drawing competitions.
  • Awarded Third position in relay race in inter- school sports tournament, Kolkata.

HOBBY
Drawing, listening to music, reading.
Seminars attended


Year

Place

Event

Organizer

Remarks

2010

Kalyani (Kolkata, India)

International Symposium- cum- Workshop in Acarology

Bidhan Chandra KrishiViswavidyalaya in collaboration with International Journal of Acarology, UK and Acarology Development Foundation, USA.

Selected for Poster presentation:
A report of insect associated mites from West Bengal, India with descriptions of two new species of Sennertiam Oudemans 1905 (Acari: Chaetodactylidae).”

2012

Exhibition and Convention Centre, Daegu, South Korea

XXIVth International Congress of Entomology

Management Committee for the 24th Interna­tional Congress of Entomology , the Entomological Society of Korea, the Korean Society of Applied Ento­mology, the Korean Society of Sericultural Science, and the Apicultural Society of Korea.

Selected for poster presentation:

“Study of life history of Hemipteroseius indicus (Acari: Otopheidomenidae) parasitic on Dysdercus koenigii (Hemiptera: Pyrrhocoridae) in Kolkata, India.

Received Travel Grant from CSIR,DST and University of Calcutta.

2014

Science city auditorium, Kolkata

National conference on Biodiversity: Issues and Future Strategies

West Bengal Biodiversity Board and National Biodiversity Board.

Selected for poster presentation:

Exploring the diversity of insect associated mites in Kolkata and surrounding areas.”

2014

Department of Zoology, University of Calcutta

Ecological Modeling and Analyses

Department of Zoology, University of Calcutta.

Participated

2015

Centre for Research in Nanoscience & Nanotechnology, University of Calcutta

Allercon – 2015
The 5th National Conference on Respiratory Allergy & Immunology

Centre for Research in Nanoscience & Nanotechnology, and Allergy & Asthma Research Centre and Department of Zoology, University of Calcutta

Participated

2016

Barasat Government College

UGC Sponsored National Seminar on “ Biodiversity: Exploration, Exploitation, Conservation & Management – Vision & Mission”

Barasat Government College in collaboration with The Zoological Society,  Kolkata & West Bengal Biodiversity Board

Selected for paper presentation:

Effects of parasitic mites on insects of West Bengal.”

2016

Dhruba Chand Halder College

UGC Sponsored Golden Jubilee National Seminar on “Discoveries in Chemistry Those Changed the World”

Department of Chemistry, Dhruba Chand Halder College in collaboration with Netaji Subhas Engineering College.

Selected for paper presentation:

Bioluminescence in Aquatic Organisms”.

2017

Dhruba Chand Halder College

Awareness Programme on ‘Mosquito Borne Diseases and their Management’ 

Department of Zoology, Dhruba Chand Halder College.

Participated.

2017

Dhruba Chand Halder College

Awareness Programme on ‘Household Disposables as Potential Biotope for Breeding of Dengue Vectors: Linking Wastes and Public Health’

Department of Zoology, Dhruba Chand Halder College.

Participated.

2018

Ramakrishna Mission Institute of Culture & University of Calcutta (Ballygunge Campus)

INTZOOCON 2018 an international Conference in Zoology.

University of Calcutta

  Selected for paper presentation:

Exploring the diversity of insect associated mites in kolkata and surrounding areas

2020

Kennedy Hall, Institute of Jute Technology, University of Calcutta.

International Conference on Down Syndrome Research Indian Initiative in Global Perspective.

University of Calcutta, The Zoological Society, Kolkata, t2i research Society.

Selected for paper presentation:

Mosaic Down Syndrome and Precision Medicine: A novel clinico-genomic treatment strategy

 

 

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