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Annual Research & Review in Biology, ISSN: 2347-565X,Vol.: 28, Issue.: 6


Population Dynamics of Metazoan Parasites of Rhizoprionodon acutus from the Nellore Coast off Bay of Bengal


C. Srinivasa Kalyan1, M. Hemalatha1 and Anu Prasanna Vankara1*

1Department of Zoology, Yogi Vemana University, Kadapa, Andhra Pradesh, India.

Article Information


(1) Dr. George Perry, Dean and Professor of Biology, University of Texas at San Antonio, USA.


(1) Theodoros Mavraganis, Holar University College, Iceland.

(2) Tainã Gonçalves Loureiro, Federal University of Rio Grande do Sul, Brazil.

Complete Peer review History: http://www.sciencedomain.org/review-history/26511


Rhizoprionodon acutus (Rüppell) 1837, commonly known as ‘Milk shark’ is the frequently available elasmobranch from the Nellore (14.43°N 79.97°E.) coast off Bay of Bengal. A total of 152 R. acutus were collected from this coast during January, 2014- December, 2015, of which 89 hosts were infected with one or more parasites. A total of eleven species were collected, comprising of 6 cestodes, 2 nematodes, 1 Monogenean, 1 copepod and 1 isopod. Various ecological parameters such as prevalence, mean intensity, mean abundance and index of infection were calculated to determine the monthly population dynamics and the seasonal dynamics of the parasites in R. acutus. The study was carried out for both overall and groupwise parasitization. Endoparasitic infection predominated the ectoparasitic infection in the host. The study reveals the role of the temperature and season in the recruitment of parasite fauna in the hosts. The present study would be a great contribution to the knowledge of the metazoan parasite fauna of elasmobranch fishes to the future helminthologists from this Nellore Coast, Bay of Bengal.

Keywords :

Prevalence; mean intensity; mean abundance; index of infection; seasonal changes.

Full Article - PDF    Page 1-16

DOI : 10.9734/ARRB/2018/44374

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