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Cochin, India

Mandal A.,Rajiv Gandhi Center for Aquaculture | Varkey M.,Rajiv Gandhi Center for Aquaculture | Sobhanan S.P.,Rajiv Gandhi Center for Aquaculture | Mani A.K.,Rajiv Gandhi Center for Aquaculture | And 5 more authors.
Biochemical Genetics | Year: 2014

The taxonomic ambiguity of the Indian mud crab (genus Scylla de Hann 1833) is still a cause of concern as several papers have been published with misleading identification. This is the first attempt to resolve the taxonomic uncertainty of the mud crab commonly available in Indian coastal waters using molecular genetic markers (ITS-1 and sequencing of COI gene) combined with traditional morphometry. Additionally, we developed a PCR method by which Indian mud crab species can be identified rapidly and effectively. The results clearly indicate that the green morph of the Indian mud crab is Scylla serrata and the brown morph is S. olivacea. The S. serrata commonly mentioned in the literature from India is S. olivacea; the S. tranquebarica noted by many Indian researchers should belong to S. serrata. Caution should be taken when interpreting or implementing the biological, molecular, and aquaculture data in the literature. © 2014 Springer Science+Business Media.

Kapoor S.,National Bureau of Fish Genetic Resources | Kamalendra,National Bureau of Fish Genetic Resources | Bhatt J.P.,National Bureau of Fish Genetic Resources | Bhatt J.P.,Hemwati Nandan Bahuguna Garhwal University | And 6 more authors.
Indian Journal of Animal Sciences | Year: 2012

A method for developing cell cultures from Chitala chitala heart tissue is described. The tissues were minced and seeded in culture flasks and grown in Leibovitz L-15 medium supplemented with 20% foetal bovine serum. The radiation started after 4th day in heart. The medium was changed after every five days. The radiations were able to withstand a wide range of temperatures from 25°C to 28°C with an optimum temperature of 28°C. A partial monolayer was observed after 12 days in heart tissue. A primary culture was successfully obtained from heart tissue of C. chitala for the first time in India.

Mandal A.,Rajiv Gandhi Center for Aquaculture | Rao D.,Rajiv Gandhi Center for Aquaculture | Karuppaiah D.,Rajiv Gandhi Center for Aquaculture | Gopalakrishnan A.,Cochin Unit | And 3 more authors.
Gene | Year: 2012

The black tiger shrimp (Penaeus monodon), a commercially important penaeid species, is widely distributed across the Indo-Pacific region. Genetic diversity in P. monodon collected from eight geographical regions in Southwest, East and Andaman coastal waters of India (N=418) was investigated using 10 polymorphic microsatellite loci. Average observed heterozygosity at sampled loci were high, ranging from 0.643 (Coromandel Coast) to 0.753 (South Andaman). Pairwise F ST (ranged from 0.005 to 0.078) and R ST (ranged from 0.005 to 0.171) estimates revealed surprisingly strong and statistically significant genetic structure among tiger shrimp populations. A synthetic map generated by multidimensional scaling shows an apparent cline in allele frequencies paralleling the roughly circular flow of surface currents in the Bay of Bengal. Significant heterozygote deficiencies were noted in most population samples at most loci. Andaman Island sites showed the highest diversity. Recognition of high genetic diversity and distinct population structuring of P. monodon in Indian seas has important implications for future domestication of this species in India, for two reasons: identification of the best wild founding stocks for aquaculture and, subsequently, the potential impacts of release of domesticates to the wild, either accidentally or deliberately (i.e. for stock enhancement). © 2011 Elsevier B.V.

Bineesh K.K.,Central Marine Fisheries Research Institute CMFRI | Sajeela K.A.,Cochin Unit | Akhilesh K.V.,Central Marine Fisheries Research Institute CMFRI | Pillai N.G.K.,Central Marine Fisheries Research Institute CMFRI | Abdussamad E.M.,Central Marine Fisheries Research Institute CMFRI
Zootaxa | Year: 2011

A very rare bandfish, Sphenanthias whiteheadi Talwar 1973, is re-discovered and described from the southwest and southeast coasts of India for the first time after its original description and the rarity of the fish is challenged. A mitochondrial COI barcode sequence was generated for the specimen. Copyright © 2011, Magnolia Press.

Akhilesh K.V.,Central Marine Fisheries Research Institute | Shanis C.P.R.,Central Marine Fisheries Research Institute | White W.T.,CSIRO | Manjebrayakath H.,Central Marine Fisheries Research Institute | And 5 more authors.
Environmental Biology of Fishes | Year: 2013

Since 28th May 2001, Whale shark Rhincodon typus Smith, 1828 have received the highest protected status for an animal in India through the Indian Wildlife (Protection) Act, 1972 Schedule-1. However, landings have still been recorded off the Indian coast since 2001, mostly as incidental bycatch in commercial fishing operations, and other sightings have also been reported. In the 1990's, a targeted whale shark fishery existed off the Gujarat coast following increased demand for the flesh in some other Asian countries. Since the ban, landings of whale sharks have decreased substantially with only 79 recorded between 2001 and 2011. Landings were recorded in each year and in each month of the year with the highest landings in January and February. Between 2001 and 2011, the smallest specimen reported from Indian waters was a 94 cm TL individual and the largest was a 13.7 m TL individual, with most individuals recorded in the 4-6 m TL size class. Small juveniles of less than 3 m TL are rarely recorded in the literature and appear to be rarely observed globally. Between 2006 and 2011, seven juveniles of less than 3 m TL were recorded from two landing sites. Despite the continued landing of whale sharks along the Indian coasts since 2001, the protection of this species appears to have substantially reduced the catches with only incidental landings and strandings now evident. The protection status of whale sharks in India is generally well understood by fishers, but still there is need for further education regarding the current national legislation and vulnerability of the species. © 2012 Springer Science+Business Media B.V.

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