Prediction of Fish Growth Rate and Food Availability in the Himalayan Waterbodies by Estimation of RNA/DNA Ratios

The IUP Journal of Genetics & Evolution, Vol. IV, No. 3, August 2011, pp. 15-19

4 Pages Posted: 23 Jun 2012 Last revised: 28 Jan 2014

See all articles by Gopal Krishnan Sivaraman

Gopal Krishnan Sivaraman

ICAR-CIFT ; ICAR

A. Barat

Directorate of Coldwater Fisheries Research (DCFR)

S. Ali

Directorate of Coldwater Fisheries Research (ICAR)

P.C. Mahanta

Directorate of Coldwater Fisheries Research (ICAR)

Date Written: June 22, 2012

Abstract

Recent biotechnological methods have made it possible to measure the real-time growth rate of fishes in response to changes in environmental conditions, as compared to the traditional methods. The accurate isolation and quantification from a tiny amount of tissue’s DNA, RNA and protein concentration would give the physiological status of fishes in their natural environment. The DNA content of tissue/cell remains stable and provides an index of cell number, whereas RNA content changes in response to transcription-dependent protein synthesis and is directly correlated with the growth rate of fish. The RNA/DNA ratio of tissue has proven to be a reliable estimator of real-time growth and its nutritional status of fish larvae and juvenile fish and it is an indicator of the protein synthesizing potential of a cell.

Keywords: Fish growth, DNA, RNA, R/D ratio, Nutritional status

Suggested Citation

Sivaraman, Gopal Krishnan and Barat, A. and Ali, S. and Mahanta, P.C., Prediction of Fish Growth Rate and Food Availability in the Himalayan Waterbodies by Estimation of RNA/DNA Ratios (June 22, 2012). The IUP Journal of Genetics & Evolution, Vol. IV, No. 3, August 2011, pp. 15-19, Available at SSRN: https://ssrn.com/abstract=2089171

Gopal Krishnan Sivaraman (Contact Author)

ICAR-CIFT ( email )

Principal scientist, MFB Division
Matsyapuri Post, Willingdon Island
Cochin, GA Gujarat 362269
India
9409309653 (Phone)
04842668212 (Fax)

ICAR ( email )

Plandu
PO Rajaulatu
Ranchi, Bihar 800014
India
362269 (Phone)
02876231576 (Fax)

A. Barat

Directorate of Coldwater Fisheries Research (DCFR) ( email )

Industrial Area, Bhimtal 263136
Uttarakhand
Nainital, Uttarakhand
India

S. Ali

Directorate of Coldwater Fisheries Research (ICAR) ( email )

Uttarakhand
Nainital, Uttarakhand 263136
India

P.C. Mahanta

Directorate of Coldwater Fisheries Research (ICAR) ( email )

Bhimtal
Uttarakhand
263136
India

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