J. Bio. Env. Sci.10(2), 106-114, February 2017
Morphometric parameters, length-weight relationship and condition factor of indigenous fish belong to Devario genus, with great export and economic potential was evaluated from three different river systems of South Kerala, viz, Neyyar, Vamanapuram and Karamana river system. Since the taxonomy and nomenclature of many Cyprinids are being modified, morphometric evaluation of any Cyprinid is significant to reduce the ambiguity in taxonomy and systematics especially to delineate and document the population or habitat/environmental differences within species. A total of 19 morphometric parameters including length and weight of D. species was recorded from three river systems and compared statistically. Principal Component Analysis (PCA) was employed to delineate the habitat difference in the same species and elucidated head length as first principal component followed by snout length and pre orbital length were identified as second principal component and body depth as third principal component to distinguish three populations of the same species. Again morphometric comparison using ANOVA revealed that snout length, eye diameter and pre orbital length and pectoral fin length differed significantly between habitats within same species. Length weight relationship showed a negative allometric growth between rivers and condition factor showed fishes were in good condition with Fulton condition factor above unity.
Anene A. 2005. Condition factor of four cichlid species of a man-made lake in Imo state, southeastern Nigeria. Turkish Journal of Fisheries and Aquatic Science 5, 43-47.
Bagenal TB. 1978. Methods for Assessment of Fish Production in Freshwater. 3rd Edn., Blackwell Scientific Publication, Oxford, UK p. 365.
Beavan R. 1877. Handbook of the Freshwater Fishes of India. L.Reeve and Co. London p. 306.
Blackwell BG, Brown ML, Willis DW. 2000. Relative weight status and current use in fisheries assessment and management. Rev. Fish. Sci 8, 1- 44.
Bulow FL, Zeman ME, Winningham JR, Hudson WF.1981. Seasonal variation in RNA-DNA ratios and indicators of feeding, reproduction, energy storage and condition in a population of blue gill, Lepomis macrochirus (Rafinesque 1819). Journal of Fish Biology 18, 237-244.
Dey S, Kharbuli SM, Rahul Chakraborty, Goswami UC, Bhattacharyya SP. 2009.Taxonomic effect of environmental acid stress of a hill stream fish Devario aequipinnatus: A scanning electron microscope evaluation. In: Microscopy Research and Technique 72, 76-8.
Dey S, Ramanujam SN, Mahapatra BK. 2014. Breeding and development of ornamental hill stream fish Devario Aequipinnatus (Mc Clelland) in captivity. International Journal of Fisheries and Aquatic Studies 1(4), 01- 07.
Edvinthangam P, Sabaridasan, Palanikani R, Divya Sapphire M, Soranam R. 2015. Morph metric variation studies on Cypriniformes fish of Devario aequipinnatus from selected rivers/streams of the southern Western Ghats, Tamil Nadu, India. International Research Journal of Environment Science 4(10), 77-86.
Froese R. 2006. Cube law, condition factor and weight length relationship: history, meta analysis and recommendations. Journal of Applied Icthyology 22, 241-253.
Fulton TW. 1904. The rate of growth of fishes. Twenty-second Annual Report, Part 3. Fisheries Board of Scotland, Edinburgh 141- 241.
Gulland JA. 1983.Fish Stock Assessment: A Manual of Basic Methods. FAO/Wiley series, Food and Agriculture Organization, Rome: FAO Fisheries Technical Page 393.
Jennings S, Kaiser MJ, Reynolds JD. 2001. Marine Fisheries Ecology. Blackwell Science Publication, Oxford p. 417.
King M. 1995. Fisheries Biology: Assessment and Management. Fishing news Books publication, Oxford, UK p. 341.
Le Cren ED. 1951. The Length- weight relationship and seasonal cycle in gonad weight and condition in Perch (Peria Fluviatilis). Journal of Animal Ecology 20, 201-219.
Meyers GS. 1938. Fresh-water fishes and West Indian zoogeography. Annual Report of the Board of Regents of the Smithsonian Institution 92 (1938, for the year 1937), 339-364.
Mir JI, Shabir R, Mir FA. 2012. Length- weight relationship and condition factor of Schizopyge curvifrons (Heckel, 1838) from River Jhelum, Kashmir, India. World Journal of Fish and Marine Science 4(3), 325-329.
Mustafa G, Brooks AC. 2008. Status of fisheries resource and management approach in the open `beels’ of Bangladesh: A comparative case study. Asian Fisheries Science 21, 189-203.
Naeem M, Salam A. 2005. Morphometric study of freshwater bighead carp, Aristichthys nobilis from Pakistan in relation to body size. Pakistan Journal of Environment Science 8(5), 759-762.
Nayman. 1965. Growth and ecology of fish population. Journal of Animal Ecology 20, 201-219.
Oni SK, Olayemi JY, Adegboye JD. 1983. Comparative physiology of three ecologically distinct freshwater fishes, Alestes nurse Ruppel, Synodontis schall Bloch and Synodontis schneider and Tilapia zilli Gervais. Journal of Fish Biology 22, 105-109.
Pauly D. 1984. Fish population dynamics in tropical waters. A manual for use with programmable calculators. ICLARM studies and reviews 8. ICLARM, Manila, Philippines 325.
Pervin MR, Mortuza MG. 2008. Notes on length-weight relationship and condition factor of freshwater fish, Labeo boga (Hamilton) (Cypriniformes: Cyprinidae). University Journal of Zoology Rajshahi University 27, 97-98.
Sarkar UK, Khan GE, Dabas A, Pathak AK, Mir JI, Rebello SC, Pal A, Singh SP. 2013. Length weight relationship and condition factor of selected freshwater fish species found in River Ganga, Gomati and Rapti, India. Journal of Environmental Biology 34, 951-956.
Shini KK, Preethakumari VM, Ramitha UC, Vasandakumar MV. 2015. Helminth parasitic fauna of a cyprinid fish Devario malabaricus (Jerdon). International Journal of Fisheries and Aquatic Studies 2(5), 175-179.
Sparre P, Ursin E, Venema SC. 1989. Introduction to Tropical Fish stock Assessment, Part 1. Manual. FAO Fish. Tech. Pap, 306: 1-376.
Sukham S, Chingakham B, ThoidingjamL, Waikhom G. 2013. Cytogenetic characterization of Devario aequipinnatus (Me Clelland, 1839) and genus Devario yuensis (Arunkumar and Thombi, 1998) (Cypriniformes: Cyprinidae) from Manipur, North East India. Turkish journal of Zoology 37, 706-712.
Tesch FW. 1971. Age and growth. In: Ricker WE, ED. Methods for assessments of fish production in freshwaters. Blackwell Scientific Publication, Oxford p.98-130.
Thomas JS, Venu and Kurup BM. 2003. Length-weight relationship of some deep-sea fish inhabiting the continental slope beyond 250m depth along the West coast of India, NAGA. World Fish Center Quarterly 26(2), 17-21.